Deep Malware Analysis of 421a3d6d50dfe2c4cb472d43f0a0d547 | md5: 421a3d6d50dfe2c4cb472d43f0a0d547 | Executable | PE (Portable Executable) | Managed .NET | PE File Layout | Win 32 Exe | x86 | .Net | SOS: 0.18 | Loader | Crypter | Malicious | XBinder | XBinder Variant | XRijMut Loader | XBinder Resource | SOS: 0.99 | PDB Path | T1059.007 | SOS: 0.40 | Fody/Costura Packer | SOS: 0.37 | SOS: 0.19 | SOS: 0.16 | SOS: 0.23 | SOS: 0.24 | SOS: 0.31 | SOS: 0.20 | SOS: 0.25 | SOS: 0.35 | SOS: 0.29 | SOS: 0.28 | SOS: 0.34

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Symbol Obfuscation Score Very low

MD5	421a3d6d50dfe2c4cb472d43f0a0d547
Sha1	4c80cf45f02b20d996b1bca9cb9d9fe4ede2f733
Sha256	bc9f8ebefe5505eb504755f12e4e29f40b4d6ff2662bf519b1d425c66ab16e6b
Sha384	8e38abefd528e8f13b9cf1b6b49eeced8065e021a35156f9b9b2bcaf1e2483b6af6bdd97f92b378ade415113a8570ab9
Sha512	0024d16f6e41e218f567309de5f18a7fe1f03b6f1a4326dbb3cb5c2296893787f6c76cf249c2be49e1fe79035057fcd80906891f2ce3413542b78a8435322407
SSDeep	196608:OHI19gBy656kqCaCbKn20erw4CkdggvEUq10vu:GIUBy86KLbKCrwJFUq+
TLSH	8F66BE17C4533A19F40B48D0CCDEE5DEF0C285643A2D82C09D89A4EAD26267B57DDBAF

PeID

.NET executableMicrosoft Visual C# / Basic .NETMicrosoft Visual C# / Basic.NET / MS Visual Basic 2005 - ASL Microsoft Visual C# v7.0 / Basic .NETMicrosoft Visual C++ v6.0 DLLMicrosoft Visual Studio .NETUPolyX 0.3 -> delikon

STICH beta Structural Threat Infection Chain Hash

A content-independent fingerprint of the infection method: successive formats, internal objects and MITRE techniques from the initial file to each final payload.

STICH Path = the fingerprint (canonical chain with techniques) STICH Shape = structure only Only determinant branches produce STICH Paths.

5 / 5

Path pe:exe~T1059.007>pe:dll>pe:rsrc>bin

Shape pe:exe>pe:dll>pe:rsrc>bin

malicious 4 nodes

Path pe:exe~T1059.007>pe:dll>bin

Shape pe:exe>pe:dll>bin

malicious 3 nodes

Config. Field	Value
ref_elem_0x0000000E	Pulsarhuhuhuhuhuhuhu
ref_elem_0x00000016	obf.exhuhuhuhuhuhuhu
Workpath	%Aphuhuhuhu
SPL	-huhuhuhu
Mutex	Kv1srhuhuhuhuhuhuhu

We extracted this malware's full configuration (C2, credentials, campaign IDs…).

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Name	Value
Info	PE Detect: PeReader OK (file layout)
Module Name	Output.exe
Full Name	Output.exe
EntryPoint	System.Void Program::Main()
Scope Name	Output.exe
Scope Type	ModuleDef
Kind	Windows
Runtime Version	v4.0.30319
Tables Header Version	512
WinMD Version	<null>
Assembly Name	Output
Assembly Version	1.6.0.0
Assembly Culture	<null>
Has PublicKey	False
PublicKey Token	<null>
Target Framework	<null>
Total Strings	11
Main Method	System.Void Program::Main()
Main IL Instruction Count	159
Main IL	ldc.i4.1 <null> stloc.s V_5 call System.Boolean Program::CreateMutex() brtrue.s IL_0013: call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::ClearProjectError() ldc.i4.2 <null> stloc.s V_5 ldc.i4.0 <null> call System.Void System.Environment::Exit(System.Int32) call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::ClearProjectError() ldc.i4.1 <null> stloc.3 <null> ldc.i4.5 <null> stloc.s V_5 ldsfld System.Collections.Generic.List`1<System.String> Program::List callvirt System.Collections.Generic.List`1/Enumerator<System.String> System.Collections.Generic.List`1<System.String>::GetEnumerator() stloc.2 <null> br IL_0130: ldloca.s V_2 ldloca.s V_2 call System.String System.Collections.Generic.List`1/Enumerator<System.String>::get_Current() stloc.0 <null> ldc.i4.6 <null> stloc.s V_5 ldsfld System.String Program::Workpath call System.Object Program::GETP(System.String) ldstr \ call System.Object Microsoft.VisualBasic.CompilerServices.Operators::ConcatenateObject(System.Object,System.Object) ldloc.0 <null> call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) ldsfld System.String Program::SPL ldc.i4.m1 <null> ldc.i4.0 <null> call System.String[] Microsoft.VisualBasic.Strings::Split(System.String,System.String,System.Int32,Microsoft.VisualBasic.CompareMethod) ldc.i4.0 <null> ldelem.ref <null> call System.Object Microsoft.VisualBasic.CompilerServices.Operators::ConcatenateObject(System.Object,System.Object) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stloc.1 <null> ldc.i4.7 <null> stloc.s V_5 ldloc.0 <null> call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) ldsfld System.String Program::SPL ldc.i4.m1 <null> ldc.i4.0 <null> call System.String[] Microsoft.VisualBasic.Strings::Split(System.String,System.String,System.Int32,Microsoft.VisualBasic.CompareMethod) ldc.i4.2 <null> ldelem.ref <null> ldstr True ldc.i4.0 <null> call System.Int32 Microsoft.VisualBasic.CompilerServices.Operators::CompareString(System.String,System.String,System.Boolean) ldc.i4.0 <null> bne.un.s IL_00CB: ldc.i4.s 13 ldc.i4.8 <null> stloc.s V_5 ldloc.1 <null> call System.Boolean System.IO.File::Exists(System.String) brtrue.s IL_00C9: br.s IL_0123 ldc.i4.s 9 stloc.s V_5 ldloc.1 <null> ldloc.0 <null> call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) ldsfld System.String Program::SPL ldc.i4.m1 <null> ldc.i4.0 <null> call System.String[] Microsoft.VisualBasic.Strings::Split(System.String,System.String,System.Int32,Microsoft.VisualBasic.CompareMethod) ldc.i4.0 <null> ldelem.ref <null> call System.Byte[] Program::GetTheResource(System.String) call System.Void System.IO.File::WriteAllBytes(System.String,System.Byte[]) ldc.i4.s 10 stloc.s V_5 ldloc.1 <null> call System.Diagnostics.Process System.Diagnostics.Process::Start(System.String) pop <null> br.s IL_0123: ldc.i4.s 19 ldc.i4.s 13 stloc.s V_5 ldc.i4.s 14 stloc.s V_5 ldloc.1 <null> ldloc.0 <null> call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) ldsfld System.String Program::SPL ldc.i4.m1 <null> ldc.i4.0 <null> call System.String[] Microsoft.VisualBasic.Strings::Split(System.String,System.String,System.Int32,Microsoft.VisualBasic.CompareMethod) ldc.i4.0 <null> ldelem.ref <null> call System.Byte[] Program::GetTheResource(System.String) call System.Void System.IO.File::WriteAllBytes(System.String,System.Byte[]) ldc.i4.s 15 stloc.s V_5 ldloc.0 <null> call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) ldsfld System.String Program::SPL ldc.i4.m1 <null> ldc.i4.0 <null> call System.String[] Microsoft.VisualBasic.Strings::Split(System.String,System.String,System.Int32,Microsoft.VisualBasic.CompareMethod) ldc.i4.1 <null> ldelem.ref <null> ldstr True ldc.i4.0 <null> call System.Int32 Microsoft.VisualBasic.CompilerServices.Operators::CompareString(System.String,System.String,System.Boolean) ldc.i4.0 <null> bne.un.s IL_0123: ldc.i4.s 19 ldc.i4.s 16 stloc.s V_5 ldloc.1 <null> call System.Diagnostics.Process System.Diagnostics.Process::Start(System.String) pop <null> ldc.i4.s 19 stloc.s V_5 call System.Void System.GC::Collect() ldc.i4.s 20 stloc.s V_5 ldloca.s V_2 call System.Boolean System.Collections.Generic.List`1/Enumerator<System.String>::MoveNext() brtrue IL_002D: ldloca.s V_2 ldloca.s V_2 constrained. System.Collections.Generic.List`1/Enumerator<System.String> callvirt System.Void System.IDisposable::Dispose() leave IL_01F8: ldloc.s V_4 ldloc.s V_4 br.s IL_0156: ldc.i4.0 ldloc.s V_4 ldc.i4.1 <null> add <null> ldc.i4.0 <null> stloc.s V_4 switch dnlib.DotNet.Emit.Instruction[] leave.s IL_01ED: ldc.i4 -2146828237 ldloc.s V_5 stloc.s V_4 ldloc.3 <null> switch dnlib.DotNet.Emit.Instruction[] leave.s IL_01ED: ldc.i4 -2146828237 isinst System.Exception ldnull <null> cgt.un <null> ldloc.3 <null> ldc.i4.0 <null> cgt.un <null> and <null> ldloc.s V_4 ldc.i4.0 <null> ceq <null> and <null> endfilter <null> castclass System.Exception call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::SetProjectError(System.Exception) leave.s IL_01B8: ldloc.s V_5 ldc.i4 -2146828237 call System.Exception Microsoft.VisualBasic.CompilerServices.ProjectData::CreateProjectError(System.Int32) throw <null> ldloc.s V_4 brfalse.s IL_0201: ret call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::ClearProjectError() ret <null>
Module Name	Output.exe
Full Name	Output.exe
EntryPoint	System.Void Program::Main()
Scope Name	Output.exe
Scope Type	ModuleDef
Kind	Windows
Runtime Version	v4.0.30319
Tables Header Version	512
WinMD Version	<null>
Assembly Name	Output
Assembly Version	1.6.0.0
Assembly Culture	<null>
Has PublicKey	False
PublicKey Token	<null>
Target Framework	<null>
Total Strings	11
Main Method	System.Void Program::Main()
Main IL Instruction Count	159
Main IL	ldc.i4.1 <null> stloc.s V_5 call System.Boolean Program::CreateMutex() brtrue.s IL_0013: call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::ClearProjectError() ldc.i4.2 <null> stloc.s V_5 ldc.i4.0 <null> call System.Void System.Environment::Exit(System.Int32) call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::ClearProjectError() ldc.i4.1 <null> stloc.3 <null> ldc.i4.5 <null> stloc.s V_5 ldsfld System.Collections.Generic.List`1<System.String> Program::List callvirt System.Collections.Generic.List`1/Enumerator<System.String> System.Collections.Generic.List`1<System.String>::GetEnumerator() stloc.2 <null> br IL_0130: ldloca.s V_2 ldloca.s V_2 call System.String System.Collections.Generic.List`1/Enumerator<System.String>::get_Current() stloc.0 <null> ldc.i4.6 <null> stloc.s V_5 ldsfld System.String Program::Workpath call System.Object Program::GETP(System.String) ldstr \ call System.Object Microsoft.VisualBasic.CompilerServices.Operators::ConcatenateObject(System.Object,System.Object) ldloc.0 <null> call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) ldsfld System.String Program::SPL ldc.i4.m1 <null> ldc.i4.0 <null> call System.String[] Microsoft.VisualBasic.Strings::Split(System.String,System.String,System.Int32,Microsoft.VisualBasic.CompareMethod) ldc.i4.0 <null> ldelem.ref <null> call System.Object Microsoft.VisualBasic.CompilerServices.Operators::ConcatenateObject(System.Object,System.Object) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stloc.1 <null> ldc.i4.7 <null> stloc.s V_5 ldloc.0 <null> call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) ldsfld System.String Program::SPL ldc.i4.m1 <null> ldc.i4.0 <null> call System.String[] Microsoft.VisualBasic.Strings::Split(System.String,System.String,System.Int32,Microsoft.VisualBasic.CompareMethod) ldc.i4.2 <null> ldelem.ref <null> ldstr True ldc.i4.0 <null> call System.Int32 Microsoft.VisualBasic.CompilerServices.Operators::CompareString(System.String,System.String,System.Boolean) ldc.i4.0 <null> bne.un.s IL_00CB: ldc.i4.s 13 ldc.i4.8 <null> stloc.s V_5 ldloc.1 <null> call System.Boolean System.IO.File::Exists(System.String) brtrue.s IL_00C9: br.s IL_0123 ldc.i4.s 9 stloc.s V_5 ldloc.1 <null> ldloc.0 <null> call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) ldsfld System.String Program::SPL ldc.i4.m1 <null> ldc.i4.0 <null> call System.String[] Microsoft.VisualBasic.Strings::Split(System.String,System.String,System.Int32,Microsoft.VisualBasic.CompareMethod) ldc.i4.0 <null> ldelem.ref <null> call System.Byte[] Program::GetTheResource(System.String) call System.Void System.IO.File::WriteAllBytes(System.String,System.Byte[]) ldc.i4.s 10 stloc.s V_5 ldloc.1 <null> call System.Diagnostics.Process System.Diagnostics.Process::Start(System.String) pop <null> br.s IL_0123: ldc.i4.s 19 ldc.i4.s 13 stloc.s V_5 ldc.i4.s 14 stloc.s V_5 ldloc.1 <null> ldloc.0 <null> call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) ldsfld System.String Program::SPL ldc.i4.m1 <null> ldc.i4.0 <null> call System.String[] Microsoft.VisualBasic.Strings::Split(System.String,System.String,System.Int32,Microsoft.VisualBasic.CompareMethod) ldc.i4.0 <null> ldelem.ref <null> call System.Byte[] Program::GetTheResource(System.String) call System.Void System.IO.File::WriteAllBytes(System.String,System.Byte[]) ldc.i4.s 15 stloc.s V_5 ldloc.0 <null> call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) ldsfld System.String Program::SPL ldc.i4.m1 <null> ldc.i4.0 <null> call System.String[] Microsoft.VisualBasic.Strings::Split(System.String,System.String,System.Int32,Microsoft.VisualBasic.CompareMethod) ldc.i4.1 <null> ldelem.ref <null> ldstr True ldc.i4.0 <null> call System.Int32 Microsoft.VisualBasic.CompilerServices.Operators::CompareString(System.String,System.String,System.Boolean) ldc.i4.0 <null> bne.un.s IL_0123: ldc.i4.s 19 ldc.i4.s 16 stloc.s V_5 ldloc.1 <null> call System.Diagnostics.Process System.Diagnostics.Process::Start(System.String) pop <null> ldc.i4.s 19 stloc.s V_5 call System.Void System.GC::Collect() ldc.i4.s 20 stloc.s V_5 ldloca.s V_2 call System.Boolean System.Collections.Generic.List`1/Enumerator<System.String>::MoveNext() brtrue IL_002D: ldloca.s V_2 ldloca.s V_2 constrained. System.Collections.Generic.List`1/Enumerator<System.String> callvirt System.Void System.IDisposable::Dispose() leave IL_01F8: ldloc.s V_4 ldloc.s V_4 br.s IL_0156: ldc.i4.0 ldloc.s V_4 ldc.i4.1 <null> add <null> ldc.i4.0 <null> stloc.s V_4 switch dnlib.DotNet.Emit.Instruction[] leave.s IL_01ED: ldc.i4 -2146828237 ldloc.s V_5 stloc.s V_4 ldloc.3 <null> switch dnlib.DotNet.Emit.Instruction[] leave.s IL_01ED: ldc.i4 -2146828237 isinst System.Exception ldnull <null> cgt.un <null> ldloc.3 <null> ldc.i4.0 <null> cgt.un <null> and <null> ldloc.s V_4 ldc.i4.0 <null> ceq <null> and <null> endfilter <null> castclass System.Exception call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::SetProjectError(System.Exception) leave.s IL_01B8: ldloc.s V_5 ldc.i4 -2146828237 call System.Exception Microsoft.VisualBasic.CompilerServices.ProjectData::CreateProjectError(System.Int32) throw <null> ldloc.s V_4 brfalse.s IL_0201: ret call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::ClearProjectError() ret <null>