Malicious
Malicious

440381133a12a48436607810f80d95a8

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PE Executable
MD5: 440381133a12a48436607810f80d95a8
Size: 48.64 KB
application/x-dosexec
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Symbol Obfuscation Score Low
MD5 440381133a12a48436607810f80d95a8
Sha1 cf303539c535344104038771e153e4964fd456e0
Sha256 82de6fd1c04c38120096829a23bfe9ed67089b60f46bfa73c88464b5e32210c8
Sha384 70b619f21421d87322dfd79ed5997326032c208cfa24660d64a09e1154f87c6bc3bbeddbdce0c8f1c5a10e5c7817fff4
Sha512 631e6deda919762d59fa2ba06999bf66e2e80e0262e2f9c951864dd15938ea4d718d006b2600a71d86da2c1d962c434a604ddb0acbd3ee3401ec59a89e4665c9
SSDeep 768:Mq+s3pUtDILNCCa+DioeJe+KAiLQ8YbYg/d/O51cvEgK/J7ZVc6KN:Mq+AGtQOoCKwzbPFmfcnkJ7ZVclN
TLSH 26236C4037A8C136E2FD4BB5A8F392458275D2676D03D65D6CC814AA1B23BC597036FE
PeID
Microsoft Visual C# / Basic.NET / MS Visual Basic 2005 - ASL
440381133a12a48436607810f80d95a8
Malicious
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_VERSION
ID:0001
ID:0
RT_MANIFEST
ID:0001
ID:0
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.
Path pe:exe>pe:rsrc>bin
Shape pe:exe>pe:rsrc>bin
malicious 3 nodes
Config. Field Value
Key (AES_256) ZW13bThuhuhuhuhuhuhuhuhuhuhu
Pastebin -huhuhuhu
Certificate MIICMDhuhuhuhuhuhuhuhuhuhuhu
ServerSignature jrby9Whuhuhuhuhuhuhuhuhuhuhu
Install fhuhuhuhu
BDOS fhuhuhuhu
Anti-VM fhuhuhuhu
Install-Folder %Aphuhuhuhu
Hosts masterhuhuhuhuhuhuhuhuhuhuhu
Ports 4huhuhuhu
Mutex DcRatMhuhuhuhuhuhuhu
Version 1huhuhuhu
Delay 1huhuhuhu
Group Dehuhuhuhu
We extracted this malware's full configuration (C2, credentials, campaign IDs…).
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Name Value
Module Name
masterconstrucciones.com.co.exe
Full Name
masterconstrucciones.com.co.exe
EntryPoint
System.Void Client.Program::Main()
Scope Name
masterconstrucciones.com.co.exe
Scope Type
ModuleDef
Kind
Windows
Runtime Version
v4.0.30319
Tables Header Version
512
WinMD Version
<null>
Assembly Name
masterconstrucciones.com.co
Assembly Version
1.0.7.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.0
Total Strings
150
Main Method
System.Void Client.Program::Main()
Main IL Instruction Count
59
Main IL 
ldc.i4.0 <null>
stloc.0 <null>
br IL_0015: ldloc.0
ldc.i4 1000
call System.Void System.Threading.Thread::Sleep(System.Int32)
ldloc.0 <null>
ldc.i4.1 <null>
add <null>
stloc.0 <null>
ldloc.0 <null>
ldsfld System.String Client.Settings::De_lay
call System.Int32 System.Convert::ToInt32(System.String)
blt.s IL_0007: ldc.i4 1000
call System.Boolean Client.Settings::InitializeSettings()
brtrue IL_0032: nop
ldc.i4.0 <null>
call System.Void System.Environment::Exit(System.Int32)
nop <null>
ldsfld System.String Client.Settings::An_ti
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0047: call System.Boolean Client.Helper.MutexControl::CreateMutex()
call System.Void Client.Helper.Anti_Analysis::RunAntiAnalysis()
call System.Boolean Client.Helper.MutexControl::CreateMutex()
brtrue IL_0057: ldsfld System.String Client.Settings::Anti_Process
ldc.i4.0 <null>
call System.Void System.Environment::Exit(System.Int32)
ldsfld System.String Client.Settings::Anti_Process
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_006B: ldsfld System.String Client.Settings::BS_OD
call System.Void Client.Helper.AntiProcess::StartBlock()
ldsfld System.String Client.Settings::BS_OD
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0089: ldsfld System.String Client.Settings::In_stall
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_0089: ldsfld System.String Client.Settings::In_stall
call System.Void Client.Helper.ProcessCritical::Set()
ldsfld System.String Client.Settings::In_stall
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_009D: call System.Void Client.Helper.Methods::PreventSleep()
call System.Void Client.Install.NormalStartup::Install()
call System.Void Client.Helper.Methods::PreventSleep()
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_00B1: call System.Void Client.Connection.Amsi::Bypass()
call System.Void Client.Helper.Methods::ClearSetting()
call System.Void Client.Connection.Amsi::Bypass()
leave IL_00C1: nop
pop <null>
leave IL_00C1: nop
nop <null>
call System.Boolean Client.Connection.ClientSocket::get_IsConnected()
brtrue IL_00D6: leave IL_00E1
call System.Void Client.Connection.ClientSocket::Reconnect()
call System.Void Client.Connection.ClientSocket::InitializeClient()
leave IL_00E1: ldc.i4 5000
pop <null>
leave IL_00E1: ldc.i4 5000
ldc.i4 5000
call System.Void System.Threading.Thread::Sleep(System.Int32)
br.s IL_00C1: nop
Info
PE Detect: PeReader OK (file layout)
Module Name
masterconstrucciones.com.co.exe
Full Name
masterconstrucciones.com.co.exe
EntryPoint
System.Void Client.Program::Main()
Scope Name
masterconstrucciones.com.co.exe
Scope Type
ModuleDef
Kind
Windows
Runtime Version
v4.0.30319
Tables Header Version
512
WinMD Version
<null>
Assembly Name
masterconstrucciones.com.co
Assembly Version
1.0.7.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.0
Total Strings
150
Main Method
System.Void Client.Program::Main()
Main IL Instruction Count
59
Main IL 
ldc.i4.0 <null>
stloc.0 <null>
br IL_0015: ldloc.0
ldc.i4 1000
call System.Void System.Threading.Thread::Sleep(System.Int32)
ldloc.0 <null>
ldc.i4.1 <null>
add <null>
stloc.0 <null>
ldloc.0 <null>
ldsfld System.String Client.Settings::De_lay
call System.Int32 System.Convert::ToInt32(System.String)
blt.s IL_0007: ldc.i4 1000
call System.Boolean Client.Settings::InitializeSettings()
brtrue IL_0032: nop
ldc.i4.0 <null>
call System.Void System.Environment::Exit(System.Int32)
nop <null>
ldsfld System.String Client.Settings::An_ti
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0047: call System.Boolean Client.Helper.MutexControl::CreateMutex()
call System.Void Client.Helper.Anti_Analysis::RunAntiAnalysis()
call System.Boolean Client.Helper.MutexControl::CreateMutex()
brtrue IL_0057: ldsfld System.String Client.Settings::Anti_Process
ldc.i4.0 <null>
call System.Void System.Environment::Exit(System.Int32)
ldsfld System.String Client.Settings::Anti_Process
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_006B: ldsfld System.String Client.Settings::BS_OD
call System.Void Client.Helper.AntiProcess::StartBlock()
ldsfld System.String Client.Settings::BS_OD
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0089: ldsfld System.String Client.Settings::In_stall
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_0089: ldsfld System.String Client.Settings::In_stall
call System.Void Client.Helper.ProcessCritical::Set()
ldsfld System.String Client.Settings::In_stall
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_009D: call System.Void Client.Helper.Methods::PreventSleep()
call System.Void Client.Install.NormalStartup::Install()
call System.Void Client.Helper.Methods::PreventSleep()
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_00B1: call System.Void Client.Connection.Amsi::Bypass()
call System.Void Client.Helper.Methods::ClearSetting()
call System.Void Client.Connection.Amsi::Bypass()
leave IL_00C1: nop
pop <null>
leave IL_00C1: nop
nop <null>
call System.Boolean Client.Connection.ClientSocket::get_IsConnected()
brtrue IL_00D6: leave IL_00E1
call System.Void Client.Connection.ClientSocket::Reconnect()
call System.Void Client.Connection.ClientSocket::InitializeClient()
leave IL_00E1: ldc.i4 5000
pop <null>
leave IL_00E1: ldc.i4 5000
ldc.i4 5000
call System.Void System.Threading.Thread::Sleep(System.Int32)
br.s IL_00C1: nop
Key (AES_256) MUTEXmalicious
ZW13bThuhuhuhuhuhuhuhuhuhuhu
CnC CNCmalicious
masterhuhuhuhuhuhuhuhuhuhuhu
Ports PORTmalicious
4huhuhuhu
Mutex MUTEXmalicious
DcRatMhuhuhuhuhuhuhu
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