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PE Executable
MD5: a88b0fb1d2041cfd453a06a4b9ad9a1c
Size: 64.51 KB
application/x-dosexec
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File
Size
64.51 KB · 64,512 B
First seen
2025-12-11 17:00 · 10 months ago
Last seen
2025-12-11 17:00 · 10 months ago
Last analysis
2026-01-04 23:40 · 9 months ago
Hashes
MD5 a88b0fb1d2041cfd453a06a4b9ad9a1c Sha1 2f05ad6a293101c91b1c6c19f07bd6da25dc1b8d Sha256 2204c94bc89edc307127a76122c49484aeecb9d4a84959d22da5407e8427c766 Sha384 5d8d0e97a344777d1a2069f50bc5cd2d39670225bc55e4683f43bd2b1401cd4f117bda46efc8f7888b238e583ae0b1bb Sha512 25e85791e8f9af584cb48f28792820656915cb88e199160d83f370b2a850c87e6fc677c67d68a7adc0925c3f37c7ca7e12c92a7919e0d7b2951bdd0d4a9cc901 SSDeep 768:kNpSavt7iPbVoiU9JSC6bZrPym873zcHyYf1++SCv7mqb2nopwHko82wyOE+8G9u:kptUWAP8fcHyesGbb1wOpyjG9ZVclN TLSH FD536B003798C965E2AD8AF8BCF2950146B1D5772102DB5E7CC414DBAB9EFC64A132EF
Detection
PeID
.NET executableMicrosoft Visual C# / Basic .NETMicrosoft Visual C# / Basic.NET / MS Visual Basic 2005 - ASL Microsoft Visual C# v7.0 / Basic .NETMicrosoft Visual Studio .NET
Symbol obfuscation
Low
1 malicious · 3 files
EXEa88b0fb1d2041cfd453a06a4b9ad9a1cDcRat
Structure
Config. Field Value
Key (AES_256) Umlhb0huhuhuhuhuhuhuhuhuhuhu
Pastebin -huhuhuhu
Certificate MIICMDhuhuhuhuhuhuhuhuhuhuhu
ServerSignature P/LVqMhuhuhuhuhuhuhuhuhuhuhu
Install fhuhuhuhu
BDOS fhuhuhuhu
Anti-VM fhuhuhuhu
Install File googlehuhuhuhuhuhuhu
Install-Folder %Aphuhuhuhu
Hosts www.aphuhuhuhuhuhuhuhuhuhuhu
Ports 1604,4huhuhuhuhuhuhuhuhuhuhu
Mutex DcRatMhuhuhuhuhuhuhu
Version 1huhuhuhu
Delay 1huhuhuhu
Group Dehuhuhuhu
We extracted this malware's full configuration (C2, credentials, campaign IDs…).
Unlock with Essential
Name Value
Module Name
apsom_printer.exe
Full Name
apsom_printer.exe
EntryPoint
System.Void Client.Program::Main()
Scope Name
apsom_printer.exe
Scope Type
ModuleDef
Kind
Windows
Runtime Version
v4.0.30319
Tables Header Version
512
WinMD Version
<null>
Assembly Name
apsom_printer
Assembly Version
1.0.7.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.0
Total Strings
157
Main Method
System.Void Client.Program::Main()
Main IL Instruction Count
77
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: leave IL_0052
call System.Void Client.Helper.Anti_Analysis::RunAntiAnalysis()
leave IL_0052: call System.Void Client.Helper.A::B()
pop <null>
leave IL_0052: call System.Void Client.Helper.A::B()
call System.Void Client.Helper.A::B()
call System.Boolean Client.Helper.MutexControl::CreateMutex()
brtrue IL_0067: leave IL_0072
ldc.i4.0 <null>
call System.Void System.Environment::Exit(System.Int32)
leave IL_0072: nop
pop <null>
leave IL_0072: nop
nop <null>
ldsfld System.String Client.Settings::Anti_Process
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0087: leave IL_0092
call System.Void Client.Helper.AntiProcess::StartBlock()
leave IL_0092: nop
pop <null>
leave IL_0092: nop
nop <null>
ldsfld System.String Client.Settings::BS_OD
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_00B1: leave IL_00BC
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_00B1: leave IL_00BC
call System.Void Client.Helper.ProcessCritical::Set()
leave IL_00BC: nop
pop <null>
leave IL_00BC: nop
nop <null>
ldsfld System.String Client.Settings::In_stall
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_00D1: leave IL_00DC
call System.Void Client.Install.NormalStartup::Install()
leave IL_00DC: call System.Void Client.Helper.Methods::PreventSleep()
pop <null>
leave IL_00DC: call System.Void Client.Helper.Methods::PreventSleep()
call System.Void Client.Helper.Methods::PreventSleep()
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_00F0: leave IL_00FB
call System.Void Client.Helper.Methods::ClearSetting()
leave IL_00FB: nop
pop <null>
leave IL_00FB: nop
nop <null>
call System.Boolean Client.Connection.ClientSocket::get_IsConnected()
brtrue IL_0110: leave IL_011B
call System.Void Client.Connection.ClientSocket::Reconnect()
call System.Void Client.Connection.ClientSocket::InitializeClient()
leave IL_011B: ldc.i4 5000
pop <null>
leave IL_011B: ldc.i4 5000
ldc.i4 5000
call System.Void System.Threading.Thread::Sleep(System.Int32)
br.s IL_00FB: nop
Module Name
apsom_printer.exe
Full Name
apsom_printer.exe
EntryPoint
System.Void Client.Program::Main()
Scope Name
apsom_printer.exe
Scope Type
ModuleDef
Kind
Windows
Runtime Version
v4.0.30319
Tables Header Version
512
WinMD Version
<null>
Assembly Name
apsom_printer
Assembly Version
1.0.7.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.0
Total Strings
157
Main Method
System.Void Client.Program::Main()
Main IL Instruction Count
77
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: leave IL_0052
call System.Void Client.Helper.Anti_Analysis::RunAntiAnalysis()
leave IL_0052: call System.Void Client.Helper.A::B()
pop <null>
leave IL_0052: call System.Void Client.Helper.A::B()
call System.Void Client.Helper.A::B()
call System.Boolean Client.Helper.MutexControl::CreateMutex()
brtrue IL_0067: leave IL_0072
ldc.i4.0 <null>
call System.Void System.Environment::Exit(System.Int32)
leave IL_0072: nop
pop <null>
leave IL_0072: nop
nop <null>
ldsfld System.String Client.Settings::Anti_Process
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0087: leave IL_0092
call System.Void Client.Helper.AntiProcess::StartBlock()
leave IL_0092: nop
pop <null>
leave IL_0092: nop
nop <null>
ldsfld System.String Client.Settings::BS_OD
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_00B1: leave IL_00BC
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_00B1: leave IL_00BC
call System.Void Client.Helper.ProcessCritical::Set()
leave IL_00BC: nop
pop <null>
leave IL_00BC: nop
nop <null>
ldsfld System.String Client.Settings::In_stall
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_00D1: leave IL_00DC
call System.Void Client.Install.NormalStartup::Install()
leave IL_00DC: call System.Void Client.Helper.Methods::PreventSleep()
pop <null>
leave IL_00DC: call System.Void Client.Helper.Methods::PreventSleep()
call System.Void Client.Helper.Methods::PreventSleep()
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_00F0: leave IL_00FB
call System.Void Client.Helper.Methods::ClearSetting()
leave IL_00FB: nop
pop <null>
leave IL_00FB: nop
nop <null>
call System.Boolean Client.Connection.ClientSocket::get_IsConnected()
brtrue IL_0110: leave IL_011B
call System.Void Client.Connection.ClientSocket::Reconnect()
call System.Void Client.Connection.ClientSocket::InitializeClient()
leave IL_011B: ldc.i4 5000
pop <null>
leave IL_011B: ldc.i4 5000
ldc.i4 5000
call System.Void System.Threading.Thread::Sleep(System.Int32)
br.s IL_00FB: nop
Key (AES_256) MUTEXmalicious
Umlhb0huhuhuhuhuhuhuhuhuhuhu
CnC CNCmalicious
www.huhuhuhuhuhuhu
CnC CNCmalicious
malwahuhuhuhuhuhuhu
Ports PORTmalicious
1huhuhuhu
Ports PORTmalicious
4huhuhuhu
Ports PORTmalicious
8huhuhuhu
Ports PORTmalicious
8huhuhuhu
Ports PORTmalicious
8huhuhuhu
Ports PORTmalicious
9huhuhuhu
Mutex MUTEXmalicious
DcRatMhuhuhuhuhuhuhu
Full artefact values (URLs, paths, registry keys, scripts…) are available with Essential.
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