Malicious
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PE Executable
MD5: ffe21313640de716dbe7ca9788432570
Size: 46.59 KB
application/x-dosexec
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File
Size
46.59 KB · 46,592 B
First seen
2025-12-25 15:00 · 10 months ago
Last seen
2025-12-25 15:00 · 10 months ago
Last analysis
2026-01-04 23:26 · 9 months ago
Hashes
MD5 ffe21313640de716dbe7ca9788432570 Sha1 8a9d5870d7b7467b4f982e02647305edf209d706 Sha256 5767cc983ebb225d2ecce27ec05e96ec6cdd40eb58a44a944b44f1d0eb8125fb Sha384 be922c05f8ad46976f914bf026ad8dace74964e8902f7dac84a5ba3a4c4fa9f3cca7095887478b410e8526752bcf7723 Sha512 0ff656d0bb360b76d98523114ae7d4ab59a0c2c5583d51e34c39b581af7ecd7fb350910cb77c14e5367a7fa2dbade252b1570d1425d93e71f13bc3c7ec9a3a53 SSDeep 768:wuoFglTPH4jWWUQvh0smo2qBQKjPGaG6PIyzjbFgX3iOV/1Ewdf6m6BDZJV:wuoSlTPYj2jKTkDy3bCXSOV2mkdJV TLSH E8232A003FE9822BF2BE4F789DF25245467AF5633603E54E1CC4519B5613BC68A42AFE
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
EXEffe21313640de716dbe7ca9788432570njRat
Structure
Config. Field Value
Key (AES_256) SUhSZFhuhuhuhuhuhuhuhuhuhuhu
Pastebin -huhuhuhu
Certificate MIIE5Dhuhuhuhuhuhuhuhuhuhuhu
ServerSignature Ryli7dhuhuhuhuhuhuhuhuhuhuhu
Install thuhuhuhu
BDOS fhuhuhuhu
Anti-VM fhuhuhuhu
Install File obshuhuhuhu
Install-Folder %Thuhuhuhu
Hosts aa888.huhuhuhuhuhuhuhuhuhuhu
Ports 80,huhuhuhu
Mutex VMVlhuhuhuhu
Version 0huhuhuhu
Delay 3huhuhuhu
Group Dehuhuhuhu
We extracted this malware's full configuration (C2, credentials, campaign IDs…).
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Name Value
Module Name
AsyncClient.exe
Full Name
AsyncClient.exe
EntryPoint
System.Void Client.Program::Main()
Scope Name
AsyncClient.exe
Scope Type
ModuleDef
Kind
Windows
Runtime Version
v4.0.30319
Tables Header Version
512
WinMD Version
<null>
Assembly Name
AsyncClient
Assembly Version
1.0.0.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.0,Profile=Client
Total Strings
120
Main Method
System.Void Client.Program::Main()
Main IL Instruction Count
51
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::Delay
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>
call System.Boolean Client.Helper.MutexControl::CreateMutex()
brtrue IL_0043: ldsfld System.String Client.Settings::Anti
ldc.i4.0 <null>
call System.Void System.Environment::Exit(System.Int32)
ldsfld System.String Client.Settings::Anti
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0057: ldsfld System.String Client.Settings::Install
call System.Void Client.Helper.Anti_Analysis::RunAntiAnalysis()
ldsfld System.String Client.Settings::Install
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_006B: ldsfld System.String Client.Settings::BDOS
call System.Void Client.Install.NormalStartup::Install()
ldsfld System.String Client.Settings::BDOS
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0089: call System.Void Client.Helper.Methods::PreventSleep()
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_0089: call System.Void Client.Helper.Methods::PreventSleep()
call System.Void Client.Helper.ProcessCritical::Set()
call System.Void Client.Helper.Methods::PreventSleep()
leave IL_0099: nop
pop <null>
leave IL_0099: nop
nop <null>
call System.Boolean Client.Connection.ClientSocket::get_IsConnected()
brtrue IL_00AE: leave IL_00B9
call System.Void Client.Connection.ClientSocket::Reconnect()
call System.Void Client.Connection.ClientSocket::InitializeClient()
leave IL_00B9: ldc.i4 5000
pop <null>
leave IL_00B9: ldc.i4 5000
ldc.i4 5000
call System.Void System.Threading.Thread::Sleep(System.Int32)
br.s IL_0099: nop
Module Name
AsyncClient.exe
Full Name
AsyncClient.exe
EntryPoint
System.Void Client.Program::Main()
Scope Name
AsyncClient.exe
Scope Type
ModuleDef
Kind
Windows
Runtime Version
v4.0.30319
Tables Header Version
512
WinMD Version
<null>
Assembly Name
AsyncClient
Assembly Version
1.0.0.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.0,Profile=Client
Total Strings
120
Main Method
System.Void Client.Program::Main()
Main IL Instruction Count
51
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::Delay
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>
call System.Boolean Client.Helper.MutexControl::CreateMutex()
brtrue IL_0043: ldsfld System.String Client.Settings::Anti
ldc.i4.0 <null>
call System.Void System.Environment::Exit(System.Int32)
ldsfld System.String Client.Settings::Anti
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0057: ldsfld System.String Client.Settings::Install
call System.Void Client.Helper.Anti_Analysis::RunAntiAnalysis()
ldsfld System.String Client.Settings::Install
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_006B: ldsfld System.String Client.Settings::BDOS
call System.Void Client.Install.NormalStartup::Install()
ldsfld System.String Client.Settings::BDOS
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0089: call System.Void Client.Helper.Methods::PreventSleep()
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_0089: call System.Void Client.Helper.Methods::PreventSleep()
call System.Void Client.Helper.ProcessCritical::Set()
call System.Void Client.Helper.Methods::PreventSleep()
leave IL_0099: nop
pop <null>
leave IL_0099: nop
nop <null>
call System.Boolean Client.Connection.ClientSocket::get_IsConnected()
brtrue IL_00AE: leave IL_00B9
call System.Void Client.Connection.ClientSocket::Reconnect()
call System.Void Client.Connection.ClientSocket::InitializeClient()
leave IL_00B9: ldc.i4 5000
pop <null>
leave IL_00B9: ldc.i4 5000
ldc.i4 5000
call System.Void System.Threading.Thread::Sleep(System.Int32)
br.s IL_0099: nop
Key (AES_256) MUTEXmalicious
SUhSZFhuhuhuhuhuhuhuhuhuhuhu
CnC CNCmalicious
aa88huhuhuhu
CnC CNCmalicious
www.ahuhuhuhuhuhuhu
Ports PORTmalicious
8huhuhuhu
Ports PORTmalicious
4huhuhuhu
Ports PORTmalicious
8huhuhuhu
Mutex MUTEXmalicious
VMVlhuhuhuhu
Full artefact values (URLs, paths, registry keys, scripts…) are available with Essential.
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