Malicious
Malicious

e4c8cb4b8a732e71ca04ba532de3df83

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PE Executable
MD5: e4c8cb4b8a732e71ca04ba532de3df83
Size: 908.29 KB
application/x-dosexec
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Symbol Obfuscation Score Medium
MD5 e4c8cb4b8a732e71ca04ba532de3df83
Sha1 13726609ae5418f1f3ef9dc904541326da005ce3
Sha256 a7abcd989fded351e7aa80eb9e0feef0db40f3e7aee79964ad2fe1f57d5cac3f
Sha384 971ef4dc28eb468d043c0fcf93c1cdb2595267f196188cc043d4e93754f87f207b9e714a4c8536752ca73026392ff389
Sha512 d6e4b2a80e9569ef2cc60a103f2943ad44133cfa4ac7bba5bd834a61a675a66212f0fee1259b9aaecae9415d89da391d95f7bafa142424cb00d56552929b7821
SSDeep 24576:crqmszxJzck+uGW/yFoBkkAV7gvIv7gJLX:crqmiTYjqqanGMvIvsJ
TLSH 7715D090B7F4860AE1FF0BB9E47644444B77F616AA77C74F098864AD1EA3380CE517A3
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
e4c8cb4b8a732e71ca04ba532de3df83
Malicious
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_ICON
ID:0001
ID:0
ID:0-preview.png
RT_GROUP_CURSOR4
ID:0001
ID:0
RT_VERSION
ID:0001
ID:0
RT_MANIFEST
ID:0001
ID:0
.Net Resources
Pulsar.Client.FrmRemoteChat.resources
costura.messagepack.dll.compressed
costura.messagepack.dll
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_VERSION
ID:0001
ID:0
costura.messagepack.annotations.dll.compressed
costura.messagepack.annotations.dll
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_VERSION
ID:0001
ID:0
costura.system.buffers.dll.compressed
costura.system.buffers.dll
[Authenticode]_8c38879e.p7b
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_VERSION
ID:0001
ID:0
.Net Resources
FxResources.System.Buffers.SR.resources
costura.system.collections.immutable.dll.compressed
costura.system.collections.immutable.dll
[Authenticode]_937eee08.p7b
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_VERSION
ID:0001
ID:0
.Net Resources
FxResources.System.Collections.Immutable.SR.resources
ILLink.Substitutions.xml
costura.system.memory.dll.compressed
costura.system.memory.dll
[Authenticode]_15ab3250.p7b
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_VERSION
ID:0001
ID:0
.Net Resources
FxResources.System.Memory.SR.resources
costura.system.numerics.vectors.dll.compressed
costura.system.numerics.vectors.dll
[Authenticode]_ae030d4d.p7b
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_VERSION
ID:0001
ID:0
.Net Resources
FxResources.System.Numerics.Vectors.SR.resources
costura.system.runtime.compilerservices.unsafe.dll.compressed
costura.system.runtime.compilerservices.unsafe.dll
[Authenticode]_e61c97b9.p7b
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_VERSION
ID:0001
ID:0
costura.system.threading.tasks.extensions.dll.compressed
costura.system.threading.tasks.extensions.dll
[Authenticode]_7121b905.p7b
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_VERSION
ID:0001
ID:0
costura.pulsar.common.dll.compressed
costura.pulsar.common.dll
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_VERSION
ID:0001
ID:0
costura.metadata
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>pe:dll>pe:rsrc>bin
Shape pe:exe>pe:dll>pe:rsrc>bin
malicious 4 nodes
Path pe:exe>pe:dll>bin
Shape pe:exe>pe:dll>bin
malicious 3 nodes
Config. Field Value
Conf. AES-Salt BF-EB-huhuhuhuhuhuhuhuhuhuhu
Conf. AES-Key
Version Objehuhuhuhu
Port Chainhuhuhuhuhuhuhu
Host Chainhuhuhuhuhuhuhu
ReconnectDelay Authhuhuhuhuhuhuhu
Key Chaihuhuhuhu
SubDirectory Keyhuhuhuhu
InstallName Ahuhuhuhu
Install Microshuhuhuhuhuhuhuhuhuhuhu
Startup 1huhuhuhu
Mutex 1huhuhuhu
StartupKey -10huhuhuhu
HideFile fnUoXOhuhuhuhuhuhuhuhuhuhuhu
EnableLogger uW1/Uthuhuhuhuhuhuhuhuhuhuhu
EncryptionKey 3huhuhuhu
We extracted this malware's full configuration (C2, credentials, campaign IDs…).
Unlock with Essential
Name Value
Module Name
Client.exe
Full Name
Client.exe
EntryPoint
System.Void rtbzvmkorwubvbrmieqvcajjeqmbe.tyeUVfoVj02::Main()
Scope Name
Client.exe
Scope Type
ModuleDef
Kind
Windows
Runtime Version
v4.0.30319
Tables Header Version
512
WinMD Version
<null>
Assembly Name
Client
Assembly Version
2.3.3.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.8.1
Info
PE Detect: PeReader OK (file layout)
Info
PDB Path: ?
Total Strings
1534
Main Method
System.Void rtbzvmkorwubvbrmieqvcajjeqmbe.tyeUVfoVj02::Main()
Main IL Instruction Count
11
Main IL 
ldc.i4 3072
call System.Void System.Net.ServicePointManager::set_SecurityProtocol(System.Net.SecurityProtocolType)
ldc.i4.2 <null>
call System.Void System.Windows.Forms.Application::SetUnhandledExceptionMode(System.Windows.Forms.UnhandledExceptionMode)
call System.Void System.Windows.Forms.Application::EnableVisualStyles()
ldc.i4.0 <null>
call System.Void System.Windows.Forms.Application::SetCompatibleTextRenderingDefault(System.Boolean)
call System.Void rtbzvmkorwubvbrmieqvcajjeqmbe.tyeUVfoVj02::h04diy1DZwL()
newobj System.Void rtbzvmkorwubvbrmieqvcajjeqmbe.hJFFUNWWPiwsrsBMHwU3ZT5lS07::.ctor()
call System.Void System.Windows.Forms.Application::Run(System.Windows.Forms.Form)
ret <null>
Module Name
Client.exe
Full Name
Client.exe
EntryPoint
System.Void rtbzvmkorwubvbrmieqvcajjeqmbe.tyeUVfoVj02::Main()
Scope Name
Client.exe
Scope Type
ModuleDef
Kind
Windows
Runtime Version
v4.0.30319
Tables Header Version
512
WinMD Version
<null>
Assembly Name
Client
Assembly Version
2.3.3.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.8.1
Total Strings
1534
Main Method
System.Void rtbzvmkorwubvbrmieqvcajjeqmbe.tyeUVfoVj02::Main()
Main IL Instruction Count
11
Main IL 
ldc.i4 3072
call System.Void System.Net.ServicePointManager::set_SecurityProtocol(System.Net.SecurityProtocolType)
ldc.i4.2 <null>
call System.Void System.Windows.Forms.Application::SetUnhandledExceptionMode(System.Windows.Forms.UnhandledExceptionMode)
call System.Void System.Windows.Forms.Application::EnableVisualStyles()
ldc.i4.0 <null>
call System.Void System.Windows.Forms.Application::SetCompatibleTextRenderingDefault(System.Boolean)
call System.Void rtbzvmkorwubvbrmieqvcajjeqmbe.tyeUVfoVj02::h04diy1DZwL()
newobj System.Void rtbzvmkorwubvbrmieqvcajjeqmbe.hJFFUNWWPiwsrsBMHwU3ZT5lS07::.ctor()
call System.Void System.Windows.Forms.Application::Run(System.Windows.Forms.Form)
ret <null>
CnC CNCmalicious
Chainhuhuhuhuhuhuhu
Port PORTmalicious
Chainhuhuhuhuhuhuhu
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