Malicious
Malicious

17b77caeec4ead3957de2694ede4cf7a

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PE Executable
MD5: 17b77caeec4ead3957de2694ede4cf7a
Size: 894.46 KB
application/x-dosexec
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Symbol Obfuscation Score Low
MD5 17b77caeec4ead3957de2694ede4cf7a
Sha1 68d30d876600af63187f9b04327e3c269fc0f329
Sha256 54cbfa811acd12ec93929ceac5b83759c15933ddf5163ee837e4cb1f3ea66cc5
Sha384 d636e477d2473e21c36489563bffc0197617128beda744f42a39a95611e3b2b81b73053b4cecdef1f207a46a8b99724d
Sha512 96246b8d1caf91aac66204ff2ccd196a544d4065b485c34e249534b7f165bf216c39e19081778b4c37e94aebb45ac9120e7d4c7a22c5a602066b83fda18a74cf
SSDeep 12288:fOv2uwdKCxC70XoZisqtrMzTtg+WLyDrQ9/7WxLwbHzi5X9ytK63Juf7eLr:fO2uwdW70P9MNWLuyWh0eZM+ar
TLSH A515C050BBF88607E1FF1BB5F47609884BB2F5129976D74F498864AD0FA37808E507A3
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
17b77caeec4ead3957de2694ede4cf7a
Malicious
.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
.Net Resources
FxResources.System.Numerics.Vectors.SR.resources
[Authenticode]_ae030d4d.p7b
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_VERSION
ID:0001
ID:0
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
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.
4 / 4
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
EncryptionKey 5huhuhuhu
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 Pulsar.Client.Program::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
2.3.2.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.8.1
Total Strings
1612
Main Method
System.Void Pulsar.Client.Program::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 Pulsar.Client.Program::SaveOriginalDesktop()
newobj System.Void Pulsar.Client.PulsarApplication::.ctor()
call System.Void System.Windows.Forms.Application::Run(System.Windows.Forms.Form)
ret <null>
Info
PE Detect: PeReader OK (file layout)
Info
PDB Path: ?
Module Name
Client.exe
Full Name
Client.exe
EntryPoint
System.Void Pulsar.Client.Program::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
2.3.2.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.8.1
Total Strings
1612
Main Method
System.Void Pulsar.Client.Program::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 Pulsar.Client.Program::SaveOriginalDesktop()
newobj System.Void Pulsar.Client.PulsarApplication::.ctor()
call System.Void System.Windows.Forms.Application::Run(System.Windows.Forms.Form)
ret <null>
CnC CNCmalicious
Chainhuhuhuhuhuhuhu
Port PORTmalicious
Chainhuhuhuhuhuhuhu
Full artefact values (URLs, paths, registry keys, scripts…) are available with Essential.
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