Malicious
Malicious

17b77caeec4ead3957de2694ede4cf7a

PE Executable
MD5: 17b77caeec4ead3957de2694ede4cf7a
Size: 894.46 KB
application/x-dosexec
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Get an AI-generated breakdown of this malware's behaviour, IOCs and recommendations.

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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.
Unlock with Essential
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
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
CnC CNCmalicious
Chainhuhuhuhuhuhuhu
17b77caeec4ead3957de2694ede4cf7a
Port PORTmalicious
Chainhuhuhuhuhuhuhu
17b77caeec4ead3957de2694ede4cf7a
Full artefact values (URLs, paths, registry keys, scripts…) are available with Essential.
Unlock with Essential
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