2024-09-29_4b5dc1fbea1bf58db77d697ed454e266_chir_cobalt-strike_ryuk

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General

Target

2024-09-29_4b5dc1fbea1bf58db77d697ed454e266_chir_cobalt-strike_ryuk
Size

1.7MB
MD5

4b5dc1fbea1bf58db77d697ed454e266
SHA1

148ef062b1056717c1925ed24e29345339a473e9
SHA256

6e5f52db396d51e80b05db36f66b2c21fb9417f6763680fc5b4dc12898b8f613
SHA512

ce9c77e1e24a078b1ce302f1d67ebd1bbd7d9c5477cb22357d3b94f989cab6e5c73203f8329cecbaa9acd34f76e111c8089ef4d1f1b24fe08f2bc083815b0edc
SSDEEP

24576:zncpb/ZJiMcXh9XglMv3qaywmcHDMEtOknAvFUdPExtRUo650zwA9:zncpbhJI9QlMv3jnmclJAvUPExtaqzv

Score

1^/10

Malware Config

Signatures

Files

2024-09-29_4b5dc1fbea1bf58db77d697ed454e266_chir_cobalt-strike_ryuk
.exe windows:5 windows x64 arch:x64

5fce2a32b4f91649c0218ad74dc15989

Code Sign

33:00:00:03:3e:63:3a:86:bf:41:73:d7:e0:00:00:00:00:03:3e
Certificate

Issuer

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

16/02/2023, 20:10

Not After

31/01/2024, 20:10

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:0e:90:d2:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

08/07/2011, 20:59

Not After

08/07/2026, 21:09

Subject

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

3d:66:72:e2:d2:b6:3a:eb:cf:27:86:a7:38:de:21:73:52:21:ab:e5:09:ba:fd:54:b7:1f:d1:66:47:b9:f5:74
Signer

Actual PE Digest

3d:66:72:e2:d2:b6:3a:eb:cf:27:86:a7:38:de:21:73:52:21:ab:e5:09:ba:fd:54:b7:1f:d1:66:47:b9:f5:74

Digest Algorithm

sha256

PE Digest Matches

false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

D:\a\_work\e\src\out\Release_x64\elevation_service.exe.pdb

Imports

oleaut32

SysAllocStringByteLen
SysStringByteLen

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
AssignProcessToJobObject
CloseHandle
CompareStringW
CreateDirectoryW
CreateEventW
CreateFileA
CreateFileMappingW
CreateFileW
CreateProcessW
CreateThread
DecodePointer
DeleteCriticalSection
DeleteFileW
DeleteProcThreadAttributeList
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameExW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileAttributesW
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetLogicalProcessorInformation
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetProcessId
GetProductInfo
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadId
GetThreadPriority
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetVersionExW
GetWindowsDirectoryW
HeapAlloc
HeapDestroy
HeapFree
HeapReAlloc
HeapSetInformation
HeapSize
InitOnceExecuteOnce
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeProcThreadAttributeList
InitializeSListHead
InitializeSRWLock
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
K32GetModuleInformation
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LocalFree
MapViewOfFile
MoveFileExW
MultiByteToWideChar
OpenProcess
OutputDebugStringA
OutputDebugStringW
QueryFullProcessImageNameA
QueryFullProcessImageNameW
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ReleaseSRWLockShared
RemoveDirectoryW
ResetEvent
ResumeThread
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetCurrentDirectoryW
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFilePointer
SetFilePointerEx
SetFileTime
SetHandleInformation
SetLastError
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SystemTimeToFileTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
TzSpecificLocalTimeToSystemTime
UnhandledExceptionFilter
UnmapViewOfFile
UnregisterWaitEx
UpdateProcThreadAttribute
VerSetConditionMask
VerifyVersionInfoW
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpiW
lstrlenA

crypt32

CryptProtectData
CryptUnprotectData

rpcrt4

I_RpcOpenClientProcess

Exports

Exports

GetHandleVerifier

Sections

.text
Size: 1.3MB - Virtual size: 1.3MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 216KB - Virtual size: 215KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 63KB - Virtual size: 110KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 48KB - Virtual size: 48KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 40B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 10KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 108B

.tls
Size: 512B - Virtual size: 385B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.voltbl
Size: 512B - Virtual size: 70B

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

M`
Size: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

5fce2a32b4f91649c0218ad74dc15989

Code Sign

33:00:00:03:3e:63:3a:86:bf:41:73:d7:e0:00:00:00:00:03:3eCertificate

Extended Key Usages

61:0e:90:d2:00:00:00:00:00:03Certificate

Key Usages

3d:66:72:e2:d2:b6:3a:eb:cf:27:86:a7:38:de:21:73:52:21:ab:e5:09:ba:fd:54:b7:1f:d1:66:47:b9:f5:74Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

oleaut32

kernel32

crypt32

rpcrt4

Exports

Exports

Sections

.text Size: 1.3MB - Virtual size: 1.3MB

.rdata Size: 216KB - Virtual size: 215KB

.data Size: 63KB - Virtual size: 110KB

.pdata Size: 48KB - Virtual size: 48KB

.00cfg Size: 512B - Virtual size: 40B

.gxfg Size: 10KB - Virtual size: 10KB

.retplne Size: 512B - Virtual size: 108B

.tls Size: 512B - Virtual size: 385B

.voltbl Size: 512B - Virtual size: 70B

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 7KB - Virtual size: 6KB

M` Size: 7KB - Virtual size: 6KB

33:00:00:03:3e:63:3a:86:bf:41:73:d7:e0:00:00:00:00:03:3e
Certificate

61:0e:90:d2:00:00:00:00:00:03
Certificate

3d:66:72:e2:d2:b6:3a:eb:cf:27:86:a7:38:de:21:73:52:21:ab:e5:09:ba:fd:54:b7:1f:d1:66:47:b9:f5:74
Signer

.text
Size: 1.3MB - Virtual size: 1.3MB

.rdata
Size: 216KB - Virtual size: 215KB

.data
Size: 63KB - Virtual size: 110KB

.pdata
Size: 48KB - Virtual size: 48KB

.00cfg
Size: 512B - Virtual size: 40B

.gxfg
Size: 10KB - Virtual size: 10KB

.retplne
Size: 512B - Virtual size: 108B

.tls
Size: 512B - Virtual size: 385B

.voltbl
Size: 512B - Virtual size: 70B

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 7KB - Virtual size: 6KB

M`
Size: 7KB - Virtual size: 6KB