2024-05-15_b5aa4e79129271f88cd0fa1ecd5d575c_chir_ryuk

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General

Target

2024-05-15_b5aa4e79129271f88cd0fa1ecd5d575c_chir_ryuk
Size

12.1MB
MD5

b5aa4e79129271f88cd0fa1ecd5d575c
SHA1

26a31489fb69b16ec8038ce8c96fea946b05739c
SHA256

c5c59d9df1ec16d710b50c10a47f594645106f106e7f0c5cb735c03e4a8b8ce2
SHA512

659ed79c086ba5a0a02bcee8fe6466aa7eb4f85e13e2374d9f669eb96f714b6ba0f3ac113af393e691c9d62e6bca3d70372719458bbf59bfb08055c5efad58f1
SSDEEP

196608:7LI8SiCGurDz5o/VP7TyT8xw3y0Kl2OCxnS:7078urDz5o/xT1wi0U2b

Score

10^/10

Malware Config

Signatures

Detects executables packed with Dotfuscator 1 IoCs

resource	yara_rule
sample	INDICATOR_EXE_Packed_Dotfuscator

Detects executables packed with SmartAssembly 1 IoCs

resource	yara_rule
sample	INDICATOR_EXE_Packed_SmartAssembly

Detects executables packed with Yano Obfuscator 1 IoCs

resource	yara_rule
sample	INDICATOR_EXE_Packed_Yano

Files

2024-05-15_b5aa4e79129271f88cd0fa1ecd5d575c_chir_ryuk
.exe windows:5 windows x64 arch:x64

15b0d359b0d004363a1c9a125be29113

Code Sign

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

29/04/2021, 00:00

Not After

28/04/2036, 23:59

Subject

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0e:44:18:e2:de:de:36:dd:29:74:c3:44:3a:fb:5c:e5
Certificate

Issuer

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Not Before

02/07/2021, 00:00

Not After

10/07/2024, 23:59

Subject

CN=Google LLC,O=Google LLC,L=Mountain View,ST=California,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

21/09/2022, 00:00

Not After

21/11/2033, 23:59

Subject

CN=DigiCert Timestamp 2022 - 2,O=DigiCert,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

23/03/2022, 00:00

Not After

22/03/2037, 23:59

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/08/2022, 00:00

Not After

09/11/2031, 23:59

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

4a:fb:64:55:89:d7:97:39:20:06:f6:96:a7:3e:7b:8b:81:01:26:e1:1f:ba:b8:8d:53:cc:01:25:e5:dd:5b:d8
Signer

Actual PE Digest

4a:fb:64:55:89:d7:97:39:20:06:f6:96:a7:3e:7b:8b:81:01:26:e1:1f:ba:b8:8d:53:cc:01:25:e5:dd:5b:d8

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

C:\b\s\w\ir\cache\builder\src\out\Release_x64\software_reporter_tool.exe.pdb

Imports

advapi32

DuplicateTokenEx
EventRegister
EventSetInformation
EventUnregister
EventWrite
GetAce
GetLengthSid
GetSecurityDescriptorControl
GetSecurityDescriptorDacl
GetSecurityDescriptorGroup
GetSecurityDescriptorOwner
GetSecurityDescriptorSacl
GetSecurityInfo
IsValidAcl
IsValidSecurityDescriptor
IsValidSid
OpenProcessToken
RegCloseKey
RegDisablePredefinedCache
RegOpenKeyExW
RegQueryValueExW
RevertToSelf
SetSecurityInfo
SetTokenInformation
SystemFunction036

user32

UnregisterClassW

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
CloseHandle
CompareStringW
CreateEventW
CreateFileW
CreateThread
DecodePointer
DeleteCriticalSection
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesEx
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FindNextFileW
FindResourceW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentProcessorNumber
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetEnvironmentStringsW
GetFileSizeEx
GetFileType
GetLastError
GetLocalTime
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHandleCount
GetProcessHeap
GetProcessHeaps
GetProductInfo
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemInfo
GetSystemTimeAsFileTime
GetThreadId
GetThreadPriority
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetUserDefaultLangID
GetUserDefaultLocaleName
GetVersionExW
HeapAlloc
HeapDestroy
HeapFree
HeapReAlloc
HeapSetInformation
HeapSize
InitOnceExecuteOnce
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadResource
LocalFree
LockResource
MultiByteToWideChar
OutputDebugStringA
OutputDebugStringW
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ReleaseSRWLockShared
ResetEvent
SetDefaultDllDirectories
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetHandleInformation
SetLastError
SetProcessMitigationPolicy
SetStdHandle
SetThreadAffinityMask
SetThreadPriority
SetUnhandledExceptionFilter
SizeofResource
Sleep
SleepConditionVariableSRW
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
UnhandledExceptionFilter
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrlenA

winmm

timeGetTime

ntdll

RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind

Exports

Exports

GetHandleVerifier
IsSandboxedProcess

Sections

.text
Size: 701KB - Virtual size: 701KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 142KB - Virtual size: 142KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 62KB - Virtual size: 104KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 27KB - Virtual size: 27KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 48B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 10KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 156B

.tls
Size: 512B - Virtual size: 393B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 11.2MB - Virtual size: 11.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

�?�
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

15b0d359b0d004363a1c9a125be29113

Code Sign

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9Certificate

Extended Key Usages

Key Usages

0e:44:18:e2:de:de:36:dd:29:74:c3:44:3a:fb:5c:e5Certificate

Extended Key Usages

Key Usages

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5aCertificate

Extended Key Usages

Key Usages

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate

Extended Key Usages

Key Usages

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5aCertificate

Key Usages

4a:fb:64:55:89:d7:97:39:20:06:f6:96:a7:3e:7b:8b:81:01:26:e1:1f:ba:b8:8d:53:cc:01:25:e5:dd:5b:d8Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

user32

kernel32

winmm

ntdll

Exports

Exports

Sections

.text Size: 701KB - Virtual size: 701KB

.rdata Size: 142KB - Virtual size: 142KB

.data Size: 62KB - Virtual size: 104KB

.pdata Size: 27KB - Virtual size: 27KB

.00cfg Size: 512B - Virtual size: 48B

.gxfg Size: 10KB - Virtual size: 9KB

.retplne Size: 512B - Virtual size: 156B

.tls Size: 512B - Virtual size: 393B

_RDATA Size: 512B - Virtual size: 348B

.rsrc Size: 11.2MB - Virtual size: 11.2MB

�?� Size: 5KB - Virtual size: 4KB

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

0e:44:18:e2:de:de:36:dd:29:74:c3:44:3a:fb:5c:e5
Certificate

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

4a:fb:64:55:89:d7:97:39:20:06:f6:96:a7:3e:7b:8b:81:01:26:e1:1f:ba:b8:8d:53:cc:01:25:e5:dd:5b:d8
Signer

.text
Size: 701KB - Virtual size: 701KB

.rdata
Size: 142KB - Virtual size: 142KB

.data
Size: 62KB - Virtual size: 104KB

.pdata
Size: 27KB - Virtual size: 27KB

.00cfg
Size: 512B - Virtual size: 48B

.gxfg
Size: 10KB - Virtual size: 9KB

.retplne
Size: 512B - Virtual size: 156B

.tls
Size: 512B - Virtual size: 393B

_RDATA
Size: 512B - Virtual size: 348B

.rsrc
Size: 11.2MB - Virtual size: 11.2MB

�?�
Size: 5KB - Virtual size: 4KB