2024-02-23_3f3a5465ec8d9d91ccd172cf95b75e5b_ryuk

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General

Target

2024-02-23_3f3a5465ec8d9d91ccd172cf95b75e5b_ryuk
Size

570KB
MD5

3f3a5465ec8d9d91ccd172cf95b75e5b
SHA1

44c442c96ef38896ee12263421478be2503ba560
SHA256

5fe2814805e3f8671479d54a1ea1ac1d744055cba0f41950515cf3f6d02cb346
SHA512

0640049eca35f8eba5932360e9da85f9fc34f7cea221e4be97dbd129cf22427e6c7751901d85df33155fe9d9961ea3a235fdaa63decc41578c422c3b01e97642
SSDEEP

6144:RRB3imMNnGD1SH/xTHT/eRkzVsfjfaGry1bZ72ReyTohBQB3aGdxB:vB3iPnaSHJjT/eRkzV4Nmz2lo8B7

Score

1^/10

Malware Config

Signatures

Files

2024-02-23_3f3a5465ec8d9d91ccd172cf95b75e5b_ryuk
.exe windows:5 windows x64 arch:x64

0e50f188f815ea40a0a16c265d1c50f4

Code Sign

19:1a:32:cb:75:9c:97:b8:cf:ac:11:8d:d5:12:7f:49
Certificate

Issuer

CN=VeriSign Class 3 Public Primary Certification Authority - G5,OU=VeriSign Trust Network+OU=(c) 2006 VeriSign\, Inc. - For authorized use only,O=VeriSign\, Inc.,C=US

Not Before

04/03/2014, 00:00

Not After

03/03/2024, 23:59

Subject

CN=Symantec Class 3 Extended Validation Code Signing CA - G2,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

28:cf:d4:65:57:b4:0e:ab:2f:60:ef:b3:7f:0e:6f:cb
Certificate

Issuer

CN=Symantec Class 3 Extended Validation Code Signing CA - G2,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Not Before

17/01/2020, 00:00

Not After

16/01/2023, 23:59

Subject

SERIALNUMBER=913100006317722856,CN=Shanghai Oriental Webcasting Co. Ltd.,OU=技术管理中心,O=Shanghai Oriental Webcasting Co. Ltd.,ST=Shanghai,C=CN,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.2=#13085368616e67686169,1.3.6.1.4.1.311.60.2.1.3=#1302434e

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:dd
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/01/2021, 00:00

Not After

06/01/2031, 00:00

Subject

CN=DigiCert Timestamp 2021,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

Issuer

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

Not Before

07/01/2016, 12:00

Not After

07/01/2031, 12:00

Subject

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

66:45:5f:79:49:90:30:80:f0:e7:3e:61:8b:8c:4b:03:e9:f1:79:c9:da:e1:a8:1a:9e:c1:05:83:e1:12:f0:e9
Signer

Actual PE Digest

66:45:5f:79:49:90:30:80:f0:e7:3e:61:8b:8c:4b:03:e9:f1:79:c9:da:e1:a8:1a:9e:c1:05:83:e1:12:f0:e9

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

version

GetFileVersionInfoSizeW
GetFileVersionInfoW
VerQueryValueW

shlwapi

PathAppendW
PathFileExistsW

imm32

ImmInstallIMEW
ImmSetHotKey
ImmGetIMEFileNameW

kernel32

OpenProcess
GetExitCodeProcess
GetLastError
WaitForSingleObject
FindClose
GetTickCount
lstrcmpiW
GetModuleHandleW
DeleteFileW
FindNextFileW
CopyFileW
MoveFileExW
MultiByteToWideChar
WideCharToMultiByte
CreateToolhelp32Snapshot
Process32FirstW
Process32NextW
LockResource
LoadResource
SizeofResource
WriteFile
FindResourceW
GetCommandLineW
GetPrivateProfileStringW
TerminateProcess
GetSystemDirectoryW
DecodePointer
HeapDestroy
HeapAlloc
HeapReAlloc
HeapFree
LocalFree
GetProcessHeap
RaiseException
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
FindResourceExW
GetSystemWow64DirectoryW
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
GetFileType
GetACP
GetStdHandle
GetModuleHandleExW
ExitProcess
FindFirstFileExW
LoadLibraryExW
RtlUnwindEx
RtlPcToFileHeader
OutputDebugStringW
IsValidCodePage
InitializeSListHead
QueryPerformanceCounter
GetStartupInfoW
IsDebuggerPresent
WaitForSingleObjectEx
ResetEvent
SetEvent
IsProcessorFeaturePresent
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
GetCPInfo
GetStringTypeW
LCMapStringW
CompareStringW
GetSystemTimeAsFileTime
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
LocalAlloc
GlobalFree
GlobalAlloc
ReadFile
GetFileSize
CreateFileW
CreateDirectoryW
WritePrivateProfileStringW
GetPrivateProfileIntW
CreateProcessW
GetModuleFileNameW
LoadLibraryW
GetLocalTime
CloseHandle
SetErrorMode
GetCurrentThreadId
SetUnhandledExceptionFilter
GetCurrentProcessId
GetCurrentProcess
GetProcAddress
FreeLibrary
GetTimeZoneInformation
GetConsoleCP
GetConsoleMode
SetFilePointerEx
WriteConsoleW
ReadConsoleW
CreateEventW
SetLastError
EncodePointer
GetOEMCP
GetCommandLineA
GetEnvironmentStringsW
FreeEnvironmentStringsW
FlushFileBuffers
SetStdHandle
HeapSize
SetEndOfFile
SetEnvironmentVariableA

user32

GetKeyboardLayoutList
LoadKeyboardLayoutW
UnloadKeyboardLayout
MessageBoxW

advapi32

RegSetValueExW
RegEnumValueW
RegCreateKeyW
RegQueryInfoKeyW
RegEnumKeyExW
RegDeleteKeyW
RegDeleteValueW
SetSecurityDescriptorDacl
OpenProcessToken
GetTokenInformation
ImpersonateLoggedOnUser
RevertToSelf
RegQueryValueExW
RegOpenKeyExW
RegOpenKeyW
RegEnumKeyW
RegCreateKeyExW
RegCloseKey
DuplicateTokenEx
LookupAccountSidW
InitializeSecurityDescriptor

shell32

SHGetFolderPathW
SHGetSpecialFolderPathW

Sections

.text
Size: 174KB - Virtual size: 174KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 86KB - Virtual size: 86KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 15KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 9KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 276B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 284KB - Virtual size: 284KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

0e50f188f815ea40a0a16c265d1c50f4

Code Sign

19:1a:32:cb:75:9c:97:b8:cf:ac:11:8d:d5:12:7f:49Certificate

Extended Key Usages

Key Usages

28:cf:d4:65:57:b4:0e:ab:2f:60:ef:b3:7f:0e:6f:cbCertificate

Extended Key Usages

Key Usages

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:ddCertificate

Extended Key Usages

Key Usages

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15Certificate

Extended Key Usages

Key Usages

66:45:5f:79:49:90:30:80:f0:e7:3e:61:8b:8c:4b:03:e9:f1:79:c9:da:e1:a8:1a:9e:c1:05:83:e1:12:f0:e9Signer

Headers

DLL Characteristics

File Characteristics

Imports

version

shlwapi

imm32

kernel32

user32

advapi32

shell32

Sections

.text Size: 174KB - Virtual size: 174KB

.rdata Size: 86KB - Virtual size: 86KB

.data Size: 4KB - Virtual size: 15KB

.pdata Size: 9KB - Virtual size: 9KB

.gfids Size: 512B - Virtual size: 276B

.tls Size: 512B - Virtual size: 9B

.rsrc Size: 284KB - Virtual size: 284KB

.reloc Size: 3KB - Virtual size: 2KB

19:1a:32:cb:75:9c:97:b8:cf:ac:11:8d:d5:12:7f:49
Certificate

28:cf:d4:65:57:b4:0e:ab:2f:60:ef:b3:7f:0e:6f:cb
Certificate

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:dd
Certificate

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

66:45:5f:79:49:90:30:80:f0:e7:3e:61:8b:8c:4b:03:e9:f1:79:c9:da:e1:a8:1a:9e:c1:05:83:e1:12:f0:e9
Signer

.text
Size: 174KB - Virtual size: 174KB

.rdata
Size: 86KB - Virtual size: 86KB

.data
Size: 4KB - Virtual size: 15KB

.pdata
Size: 9KB - Virtual size: 9KB

.gfids
Size: 512B - Virtual size: 276B

.tls
Size: 512B - Virtual size: 9B

.rsrc
Size: 284KB - Virtual size: 284KB

.reloc
Size: 3KB - Virtual size: 2KB