Static task
static1
Behavioral task
behavioral1
Sample
2024-02-23_9e50a0e8784db2051c354d5ba1dd2fd3_ryuk.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-02-23_9e50a0e8784db2051c354d5ba1dd2fd3_ryuk.exe
Resource
win10v2004-20240221-en
General
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Target
2024-02-23_9e50a0e8784db2051c354d5ba1dd2fd3_ryuk
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Size
139KB
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MD5
9e50a0e8784db2051c354d5ba1dd2fd3
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SHA1
ee1fec6f0d819e5cb101743e4fde5c6ac7ec1ee3
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SHA256
7e1ec0064092488615bd45ab686f524097fe0486986459a4dae1bee27218933f
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SHA512
eb705a5630332c2595bb538c957a1213ffc27824fd6bdb53fa5100918ff618ae57272906d2ecd6af84609823c3e204a44c2f37ac57c981e7b718121ed0a72b54
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SSDEEP
3072:nJR8tU1kkQQdmjg7+3qEGtB32fqiS+equKkLf+:n5KkQQAYREGt8f7OKYG
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-02-23_9e50a0e8784db2051c354d5ba1dd2fd3_ryuk
Files
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2024-02-23_9e50a0e8784db2051c354d5ba1dd2fd3_ryuk.exe windows:6 windows x64 arch:x64
72b1bf96f3976b95c65e0bfb15305a68
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
libtcod
?getInt@TCODRandom@@QEAAHHHH@Z
?lerp@TCODColor@@SA?AV1@AEBV1@0M@Z
?get@TCODNoise@@QEAAMPEAMW4TCOD_noise_type_t@@@Z
?getFps@TCODSystem@@SAHXZ
??0TCODHeightMap@@QEAA@HH@Z
??1TCODHeightMap@@UEAA@XZ
?clear@TCODHeightMap@@QEAAXXZ
?addFbm@TCODHeightMap@@QEAAXPEAVTCODNoise@@MMMMMMM@Z
?getInterpolatedValue@TCODHeightMap@@QEBAMMM@Z
?getFloat@TCODRandom@@QEAAMMMM@Z
??0TCODColor@@QEAA@XZ
??DTCODColor@@QEBA?AV0@AEBV0@@Z
??DTCODColor@@QEBA?AV0@M@Z
??HTCODColor@@QEBA?AV0@AEBV0@@Z
?white@TCODColor@@2V1@B
?root@TCODConsole@@2PEAV1@EA
?initRoot@TCODConsole@@SAXHHPEBD_NW4TCOD_renderer_t@@@Z
?isFullscreen@TCODConsole@@SA_NXZ
?setFullscreen@TCODConsole@@SAX_N@Z
?isWindowClosed@TCODConsole@@SA_NXZ
?renderCredits@TCODConsole@@SA_NHH_N@Z
?setDefaultForeground@TCODConsole@@QEAAXVTCODColor@@@Z
?setCharForeground@TCODConsole@@QEAAXHHAEBVTCODColor@@@Z
?setChar@TCODConsole@@QEAAXHHH@Z
?print@TCODConsole@@QEAAXHHPEBDZZ
?flush@TCODConsole@@SAXXZ
?checkForKeypress@TCODConsole@@SA?AUTCOD_key_t@@H@Z
??0TCODNoise@@QEAA@HW4TCOD_noise_type_t@@@Z
??1TCODNoise@@UEAA@XZ
?getFbm@TCODNoise@@QEAAMPEAMMW4TCOD_noise_type_t@@@Z
?showCursor@TCODMouse@@SAX_N@Z
?getStatus@TCODMouse@@SA?AUTCOD_mouse_t@@XZ
??D@YA?AVTCODColor@@MAEBV0@@Z
?setFps@TCODSystem@@SAXH@Z
?getLastFrameLength@TCODSystem@@SAMXZ
?saveScreenshot@TCODSystem@@SAXPEBD@Z
?genMap@TCODColor@@SAXPEAV1@HPEBV1@PEBH@Z
??0TCODImage@@QEAA@HH@Z
?getPixel@TCODImage@@QEBA?AVTCODColor@@HH@Z
?putPixel@TCODImage@@QEAAXHHVTCODColor@@@Z
?blit2x@TCODImage@@QEBAXPEAVTCODConsole@@HHHHHH@Z
??1TCODImage@@UEAA@XZ
?getInstance@TCODRandom@@SAPEAV1@XZ
?darkBlue@TCODColor@@2V1@B
kernel32
GetSystemTimeAsFileTime
WriteConsoleW
FlushFileBuffers
SetFilePointerEx
GetConsoleMode
GetConsoleCP
HeapReAlloc
HeapSize
GetStringTypeW
SetStdHandle
GetProcessHeap
LCMapStringW
CompareStringW
SetEnvironmentVariableA
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCPInfo
GetOEMCP
IsValidCodePage
FindNextFileA
FindFirstFileExA
FindClose
GetFileType
HeapAlloc
HeapFree
GetACP
GetCommandLineW
GetCommandLineA
WriteFile
GetStdHandle
WideCharToMultiByte
MultiByteToWideChar
GetModuleFileNameA
CloseHandle
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
SetEvent
ResetEvent
WaitForSingleObjectEx
CreateEventW
GetModuleHandleW
GetProcAddress
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
CreateFileW
InitializeSListHead
RtlPcToFileHeader
EncodePointer
RaiseException
GetLastError
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
RtlUnwindEx
SetLastError
GetCurrentProcess
ExitProcess
TerminateProcess
GetModuleHandleExW
Sections
.text Size: 82KB - Virtual size: 81KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 45KB - Virtual size: 44KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 5KB - Virtual size: 4KB
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
.gfids Size: 512B - Virtual size: 212B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ