2024-10-14_66a178761f5987065f1e12398b079275_ryuk

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General

Target

2024-10-14_66a178761f5987065f1e12398b079275_ryuk
Size

1.2MB
MD5

66a178761f5987065f1e12398b079275
SHA1

1e226c43d57c4926ec3d27dfeff96041f99378cb
SHA256

5f7599330b9e2ad3346822ee85e7544194e8ea410325da45c8940dce2af0beed
SHA512

86b25a48f2d3f70997a40b5e05038d6065f060e9174a39bbb5f726f9d6d905824267ad782a3aae06ec1a4090ddd8332fefa7167067925b1a2e29f341849e3f31
SSDEEP

24576:IxnTls8oJdJuO+7JuO+wPxZS3AO2FHfbH5mLAy:IxJlQ0a0ZlLFjZm

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-10-14_66a178761f5987065f1e12398b079275_ryuk

Files

2024-10-14_66a178761f5987065f1e12398b079275_ryuk
.exe windows:6 windows x64 arch:x64

657b56109fe1640dddef75d3cb46e324

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

kernel32

GetModuleFileNameA
VirtualFree
VirtualAlloc
CloseHandle
ExitProcess
CreateProcessA
MultiByteToWideChar
VirtualQuery
GetProcAddress
GetModuleHandleExW
FreeLibrary
Sleep
GetModuleHandleW
GetStartupInfoW
IsDebuggerPresent
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
IsProcessorFeaturePresent
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext

msvcrt

__wgetmainargs
_wcmdln
__set_app_type
?_set_new_mode@@YAHH@Z
_commode
_msize
?terminate@@YAXXZ
strcpy_s
___lc_codepage_func
ceil
log10
realloc
_clearfp
_XcptFilter
wctomb_s
strtol
strnlen
wcsnlen
_errno
tolower
__pctype_func
_set_fmode
_initterm_e
_initterm
calloc
malloc
free
_localtime64
_time64
_mktime64
_difftime64
__C_specific_handler
memset
memmove
memcpy
__CxxFrameHandler3
_amsg_exit
strrchr

Exports

Exports

LZ4_attach_dictionary
LZ4_compress
LZ4_compressBound
LZ4_compress_continue
LZ4_compress_default
LZ4_compress_destSize
LZ4_compress_fast
LZ4_compress_fast_continue
LZ4_compress_fast_extState
LZ4_compress_limitedOutput
LZ4_compress_limitedOutput_continue
LZ4_compress_limitedOutput_withState
LZ4_compress_withState
LZ4_create
LZ4_createStream
LZ4_createStreamDecode
LZ4_decoderRingBufferSize
LZ4_decompress_fast
LZ4_decompress_fast_continue
LZ4_decompress_fast_usingDict
LZ4_decompress_fast_withPrefix64k
LZ4_decompress_safe
LZ4_decompress_safe_continue
LZ4_decompress_safe_partial
LZ4_decompress_safe_partial_usingDict
LZ4_decompress_safe_usingDict
LZ4_decompress_safe_withPrefix64k
LZ4_freeStream
LZ4_freeStreamDecode
LZ4_initStream
LZ4_loadDict
LZ4_loadDictSlow
LZ4_resetStream
LZ4_resetStreamState
LZ4_resetStream_fast
LZ4_saveDict
LZ4_setStreamDecode
LZ4_sizeofState
LZ4_sizeofStreamState
LZ4_slideInputBuffer
LZ4_uncompress
LZ4_uncompress_unknownOutputSize
LZ4_versionNumber
LZ4_versionString

Sections

.text
Size: 67KB - Virtual size: 67KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 12KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 28B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gehcont
Size: 512B - Virtual size: 4B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.textshe
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 104B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

657b56109fe1640dddef75d3cb46e324

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

msvcrt

Exports

Exports

Sections

.text Size: 67KB - Virtual size: 67KB

.rdata Size: 12KB - Virtual size: 11KB

.data Size: 512B - Virtual size: 1KB

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

.gfids Size: 512B - Virtual size: 28B

.gehcont Size: 512B - Virtual size: 4B

.tls Size: 1KB - Virtual size: 1KB

.textshe Size: 1.1MB - Virtual size: 1.1MB

.reloc Size: 512B - Virtual size: 104B

.rsrc Size: 512B - Virtual size: 4KB

.text
Size: 67KB - Virtual size: 67KB

.rdata
Size: 12KB - Virtual size: 11KB

.data
Size: 512B - Virtual size: 1KB

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

.gfids
Size: 512B - Virtual size: 28B

.gehcont
Size: 512B - Virtual size: 4B

.tls
Size: 1KB - Virtual size: 1KB

.textshe
Size: 1.1MB - Virtual size: 1.1MB

.reloc
Size: 512B - Virtual size: 104B

.rsrc
Size: 512B - Virtual size: 4KB