2024-04-18_ca210f94461411c2e0c4397d02271a0b_cobalt-strike_ryuk

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General

Target

2024-04-18_ca210f94461411c2e0c4397d02271a0b_cobalt-strike_ryuk
Size

355KB
MD5

ca210f94461411c2e0c4397d02271a0b
SHA1

6527bb5a6024cd905feed39e5511097e49781c8c
SHA256

998cb1445ac4c4edee109cebec57268c9ae1de5cf7a5fefacd2ac056d583cabe
SHA512

518896ed177830cc1be9f504c7e3a3f7f47d30d5efec7a020a4c0c438113556691df6285a67b9162d155b2d8d90613d84530a37569734882d67ffb4436a48f95
SSDEEP

6144:h2UTf3lCfn8W5eJd+eUme3Y7v0Ch2KxgA30ykyXn:N3lCfn8aeJdDUX+Bh245ky

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-18_ca210f94461411c2e0c4397d02271a0b_cobalt-strike_ryuk

Files

2024-04-18_ca210f94461411c2e0c4397d02271a0b_cobalt-strike_ryuk
.exe windows:6 windows x64 arch:x64

4122e72dc87e40abcf032022772fa56b

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

CloseHandle
ConvertThreadToFiber
CreateFiber
CreateFileW
CreateProcessA
CreateToolhelp32Snapshot
DeleteCriticalSection
DeleteFiber
EncodePointer
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetEnvironmentStringsW
GetFileAttributesW
GetFileType
GetLastError
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemTimeAsFileTime
GetTickCount
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeProcThreadAttributeList
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
MultiByteToWideChar
OpenProcess
Process32FirstW
Process32NextW
QueryPerformanceCounter
RaiseException
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
SleepEx
SwitchToFiber
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
UpdateProcThreadAttribute
WaitForSingleObject
WideCharToMultiByte
WriteConsoleW
WriteFile

user32

PeekMessageW
PostThreadMessageW

wininet

HttpAddRequestHeadersA
HttpOpenRequestA
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle
InternetConnectA
InternetOpenA
InternetQueryOptionA
InternetReadFile
InternetSetOptionA

Sections

.text
Size: 177KB - Virtual size: 177KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 44KB - Virtual size: 43KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 20KB - Virtual size: 33KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 140B

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 93KB - Virtual size: 93KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

4122e72dc87e40abcf032022772fa56b

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

wininet

Sections

.text Size: 177KB - Virtual size: 177KB

.rdata Size: 44KB - Virtual size: 43KB

.data Size: 20KB - Virtual size: 33KB

.pdata Size: 6KB - Virtual size: 5KB

.gxfg Size: 6KB - Virtual size: 6KB

.retplne Size: 512B - Virtual size: 140B

_RDATA Size: 512B - Virtual size: 348B

.rsrc Size: 93KB - Virtual size: 93KB

.reloc Size: 6KB - Virtual size: 5KB

.text
Size: 177KB - Virtual size: 177KB

.rdata
Size: 44KB - Virtual size: 43KB

.data
Size: 20KB - Virtual size: 33KB

.pdata
Size: 6KB - Virtual size: 5KB

.gxfg
Size: 6KB - Virtual size: 6KB

.retplne
Size: 512B - Virtual size: 140B

_RDATA
Size: 512B - Virtual size: 348B

.rsrc
Size: 93KB - Virtual size: 93KB

.reloc
Size: 6KB - Virtual size: 5KB