cobaltstrike | 2024-06-07_687220a9fca3a2582e102f3e2fcb1688_ryuk

General

Target
2024-06-07_687220a9fca3a2582e102f3e2fcb1688_ryuk
Size 10.3MB
Sample240607-hc223sce38
SHA256 be3d50fede3068ef0a880b1fd951756c8bfc30f63063a4fa2a627275f717febf
MD5 687220a9fca3a2582e102f3e2fcb1688
SHA1 3eaec826f084c2650e1213f13860bb253fe9fde6
SHA512 451d2c8128c847d67c6d1c1802d6e1daa70513affa45af6e0516d4406324481f4b9e1e674a08c100ef750da2d897e7e291a7ace6ddf9870389777b0ee98ff1a3
SSDEEP 196608:YSg+GIxPQOz7z9onJ5hrZERlyiU8AdZYJERY48RmU/3ZlsPvZN4rT72ED8CAc3Dv:rP5l7z9c5hlERJAdZYyGtN3ZW8rnUc3r
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

pyinstaller cobaltstrike

Malware Config

Extracted

Family

cobaltstrike

C2

http://192.168.0.102:80/4Kjt

Attributes

user_agent
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; InfoPath.2; .NET4.0C; .NET4.0E)

Signatures

Cobaltstrike family
cobaltstrike

Detects Pyinstaller 1 IoCs

pyinstaller

resource	yara_rule
sample	pyinstaller

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-06-07_687220a9fca3a2582e102f3e2fcb1688_ryuk

File Explorer

2024-06-07_687220a9fca3a2582e102f3e2fcb1688_ryuk

.exe 10.3MB
shellcodeCreateNew.pyc

1KB

2024-06-07_687220a9fca3a2582e102f3e2fcb1688_ryuk

IMPHASH 58053a2a3020fdc7713b576ad93bf7bd
SHA256 be3d50fede3068ef0a880b1fd951756c8bfc30f63063a4fa2a627275f717febf
MD5 687220a9fca3a2582e102f3e2fcb1688
SHA1 3eaec826f084c2650e1213f13860bb253fe9fde6
SHA512 451d2c8128c847d67c6d1c1802d6e1daa70513affa45af6e0516d4406324481f4b9e1e674a08c100ef750da2d897e7e291a7ace6ddf9870389777b0ee98ff1a3
SSDEEP 196608:YSg+GIxPQOz7z9onJ5hrZERlyiU8AdZYJERY48RmU/3ZlsPvZN4rT72ED8CAc3Dv:rP5l7z9c5hlERJAdZYyGtN3ZW8rnUc3r
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x64 arch:x64

Detects Pyinstaller

pyinstaller
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

2

Major OS version

5

Entry point

34388

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

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

PDB paths

kernel32

GetModuleFileNameW GetProcAddress GetCommandLineW GetEnvironmentVariableW SetEnvironmentVariableW ExpandEnvironmentStringsW GetTempPathW WaitForSingleObject SetDllDirectoryW GetExitCodeProcess CreateProcessW GetStartupInfoW LoadLibraryExW CreateDirectoryW FormatMessageW LoadLibraryA MultiByteToWideChar WideCharToMultiByte Sleep GetLastError SetEndOfFile HeapReAlloc RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind UnhandledExceptionFilter SetUnhandledExceptionFilter GetCurrentProcess TerminateProcess IsProcessorFeaturePresent QueryPerformanceCounter GetCurrentProcessId GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead IsDebuggerPresent GetModuleHandleW RtlUnwindEx SetLastError EnterCriticalSection LeaveCriticalSection DeleteCriticalSection InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree FreeLibrary GetCommandLineA ReadFile CreateFileW GetDriveTypeW GetFileType CloseHandle PeekNamedPipe SystemTimeToTzSpecificLocalTime FileTimeToSystemTime GetFullPathNameW GetFullPathNameA RemoveDirectoryW FindClose FindFirstFileExW FindNextFileW SetStdHandle SetConsoleCtrlHandler DeleteFileW GetStdHandle WriteFile ExitProcess GetModuleHandleExW GetACP HeapFree HeapAlloc GetConsoleMode ReadConsoleW SetFilePointerEx GetConsoleCP CompareStringW LCMapStringW GetCurrentDirectoryW FlushFileBuffers SetEnvironmentVariableA GetFileAttributesExW IsValidCodePage GetOEMCP GetCPInfo GetEnvironmentStringsW FreeEnvironmentStringsW GetStringTypeW GetProcessHeap WriteConsoleW GetTimeZoneInformation HeapSize RaiseException

advapi32

ConvertStringSecurityDescriptorToSecurityDescriptorW

ws2_32

ntohl

Name

.text

Size

132KB

Virtual Size

131KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

62KB

Virtual Size

61KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

44KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

7KB

Virtual Size

7KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.gfids

Size

512B

Virtual Size

172B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

59KB

Virtual Size

58KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

2KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Extracted

Signatures

File Explorer

2024-06-07_687220a9fca3a2582e102f3e2fcb1688_ryuk

kernel32

advapi32

ws2_32

generic

shellcodeCreateNew.pyc