sigma8[.]exe | Triage

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General

Target

sigma8.exe
Size

317KB
MD5

3f5d49e0931b38e06bc462ece96e05eb
SHA1

3f8e5cc785431afbeaeec4c03e020e1fb98b8c9a
SHA256

b51ccac9172b10f3b730c8ae7353cd11bfe2ead8cc8d0e153bada5ad23e1e090
SHA512

67cc3f844403308eaa13ded7e0c4167f0878e3faed0813a23559d15097b0d7c7884922bb913b895ffeb3078ed2130646a8d9f13af05d4c20e33e0c162fe2fb0a
SSDEEP

6144:rrlK1ugS2q7Yu2+Kpe7dYXq2r0xAKyGJlETs9lWXoIsJVl85hee5hur:rrlYu2D87XmnBTs95ordbW

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
sigma8.exe

Files

sigma8.exe
.exe windows:4 windows x64 arch:x64

336ddfad45cbcb5f14398120b3bbe548

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED

Imports

kernel32

AddVectoredExceptionHandler
CloseHandle
CopyFileExW
CreateDirectoryW
CreateFileMappingA
CreateFileW
CreateToolhelp32Snapshot
CreateWaitableTimerExW
DuplicateHandle
FindClose
FindFirstFileW
FormatMessageW
GetConsoleMode
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentThread
GetEnvironmentVariableW
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFullPathNameW
GetLastError
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleW
GetProcAddress
GetProcessHeap
GetStartupInfoA
GetStdHandle
HeapAlloc
HeapFree
HeapReAlloc
InitOnceBeginInitialize
InitOnceComplete
MapViewOfFile
Module32FirstW
Module32NextW
MultiByteToWideChar
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
SetFileInformationByHandle
SetLastError
SetThreadStackGuarantee
SetUnhandledExceptionFilter
SetWaitableTimer
Sleep
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnmapViewOfFile
WaitForSingleObject
WriteConsoleW
DeleteCriticalSection
EnterCriticalSection
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
GetTickCount
InitializeCriticalSection
LeaveCriticalSection
QueryPerformanceCounter
RaiseException
RtlAddFunctionTable
RtlUnwindEx
TerminateProcess
UnhandledExceptionFilter
VirtualProtect
VirtualQuery
__C_specific_handler

api-ms-win-core-synch-l1-2-0

WaitOnAddress
WakeByAddressAll
WakeByAddressSingle

msvcrt

__getmainargs
__initenv
__iob_func
__lconv_init
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_cexit
_fmode
_fpreset
_initterm
_onexit
abort
calloc
exit
fprintf
free
fwrite
malloc
memcmp
memcpy
memmove
memset
signal
strlen
strncmp
vfprintf

ntdll

NtWriteFile
RtlNtStatusToDosError

Sections

.text
Size: 242KB - Virtual size: 241KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 256B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 48KB - Virtual size: 47KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 2KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 112B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

336ddfad45cbcb5f14398120b3bbe548

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

api-ms-win-core-synch-l1-2-0

msvcrt

ntdll

Sections

.text Size: 242KB - Virtual size: 241KB

.data Size: 512B - Virtual size: 256B

.rdata Size: 48KB - Virtual size: 47KB

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

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

.bss Size: - Virtual size: 2KB

.idata Size: 4KB - Virtual size: 4KB

.CRT Size: 512B - Virtual size: 112B

.tls Size: 512B - Virtual size: 16B

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

.text
Size: 242KB - Virtual size: 241KB

.data
Size: 512B - Virtual size: 256B

.rdata
Size: 48KB - Virtual size: 47KB

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

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

.bss
Size: - Virtual size: 2KB

.idata
Size: 4KB - Virtual size: 4KB

.CRT
Size: 512B - Virtual size: 112B

.tls
Size: 512B - Virtual size: 16B

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