sigma56[.]exe | Triage

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General

Target

sigma56.exe
Size

299KB
MD5

4251de902d30c3e2825ae735cd98740d
SHA1

2d6d7b7072512d5aa13eb31fdaef766f9076f242
SHA256

f6bd753fce059b8484f1997e113d13ec811e2e4fd19623a3a06c66a571475467
SHA512

80bdccb63c8c0b25bbccd38a392d223fd247a3c43f45c30131b8d6baa7a94e2e41fa51c5c0781d237ccf8afe5b6867d5a308101312a5e3ba3eee43b909b45166
SSDEEP

6144:toYaLsLOz74uXoI2NyGNygiT93lA5Jj3qkNi57o:iYaoCzjkqT930am08

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
sigma56.exe

Files

sigma56.exe
.exe windows:4 windows x64 arch:x64

628ded03f6634358a534d1f7795201ab

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
CreateFileMappingA
CreateFileW
CreateToolhelp32Snapshot
DuplicateHandle
FormatMessageW
GetConsoleMode
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentThread
GetEnvironmentVariableW
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFullPathNameW
GetLastError
GetModuleHandleA
GetModuleHandleW
GetProcAddress
GetProcessHeap
GetStartupInfoA
GetStdHandle
HeapAlloc
HeapFree
HeapReAlloc
InitOnceBeginInitialize
InitOnceComplete
MapViewOfFile
Module32FirstW
Module32NextW
MultiByteToWideChar
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
SetLastError
SetThreadStackGuarantee
SetUnhandledExceptionFilter
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: 230KB - Virtual size: 229KB

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: 44KB - Virtual size: 43KB

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: 11KB - Virtual size: 10KB

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: 3KB

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

628ded03f6634358a534d1f7795201ab

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

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

msvcrt

ntdll

Sections

.text Size: 230KB - Virtual size: 229KB

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

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

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

.xdata Size: 11KB - Virtual size: 10KB

.bss Size: - Virtual size: 2KB

.idata Size: 4KB - Virtual size: 3KB

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

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

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

.text
Size: 230KB - Virtual size: 229KB

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

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

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

.xdata
Size: 11KB - Virtual size: 10KB

.bss
Size: - Virtual size: 2KB

.idata
Size: 4KB - Virtual size: 3KB

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

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

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