Sigma[.]exe | Triage

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General

Target

Sigma.exe
Size

191KB
MD5

ec8982bb5bc336fe8803c4ce78ca6b3a
SHA1

98d52086cb0fbeacdf6e722ea77553f701506ceb
SHA256

d8e07b6a5984bec06dc7507fcecb31c7260b9367bd25ae4e9c6598f30d7c93b3
SHA512

c312605e5ae560dbb8e8ceb6db164235b115fc85739d46ffc9c19d534cb8f0d6e5800993b301a4bee175d7a8508a4fb39c9e7200efa1c52f5e736ee46d86303e
SSDEEP

3072:MLKminbl12mUtxPE7LnEFOHJozH3qcoaePOX:ZbloV2dnPOX

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Sigma.exe

Files

Sigma.exe
.exe windows:5 windows x86 arch:x86

7bd697486f2b60a77d551d6aec7ef677

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

PDB Paths

C:\Users\papps\source\repos\Sigma\Release\Sigma.pdb

Imports

kernel32

HeapReAlloc
HeapSize
FlushFileBuffers
GetFileType
SetStdHandle
GetConsoleCP
GetConsoleMode
SetFilePointerEx
WriteConsoleW
GetProcessHeap
HeapAlloc
ExitThread
FindClose
FindNextFileW
HeapFree
FindFirstFileW
ExitProcess
CreateThread
GetProcAddress
LoadLibraryW
CloseHandle
Sleep
CreateFileW
WriteFile
GetStringTypeW
GetCurrentProcess
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineW
GetCommandLineA
GetCPInfo
GetOEMCP
IsValidCodePage
FindFirstFileExW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlUnwind
GetLastError
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
RaiseException
GetStdHandle
GetModuleFileNameW
MultiByteToWideChar
WideCharToMultiByte
GetModuleHandleExW
GetACP
LCMapStringW
DecodePointer

user32

GetSystemMetrics
RedrawWindow
ExitWindowsEx
GetCursorInfo
MessageBoxW
GetDC
EnableWindow
DrawIcon
SetWindowTextW
EnumWindows
ReleaseDC

gdi32

BitBlt
CreateCompatibleBitmap
SelectObject
CreateDIBSection
CreateCompatibleDC
StretchBlt
CreateRectRgn
DeleteDC
Rectangle
SelectClipRgn
DeleteObject
CreateSolidBrush
CreateEllipticRgn

advapi32

AdjustTokenPrivileges
RegCloseKey
RegCreateKeyExW
RegSetValueExW
OpenProcessToken
LookupPrivilegeValueW

shell32

ShellExecuteW

winmm

waveOutPrepareHeader
waveOutOpen
waveOutClose
waveOutUnprepareHeader
waveOutWrite

msimg32

AlphaBlend

Sections

.text
Size: 49KB - Virtual size: 48KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 29KB - Virtual size: 29KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 105KB - Virtual size: 104KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7bd697486f2b60a77d551d6aec7ef677

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

user32

gdi32

advapi32

shell32

winmm

msimg32

Sections

.text Size: 49KB - Virtual size: 48KB

.rdata Size: 29KB - Virtual size: 29KB

.data Size: 2KB - Virtual size: 4KB

.rsrc Size: 105KB - Virtual size: 104KB

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

.text
Size: 49KB - Virtual size: 48KB

.rdata
Size: 29KB - Virtual size: 29KB

.data
Size: 2KB - Virtual size: 4KB

.rsrc
Size: 105KB - Virtual size: 104KB

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