sigma[.]exe | Triage

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General

Target

sigma.exe
Size

148KB
MD5

26ae35605940373c1b0815fa3143264c
SHA1

8d28d609ad19fcefb6949259d382a362e565a695
SHA256

41d29d9ef72abb95bfced927f9c9a872fc00f8d035e6679ce6f98e1e0fedf006
SHA512

eba7023a54199920114f28fc84ee7deaf1ef63f5368dc010b30a4d539d950ced176a85cb6a541198c02cf10158b81075c8f30da2d23f956d5bf56f31cc62d7f7
SSDEEP

1536:9nkGTXCWARP1h4fdNQkagdgeHGPJwvWAOrMczD7dqvSLXWYY+oawmaKB+ufNOsAb:9kgLK1h4fdNQWxVuRbe1d4+u/klmg

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs
Checks for missing Authenticode signature.

Processes:

resource

sigma.exe

resource
sigma.exe

Files

sigma.exe
.exe windows:4 windows x64 arch:x64

d3a2cefca88f3ed700b8b07409374b03

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_LARGE_ADDRESS_AWARE

Imports

kernel32

DeleteCriticalSection
EnterCriticalSection
GetLastError
GetStartupInfoA
InitializeCriticalSection
LeaveCriticalSection
SetUnhandledExceptionFilter
Sleep
TlsGetValue
VirtualProtect
VirtualQuery

api-ms-win-crt-environment-l1-1-0

__p__environ
__p__wenviron

api-ms-win-crt-heap-l1-1-0

_set_new_mode
calloc
free
malloc

api-ms-win-crt-math-l1-1-0

__setusermatherr

api-ms-win-crt-multibyte-l1-1-0

_ismbblead

api-ms-win-crt-private-l1-1-0

__C_specific_handler
memcpy

api-ms-win-crt-runtime-l1-1-0

__p___argc
__p___argv
__p___wargv
__p__acmdln
_cexit
_configure_narrow_argv
_configure_wide_argv
_crt_at_quick_exit
_crt_atexit
_exit
_initialize_narrow_environment
_initialize_wide_environment
_initterm
_set_app_type
_set_invalid_parameter_handler
abort
exit
signal

api-ms-win-crt-stdio-l1-1-0

__acrt_iob_func
__p__commode
__p__fmode
__stdio_common_vfprintf
__stdio_common_vfwprintf
fwrite

api-ms-win-crt-string-l1-1-0

strcmp
strlen
strncmp

api-ms-win-crt-time-l1-1-0

__daylight
__timezone
__tzname
_tzset

user32

CreateWindowExA
DefWindowProcA
DispatchMessageA
GetMessageA
GetWindowTextA
PostQuitMessage
RegisterClassA
SetWindowTextA
ShowWindow
TranslateMessage

Sections

.text
Size: 8KB - Virtual size: 8KB

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: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.pdata
Size: 1024B - Virtual size: 624B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 512B - Virtual size: 496B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 416B

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 96B

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

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 144B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/4
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/19
Size: 50KB - Virtual size: 50KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/31
Size: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/45
Size: 8KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/57
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/70
Size: 1024B - Virtual size: 747B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/81
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/97
Size: 5KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/113
Size: 512B - Virtual size: 445B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

d3a2cefca88f3ed700b8b07409374b03

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

api-ms-win-crt-environment-l1-1-0

api-ms-win-crt-heap-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-multibyte-l1-1-0

api-ms-win-crt-private-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-time-l1-1-0

user32

Sections

.text Size: 8KB - Virtual size: 8KB

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

.rdata Size: 3KB - Virtual size: 2KB

.pdata Size: 1024B - Virtual size: 624B

.xdata Size: 512B - Virtual size: 496B

.bss Size: - Virtual size: 416B

.idata Size: 3KB - Virtual size: 2KB

.CRT Size: 512B - Virtual size: 96B

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

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

.reloc Size: 512B - Virtual size: 144B

/4 Size: 1KB - Virtual size: 1KB

/19 Size: 50KB - Virtual size: 50KB

/31 Size: 9KB - Virtual size: 8KB

/45 Size: 8KB - Virtual size: 8KB

/57 Size: 2KB - Virtual size: 2KB

/70 Size: 1024B - Virtual size: 747B

/81 Size: 6KB - Virtual size: 6KB

/97 Size: 5KB - Virtual size: 5KB

/113 Size: 512B - Virtual size: 445B

.text
Size: 8KB - Virtual size: 8KB

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

.rdata
Size: 3KB - Virtual size: 2KB

.pdata
Size: 1024B - Virtual size: 624B

.xdata
Size: 512B - Virtual size: 496B

.bss
Size: - Virtual size: 416B

.idata
Size: 3KB - Virtual size: 2KB

.CRT
Size: 512B - Virtual size: 96B

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

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

.reloc
Size: 512B - Virtual size: 144B

/4
Size: 1KB - Virtual size: 1KB

/19
Size: 50KB - Virtual size: 50KB

/31
Size: 9KB - Virtual size: 8KB

/45
Size: 8KB - Virtual size: 8KB

/57
Size: 2KB - Virtual size: 2KB

/70
Size: 1024B - Virtual size: 747B

/81
Size: 6KB - Virtual size: 6KB

/97
Size: 5KB - Virtual size: 5KB

/113
Size: 512B - Virtual size: 445B