stub[.]exe | Triage

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General

Target

stub.exe
Size

3.6MB
MD5

1ed605b24e884fab8603f62406bcab0d
SHA1

7d48e5349646326e89901052ca3e354f6607a8b8
SHA256

be0998bdd1740994e485670ed39121b551f7f5eef3d19bc1d49b93e2c4a2c380
SHA512

1359561a293874784e4d21d5b28298297f124d976a1625b9275a7c5092696e20716945c7845074d622cfb1755f60da456fa04532fd0a79557f615e46931773e3
SSDEEP

98304:P7f1Fj0rOpJWMcm5Vu/PLVzA2tqnuDgCB8Y45Mx:j1Fj0rOp4Mcm5k/DBA2Mwgg8Y7

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
stub.exe

Files

stub.exe
.exe windows x64

6b4e0bb2e3dfb567fe45413736847cab

Headers

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

Imports

kernel32

AddVectoredExceptionHandler
SetThreadStackGuarantee
GetLastError
HeapReAlloc
HeapAlloc
GetProcessHeap
GetModuleHandleA
GetProcAddress
GetCurrentThread
TryAcquireSRWLockExclusive
ReleaseSRWLockExclusive
GetStdHandle
GetConsoleMode
WaitForSingleObject
MultiByteToWideChar
WriteConsoleW
SetLastError
WaitForSingleObjectEx
LoadLibraryA
CreateMutexA
GetCurrentProcess
ReleaseMutex
GetEnvironmentVariableW
RtlLookupFunctionEntry
GetModuleHandleW
FormatMessageW
GetTempPathW
CloseHandle
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFullPathNameW
SetFilePointerEx
CreateDirectoryW
FindFirstFileW
FindClose
AcquireSRWLockExclusive
GetEnvironmentStringsW
FreeEnvironmentStringsW
CompareStringOrdinal
GetSystemDirectoryW
GetModuleFileNameW
GetWindowsDirectoryW
CreateProcessW
GetFileAttributesW
DuplicateHandle
CreateThread
GetCurrentProcessId
CreateNamedPipeW
ReadFileEx
SleepEx
WriteFileEx
GetCurrentDirectoryW
RtlCaptureContext
AcquireSRWLockShared
ReleaseSRWLockShared
LoadLibraryExW
CreateFileW
HeapFree
FreeLibrary
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
RaiseException
RtlPcToFileHeader
EncodePointer
RtlUnwindEx
IsDebuggerPresent
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
QueryPerformanceCounter
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind

advapi32

SystemFunction036

bcrypt

BCryptGenRandom

ntdll

NtWriteFile
RtlNtStatusToDosError
NtReadFile

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

strcpy_s
wcsncmp
strlen

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

_set_new_mode
malloc
free
calloc

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

_rotl64

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

terminate
_register_onexit_function
_initialize_onexit_table
_register_thread_local_exe_atexit_callback
_seh_filter_exe
_set_app_type
_c_exit
_configure_narrow_argv
_crt_atexit
_initialize_narrow_environment
abort
_cexit
__p___argv
__p___argc
_get_initial_narrow_environment
_exit
exit
_initterm_e
_initterm

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

__setusermatherr

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

__p__commode
_set_fmode

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

_configthreadlocale

Sections

.text
Size: 395KB - Virtual size: 395KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 3.2MB - Virtual size: 3.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 252B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

6b4e0bb2e3dfb567fe45413736847cab

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

bcrypt

ntdll

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

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

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

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

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

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

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

Sections

.text Size: 395KB - Virtual size: 395KB

.rdata Size: 3.2MB - Virtual size: 3.2MB

.data Size: 4KB - Virtual size: 5KB

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

_RDATA Size: 512B - Virtual size: 252B

.reloc Size: 2KB - Virtual size: 1KB

.text
Size: 395KB - Virtual size: 395KB

.rdata
Size: 3.2MB - Virtual size: 3.2MB

.data
Size: 4KB - Virtual size: 5KB

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

_RDATA
Size: 512B - Virtual size: 252B

.reloc
Size: 2KB - Virtual size: 1KB