skuld[.]exe | Triage

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General

Target

skuld.exe
Size

8.6MB
MD5

32cd82b2bc4f8360069612833dbcf604
SHA1

3db76ec3b46a39d87dbaef9214f6d877b879559c
SHA256

f6b3b4aa114cb28abf9629957a603c280de5d9af801a367055a3a1f7c3802d26
SHA512

92d640615505fa6bd2e1ad6c8275cc5c3e100bf2fba151c55b5583d332383162a457e26972628c481fac18a4b41a07e522d135500626d963e85b999486f05f6e
SSDEEP

196608:rxbiGNL3M0gmbeupqx8TFXk/XXLUuFcLSfNmL9HWG0Dmm:dbimbgQeu2Mm/HLDFcSfNs9iv

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
skuld.exe

Files

skuld.exe
.exe windows:4 windows x64 arch:x64

5e19344dafc96c19fea90182080a1a51

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

advapi32

CopySid
GetLengthSid
GetTokenInformation
IsValidSid
LookupAccountSidW
OpenProcessToken

iphlpapi

FreeMibTable
GetAdaptersAddresses
GetIfEntry2
GetIfTable2

kernel32

AddVectoredExceptionHandler
CloseHandle
CreateFileMappingA
CreateFileW
CreateRemoteThread
CreateThread
CreateToolhelp32Snapshot
DeviceIoControl
DuplicateHandle
FormatMessageW
GetConsoleMode
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentThread
GetDiskFreeSpaceExW
GetDriveTypeW
GetEnvironmentVariableW
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFullPathNameW
GetLastError
GetLogicalDrives
GetModuleHandleA
GetModuleHandleW
GetProcAddress
GetProcessHeap
GetProcessIoCounters
GetProcessTimes
GetStartupInfoA
GetStdHandle
GetSystemInfo
GetSystemTimePreciseAsFileTime
GetSystemTimes
GetTickCount64
GetVolumeInformationW
GlobalMemoryStatusEx
HeapAlloc
HeapFree
HeapReAlloc
InitOnceBeginInitialize
InitOnceComplete
LoadLibraryExA
LocalFree
MapViewOfFile
Module32FirstW
Module32NextW
MultiByteToWideChar
OpenProcess
ReadProcessMemory
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
SetLastError
SetThreadStackGuarantee
SetUnhandledExceptionFilter
Sleep
SwitchToThread
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnmapViewOfFile
VirtualAllocEx
VirtualProtectEx
VirtualQueryEx
WaitForSingleObject
WriteConsoleW
WriteProcessMemory
DeleteCriticalSection
EnterCriticalSection
InitializeCriticalSection
LeaveCriticalSection
RaiseException
RtlUnwindEx
VirtualProtect
VirtualQuery
__C_specific_handler

netapi32

NetApiBufferFree
NetUserEnum
NetUserGetInfo
NetUserGetLocalGroups

ntdll

NtQueryInformationProcess
NtQuerySystemInformation
NtWriteFile
RtlGetVersion
RtlNtStatusToDosError

ole32

CoCreateInstance
CoInitializeEx
CoInitializeSecurity
CoSetProxyBlanket
CoUninitialize

oleaut32

SysAllocString
SysFreeString
SysStringLen
VariantClear

pdh

PdhAddEnglishCounterW
PdhCloseQuery
PdhCollectQueryData
PdhGetFormattedCounterValue
PdhOpenQueryA
PdhRemoveCounter

powrprof

CallNtPowerInformation

psapi

GetModuleFileNameExW
GetPerformanceInfo

secur32

LsaEnumerateLogonSessions
LsaFreeReturnBuffer
LsaGetLogonSessionData

shell32

CommandLineToArgvW

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

WaitOnAddress
WakeByAddressAll
WakeByAddressSingle

bcryptprimitives

ProcessPrng

msvcrt

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

Sections

.text
Size: 277KB - Virtual size: 277KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 416B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 8.3MB - Virtual size: 8.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 13KB - Virtual size: 13KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 576B

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 7KB - Virtual size: 6KB

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

5e19344dafc96c19fea90182080a1a51

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

iphlpapi

kernel32

netapi32

ntdll

ole32

oleaut32

pdh

powrprof

psapi

secur32

shell32

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

bcryptprimitives

msvcrt

Sections

.text Size: 277KB - Virtual size: 277KB

.data Size: 512B - Virtual size: 416B

.rdata Size: 8.3MB - Virtual size: 8.3MB

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

.xdata Size: 13KB - Virtual size: 13KB

.bss Size: - Virtual size: 576B

.idata Size: 7KB - Virtual size: 6KB

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

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

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

.text
Size: 277KB - Virtual size: 277KB

.data
Size: 512B - Virtual size: 416B

.rdata
Size: 8.3MB - Virtual size: 8.3MB

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

.xdata
Size: 13KB - Virtual size: 13KB

.bss
Size: - Virtual size: 576B

.idata
Size: 7KB - Virtual size: 6KB

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

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

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