Behavioral task
behavioral1
Sample
skuld.exe
Resource
win10v2004-20240508-en
General
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Target
skuld.exe
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Size
9.5MB
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MD5
4527ef40b2543cbfa46d35c25f741dae
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SHA1
f01565f1b655a840a6a4b1cbc070659014508aee
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SHA256
99fb0eca4614a74886d2d1221045c9f35b4ac7400488db84fdcebdc6bde2f88e
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SHA512
ab4b576dbbfdbb8fe4f1b170fbb9de9a484ff89fcdda60df90d524a6e0ab63e6f564cb471424dfad8fea9ef49b17bfe5c4b8ddd7be6997d8ba725d3461da4316
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SSDEEP
98304:fdWb6aDUMqI03IXN1dsv7FQMEP4KAd4f:A/UMqY1dsvBQlPTf
Malware Config
Extracted
skuld
https://discord.com/api/webhooks/1257039082274422896/395iJabK3IVPpIWgS1k1UJ3FAnHY2lWIwRcLWCTN1yTDR63aYdeLgcVrc81Dut5tbfV4
Signatures
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Skuld family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource skuld.exe
Files
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skuld.exe.exe windows:6 windows x64 arch:x64
c2d457ad8ac36fc9f18d45bffcd450c2
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
WriteFile
WriteConsoleW
WerSetFlags
WerGetFlags
WaitForMultipleObjects
WaitForSingleObject
VirtualQuery
VirtualFree
VirtualAlloc
TlsAlloc
SwitchToThread
SuspendThread
SetWaitableTimer
SetProcessPriorityBoost
SetEvent
SetErrorMode
SetConsoleCtrlHandler
RtlVirtualUnwind
RtlLookupFunctionEntry
ResumeThread
RaiseFailFastException
PostQueuedCompletionStatus
LoadLibraryW
LoadLibraryExW
SetThreadContext
GetThreadContext
GetSystemInfo
GetSystemDirectoryA
GetStdHandle
GetQueuedCompletionStatusEx
GetProcessAffinityMask
GetProcAddress
GetErrorMode
GetEnvironmentStringsW
GetCurrentThreadId
GetConsoleMode
FreeEnvironmentStringsW
ExitProcess
DuplicateHandle
CreateWaitableTimerExW
CreateThread
CreateIoCompletionPort
CreateFileA
CreateEventA
CloseHandle
AddVectoredExceptionHandler
AddVectoredContinueHandler
Sections
.text Size: 4.6MB - Virtual size: 4.6MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 4.2MB - Virtual size: 4.2MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 463KB - Virtual size: 1.0MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 107KB - Virtual size: 107KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.xdata Size: 512B - Virtual size: 180B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.idata Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 62KB - Virtual size: 61KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.symtab Size: 512B - Virtual size: 4B
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ