D:\Projects\WinRAR\sfx\build\sfxrar32\Release\sfxrar.pdb
Static task
static1
Behavioral task
behavioral1
Sample
krunker.iohacks.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
krunker.iohacks.exe
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
krunker.iohacks.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral4
Sample
krunker.iohacks.exe
Resource
win11-20240221-en
General
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Target
krunker.iohacks.cc
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Size
30.9MB
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MD5
2850f1cb75953d9e0232344f6a13bf48
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SHA1
141ab8929fbe01031ab1e559d880440ae931cc16
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SHA256
892f11af94dea87bc8a85acdb092c74541b0ab63c8fcc1823ba7987c82c6e9ba
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SHA512
25551eb0fbca013bcebd514eb72185e157a07f116a6973bfe4b728febcefc7044a816c5c70048c3fda2eeb4ce53b52bd7b19ef1ef851a0f4fc90451e60540d6d
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SSDEEP
786432:j8Zic+QKJObt2u8xQYcLpoTEjoAsM0D0EHShV/:j8YQzB8xQzLp+nAV0BK
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource krunker.iohacks.cc
Files
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krunker.iohacks.cc.exe windows:5 windows x86 arch:x86
12e12319f1029ec4f8fcbed7e82df162
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
PDB Paths
Imports
kernel32
GetLastError
SetLastError
FormatMessageW
GetCurrentProcess
DeviceIoControl
SetFileTime
CloseHandle
CreateDirectoryW
RemoveDirectoryW
CreateFileW
DeleteFileW
CreateHardLinkW
GetShortPathNameW
GetLongPathNameW
MoveFileW
GetFileType
GetStdHandle
WriteFile
ReadFile
FlushFileBuffers
SetEndOfFile
SetFilePointer
SetFileAttributesW
GetFileAttributesW
FindClose
FindFirstFileW
FindNextFileW
InterlockedDecrement
GetVersionExW
GetCurrentDirectoryW
GetFullPathNameW
FoldStringW
GetModuleFileNameW
GetModuleHandleW
FindResourceW
FreeLibrary
GetProcAddress
GetCurrentProcessId
ExitProcess
SetThreadExecutionState
Sleep
LoadLibraryW
GetSystemDirectoryW
CompareStringW
AllocConsole
FreeConsole
AttachConsole
WriteConsoleW
GetProcessAffinityMask
CreateThread
SetThreadPriority
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
SetEvent
ResetEvent
ReleaseSemaphore
WaitForSingleObject
CreateEventW
CreateSemaphoreW
GetSystemTime
SystemTimeToTzSpecificLocalTime
TzSpecificLocalTimeToSystemTime
SystemTimeToFileTime
FileTimeToLocalFileTime
LocalFileTimeToFileTime
FileTimeToSystemTime
GetCPInfo
IsDBCSLeadByte
MultiByteToWideChar
WideCharToMultiByte
GlobalAlloc
LockResource
GlobalLock
GlobalUnlock
GlobalFree
LoadResource
SizeofResource
SetCurrentDirectoryW
GetExitCodeProcess
GetLocalTime
GetTickCount
MapViewOfFile
UnmapViewOfFile
CreateFileMappingW
OpenFileMappingW
GetCommandLineW
SetEnvironmentVariableW
ExpandEnvironmentStringsW
GetTempPathW
MoveFileExW
GetLocaleInfoW
GetTimeFormatW
GetDateFormatW
GetNumberFormatW
DecodePointer
SetFilePointerEx
GetConsoleMode
GetConsoleCP
HeapSize
SetStdHandle
GetProcessHeap
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineA
GetOEMCP
RaiseException
GetSystemInfo
VirtualProtect
VirtualQuery
LoadLibraryExA
IsProcessorFeaturePresent
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
QueryPerformanceCounter
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
TerminateProcess
LocalFree
RtlUnwind
EncodePointer
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
LoadLibraryExW
QueryPerformanceFrequency
GetModuleHandleExW
GetModuleFileNameA
GetACP
HeapFree
HeapAlloc
HeapReAlloc
GetStringTypeW
LCMapStringW
FindFirstFileExA
FindNextFileA
IsValidCodePage
oleaut32
SysAllocString
SysFreeString
VariantClear
gdiplus
GdipAlloc
GdipDisposeImage
GdipCloneImage
GdipCreateBitmapFromStream
GdipCreateBitmapFromStreamICM
GdipCreateHBITMAPFromBitmap
GdiplusStartup
GdiplusShutdown
GdipFree
Sections
.text Size: 199KB - Virtual size: 198KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 44KB - Virtual size: 43KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 145KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.didat Size: 512B - Virtual size: 400B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 56KB - Virtual size: 55KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 9KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ