Static task
static1
Behavioral task
behavioral1
Sample
klc.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
klc.exe
Resource
win10v2004-20240419-en
General
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Target
klc.exe
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Size
1.5MB
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MD5
b0af27c05a63ab59e11a1448f9b70034
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SHA1
205872f3ef0e30f570033dfca340d34e4b58f460
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SHA256
19cd77c9176d84464531afdccae7a6257186221b1eaa13cc094cdea39e2ce90e
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SHA512
320f38d5676fc5d5eeded333ddd2663a1497e1969d542d3e13d3462d3430eb3e3a2c5c4a49caccc09c96706243d968aafd459eb7baf88a1d6387910d7c7efb0e
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SSDEEP
49152:ZXR+DwFmw9f6ysfHsmyejVfhFfWMbqF7:6cFHGfMneBfWdF7
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource klc.exe
Files
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klc.exe.exe windows:6 windows x64 arch:x64
b2e85547a593f474dbf08be2b6f264f7
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
GetCurrentProcess
LoadLibraryA
GetProcAddress
FreeLibrary
SetEndOfFile
WriteConsoleW
HeapReAlloc
HeapSize
CreateFileW
ReadConsoleW
GetLastError
MultiByteToWideChar
WideCharToMultiByte
LocalFree
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
RtlUnwindEx
RtlPcToFileHeader
RaiseException
SetLastError
EncodePointer
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
LoadLibraryExW
ExitProcess
GetModuleHandleExW
GetModuleFileNameW
GetStdHandle
WriteFile
HeapFree
CloseHandle
HeapAlloc
GetConsoleOutputCP
GetConsoleMode
GetFileSizeEx
SetFilePointerEx
GetDateFormatW
GetTimeFormatW
CompareStringW
LCMapStringW
GetTimeZoneInformation
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
GetProcessHeap
GetFileType
SetStdHandle
GetStringTypeW
FlushFileBuffers
ReadFile
oleaut32
SysFreeString
SysAllocString
VariantClear
VariantInit
Sections
.text Size: 135KB - Virtual size: 134KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 45KB - Virtual size: 44KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1.3MB - Virtual size: 1.3MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 6KB - Virtual size: 6KB
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