Static task
static1
Behavioral task
behavioral1
Sample
1-mfemms.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
1-mfemms.exe
Resource
win10v2004-20230220-en
Behavioral task
behavioral3
Sample
2-Protection.mof
Resource
win7-20230220-en
Behavioral task
behavioral4
Sample
2-Protection.mof
Resource
win10v2004-20230220-en
General
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Target
PerfLogs (2).zip
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Size
1.7MB
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MD5
1299f0c11d924970beaae4cc2102fba8
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SHA1
9a8adf488313ac0513fc1636e8230f4987ea609c
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SHA256
1948fa9631d28f672ba3a052efb5ffd5ced46cf8cd3f07e32a79fdd6675c6491
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SHA512
73ecac3af8d904cf8cbbd21c32a149802f084a4bbc89fdee265081f49d76e42d5d0bda94e0a8b202c80c3dafa8f04317ee3dedfbe5407e205a31455149111799
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SSDEEP
49152:tJpJPtOIpg05OSoWz6T/rGAnJo1ByjY0NC2:31Oog0MKQvnO/D0X
Malware Config
Signatures
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Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/0-spoolsv.exe unpack001/1-mfemms.exe
Files
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PerfLogs (2).zip.zip
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0-spoolsv.exe.exe windows x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
mscoree
_CorExeMain
Sections
.text Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
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1-mfemms.exe.exe windows x64
d7afd3b1ecf18f944c94ad097dda6007
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
ole32
CoTaskMemFree
StringFromIID
shlwapi
SHGetValueW
kernel32
WriteFile
WriteConsoleW
SetEndOfFile
HeapReAlloc
HeapSize
WaitForSingleObject
VirtualAlloc
VirtualProtect
VirtualFree
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
GetModuleHandleW
GetTimeZoneInformation
RtlUnwindEx
GetLastError
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetProcAddress
LoadLibraryExW
RaiseException
CreateFileW
GetDriveTypeW
GetFileInformationByHandle
GetFileType
CloseHandle
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
GetStdHandle
GetModuleFileNameW
GetCurrentProcess
ExitProcess
TerminateProcess
GetModuleHandleExW
GetCommandLineA
GetCommandLineW
HeapAlloc
HeapFree
CompareStringW
LCMapStringW
ReadFile
GetConsoleMode
ReadConsoleW
GetCurrentDirectoryW
GetFullPathNameW
MultiByteToWideChar
SetStdHandle
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
WideCharToMultiByte
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
GetStringTypeW
GetProcessHeap
FlushFileBuffers
GetConsoleOutputCP
GetFileSizeEx
SetFilePointerEx
Sections
.text Size: 127KB - Virtual size: 126KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 42KB - Virtual size: 42KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 15KB - Virtual size: 20KB
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
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2-Protection.mof