MicrosoftUpdateService
Static task
static1
Behavioral task
behavioral1
Sample
1f5a915e75ad96e560cee3e24861cf6f8de299fdf79e1829453defbfe2013239.dll
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
1f5a915e75ad96e560cee3e24861cf6f8de299fdf79e1829453defbfe2013239.dll
Resource
win10v2004-20240226-en
General
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Target
1f5a915e75ad96e560cee3e24861cf6f8de299fdf79e1829453defbfe2013239
-
Size
297KB
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MD5
d622b7b553d981c526ab7ac4c5884ad5
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SHA1
bca1177027130c0d6b30a328cff526e882cc8d65
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SHA256
1f5a915e75ad96e560cee3e24861cf6f8de299fdf79e1829453defbfe2013239
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SHA512
c5ef99d73ca520a775c05e6e7be3205cb5cf34f7ab227903a6cd0f42bd78c7dbc3f0e3e6aa643016cc1a744163e51ac85d4bf05367d2370a06a25d6e694f11ae
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SSDEEP
6144:1msMAvQ2l2lr0TVLWmwaRPl2Bal9W8g+3IW8O:1bMWQ2l2lrSLxqBaXg+YHO
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource 1f5a915e75ad96e560cee3e24861cf6f8de299fdf79e1829453defbfe2013239
Files
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1f5a915e75ad96e560cee3e24861cf6f8de299fdf79e1829453defbfe2013239.dll windows:6 windows x86 arch:x86
c4bd1ee0d74a6259873b03a87612087a
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL
Imports
kernel32
GetCurrentDirectoryA
WinExec
CreateMutexW
GetLastError
CreateThread
GetProcAddress
GetModuleHandleW
EncodePointer
DecodePointer
GetCommandLineA
GetCurrentThreadId
RaiseException
RtlUnwind
HeapFree
IsProcessorFeaturePresent
HeapAlloc
IsDebuggerPresent
EnterCriticalSection
LeaveCriticalSection
ExitProcess
GetModuleHandleExW
MultiByteToWideChar
WideCharToMultiByte
HeapSize
SetLastError
GetProcessHeap
GetStdHandle
GetFileType
DeleteCriticalSection
GetStartupInfoW
GetModuleFileNameA
QueryPerformanceCounter
GetCurrentProcessId
GetSystemTimeAsFileTime
GetEnvironmentStringsW
FreeEnvironmentStringsW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
InitializeCriticalSectionAndSpinCount
Sleep
GetCurrentProcess
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
WriteFile
GetModuleFileNameW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
LoadLibraryExW
HeapReAlloc
LCMapStringW
OutputDebugStringW
FlushFileBuffers
GetConsoleCP
GetConsoleMode
GetStringTypeW
SetFilePointerEx
CloseHandle
SetStdHandle
WriteConsoleW
CreateFileW
Exports
Exports
Sections
.text Size: 56KB - Virtual size: 56KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 229KB - Virtual size: 229KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 5KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 512B - Virtual size: 480B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ