Static task
static1
Behavioral task
behavioral1
Sample
ComputerDefaults.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
ComputerDefaults.exe
Resource
win10v2004-20230220-en
General
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Target
ComputerDefaults.exe
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Size
64KB
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MD5
34fccd45a29b6b3191800e91d845a68a
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SHA1
e760c999cd2abd864bf1728d8d6b140852568fc2
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SHA256
621e50253e248c3e5f2cb8e657ef9b457d55edee319984296e46d719dffe5714
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SHA512
4bfe98615f5595020b44500de78ec5554cc5ca3170bfac24f94a8c5c48f135b0fa6bb405bd708c1597156ba30e9b3a1011f0052cf7ec76dc337724988c4368d7
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SSDEEP
1536:K8d8gbjJtQClK/42uQ8yrURDoq4OZZZLlCIiba:NjXvQIK/48wRD68wba
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource ComputerDefaults.exe
Files
-
ComputerDefaults.exe.exe windows x86
dcf24a295065fcfb6b7f451585917c44
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
Imports
advapi32
EventSetInformation
EventRegister
EventWriteTransfer
EventUnregister
kernel32
CreateSemaphoreExW
HeapFree
SetLastError
EnterCriticalSection
ReleaseSemaphore
GetModuleHandleExW
LeaveCriticalSection
InitializeCriticalSectionEx
WaitForThreadpoolTimerCallbacks
WaitForSingleObject
GetCurrentThreadId
ReleaseMutex
FormatMessageW
GetLastError
GetModuleFileNameA
OutputDebugStringW
CloseThreadpoolTimer
InitOnceComplete
AcquireSRWLockExclusive
WaitForSingleObjectEx
OpenSemaphoreW
CloseHandle
SetThreadpoolTimer
ReleaseSRWLockShared
CreateThreadpoolTimer
HeapAlloc
GetProcAddress
CreateMutexExW
AcquireSRWLockShared
DeleteCriticalSection
GetCurrentProcessId
GetProcessHeap
GetModuleHandleW
DebugBreak
IsDebuggerPresent
InitOnceBeginInitialize
ReleaseSRWLockExclusive
msvcrt
_except_handler4_common
??3@YAXPAX@Z
memcpy_s
_vsnwprintf
_controlfp
?terminate@@YAXXZ
_onexit
__dllonexit
_unlock
_lock
_wcmdln
_initterm
__setusermatherr
__p__fmode
_cexit
_exit
exit
__set_app_type
__wgetmainargs
_amsg_exit
__p__commode
_XcptFilter
memmove_s
_purecall
memcmp
memset
shell32
ShellExecuteExW
api-ms-win-core-synch-l1-2-0
Sleep
api-ms-win-core-processthreads-l1-1-0
TerminateProcess
GetCurrentProcess
GetStartupInfoW
api-ms-win-core-errorhandling-l1-1-0
SetUnhandledExceptionFilter
UnhandledExceptionFilter
api-ms-win-core-profile-l1-1-0
QueryPerformanceCounter
api-ms-win-core-sysinfo-l1-1-0
GetTickCount
GetSystemTimeAsFileTime
Sections
.text Size: 30KB - Virtual size: 30KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 28KB - Virtual size: 27KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ