Behavioral task
behavioral1
Sample
4a9886c9301635598d26283279b66dcfa991b4083a78c779bc8d891b489e47a2.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
4a9886c9301635598d26283279b66dcfa991b4083a78c779bc8d891b489e47a2.exe
Resource
win10v2004-20230703-en
General
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Target
4a9886c9301635598d26283279b66dcfa991b4083a78c779bc8d891b489e47a2
-
Size
260KB
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MD5
efc95d5d7ed3f07661da17294e38bf49
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SHA1
a994a07cf052e216bd933835a35e11e1a45c909d
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SHA256
4a9886c9301635598d26283279b66dcfa991b4083a78c779bc8d891b489e47a2
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SHA512
74e126d7372a6a9d3869018577f7dcc5881d280a59f16b91b666d9495b63189f38a9673d2c6b353b20f22eb4217486244103e3736afa61330ec96e833c36473c
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SSDEEP
6144:/9ZFhdd/dxwcCqyi9HGfP10KFnw36J2+dBN3:/xxscvUacnD
Malware Config
Extracted
cobaltstrike
http://39.105.216.244:43210/uUPC
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user_agent
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; BOIE9;ENCA)
Signatures
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Cobaltstrike family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 4a9886c9301635598d26283279b66dcfa991b4083a78c779bc8d891b489e47a2
Files
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4a9886c9301635598d26283279b66dcfa991b4083a78c779bc8d891b489e47a2.exe windows x64
e022a12cdd5ebdd378b3c810f931f401
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
GetSystemTimeAsFileTime
QueryPerformanceCounter
ReleaseSRWLockExclusive
CloseHandle
ReleaseMutex
ReleaseSRWLockShared
GetLastError
AddVectoredExceptionHandler
SetThreadStackGuarantee
AcquireSRWLockExclusive
GetCurrentProcess
GetCurrentThread
RtlCaptureContext
GetProcAddress
RtlLookupFunctionEntry
SetLastError
GetCurrentDirectoryW
GetEnvironmentVariableW
GetStdHandle
GetCurrentProcessId
WaitForSingleObject
TryAcquireSRWLockExclusive
HeapAlloc
GetProcessHeap
HeapFree
HeapReAlloc
AcquireSRWLockShared
WaitForSingleObjectEx
LoadLibraryA
CreateMutexA
GetModuleHandleA
GetConsoleMode
GetModuleHandleW
FormatMessageW
MultiByteToWideChar
WriteConsoleW
TlsGetValue
TlsSetValue
SetUnhandledExceptionFilter
UnhandledExceptionFilter
IsDebuggerPresent
RtlVirtualUnwind
InitializeSListHead
GetCurrentThreadId
IsProcessorFeaturePresent
ntdll
RtlNtStatusToDosError
NtWriteFile
vcruntime140
__current_exception_context
__current_exception
__C_specific_handler
_CxxThrowException
memmove
memcmp
memcpy
memset
__CxxFrameHandler3
api-ms-win-crt-math-l1-1-0
__setusermatherr
api-ms-win-crt-runtime-l1-1-0
_initterm_e
exit
_exit
_initterm
__p___argc
__p___argv
_cexit
_get_initial_narrow_environment
_register_thread_local_exe_atexit_callback
_initialize_narrow_environment
_set_app_type
_configure_narrow_argv
_initialize_onexit_table
_register_onexit_function
_crt_atexit
terminate
_seh_filter_exe
_c_exit
api-ms-win-crt-stdio-l1-1-0
_set_fmode
__p__commode
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
api-ms-win-crt-heap-l1-1-0
_set_new_mode
free
Sections
.text Size: 191KB - Virtual size: 191KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 56KB - Virtual size: 55KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 760B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 9KB - Virtual size: 8KB
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