Behavioral task
behavioral1
Sample
08c13828e92eccc966db008bf178091d5cdcad46ce26a821d93b3fbc3a71c806.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
08c13828e92eccc966db008bf178091d5cdcad46ce26a821d93b3fbc3a71c806.exe
Resource
win10v2004-20231023-en
General
-
Target
08c13828e92eccc966db008bf178091d5cdcad46ce26a821d93b3fbc3a71c806
-
Size
147KB
-
MD5
84457cb2318634a26647e9b60008d560
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SHA1
681731c9df54f1cf7e66285e50595609478f3edc
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SHA256
08c13828e92eccc966db008bf178091d5cdcad46ce26a821d93b3fbc3a71c806
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SHA512
9cf5fa5e61b4acb6180163dd98f07dae64ff4eb7c909cf5c094c85e5979aff8838f4ca9ba915c1f964f41567a3c5afe705618ea1aaa51f6d767ae88fcea79eef
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SSDEEP
3072:rX1YyDqd5V/WDBGHfASVqG9Vs1WqIGpxW+V:DcwyVMIGpx7
Malware Config
Extracted
cobaltstrike
http://54.238.191.171:12345/n9pF
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user_agent
User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Win64; x64; Trident/6.0; MDDCJS)
Signatures
-
Cobaltstrike family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 08c13828e92eccc966db008bf178091d5cdcad46ce26a821d93b3fbc3a71c806
Files
-
08c13828e92eccc966db008bf178091d5cdcad46ce26a821d93b3fbc3a71c806.exe windows:6 windows x64 arch:x64
ebfc2ce3a8b881d8532804ba5a2358e2
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
GetCurrentProcessId
WaitForSingleObject
TryAcquireSRWLockExclusive
QueryPerformanceCounter
HeapAlloc
GetProcessHeap
HeapFree
HeapReAlloc
AcquireSRWLockShared
WaitForSingleObjectEx
LoadLibraryA
CreateMutexA
GetStdHandle
RtlVirtualUnwind
InitializeSListHead
GetEnvironmentVariableW
GetConsoleMode
GetCurrentDirectoryW
SetLastError
GetModuleHandleW
RtlLookupFunctionEntry
MultiByteToWideChar
WriteConsoleW
GetSystemTimeAsFileTime
GetProcAddress
RtlCaptureContext
GetCurrentThread
GetCurrentThreadId
GetCurrentProcess
AcquireSRWLockExclusive
SetThreadStackGuarantee
AddVectoredExceptionHandler
GetLastError
ReleaseSRWLockShared
ReleaseMutex
IsDebuggerPresent
UnhandledExceptionFilter
ReleaseSRWLockExclusive
CloseHandle
SetUnhandledExceptionFilter
VirtualFree
GetModuleHandleA
VirtualAlloc
IsProcessorFeaturePresent
ntdll
RtlNtStatusToDosError
NtWriteFile
vcruntime140
__C_specific_handler
memset
memcmp
memmove
__CxxFrameHandler3
_CxxThrowException
__current_exception_context
__current_exception
memcpy
api-ms-win-crt-runtime-l1-1-0
__p___argc
__p___argv
_cexit
_initterm
_c_exit
_register_thread_local_exe_atexit_callback
_seh_filter_exe
_set_app_type
_initterm_e
exit
_initialize_onexit_table
_initialize_narrow_environment
_register_onexit_function
_crt_atexit
terminate
_configure_narrow_argv
_exit
_get_initial_narrow_environment
api-ms-win-crt-math-l1-1-0
__setusermatherr
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: 102KB - Virtual size: 101KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 37KB - Virtual size: 37KB
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: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1024B - Virtual size: 936B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ