Resubmissions
19/12/2023, 15:55
231219-tc4rfsbhh3 10Behavioral task
behavioral1
Sample
b5589ccee7834cdcf7b526da8f8efd882d6b718fe8a087c523aed011bd835d4b.exe
Resource
win7-20231201-en
Behavioral task
behavioral2
Sample
b5589ccee7834cdcf7b526da8f8efd882d6b718fe8a087c523aed011bd835d4b.exe
Resource
win10v2004-20231201-en
General
-
Target
b5589ccee7834cdcf7b526da8f8efd882d6b718fe8a087c523aed011bd835d4b
-
Size
381KB
-
MD5
f65907aaf76c20f4bc9b2f522f942174
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SHA1
fe5cc69b4d27792bfd1a07bde4e5aa5fd8f9b4d3
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SHA256
b5589ccee7834cdcf7b526da8f8efd882d6b718fe8a087c523aed011bd835d4b
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SHA512
0d54c4de5af7c57f9b146e3ee047fbef5ccc6dda409bf4278453a041d575397f9ede64dd063775d11c2719290f9e1153889d07f1acc13b63b2fe6495830313ec
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SSDEEP
6144:AMnxlZ2h0IaA41uwivP/CGftZnygWzxLjM7HH5EXX/Q:AaRSPFltygWNY7n5
Malware Config
Extracted
cobaltstrike
http://124.71.143.196:28888/EfLf
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user_agent
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0; ; NCLIENT50_AAPCDA5841E333)
Signatures
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Cobaltstrike family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource b5589ccee7834cdcf7b526da8f8efd882d6b718fe8a087c523aed011bd835d4b
Files
-
b5589ccee7834cdcf7b526da8f8efd882d6b718fe8a087c523aed011bd835d4b.exe windows:6 windows x64 arch:x64
1a885fb586137990697cb9a9b2c93259
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
CloseHandle
ReleaseSRWLockExclusive
ReleaseMutex
ReleaseSRWLockShared
GetLastError
AddVectoredExceptionHandler
SetThreadStackGuarantee
QueryPerformanceCounter
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
IsProcessorFeaturePresent
MultiByteToWideChar
WriteConsoleW
GetSystemTimeAsFileTime
SetUnhandledExceptionFilter
UnhandledExceptionFilter
IsDebuggerPresent
RtlVirtualUnwind
InitializeSListHead
GetCurrentThreadId
ntdll
NtWriteFile
RtlNtStatusToDosError
vcruntime140
__current_exception_context
__current_exception
__C_specific_handler
_CxxThrowException
memmove
memcmp
memcpy
memset
__CxxFrameHandler3
api-ms-win-crt-runtime-l1-1-0
_initterm_e
exit
_exit
_initterm
__p___argc
__p___argv
_cexit
_c_exit
_register_thread_local_exe_atexit_callback
_get_initial_narrow_environment
_initialize_narrow_environment
_configure_narrow_argv
_initialize_onexit_table
_register_onexit_function
_crt_atexit
terminate
_set_app_type
_seh_filter_exe
api-ms-win-crt-math-l1-1-0
__setusermatherr
api-ms-win-crt-stdio-l1-1-0
__p__commode
_set_fmode
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
api-ms-win-crt-heap-l1-1-0
free
_set_new_mode
Sections
.text Size: 310KB - Virtual size: 310KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 57KB - Virtual size: 57KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 872B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 10KB - Virtual size: 10KB
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