Behavioral task
behavioral1
Sample
cb946cdbe2f67cfcdbf9d69c2339b1998add5b17a98567b7dbfc501a423ef5bd.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
cb946cdbe2f67cfcdbf9d69c2339b1998add5b17a98567b7dbfc501a423ef5bd.exe
Resource
win10v2004-20231020-en
General
-
Target
cb946cdbe2f67cfcdbf9d69c2339b1998add5b17a98567b7dbfc501a423ef5bd
-
Size
147KB
-
MD5
b2243f9694c52b1dee21ee71c69cb991
-
SHA1
0def6900a4827439617db2a5990fe3c11545c549
-
SHA256
cb946cdbe2f67cfcdbf9d69c2339b1998add5b17a98567b7dbfc501a423ef5bd
-
SHA512
dae439cef0e6e41b03ecd2b3a955787d9cab45f639edd43ec318ddfdd31d86d2d146f9f26ec56d88e3d41cbaf7cce78b1827c825e14979b8c41b7f5826ea6409
-
SSDEEP
1536:OPSdFZysjPWJFmwMR2zuMgipUNhqyaJq7tgoSaqlPLZ9tdDzZNpnSgWukEPH201l:OPEZyuPWnx5zu7ZSa4Z9nFHSn5yWKaS
Malware Config
Extracted
cobaltstrike
http://54.238.191.171:12345/n9pF
-
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 cb946cdbe2f67cfcdbf9d69c2339b1998add5b17a98567b7dbfc501a423ef5bd
Files
-
cb946cdbe2f67cfcdbf9d69c2339b1998add5b17a98567b7dbfc501a423ef5bd.exe windows:6 windows x64 arch:x64
a7b82078416cd38e1e4b5adeea67d5dc
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
GetStdHandle
GetCurrentProcessId
TryAcquireSRWLockExclusive
QueryPerformanceCounter
HeapAlloc
GetProcessHeap
HeapFree
RtlVirtualUnwind
HeapReAlloc
AcquireSRWLockShared
WaitForSingleObjectEx
LoadLibraryA
GetModuleHandleA
GetEnvironmentVariableW
GetCurrentDirectoryW
GetConsoleMode
SetLastError
RtlLookupFunctionEntry
GetProcAddress
GetModuleHandleW
RtlCaptureContext
MultiByteToWideChar
WriteConsoleW
GetSystemTimeAsFileTime
GetCurrentThread
GetCurrentProcess
AcquireSRWLockExclusive
InitializeSListHead
SetThreadStackGuarantee
AddVectoredExceptionHandler
GetLastError
ReleaseSRWLockShared
ReleaseMutex
IsDebuggerPresent
UnhandledExceptionFilter
ReleaseSRWLockExclusive
SetUnhandledExceptionFilter
GetCurrentThreadId
CloseHandle
VirtualFree
WaitForSingleObject
CreateThread
CreateMutexA
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
_initterm_e
_seh_filter_exe
_set_app_type
_initialize_onexit_table
_initialize_narrow_environment
_register_thread_local_exe_atexit_callback
_register_onexit_function
_crt_atexit
terminate
_configure_narrow_argv
exit
_exit
_get_initial_narrow_environment
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
_set_new_mode
free
Sections
.text Size: 102KB - Virtual size: 102KB
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