Static task
static1
Behavioral task
behavioral1
Sample
CosUsermode.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
CosUsermode.exe
Resource
win10v2004-20220812-en
General
-
Target
CosUsermode.exe
-
Size
66KB
-
MD5
188a9db56ad2b19feee475bd1d0884f1
-
SHA1
569842d053d1a02030e216e749e84b1946558530
-
SHA256
2cadff44821d2a05023ea0c9a699d121f0f4b10086d309fef4687979dcc757eb
-
SHA512
3356582d02f958ef1a83ad2bc2b159d974488225ed42817059f6f628fdbe8f48d96ab733e2b225d3e00353eaa6425cdf2304f9fab413d14eb48b229f70a4486a
-
SSDEEP
1536:R1XPIeGXpLd/eO2VU2TpYsR/hGPtm2nQ:RSeuLd2OmTlYsRZgnQ
Malware Config
Signatures
Files
-
CosUsermode.exe.exe windows x64
870f7f33bce85849d68d6a0fc254dda6
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
GetProcAddress
LoadLibraryW
CloseHandle
GetModuleHandleA
GetCurrentProcess
FormatMessageA
CreateFileW
GetFileAttributesW
GetFileAttributesExW
GetFullPathNameW
SetFileInformationByHandle
GetTempPathW
AreFileApisANSI
GetLastError
GetFileInformationByHandleEx
MultiByteToWideChar
WideCharToMultiByte
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
SetEvent
ResetEvent
WaitForSingleObjectEx
CreateEventW
GetModuleHandleW
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
LocalFree
advapi32
RegSetValueExA
RegCreateKeyA
LookupPrivilegeValueW
AdjustTokenPrivileges
RegCloseKey
RegOpenKeyA
OpenProcessToken
RegDeleteKeyA
msvcp140
??1_Lockit@std@@QEAA@XZ
??Bid@locale@std@@QEAA_KXZ
?always_noconv@codecvt_base@std@@QEBA_NXZ
??0_Lockit@std@@QEAA@H@Z
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?_Winerror_map@std@@YAHH@Z
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?_Xlength_error@std@@YAXPEBD@Z
?_Syserror_map@std@@YAPEBDH@Z
??1?$basic_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?write@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@PEBD_J@Z
??1?$basic_ostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_J@Z
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
??0?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?_Pninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ
?out@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?in@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
??0?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXXZ
?getloc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEBA?AVlocale@2@XZ
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
?unshift@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEAD1AEAPEAD@Z
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sbumpc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
ntdll
RtlAnsiStringToUnicodeString
RtlInitAnsiString
vcruntime140_1
__CxxFrameHandler4
vcruntime140
_CxxThrowException
memset
__current_exception_context
__current_exception
__std_terminate
__std_exception_copy
__std_exception_destroy
memcmp
memcpy
__C_specific_handler
memmove
api-ms-win-crt-stdio-l1-1-0
fread
fsetpos
ungetc
fgetpos
fwrite
_get_stream_buffer_pointers
_set_fmode
__stdio_common_vfprintf
fgetc
_fseeki64
fclose
fflush
__acrt_iob_func
__p__commode
fputc
setvbuf
api-ms-win-crt-heap-l1-1-0
_set_new_mode
_callnewh
free
malloc
api-ms-win-crt-utility-l1-1-0
rand
api-ms-win-crt-filesystem-l1-1-0
_unlock_file
_lock_file
api-ms-win-crt-runtime-l1-1-0
_initterm
_initterm_e
exit
_exit
__p___argc
_seh_filter_exe
_cexit
_crt_atexit
_register_onexit_function
_initialize_onexit_table
_initialize_narrow_environment
_configure_narrow_argv
__p___argv
_c_exit
_register_thread_local_exe_atexit_callback
terminate
_set_app_type
_get_initial_narrow_environment
_invalid_parameter_noinfo_noreturn
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
___lc_codepage_func
api-ms-win-crt-math-l1-1-0
__setusermatherr
Sections
.text Size: 30KB - Virtual size: 30KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 17KB - Virtual size: 16KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 14KB - Virtual size: 15KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 480B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 240B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ