General
-
Target
ConsoleApplication1.obf.exe
-
Size
424KB
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MD5
9764ad0ba2c14105efa6cb7462beda58
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SHA1
40c717e44479d0460a2b1789dbaf61a648b038a9
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SHA256
52770ec8f2e84b3e264870a7533286670e61bff2c8932f0cd6cc1f60af3323ae
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SHA512
d5a5313f377d17a21ec485b6e8ef6ccc02864b4cda1e8c4d47c790a60e3f0430a8fdf482fcfe116b52fb063f298abd594ff9167c68ffda23f0c69fb84d299309
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SSDEEP
6144:hY2cJFqVZloZM9rIkd8g+EtXHkv/iD4ZZACl98e1mbiB8BOaedF6IxI:OpJFqVroZOL+EP8h7nuMawF6
Malware Config
Signatures
-
Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource ConsoleApplication1.obf.exe
Files
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ConsoleApplication1.obf.exe.exe windows:6 windows x64
3fec6cb45ca7d417f75bf0a60e98dcb6
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
GetFileAttributesW
Sleep
DeleteFileA
CloseHandle
CreateProcessA
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlCaptureContext
msvcp140
?in@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?out@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
??0?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_J@Z
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ
??1?$basic_ostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?write@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@PEBD_J@Z
??7ios_base@std@@QEBA_NXZ
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXXZ
??Bid@locale@std@@QEAA_KXZ
?uncaught_exception@std@@YA_NXZ
?_Random_device@std@@YAIXZ
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?_Lock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?_Unlock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?uflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?setbuf@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAPEAV12@PEAD_J@Z
?sync@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?imbue@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAXAEBVlocale@2@@Z
?good@ios_base@std@@QEBA_NXZ
??1_Lockit@std@@QEAA@XZ
??0_Lockit@std@@QEAA@H@Z
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?_Xlength_error@std@@YAXPEBD@Z
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?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
?always_noconv@codecvt_base@std@@QEBA_NXZ
vcruntime140_1
__CxxFrameHandler4
vcruntime140
__current_exception
_CxxThrowException
__current_exception_context
__std_terminate
__std_exception_copy
__std_exception_destroy
memcpy
__C_specific_handler
memset
memmove
api-ms-win-crt-stdio-l1-1-0
ungetc
setvbuf
fgetpos
fwrite
_fseeki64
fsetpos
fread
fgetc
fclose
fflush
fputc
_set_fmode
__p__commode
_get_stream_buffer_pointers
api-ms-win-crt-filesystem-l1-1-0
_lock_file
_unlock_file
api-ms-win-crt-runtime-l1-1-0
_register_thread_local_exe_atexit_callback
exit
_initterm
_seh_filter_exe
_initialize_onexit_table
_c_exit
_crt_atexit
_get_narrow_winmain_command_line
terminate
_set_app_type
_initialize_narrow_environment
_exit
_initterm_e
_cexit
_register_onexit_function
_invalid_parameter_noinfo_noreturn
_configure_narrow_argv
api-ms-win-crt-heap-l1-1-0
_callnewh
malloc
free
_set_new_mode
api-ms-win-crt-math-l1-1-0
__setusermatherr
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
Sections
.text Size: 18KB - Virtual size: 17KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 17KB - Virtual size: 17KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 239KB - Virtual size: 240KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 2KB - Virtual size: 1KB
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: 196B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.0Dev Size: 124KB - Virtual size: 124KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ