FSST[.]exe | Triage

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General

Target

FSST.exe
Size

40KB
MD5

102d1935bebcb0b298e7c4b1c0c3a24a
SHA1

50c53731e72905d99e1a9d681dc3d14df32ad291
SHA256

a80e56c00d46761c5dddf5c1324a6371de99d77d4038c0b51101a6a338c3cd5f
SHA512

263e2d4b9da4b96bf0b1220ada1ed76f8217a9b49bd16344c5036f24d522286d55f7417fcd1c4982bffc5568bea04620060aee7234dac6ddd8691f021a078b39
SSDEEP

768:lfava6CHkhlU7TCGpXTfJp3QztrE3mBag0:BQwHkhlU7TCGpXTfJp3Qhxsg0

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
FSST.exe

Files

FSST.exe
.exe windows:6 windows x64 arch:x64

Password: rea

20b9aeed9229e0148baf37ee3263bf3a

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

PDB Paths

C:\Users\timmi\Documents\repos\FedSecTempSpoofer\x64\Release\FSST.pdb

Imports

kernel32

SetConsoleTextAttribute
GetStdHandle
DeviceIoControl
CreateFileW
CloseHandle
GetLocalTime
GetSystemTime
SetConsoleTitleA
Sleep
GetConsoleWindow
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetModuleHandleW
RtlCaptureContext

user32

SetWindowLongW
DrawMenuBar
SetLayeredWindowAttributes
DeleteMenu
GetSystemMenu
GetWindowLongW

msvcp140

?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@D@Z
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?good@ios_base@std@@QEBA_NXZ
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?uncaught_exception@std@@YA_NXZ
?_Xlength_error@std@@YAXPEBD@Z
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z

urlmon

URLDownloadToFileW

vcruntime140_1

__CxxFrameHandler4

vcruntime140

__std_exception_copy
memcpy
__std_terminate
__C_specific_handler
memset
__current_exception_context
__current_exception
__std_exception_destroy
_CxxThrowException

api-ms-win-crt-stdio-l1-1-0

__acrt_iob_func
__p__commode
_set_fmode
__stdio_common_vfprintf

api-ms-win-crt-runtime-l1-1-0

_initialize_onexit_table
_initterm_e
exit
terminate
system
_initterm
_get_initial_narrow_environment
__p___argc
_c_exit
_cexit
__p___argv
_configure_narrow_argv
_register_thread_local_exe_atexit_callback
_set_app_type
_seh_filter_exe
_crt_atexit
_exit
_register_onexit_function
_initialize_narrow_environment
_invalid_parameter_noinfo_noreturn

api-ms-win-crt-conio-l1-1-0

_getch

api-ms-win-crt-filesystem-l1-1-0

_mkdir

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: 10KB - Virtual size: 9KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 11KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 1024B - Virtual size: 660B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 15KB - Virtual size: 15KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 96B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Password: rea

20b9aeed9229e0148baf37ee3263bf3a

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

user32

msvcp140

urlmon

vcruntime140_1

vcruntime140

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-conio-l1-1-0

api-ms-win-crt-filesystem-l1-1-0

api-ms-win-crt-heap-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-locale-l1-1-0

Sections

.text Size: 10KB - Virtual size: 9KB

.rdata Size: 11KB - Virtual size: 11KB

.data Size: 512B - Virtual size: 1KB

.pdata Size: 1024B - Virtual size: 660B

.rsrc Size: 15KB - Virtual size: 15KB

.reloc Size: 512B - Virtual size: 96B

.text
Size: 10KB - Virtual size: 9KB

.rdata
Size: 11KB - Virtual size: 11KB

.data
Size: 512B - Virtual size: 1KB

.pdata
Size: 1024B - Virtual size: 660B

.rsrc
Size: 15KB - Virtual size: 15KB

.reloc
Size: 512B - Virtual size: 96B