SubZeroFree[.]exe

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General

Target

SubZeroFree.exe
Size

143KB
MD5

4349bb838f0679d910934f4b8b25428e
SHA1

8ba411f82660df85b538a151822e98840995b99a
SHA256

bea438bc2665d1e4cde7d9337315256581513aeca4aab904d83253267c2c012a
SHA512

3838f90e98fb7a2946729283c5042b040297cb74b3f4f4ab033f79dc0f13b242806a3f06dc67f2d71cda8152bd875840c40ac8dc4cf7fae2610b926eb0abb9f8
SSDEEP

3072:oxd3czWRmRnKoBtVAmTbW/TzSwzdT/bfGnc:of3cqMumHU1TDfGc

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
SubZeroFree.exe

Files

SubZeroFree.exe
.exe windows:6 windows x64 arch:x64

3756746fa1e022f170911354baa9cb80

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

Sleep
GetCurrentProcess
VirtualAlloc
VirtualFree
FreeLibrary
GetProcAddress
LoadLibraryExA
Beep
LoadLibraryW
SetConsoleTextAttribute
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
TerminateProcess
GetModuleHandleW
IsProcessorFeaturePresent
IsDebuggerPresent
GetStdHandle
LoadLibraryA
RtlCaptureContext
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
SleepConditionVariableSRW
WakeAllConditionVariable
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
InitializeSListHead

user32

UnhookWindowsHookEx
SetWindowsHookExA
GetWindowThreadProcessId
FindWindowA
BlockInput
MessageBoxA

msvcp140

?good@ios_base@std@@QEBA_NXZ
?flags@ios_base@std@@QEBAHXZ
?width@ios_base@std@@QEBA_JXZ
?width@ios_base@std@@QEAA_J_J@Z
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?tie@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_ostream@DU?$char_traits@D@std@@@2@XZ
?rdbuf@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_streambuf@DU?$char_traits@D@std@@@2@XZ
?fill@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADXZ
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@K@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@PEBX@Z
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@D@Z
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
_Cnd_do_broadcast_at_thread_exit
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?_Throw_Cpp_error@std@@YAXH@Z
?uncaught_exceptions@std@@YAHXZ
_Xtime_get_ticks
_Query_perf_counter
_Query_perf_frequency
_Thrd_detach
_Thrd_sleep

ntdll

RtlImageNtHeader

vcruntime140

__current_exception_context
__current_exception
memcpy
memset
__std_terminate
__std_exception_copy
__std_exception_destroy
_CxxThrowException
__C_specific_handler

vcruntime140_1

__CxxFrameHandler4

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

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

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

_set_new_mode
free
_callnewh
malloc

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

strcpy_s

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

__p__commode
__stdio_common_vfprintf
__acrt_iob_func
_set_fmode

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

remove

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

__setusermatherr

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

_configthreadlocale

Sections

.text
Size: 38KB - Virtual size: 37KB

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: 90KB - Virtual size: 97KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 488B

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

3756746fa1e022f170911354baa9cb80

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

msvcp140

ntdll

vcruntime140

vcruntime140_1

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

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

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

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

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

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

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

Sections

.text Size: 38KB - Virtual size: 37KB

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

.data Size: 90KB - Virtual size: 97KB

.pdata Size: 1KB - Virtual size: 1KB

.rsrc Size: 512B - Virtual size: 488B

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

.text
Size: 38KB - Virtual size: 37KB

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

.data
Size: 90KB - Virtual size: 97KB

.pdata
Size: 1KB - Virtual size: 1KB

.rsrc
Size: 512B - Virtual size: 488B

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