downloader[.]exe

Sharing

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General

Target

downloader.exe
Size

20KB
MD5

6edda066423ebdc1a17a3888c7287745
SHA1

7c22e0cd2d94bc936c94d2a621a39121defffba6
SHA256

299a7d81e3069a1908100a255cb3c5f4eed159b4210d4a414c9a09464eda8630
SHA512

88460a4fe6ec31605e06819f199d937132403f05517ac0f957f6ae51eb24b3ec7f969081e709f3bb287ee68e5ef7c6522c67cdbfa1fe6a0c2d8a9a9225f4d786
SSDEEP

384:CkbBx4ttuRVA1R02EuCyGbbuVEShHCs3BWi:COAEt7HyEShHF3BW

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
downloader.exe

Files

downloader.exe
.exe windows:6 windows x64 arch:x64

a7da228f0facc109dd9d01826c400622

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
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetModuleHandleW
RtlCaptureContext

shell32

ShellExecuteW

msvcp140

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

urlmon

URLDownloadToFileW

vcruntime140_1

__CxxFrameHandler4

vcruntime140

_CxxThrowException
__C_specific_handler
__std_terminate
__std_exception_destroy
memcmp
memcpy
__current_exception_context
__std_exception_copy
memset
__current_exception
memchr

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

_getch

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

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

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

malloc
_callnewh
_set_new_mode
free

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

Sections

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 7KB - Virtual size: 7KB

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: 512B - Virtual size: 480B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 88B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

a7da228f0facc109dd9d01826c400622

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

shell32

msvcp140

urlmon

vcruntime140_1

vcruntime140

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

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

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

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

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

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

Sections

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

.rdata Size: 7KB - Virtual size: 7KB

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

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

.rsrc Size: 512B - Virtual size: 480B

.reloc Size: 512B - Virtual size: 88B

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

.rdata
Size: 7KB - Virtual size: 7KB

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

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

.rsrc
Size: 512B - Virtual size: 480B

.reloc
Size: 512B - Virtual size: 88B