update[.]exe | Triage

Sharing

Copy URL Twitter E-mail

General

Target

update.exe
Size

16KB
MD5

5b5489df5d9604797664758208025552
SHA1

db45c975ae23fea16e4e399fbebfa2db802572f6
SHA256

6aa142895456d666b3dfad4ddd00296a6719787114f9b28fda83147cdb28c513
SHA512

29a5d8ae3c939830c404666b8a61e8d1adedb32aa722b0df17d6bd9c3d4dd1db029721f943b1b1688b0d63f560f0b6e825edaa4c06e9820b7188a33143aa5f1b
SSDEEP

384:PksAAuvsuPKAVWZ9hAYUb3CHXPMEjVVV/QBOIjLbm:PCKg/rb3NCVV/yb

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
update.exe

Files

update.exe
.exe windows:6 windows x86 arch:x86

9577ed9a21e32789d25bcadd09703b13

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

advapi32

CryptReleaseContext
CryptSetKeyParam
CheckTokenMembership
FreeSid
CryptDestroyHash
CryptHashData
CryptDeriveKey
CryptCreateHash
AllocateAndInitializeSid
CryptGenRandom
CryptEncrypt
CryptAcquireContextA
CryptDestroyKey

shell32

ShellExecuteExA
SHGetKnownFolderPath
ShellExecuteA

ole32

CoTaskMemFree

wininet

InternetConnectA
HttpSendRequestA
InternetCloseHandle
InternetOpenA
HttpOpenRequestA

kernel32

IsDebuggerPresent
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
IsProcessorFeaturePresent
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
GetModuleFileNameA
CloseThreadpool
CreateThreadpool
FindFirstFileA
GetDriveTypeA
FindNextFileA
FindClose
CloseThreadpoolCleanupGroup
CloseThreadpoolCleanupGroupMembers
Sleep
GetLastError
CreateThreadpoolCleanupGroup
SubmitThreadpoolWork
CreateThreadpoolWork
GetModuleHandleW

vcruntime140

_except_handler4_common
__current_exception
strstr
__current_exception_context
strrchr
memset

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

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

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

rand
srand

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

fopen
fwrite
__p__commode
__acrt_iob_func
fclose
fread
feof
_set_fmode
__stdio_common_vsprintf
__stdio_common_vfprintf

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

_stat64i32
remove

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

_stricmp
_strdup

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

wcstombs

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

_time64

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

malloc
_set_new_mode
free

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

__setusermatherr

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

_configthreadlocale

Sections

.text
Size: 8KB - Virtual size: 8KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1024B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 1024B - Virtual size: 784B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

9577ed9a21e32789d25bcadd09703b13

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

shell32

ole32

wininet

kernel32

vcruntime140

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

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

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

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

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

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

api-ms-win-crt-time-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: 8KB - Virtual size: 8KB

.rdata Size: 5KB - Virtual size: 4KB

.data Size: 1024B - Virtual size: 1KB

.reloc Size: 1024B - Virtual size: 784B

.text
Size: 8KB - Virtual size: 8KB

.rdata
Size: 5KB - Virtual size: 4KB

.data
Size: 1024B - Virtual size: 1KB

.reloc
Size: 1024B - Virtual size: 784B