updater[.]exe | Triage

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General

Target

updater.exe
Size

470KB
MD5

da23b66657226943d2a531f998461ec9
SHA1

bc703d43b7a4db33b4688560d96a28ac79b0e6f4
SHA256

1c51578035c14600c6590f6aba10cc78bb2920f83a7f6d190b4f90bab40275df
SHA512

b54d8b3ab6cb5d64db0004c37be2e59816506549d8cf36140ae3800ea5af682fbc52709f6fef84bae5823fed52b8f48766d251c01cc9dbb87f2deb775c612560
SSDEEP

6144:CYR4sHeOGk0vKD8WS8QI+4MULo1rc/6kZQBa5chgeJRhpwj2asqHAWJg3PfcKrKJ:CyKDk0vI8WSd4MULzvvJAdGy

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
updater.exe

Files

updater.exe
.exe windows x64

c301646f26bcbd204040fd463f0c49aa

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

nss3

ATOB_AsciiToData
BTOA_DataToAscii
CERT_DestroyCertificate
CERT_ExtractPublicKey
CERT_GetDefaultCertDB
CERT_NewTempCertificate
NSS_Initialize
NSS_NoDB_Init
NSS_Shutdown
PK11_FindCertFromNickname
PK11_FindKeyByAnyCert
PK11_GetTokenName
PK11_ProtectedAuthenticationPath
PK11_SetPasswordFunc
PK11_SignatureLen
PL_strdup
PORT_Free
PORT_Strdup
PORT_ZAlloc
PR_Close
PR_ErrorToName
PR_GetError
PR_GetSpecialFD
PR_Open
PR_Read
PR_fprintf
SECITEM_FreeItem
SECKEY_DestroyPrivateKey
SECKEY_DestroyPublicKey
SECKEY_PublicKeyStrength
SGN_Begin
SGN_DestroyContext
SGN_End
SGN_NewContext
SGN_Update
VFY_Begin
VFY_CreateContext
VFY_DestroyContext
VFY_EndWithSignature
VFY_Update

gdi32

SelectObject

advapi32

AdjustTokenPrivileges
CreateProcessAsUserW
CryptAcquireContextA
CryptGenRandom
CryptReleaseContext
GetTokenInformation
LookupPrivilegeValueA
OpenProcessToken
RegCloseKey
RegCreateKeyExW
RegGetValueW
RegSetValueExW

shlwapi

PathAppendW
PathCanonicalizeW
PathCommonPrefixW
PathIsUNCServerShareW
PathRemoveFileSpecW
PathStripPathW
PathStripToRootW

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

_wtoi64
strtol
wcstol

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

__p__environ
__p__wenviron
_putenv
getenv

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

_fstat64
_mkdir
_stat64
_waccess
_wchdir
_wchmod
_wmkdir
_wremove
_wrename
_wrmdir
_wstat64
remove

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

_aligned_free
_aligned_malloc
_set_new_mode
calloc
free
malloc
realloc

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

__setusermatherr
_fdopen

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

__C_specific_handler
memchr
memcpy
memmove
strchr
strrchr
wcschr
wcsrchr
wcsstr

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

__p___argc
__p___argv
__p___wargv
__p__wcmdln
_assert
_beginthreadex
_cexit
_configure_narrow_argv
_configure_wide_argv
_crt_at_quick_exit
_crt_atexit
_errno
_exit
_initialize_narrow_environment
_initialize_wide_environment
_initterm
_register_thread_local_exe_atexit_callback
_set_app_type
_set_invalid_parameter_handler
_wperror
abort
exit
perror
signal

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

__acrt_iob_func
__p__commode
__p__fmode
__stdio_common_vfprintf
__stdio_common_vfwprintf
__stdio_common_vsprintf
__stdio_common_vswprintf
_close
_fileno
_fseeki64
_ftelli64
_get_osfhandle
_isatty
_open
_wfopen
_wfopen_s
_write
fclose
feof
ferror
fflush
fgets
fopen
fputc
fputs
fread
fseek
ftell
fwrite

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

_strdup
_wcsdup
_wcsicmp
_wcsnicmp
islower
isxdigit
memset
strcmp
strcpy
strlen
strncmp
strncpy
strpbrk
strtok
wcscat
wcscmp
wcscpy
wcslen
wcsncat
wcsncmp
wcsncpy
wcspbrk
wcstok_s

user32

CopyRect
DialogBoxParamW
DrawTextW
EndDialog
GetClientRect
GetDC
GetDesktopWindow
GetDlgItem
GetParent
GetWindowLongPtrW
GetWindowRect
LoadIconW
OffsetRect
ReleaseDC
ScreenToClient
SendMessageW
SetTimer
SetWindowLongPtrW
SetWindowPos
SetWindowTextW
WaitForInputIdle

kernel32

AcquireSRWLockExclusive
ActivateActCtx
CloseHandle
CopyFileW
CreateActCtxW
CreateFileW
CreateProcessW
CreateToolhelp32Snapshot
DeactivateActCtx
DeleteCriticalSection
DeviceIoControl
EnterCriticalSection
FindClose
FindFirstFileW
FindNextFileW
FlsAlloc
FlsGetValue
FlsSetValue
FormatMessageW
FreeLibrary
GetCurrentProcess
GetCurrentThreadId
GetFileAttributesW
GetFullPathNameW
GetLastError
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleW
GetPrivateProfileStringW
GetProcAddress
GetStartupInfoW
GetSystemDirectoryW
GetSystemTimeAsFileTime
GetThreadId
GetTickCount
InitOnceExecuteOnce
InitializeCriticalSection
LeaveCriticalSection
LoadLibraryA
LoadLibraryExW
LoadLibraryW
LocalAlloc
LocalFree
LockFile
MultiByteToWideChar
OpenProcess
Process32FirstW
Process32NextW
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReleaseSRWLockExclusive
RtlLookupFunctionEntry
RtlRestoreContext
RtlUnwindEx
RtlVirtualUnwind
SetDllDirectoryW
SetEndOfFile
SetFilePointer
SetLastError
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SwitchToThread
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
TryEnterCriticalSection
UnlockFile
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte

shell32

SHGetKnownFolderPath

ole32

CoTaskMemFree

rpcrt4

RpcStringFreeW
UuidCreate
UuidToStringW

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

_getch

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

__daylight
__timezone
__tzname
_tzset

Sections

.text
Size: 260KB - Virtual size: 260KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 99KB - Virtual size: 99KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.buildid
Size: 512B - Virtual size: 162B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 96KB - Virtual size: 95KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

c301646f26bcbd204040fd463f0c49aa

Headers

DLL Characteristics

File Characteristics

Imports

nss3

gdi32

advapi32

shlwapi

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

api-ms-win-crt-environment-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-private-l1-1-0

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

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

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

user32

kernel32

shell32

ole32

rpcrt4

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

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

Sections

.text Size: 260KB - Virtual size: 260KB

.rdata Size: 99KB - Virtual size: 99KB

.buildid Size: 512B - Virtual size: 162B

.data Size: 2KB - Virtual size: 9KB

.pdata Size: 6KB - Virtual size: 6KB

.tls Size: 512B - Virtual size: 16B

.rsrc Size: 96KB - Virtual size: 95KB

.reloc Size: 3KB - Virtual size: 3KB

.text
Size: 260KB - Virtual size: 260KB

.rdata
Size: 99KB - Virtual size: 99KB

.buildid
Size: 512B - Virtual size: 162B

.data
Size: 2KB - Virtual size: 9KB

.pdata
Size: 6KB - Virtual size: 6KB

.tls
Size: 512B - Virtual size: 16B

.rsrc
Size: 96KB - Virtual size: 95KB

.reloc
Size: 3KB - Virtual size: 3KB