Syntex Spoofer[.]exe

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General

Target
Syntex Spoofer.exe
Size 160KB
Sample260605-3mlhasft8s
SHA256 b512c3290c875427e4a453d544002536e49e72f5b0c0cd9c3806af172205e545
MD5 f3357978ffa6ab2da99c597193771942
SHA1 8a26d6383deac6db60e2d457a95f40cfbc3dbd14
SHA512 26f0467f2d15ad6a386e40727ead7f7aad2f2ff5b47a27d0bad94f938f7c33042a1384e4437d1a6b5fc80d93a19254f9903a80e417e11bd22c744b04916d65c2
SSDEEP 3072:j5vnr5Tbx829UOeKnn2LFzZBp13u36wKp4zULCWods096hxpfSo:jBKjK2LFzZNfIULLD0chbZ
TLSH
T191F3390773A911F8D1BBE23999A24906F7B63826473197CF2350427A0F777E0AE79721
MD5 SHA1 SHA512 SSDEEP TLSH

Score

5^/10

Malware Config

Signatures

Codesign digest Mismatch 1 IoCs

File was altered after it was signed.

resource
Syntex Spoofer.exe

File Explorer

Syntex Spoofer.exe

.exe 160KB

Syntex Spoofer.exe

IMPHASH a8308de57fce070f4cb88c7f43bf4b27
SHA256 b512c3290c875427e4a453d544002536e49e72f5b0c0cd9c3806af172205e545
MD5 f3357978ffa6ab2da99c597193771942
SHA1 8a26d6383deac6db60e2d457a95f40cfbc3dbd14
SHA512 26f0467f2d15ad6a386e40727ead7f7aad2f2ff5b47a27d0bad94f938f7c33042a1384e4437d1a6b5fc80d93a19254f9903a80e417e11bd22c744b04916d65c2
SSDEEP 3072:j5vnr5Tbx829UOeKnn2LFzZBp13u36wKp4zULCWods096hxpfSo:jBKjK2LFzZNfIULLD0chbZ
TLSH
T191F3390773A911F8D1BBE23999A24906F7B63826473197CF2350427A0F777E0AE79721
MD5 SHA1 SHA512 SSDEEP TLSH

Codesign digest Mismatch

File was altered after it was signed.

PE Signature issue

Digest

b7:fa:80:e0:8c:ab:66:97:cd:b6:d4:24:1e:be:48:9f:b3:45:5b:78:58:5d:fe:4e:90:9d:6b:aa:03:6c:a5:b0

Digest Algorithm

sha256

PE Digests Matches

Not matched

Trusted

Signing Certificate

CN=Open Source Developer\, Marcin Szeniak,O=Open Source Developer,L=Siennica Nadolna,ST=lubelskie,C=PL

Chains

Feb 20, 2025

CN=Open Source Developer\, Marcin Szeniak,O=Open Source Developer,L=Siennica Nadolna,ST=lubelskie,C=PL

CN=Certum Code Signing 2021 CA,O=Asseco Data Systems S.A.,C=PL

CN=Certum Trusted Network CA 2,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

CN=Open Source Developer\, Marcin Szeniak,O=Open Source Developer,L=Siennica Nadolna,ST=lubelskie,C=PL

CN=Certum Code Signing 2021 CA,O=Asseco Data Systems S.A.,C=PL

CN=Certum Trusted Network CA 2,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

CN=Certum Trusted Network CA,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Subject

CN=Certum Code Signing 2021 CA,O=Asseco Data Systems S.A.,C=PL

Serial Number

99:a3:80:0a:26:55:3b:65:ab:dc:6e:84:a6:b3:ea:39

Issuer

CN=Certum Trusted Network CA 2,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Key Usages

KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageCodeSigning

Revocation Status

Not revoked

Timespan

May 19, 2021 - May 18, 2036

Subject

CN=Open Source Developer\, Marcin Szeniak,O=Open Source Developer,L=Siennica Nadolna,ST=lubelskie,C=PL

Serial Number

6a:f8:97:e1:32:47:59:5d:26:ab:6d:cd:79:41:05:44

Issuer

CN=Certum Code Signing 2021 CA,O=Asseco Data Systems S.A.,C=PL

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageCodeSigning

Revocation Status

Not revoked

Timespan

May 10, 2024 - May 10, 2025

Subject

CN=Certum Timestamp 2025,O=Asseco Data Systems S.A.,C=PL

Serial Number

9e:9c:04:f6:55:a8:b4:a7:02:6d:49:8c:6c:78:8d:aa

Issuer

CN=Certum Timestamping 2021 CA,O=Asseco Data Systems S.A.,C=PL

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

Jan 9, 2025 - Jan 7, 2036

Subject

CN=Certum Timestamping 2021 CA,O=Asseco Data Systems S.A.,C=PL

Serial Number

e7:ff:69:c7:3b:35:ce:4b:91:26:d8:74:7c:68:a5:87

Issuer

CN=Certum Trusted Network CA 2,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Key Usages

KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

May 19, 2021 - May 18, 2036

Subject

CN=Certum Trusted Network CA 2,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Serial Number

1b:b5:8f:25:2a:df:23:00:49:28:c9:ae:3d:7e:ed:27

Issuer

CN=Certum Trusted Network CA,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Key Usages

KeyUsageCertSign, KeyUsageCRLSign

Revocation Status

Not revoked

Timespan

May 31, 2021 - Sep 17, 2029

Minor OS version

Major OS version

Entry point

82000

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_GUARD_CF IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

D:\a\_work\1\s\artifacts\obj\win-x64.Release\corehost\apphost\standalone\apphost.pdb

kernel32

FindNextFileW GetCurrentProcess GetModuleHandleExW GetModuleFileNameW LeaveCriticalSection GetEnvironmentVariableW FindClose MultiByteToWideChar GetLastError GetFileAttributesExW GetFullPathNameW GetProcAddress DeleteCriticalSection WideCharToMultiByte IsWow64Process LoadLibraryExW FreeLibrary TlsFree TlsSetValue TlsGetValue TlsAlloc EnterCriticalSection FindFirstFileExW OutputDebugStringW LoadLibraryA GetModuleHandleW InitializeCriticalSectionAndSpinCount SetLastError RaiseException RtlPcToFileHeader RtlUnwindEx InitializeSListHead GetCurrentProcessId IsDebuggerPresent IsProcessorFeaturePresent TerminateProcess SetUnhandledExceptionFilter UnhandledExceptionFilter RtlVirtualUnwind RtlLookupFunctionEntry RtlCaptureContext GetStringTypeW SwitchToThread GetCurrentThreadId InitializeCriticalSectionEx EncodePointer DecodePointer LCMapStringEx QueryPerformanceCounter GetSystemTimeAsFileTime

user32

MessageBoxW

shell32

ShellExecuteW

advapi32

RegOpenKeyExW RegGetValueW DeregisterEventSource RegisterEventSourceW ReportEventW RegCloseKey

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

__p___argc __p___wargv _initterm _get_initial_wide_environment _initialize_wide_environment _errno _configure_wide_argv _invalid_parameter_noinfo_noreturn _set_app_type _seh_filter_exe _c_exit exit _cexit _register_thread_local_exe_atexit_callback _crt_atexit _exit _initterm_e abort _register_onexit_function _initialize_onexit_table terminate

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

__p__commode __stdio_common_vsprintf_s setvbuf _wfopen _set_fmode __stdio_common_vswprintf __acrt_iob_func fputwc fputws __stdio_common_vfwprintf fflush

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

_callnewh _set_new_mode free malloc calloc

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

wcsnlen strcpy_s _wcsdup strcspn wcsncmp toupper

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

_wtoi wcstoul

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

__pctype_func _unlock_locales localeconv _lock_locales ___lc_codepage_func ___mb_cur_max_func _configthreadlocale setlocale ___lc_locale_name_func

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

__setusermatherr frexp

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

_gmtime64_s wcsftime _time64

Name

.text

Size

97KB

Virtual Size

97KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

38KB

Virtual Size

37KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

2KB

Virtual Size

6KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

5KB

Virtual Size

5KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

_RDATA

Size

512B

Virtual Size

244B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

1024B

Virtual Size

792B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Name

.rsrc

Size

4KB

Virtual Size

4KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

Syntex Spoofer.exe

PE Signature issue

kernel32

user32

shell32

advapi32

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

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

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

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

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

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

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

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

generic