wechsen[.]dll | Triage™

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General

Target
wechsen.dll
Size 687KB
Sample260808-dwdrdagq41
SHA256 073f9eddc3b2dcb0a2696253b2b47c3362f5d25fda95b36f9b6616a28524f079
MD5 fd8fbe0d63f18713ec51321b0afe2bea
SHA1 f58861a0cf7e4331144fe46236380ff90915d969
SHA512 15c1509427c068852d3c08c018fbb05cc579ac6a5553d6771df2d29eaa900e4bcb34b1e2d2641124a7cf511d10b5151d3614a438642911d8e9041f9bcf330840
SSDEEP 6144:xSM2dQdL5floW31w88Qx/N35LCELkeO+OxEHavRvNzWgGJ2UreXOee7whkvtkeo+:xTn3ln/SEL+dzzXUqTe7HvtkevgqL
TLSH
T176E47C15A3E811E8F1B3DA76DA725602E6B27C850B70F5AF03E0499D1F3B760963B712
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Untrusted Codesign Signers 1 IoCs

Codesigned file was signed by an untrusted entity.

resource
wechsen.dll

File Explorer

wechsen.dll

.dll 687KB

wechsen.dll

IMPHASH 67fc4f887622c07ce4482ceec0245882
SHA256 073f9eddc3b2dcb0a2696253b2b47c3362f5d25fda95b36f9b6616a28524f079
MD5 fd8fbe0d63f18713ec51321b0afe2bea
SHA1 f58861a0cf7e4331144fe46236380ff90915d969
SHA512 15c1509427c068852d3c08c018fbb05cc579ac6a5553d6771df2d29eaa900e4bcb34b1e2d2641124a7cf511d10b5151d3614a438642911d8e9041f9bcf330840
SSDEEP 6144:xSM2dQdL5floW31w88Qx/N35LCELkeO+OxEHavRvNzWgGJ2UreXOee7whkvtkeo+:xTn3ln/SEL+dzzXUqTe7HvtkevgqL
TLSH
T176E47C15A3E811E8F1B3DA76DA725602E6B27C850B70F5AF03E0499D1F3B760963B712
MD5 SHA1 SHA512 SSDEEP TLSH

Untrusted Codesign Signers

Codesigned file was signed by an untrusted entity.

PE Signature issue

Digest

26:72:96:3f:7d:6e:05:e0:df:1f:c2:37:8b:ab:1f:85:6a:e4:a6:27:c2:31:5a:85:c0:07:55:58:ff:91:40:8d

Digest Algorithm

sha256

PE Digests Matches

Trusted

Not trusted

Signing Certificate

CN=福建六壬网安股份有限公司,OU=IT,O=福建六壬网安股份有限公司,L=福州,ST=福建,C=CN

Chains

Aug 2, 2026

CN=福建六壬网安股份有限公司,OU=IT,O=福建六壬网安股份有限公司,L=福州,ST=福建,C=CN

Subject

CN=Thawte Code Signing CA - G2,O=Thawte\, Inc.,C=US

Serial Number

47:97:4d:78:73:a5:bc:ab:0d:2f:b3:70:19:2f:ce:5e

Issuer

Key Usages

KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageClientAuth, ExtKeyUsageCodeSigning

Revocation Status

Not revoked

Timespan

Feb 8, 2010 - Feb 7, 2020

Subject

CN=福建六壬网安股份有限公司,OU=IT,O=福建六壬网安股份有限公司,L=福州,ST=福建,C=CN

Serial Number

36:ea:f6:1d:c3:95:f6:30:41:f4:24:7d:ae:76:ab:7e

Issuer

CN=Thawte Code Signing CA - G2,O=Thawte\, Inc.,C=US

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageCodeSigning

Revocation Status

Not revoked

Timespan

Sep 9, 2016 - Aug 12, 2018

Subject

CN=DigiCert SHA256 RSA4096 Timestamp Responder 2025 1,O=DigiCert\, Inc.,C=US

Serial Number

0a:80:ef:18:4b:8d:f1:05:82:d1:c4:76:a7:95:74:68

Issuer

CN=DigiCert Trusted G4 TimeStamping RSA4096 SHA256 2025 CA1,O=DigiCert\, Inc.,C=US

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

Jun 4, 2025 - Sep 3, 2036

Subject

CN=DigiCert Trusted G4 TimeStamping RSA4096 SHA256 2025 CA1,O=DigiCert\, Inc.,C=US

Serial Number

0d:c7:ac:57:05:ff:21:99:2e:40:43:22:0c:3a:49:86

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

May 7, 2025 - Jan 14, 2038

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Serial Number

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Revocation Status

Not revoked

Timespan

Aug 1, 2022 - Nov 9, 2031

Minor OS version

Major OS version

Entry point

300676

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_DLL

PDB paths

C:\Users\yigit\Desktop\dvn\project\x64\Release\wechsen.pdb

kernel32

VirtualQuery GetModuleHandleA GetProcAddress LoadLibraryA CreateFileW GetFileAttributesW WriteFile CloseHandle QueryPerformanceCounter QueryPerformanceFrequency Sleep GetLocalTime GetTickCount VirtualProtect WideCharToMultiByte SetEndOfFile WriteConsoleW HeapSize SetStdHandle GetProcessHeap FreeEnvironmentStringsW GetEnvironmentStringsW GetCommandLineW GetCommandLineA GetOEMCP GetACP IsValidCodePage GetTickCount64 VirtualAlloc HeapReAlloc ReadConsoleW SetFilePointerEx GetFileSizeEx ReadFile GetConsoleMode GetConsoleOutputCP LocalFree FormatMessageA GetLocaleInfoEx GetCurrentThreadId ReleaseSRWLockExclusive AcquireSRWLockExclusive TryAcquireSRWLockExclusive CreateDirectoryW FindClose FindFirstFileW FindFirstFileExW FindNextFileW GetFileAttributesExW AreFileApisANSI GetLastError GetModuleHandleW GetFileInformationByHandleEx MultiByteToWideChar GetStringTypeW InitializeCriticalSectionEx GetSystemTimeAsFileTime WakeAllConditionVariable EnterCriticalSection LeaveCriticalSection DeleteCriticalSection EncodePointer DecodePointer LCMapStringEx GetCPInfo RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind IsDebuggerPresent UnhandledExceptionFilter SetUnhandledExceptionFilter GetStartupInfoW IsProcessorFeaturePresent GetCurrentProcessId InitializeSListHead GetCurrentProcess TerminateProcess RtlPcToFileHeader RaiseException RtlUnwindEx InterlockedFlushSList SetLastError InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree FreeLibrary LoadLibraryExW CreateThread ExitThread FreeLibraryAndExitThread GetModuleHandleExW ExitProcess GetModuleFileNameW HeapAlloc HeapFree FlsAlloc FlsGetValue FlsSetValue FlsFree LCMapStringW GetLocaleInfoW IsValidLocale GetUserDefaultLCID EnumSystemLocalesW GetStdHandle GetFileType FlushFileBuffers RtlUnwind

user32

GetAsyncKeyState GetKeyboardState MessageBoxW GetActiveWindow CallNextHookEx GetKeyNameTextA ScreenToClient GetCursorPos GetSystemMetrics MapVirtualKeyW ToUnicode

advapi32

GetUserNameW

shell32

SHGetFolderPathA

wininet

InternetCloseHandle InternetOpenUrlA InternetReadFile InternetOpenA

winmm

PlaySoundW

Name

.text

Size

475KB

Virtual Size

474KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

172KB

Virtual Size

171KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

9KB

Virtual Size

442KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

17KB

Virtual Size

17KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.fptable

Size

512B

Virtual Size

256B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

512B

Virtual Size

248B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

3KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

wechsen.dll

PE Signature issue

kernel32

user32

advapi32

shell32

wininet

winmm

generic