MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4131c88b0dea6ba45cd633eed383240d41620e4467afa4e956d6c2dfafd58c1c. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
Threat unknown
Vendor detections: 8
| SHA256 hash: | 4131c88b0dea6ba45cd633eed383240d41620e4467afa4e956d6c2dfafd58c1c |
|---|---|
| SHA3-384 hash: | 1a2583cf87511b19020580cb360c53d479adb3048b88ef5b5a6727c7e682d372b30849128826b0079d1fc74e881d5e61 |
| SHA1 hash: | b9b0970281db5f279ad59b2ee7e379312ceec64e |
| MD5 hash: | 4376f6e050ebd456f6640dc0ea408add |
| humanhash: | bulldog-cup-vermont-lemon |
| File name: | WindowsCodecs.dll |
| Download: | download sample |
| File size: | 28'672 bytes |
| First seen: | 2026-09-25 04:06:37 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 3da1e1538edcd467227c7f51667e1b54 |
| ssdeep | 384:SxpgmFsfZI1nDJXd3zgnvxmU5XX0Fy8CGDxAVwuUZLUU6fnwPQcgBfiDIuOxv0:SxpgmyZIDNdjgkUuPCGi23js9x |
| TLSH | T184D21A6AFF0A8495C42DE23DD179DBD2F7B830E09331EE6D3741A8185E12643A617A2D |
| TrID | 33.1% (.EXE) Win64 Executable (generic) (6522/11/2) 25.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 10.4% (.ICL) Windows Icons Library (generic) (2059/9) 10.3% (.EXE) OS/2 Executable (generic) (2029/13) 10.1% (.EXE) Generic Win/DOS Executable (2002/3) |
| Magika | pebin |
| Reporter |  ghozt |
| Tags: | DLL-Sideloading exe Loader TELEPUZ WindowsCodecs |
ghozt
Delivery:- ClickFix PowerShell (hxxps://sail.autolabsouthgate[.]com/update.ps1) collects a host fingerprint:
MachineGuid|VolumeSerial|ComputerName|BIOS|Model|GPU|Username
- The fingerprint is sent base64-encoded to hxxps://sail.autolabsouthgate[.]com/d/<b64>. The server returns a ZIP built for that victim: Everything.exe + Everything.ini + WindowsCodecs.dll + data.dat
- The ZIP is extracted to %LOCALAPPDATA%\Programs\VoidTools\ and persistence is set with Everything's own flag: -install-current-user-run-on-system-startup
- The DLL's PE timestamp is ~1 min before download time and data.dat is encrypted per victim, so hashes are likely unique per victim.
This DLL (WindowsCodecs.dll proxy):
- Forwards 115 WIC exports to System32\WindowsCodecs.dll
- Strings obfuscated with a rolling XOR (seed 0xA7) plus an RC4 variant (S-box i^0x47, drop 3167)
- Reads data.dat from its own directory. Key = SHA256("<MachineGuid>|<%08X C: serial>|<ComputerName>")
- data.dat layout: IV(16) | AES-256-CBC ciphertext | HMAC-SHA256(key, IV|CT)
- If the HMAC does not match, the DLL exits silently: no activity in sandboxes or on other hosts
- Runtime checks: host process Everything.exe, path \Programs\VoidTools\, CPU/RAM/uptime
- Uses a VEH handler and LdrRegisterDllNotification, then manually maps the decrypted PE with NtAllocateVirtualMemory/NtProtectVirtualMemory
Decrypted stage 3 = TELEPUZ (Polygon contract 0xf55Bea1FdCf1c3ABb39ab92567C09aC1BFf6753E and AES key identical to Elastic's report: https://www.elastic.co/security-labs/telepuz-maas-malware-clickfix)
Intelligence
File Origin
# of uploads :
1
# of downloads :
174
Origin country :
NLVendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
No threats detected
Analysis date:
2026-09-25 04:13:13 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
92.5%
Tags:
malware
Result
Verdict:
Clean
Maliciousness:
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
masquerade microsoft_visual_cc reconnaissance
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Verdict:
Clean
File Type:
dll x64
Verdict:
Unknown
Score:
99%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Trojan.Wacapew
Status:
Suspicious
First seen:
2026-09-25 04:07:16 UTC
File Type:
PE+ (Dll)
AV detection:
12 of 24 (50.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Unpacked files
SH256 hash:
4131c88b0dea6ba45cd633eed383240d41620e4467afa4e956d6c2dfafd58c1c
MD5 hash:
4376f6e050ebd456f6640dc0ea408add
SHA1 hash:
b9b0970281db5f279ad59b2ee7e379312ceec64e
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | SEH__vectored |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | VECT_Ransomware |
|---|---|
| Author: | Mustafa Bakhit |
| Description: | Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Delivery method
Other
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