MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 643458abc17da13200343c39fb728ed98691f4e09583156124c19958bf04bd75. 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: 7
| SHA256 hash: | 643458abc17da13200343c39fb728ed98691f4e09583156124c19958bf04bd75 |
|---|---|
| SHA3-384 hash: | 099e351d0a86498a51950790ab92cd2650109e2c906e851eb45e4de66e663e70a832b6d0b488ebdde3207f646a554280 |
| SHA1 hash: | c4c84977c6326421601f0e4b2e141a8d03fa8b3d |
| MD5 hash: | 9d1eaa9147eb5865fa5c9978ff1b7078 |
| humanhash: | mirror-violet-idaho-grey |
| File name: | 2133.exe |
| Download: | download sample |
| File size: | 162'720 bytes |
| First seen: | 2026-09-18 20:49:56 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 0c75a978e52c593c4e2514d223cf2880 |
| ssdeep | 3072:iRBjs0JWIK1GYp2w6lRituRA6nPoY4ciMK4nNq/1GW:cFcIwGYPSituRAqohx4Q/J |
| TLSH | T1C3F35B07B6AA30F9E472C53488912616FB72B87103359B7F47A047765F237A0AD3EB61 |
| TrID | 37.0% (.EXE) Win64 Executable (generic) (6522/11/2) 28.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 11.5% (.EXE) OS/2 Executable (generic) (2029/13) 11.3% (.EXE) Generic Win/DOS Executable (2002/3) 11.3% (.EXE) DOS Executable (generic) (2000/1) |
| Magika | pebin |
| Reporter |  devmihaylov |
| Tags: | 7moor Certum Downloader exe signed stager |
Code Signing Certificate
| Organisation: | δΈι₯ΆεΈεη«―η§ζζιε ¬εΈ |
|---|---|
| Issuer: | Certum Extended Validation Code Signing 2021 CA |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2026-08-13T13:21:17Z |
| Valid to: | 2027-08-13T13:21:16Z |
| Serial number: | 5250ab4dd4bd6312f22f92e9b40d8e05 |
| Cert Graveyard Blocklist: | This certificate is on the Cert Graveyard blocklist |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 6588eaf3a40f60024d7e6f565b8bb2f1d62336c6f4e80e4c5b96a5dbba514a71 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
devmihaylov
Certum EV-signed 64-bit downloader with no strings, hand-resolved ntdll natives, a mouse-presence gate and runas self-elevation, which fetches an RC4-hidden URL and runs the XOR-decoded response as in-process shellcode. Second stage not obtained, the CDN answers 514 with an empty body.Intelligence
File Origin
# of uploads :
1
# of downloads :
162
Origin country :
BGVendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
8887.exe
Verdict:
No threats detected
Analysis date:
2026-09-18 09:31:39 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Result
Verdict:
Clean
Maliciousness:
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
adaptive-context anti-debug anti-vm explorer lolbin microsoft_visual_cc signed
Verdict:
Malicious
Labled as:
DR/W64.MalwareX
Verdict:
Unknown
File Type:
exe x64
First seen:
2026-09-18T05:35:00Z UTC
Last seen:
2026-09-19T03:17:00Z UTC
Hits:
~10
Verdict:
Unknown
Score:
47%
Verdict:
Susipicious
File Type:
PE
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Trojan.Wacatac
Status:
Suspicious
First seen:
2026-09-18 12:29:11 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
10 of 38 (26.32%)
Threat level:
5/5
Detection(s):
Suspicious file
Unpacked files
SH256 hash:
643458abc17da13200343c39fb728ed98691f4e09583156124c19958bf04bd75
MD5 hash:
9d1eaa9147eb5865fa5c9978ff1b7078
SHA1 hash:
c4c84977c6326421601f0e4b2e141a8d03fa8b3d
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: | certum_issuer |
|---|---|
| Author: | Certum |
| Description: | Looks for files signed with certificate issued by Certum |
| Rule name: | cobalt_strike_tmp01925d3f |
|---|---|
| Author: | The DFIR Report |
| Description: | files - file ~tmp01925d3f.exe |
| Reference: | https://thedfirreport.com |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerCheck__QueryInfo |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | detect_certum_issuer |
|---|---|
| Author: | Certum |
| Description: | Looks for files signed with certificate issued by Certum |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | TigerRAT_pe_yaraify |
|---|---|
| Author: | hunts-yara-code |
| Description: | YARAify-tightened byte rule from 9 sample(s) -- VERIFY hits |
| 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.
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