MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 2bbc785956c3eeaad2baa46b9b75998dca8d8dec106d28cedce99baa16474850. 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
MuckStealer
Vendor detections: 13
| SHA256 hash: | 2bbc785956c3eeaad2baa46b9b75998dca8d8dec106d28cedce99baa16474850 |
|---|---|
| SHA3-384 hash: | 43b0c47f491b136a2544a159aa488a084592815a85dc1abc90dec382f18c2123acb97eddea63d22b05610f6c37721248 |
| SHA1 hash: | f01874a8e57ebd48bd0174f86506176400b40063 |
| MD5 hash: | 62c207d866ecc21ecfeaf2cbd12680ad |
| humanhash: | island-high-rugby-fourteen |
| File name: | yo.exe |
| Download: | download sample |
| Signature | MuckStealer |
| File size: | 18'801'212 bytes |
| First seen: | 2026-02-28 02:50:46 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | dcaf48c1f10b0efa0a4472200f3850ed (47 x BlankGrabber, 23 x Efimer, 21 x NetSupport) |
| ssdeep | 393216:Tqw+gtb5eorxD51yUdq1B7fRYgwEHsn4qSwB0pifgw4:Tqw+0HrxD51yUg1RJgzSo0ph |
| TLSH | T11F17335042D20A37D9D7F23A11BA46A3E2B2B4840F72995F1F98572A3F771E14D3BB90 |
| TrID | 70.9% (.EXE) InstallShield setup (43053/19/16) 10.7% (.EXE) Win64 Executable (generic) (6522/11/2) 8.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 3.3% (.EXE) OS/2 Executable (generic) (2029/13) 3.3% (.EXE) Generic Win/DOS Executable (2002/3) |
| Magika | pebin |
| Reporter |  BastianHein |
| Tags: | exe MuckStealer |
Intelligence
File Origin
# of uploads :
1
# of downloads :
134
Origin country :
CLVendor Threat Intelligence
Malware configuration found for:
PyInstaller
Details
PyInstaller
a compiled assembly and a Python version
Malware family:
n/a
ID:
1
File name:
yo.exe
Verdict:
Suspicious activity
Analysis date:
2026-02-28 02:09:20 UTC
Tags:
python
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Verdict:
Malicious
Score:
95.7%
Tags:
installer extens virus
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
expand installer-heuristic lolbin microsoft_visual_cc overlay packed packed pyinstaller pyinstaller python stealer unsafe virus
Verdict:
Malicious
Labled as:
Clyp.Generic
Verdict:
Malicious
File Type:
exe x64
Detections:
Trojan-PSW.Win32.Greedy.sb Trojan-PSW.Win32.Disco.sb Trojan-PSW.Python.Muck.sb Trojan-PSW.MSIL.Stealer.sb HEUR:Trojan.Python.Pytr.dm HEUR:Trojan.Python.Pytr.bi Trojan-PSW.Win32.Coins.sb HEUR:Trojan-PSW.Win64.BroPass.sb HEUR:Trojan-PSW.Python.Agent.gen HEUR:Trojan.Python.Rodico.gen HEUR:Trojan.Python.Creal.a HEUR:Trojan.Python.Agent.gen.gen
Score:
99%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Verdict:
Malicious
Threat:
Family.BLANKGRABBER
Threat name:
Win64.Trojan.Egairtigado
Status:
Malicious
First seen:
2026-02-28 02:51:33 UTC
File Type:
PE+ (Exe)
Extracted files:
1133
AV detection:
18 of 38 (47.37%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
muck_stealer
Score:
10/10
Tags:
family:muck_stealer pyinstaller
Behaviour
Suspicious use of WriteProcessMemory
Loads dropped DLL
Unpacked files
SH256 hash:
2bbc785956c3eeaad2baa46b9b75998dca8d8dec106d28cedce99baa16474850
MD5 hash:
62c207d866ecc21ecfeaf2cbd12680ad
SHA1 hash:
f01874a8e57ebd48bd0174f86506176400b40063
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: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerException__SetConsoleCtrl |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | dependsonpythonailib |
|---|---|
| Author: | Tim Brown |
| Description: | Hunts for dependencies on Python AI libraries |
| Rule name: | Detect_PyInstaller |
|---|---|
| Author: | Obscurity Labs LLC |
| Description: | Detects PyInstaller compiled executables across platforms |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | PyInstaller |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies executable converted using PyInstaller. This rule by itself does NOT necessarily mean the detected file is malicious. |
| Rule name: | upxHook |
|---|---|
| Author: | @r3dbU7z |
| Description: | Detect artifacts from 'upxHook' - modification of UPX packer |
| Reference: | https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/ |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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