MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b05377b492f5773f27febaa9d0a70f3bbbd8d69f7f6b9d1d69514ec878ff621b. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b05377b492f5773f27febaa9d0a70f3bbbd8d69f7f6b9d1d69514ec878ff621b
SHA3-384 hash: aa03811c3ed374d121e92f4785de769ce644c21771e800d468270014e27b4881d779de11fb587660bdf4513d58f6b170
SHA1 hash: 21a9f0df42a21168c41511f6a1e2e80aafbfd217
MD5 hash: 809b2e371f6a92fee63902598761fbf0
humanhash: avocado-michigan-sad-equal
File name:Extreme Injector.msi
Download: download sample
File size:29'511'680 bytes
First seen:2026-03-18 19:21:40 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 786432:VPUvJiz4oMkUsWJE3ypw/JdyomE79mPjUTg1ARh8zJfaJr:trz4oMtE3yihdyLEqjkgQh8z1aJr
TLSH T1D45733A7E0720997DE3BC8354FF96A4589B03E5508839D4376D2B256BDF3B2032BB059
TrID 86.8% (.MSI) Microsoft Windows Installer (454500/1/170)
11.6% (.MST) Windows SDK Setup Transform script (61000/1/5)
1.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter burger
Tags:msi signed

Code Signing Certificate

Organisation:OBS Project
Issuer:OBS Project
Algorithm:sha256WithRSAEncryption
Valid from:2026-03-17T06:45:17Z
Valid to:2029-03-17T06:55:17Z
Serial number: 512f3cb85ac8d2b745e96c26598e45eb
Thumbprint Algorithm:SHA256
Thumbprint: e8580cb8f2ec0db22838740fde4c2f63809cf85630046e5316866792883adba5
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
42
Origin country :
NL NL
Vendor Threat Intelligence
Gathering data
Detection:
WinosStager
Create hunting rule
Link:
https://www.capesandbox.com/analysis/58015/
Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69bafb3f93b644ca466b6870
Tags:
n/a
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug base64 CAB crypto expand fingerprint installer installer lolbin signed
Link:
https://www.filescan.io/uploads/69bafb65677ac46843a6acee/reports/01b3352d-eeb9-48b3-a454-f4f95c6a0175/overview
Verdict:
Suspicious
Link:
https://www.hybrid-analysis.com/sample/b05377b492f5773f27febaa9d0a70f3bbbd8d69f7f6b9d1d69514ec878ff621b
Result
Verdict:
UNKNOWN
Link:
https://labs.inquest.net/dfi/sha256/b05377b492f5773f27febaa9d0a70f3bbbd8d69f7f6b9d1d69514ec878ff621b
Verdict:
Malicious
File Type:
msi
Detections:
Trojan-Dropper.OLE2.Agent.sb HEUR:Trojan-Dropper.OLE2.Agent.gen
Link:
https://opentip.kaspersky.com/b05377b492f5773f27febaa9d0a70f3bbbd8d69f7f6b9d1d69514ec878ff621b/results?tab=lookup
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1885981
Signature
Joe Sandbox ML detected suspicious sample
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript called in batch mode (surpress errors)
WScript reads language and country specific registry keys (likely country aware script)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1885981 Sample: Extreme Injector.msi Startdate: 18/03/2026 Architecture: WINDOWS Score: 56 23 Joe Sandbox ML detected suspicious sample 2->23 8 msiexec.exe 84 44 2->8         started        12 msiexec.exe 3 2->12         started        process3 file4 21 C:\Users\user\AppData\...\UlnWMAoHeYo.exe, PE32+ 8->21 dropped 25 Wscript called in batch mode (surpress errors) 8->25 14 wscript.exe 1 8->14         started        signatures5 process6 signatures7 27 Windows Scripting host queries suspicious COM object (likely to drop second stage) 14->27 29 WScript reads language and country specific registry keys (likely country aware script) 14->29 17 UlnWMAoHeYo.exe 1 14->17         started        process8 process9 19 conhost.exe 17->19         started       
Score:
96%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/b05377b492f5773f27febaa9d0a70f3bbbd8d69f7f6b9d1d69514ec878ff621b
Gathering data
Gathering data
Verdict:
Malicious
Threat:
Trojan-Dropper.OLE2.Agent
Link:
https://tip.neiki.dev/file/b05377b492f5773f27febaa9d0a70f3bbbd8d69f7f6b9d1d69514ec878ff621b
Threat name:
Script-WScript.Trojan.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2026-03-18 19:21:46 UTC
File Type:
Binary (Archive)
Extracted files:
23
AV detection:
3 of 24 (12.50%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wbjxpnes6v3t6j76xku5bjypho55rvu7p5vz2hljkfhmq6h7minq._file
Gathering data
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b05377b492f5773f27febaa9d0a70f3bbbd8d69f7f6b9d1d69514ec878ff621b

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:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:upxHook
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/58015/

Comments