MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 099b66627bebb02489b2824627f93e987a7718b0d593648e5e6f24c8f98c0874. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 099b66627bebb02489b2824627f93e987a7718b0d593648e5e6f24c8f98c0874
SHA3-384 hash: 716e7ef46ffece4b24cd9562c33377489d8f7297f7246d8dda91570e692168f95aacdf55f62242dc252a3dba27f58dbb
SHA1 hash: d6a789c92c75edd19e0f3e2eeb0c40e3152f49fc
MD5 hash: fe0493c27028cabfd24517c378177c42
humanhash: montana-may-arkansas-steak
File name:runbroke64.js
Download: download sample
File size:238'985 bytes
First seen:2025-03-11 10:09:09 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 3072:IoooooooooooooooooooooooUooooooooooooooooooooooov9ooooooooooooo9:gt
TLSH T1D734F06DC3278D95F8D3912E39B86D409ECC0CD674E3E758FB7C51803B1AA69D262836
Magika javascript
Reporter JAMESWT_WT
Tags:103-179-184-156 20-241-85-64 js

Intelligence

File Origin
# of uploads :
1
# of downloads :
415
Origin country :
IT IT
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d00cf24fd7d3fd0e082a24
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
evasive obfuscated obfuscated powershell
Link:
https://www.filescan.io/uploads/67d00be04a3011c802cd1c94/reports/c81ca43f-d106-4454-ab74-3dc4dd516a96/overview
Verdict:
Malicious
Labled as:
JS_TrojanDownloader_Agent_ACCU
Link:
https://www.hybrid-analysis.com/sample/099b66627bebb02489b2824627f93e987a7718b0d593648e5e6f24c8f98c0874
Result
Verdict:
MALICIOUS
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
Base64 Encoded URL
Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1635094
Signature
JavaScript source code contains functionality to generate code involving a shell, file or stream
JavaScript source code contains functionality to generate code involving HTTP requests or file downloads
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Powershell download and load assembly
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/099b66627bebb02489b2824627f93e987a7718b0d593648e5e6f24c8f98c0874
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/099b66627bebb02489b2824627f93e987a7718b0d593648e5e6f24c8f98c0874/
Threat name:
Script.Trojan.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2025-03-10 16:56:42 UTC
File Type:
Text (JavaScript)
AV detection:
8 of 38 (21.05%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bgnwmyt35oycjcnsqjdcp6j6tb5hogfq2wjwjds6n4smr6mmbb2a._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution
Link:
https://tria.ge/reports/250311-l6z2cszkz7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Blocklisted process makes network request
Malware Config
Dropper Extraction:
https://1019.filemail.com/api/file/get?filekey=ZrKTNo-_DMWgm0oonSr97JAkdrUqbICVeG2LmuclzuON2ZavKqsQg0NqChSLT4A&pk_vid=342803d1cc4e3b801741606974b78eb1
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Base64_Encoded_Powershell_Directives
Create hunting rule

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments