MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb8a28149cfb7b73aba293a376165db94c3c2b4bffe59965997cc8978ae15686. 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



MassLogger


Vendor detections: 11


Intelligence 11 IOCs YARA File information Comments

SHA256 hash: fb8a28149cfb7b73aba293a376165db94c3c2b4bffe59965997cc8978ae15686
SHA3-384 hash: f3aa49604308ccd3eaa81c512f172d6888f73fde9ba982db857c397a10ea2b4debc3fd9d73ebf32ab87b0a588e7bed73
SHA1 hash: 7b7cf26485128edb5a2b05ce83a3bffc390f8a57
MD5 hash: 05f37e62c283c4c4296a6146720576f6
humanhash: carpet-rugby-winner-alabama
File name:Cotización_pdf.js
Download: download sample
Signature MassLogger
File size:804'512 bytes
First seen:2026-06-10 06:08:56 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 3072:Kk6+yk20iD5GQROX8d1c9FsTLVGaktKgGJx1tpoh2JPSQUaMnd8wG6r4FYIfb+/H:rchZu
Threatray 1'566 similar samples on MalwareBazaar
TLSH T17805C73DC914012EE576D629C44A052FF9D26A4F123CD90360CA6B5FAFA384677C73AE
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika autohotkey
Reporter abuse_ch
Tags:js MassLogger

Intelligence


File Origin
# of uploads :
1
# of downloads :
118
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
conhost masquerade powershell repaired
Verdict:
Malicious
File Type:
js
First seen:
2026-06-09T13:44:00Z UTC
Last seen:
2026-06-10T00:02:00Z UTC
Hits:
~1000
Detections:
PDM:Trojan.Win32.Generic HEUR:Trojan.Script.Generic
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.expl.evad
Score:
84 / 100
Signature
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Multi AV Scanner detection for submitted file
Powershell scriptblock execution from environment variable
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
WScript reads language and country specific registry keys (likely country aware script)
Behaviour
Behavior Graph:
Gathering data
Threat name:
Script-JS.Trojan.AgentTesla
Status:
Malicious
First seen:
2026-06-09 20:01:31 UTC
File Type:
Text (JavaScript)
AV detection:
9 of 36 (25.00%)
Threat level:
  5/5
Result
Malware family:
masslogger
Score:
  10/10
Tags:
family:masslogger collection defense_evasion execution persistence spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Accesses Microsoft Outlook profiles
Hide Artifacts: Hidden Window
Looks up external IP address via web service
Checks computer location settings
Registers new Windows logon scripts automatically executed at logon.
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
Family: MassLogger
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

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