MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 85bebb4da660f33be5aefd120cf7e715f76d22d87fc9334413f0061f1a238fa5. 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: 10


Intelligence 10 IOCs YARA File information Comments

SHA256 hash: 85bebb4da660f33be5aefd120cf7e715f76d22d87fc9334413f0061f1a238fa5
SHA3-384 hash: 647796d51611d65f94c033b2143a5baa14433f694e030a076af4a9a33773234bea71137fa7babf1ed86cad919c58322a
SHA1 hash: 15c2d2b96830c529d0479061e99a244a430da360
MD5 hash: abfd77f13c92d8748e37558ecb3db828
humanhash: seventeen-pasta-october-utah
File name:comprobante de pago.js
Download: download sample
Signature MassLogger
File size:8'917'082 bytes
First seen:2026-06-25 05:51:41 UTC
Last seen:2026-06-25 05:52:17 UTC
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 3072:jp8Gqo2IYanVsM+nrT6W22q13CEB78GDGRnaOyyAic2A/f24tIDLlFUCpvnXFRH/:ejHNg8u68p1jC
TLSH T1CE961B2DBBEE015C9C26D386EAF151E4C5ACB92203DF651F80765ECE5312386D93226F
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika txt
Reporter lowmal3
Tags:js MassLogger

Intelligence


File Origin
# of uploads :
2
# of downloads :
123
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 conhost encrypted powershell repaired zero-day
Verdict:
Malicious
File Type:
js
First seen:
2026-06-24T14:48:00Z UTC
Last seen:
2026-06-25T02:52:00Z UTC
Hits:
~1000
Detections:
PDM:Trojan.Win32.Generic HEUR:Trojan.Script.Generic HEUR:Trojan.Script.Agent.gen
Result
Threat name:
MSIL Logger, MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains process injector
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Contains functionality to log keystrokes (.Net Source)
Creates an undocumented autostart registry key
Encrypted powershell cmdline option found
Found malware configuration
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
WScript reads language and country specific registry keys (likely country aware script)
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Gathering data
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
Looks up external IP address via web service
Obfuscated Files or Information: Command Obfuscation
Checks computer location settings
Registers new Windows logon scripts automatically executed at logon.
Badlisted process makes network request
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.

Malspam

MassLogger

Java Script (JS) js 85bebb4da660f33be5aefd120cf7e715f76d22d87fc9334413f0061f1a238fa5

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments