MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b44919b1f152b7bc2e2629abc664cce2ee7abc297ca3e5faababa4dfae6f9f49. 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: b44919b1f152b7bc2e2629abc664cce2ee7abc297ca3e5faababa4dfae6f9f49
SHA3-384 hash: 59b113c7086b01c173f49fc4cedec420986a4d8b618c5704cd990e5afc665deade832efa9d6e2ac40a296e392dc3a62e
SHA1 hash: 0aa7681b7cbaca2f0445197c9e13ac4f5d252800
MD5 hash: 17756f152d77af6985be797950c3d947
humanhash: yellow-apart-september-juliet
File name:RFQ- PR 115322 NBP SQD700 INV.973G.js
Download: download sample
Signature MassLogger
File size:781'216 bytes
First seen:2026-06-11 06:31:16 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 3072:E2J0uWO7eFQB3G9i2L0vFCV1PortM78K2DUnRFXnOk7N8RNkYwD9P3zDpqHFVnrN:UhiH
Threatray 1'576 similar samples on MalwareBazaar
TLSH T162F4083DCC64413EE032C619C996055FF8925A1B222CED0B60C73B9BAE7398677D729D
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika txt
Reporter threatcat_ch
Tags:js MassLogger

Intelligence


File Origin
# of uploads :
1
# of downloads :
143
Origin country :
CH CH
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
90.2%
Tags:
agenttesla obfuscate shell virus
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade repaired
Verdict:
Malicious
File Type:
js
First seen:
2026-06-10T16:39:00Z UTC
Last seen:
2026-06-11T03:35:00Z UTC
Hits:
~1000
Detections:
PDM:Trojan.Win32.Generic HEUR:Trojan-Downloader.Script.Generic HEUR:Trojan.Script.Generic
Result
Threat name:
MSIL Logger, MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Contains functionality to capture screen (.Net source)
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
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Potential dropper URLs found in powershell memory
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1926382 Sample: RFQ- PR 115322 NBP SQD700 I... Startdate: 11/06/2026 Architecture: WINDOWS Score: 100 18 reallyfreegeoip.org 2->18 20 mail.trimnt.com 2->20 22 2 other IPs or domains 2->22 30 Suricata IDS alerts for network traffic 2->30 32 Found malware configuration 2->32 34 Malicious sample detected (through community Yara rule) 2->34 38 9 other signatures 2->38 8 wscript.exe 1 1 2->8         started        signatures3 36 Tries to detect the country of the analysis system (by using the IP) 18->36 process4 signatures5 40 JScript performs obfuscated calls to suspicious functions 8->40 42 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->42 44 Suspicious execution chain found 8->44 46 WScript reads language and country specific registry keys (likely country aware script) 8->46 11 conhost.exe 8->11         started        process6 signatures7 48 Encrypted powershell cmdline option found 11->48 14 powershell.exe 15 58 11->14         started        process8 dnsIp9 24 173.249.202.70, 443, 49716 TZULO-tzuloincUS United States 14->24 26 checkip.dyndns.com 132.226.247.73, 49717, 49727, 49729 ORACLE-BMC-31898-OracleCorporationUS Brazil 14->26 28 2 other IPs or domains 14->28 50 Creates an undocumented autostart registry key 14->50 52 Tries to harvest and steal browser information (history, passwords, etc) 14->52 54 Potential dropper URLs found in powershell memory 14->54 signatures10
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 SetWindowsHookEx
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
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.

Malspam

MassLogger

Java Script (JS) js b44919b1f152b7bc2e2629abc664cce2ee7abc297ca3e5faababa4dfae6f9f49

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments