MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 455358c970f202a4fa3fb055dbfa05212d5468f23e7cc2967be6fee33120dd53. 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: 8


Intelligence 8 IOCs YARA File information Comments

SHA256 hash: 455358c970f202a4fa3fb055dbfa05212d5468f23e7cc2967be6fee33120dd53
SHA3-384 hash: 44f7a3a53034c1458eaa27bbd74b385598a084b0ad0408373511f5ec2c50d8f53d43bce590c0283e920ad6ddc9073388
SHA1 hash: fe1772dd2bb637ded202533fcb381e4dd000c286
MD5 hash: d4a00f59009aeabc1ad55fcdd4872980
humanhash: oklahoma-charlie-william-carbon
File name:swift mt103.js
Download: download sample
Signature MassLogger
File size:207'635 bytes
First seen:2025-06-18 08:05:32 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 768:upAyXFPUB1LtTtmRlqGBFbJY7CjT4VlpX:uyEFPUB4fNtNjAX
TLSH T12E14610A7F1161A154F7A31BBE2A8204E5313317A452862739FED6446F72CC4D7BAFE8
Magika javascript
Reporter abuse_ch
Tags:js MassLogger

Intelligence


File Origin
# of uploads :
1
# of downloads :
285
Origin country :
NL NL
Vendor Threat Intelligence
Gathering data
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
Bypasses PowerShell execution policy
Connects to a pastebin service (likely for C&C)
Found suspicious powershell code related to unpacking or dynamic code loading
Javascript file is likely language aware (will only work on specific systems)
JavaScript source code contains functionality to generate code involving HTTP requests or file downloads
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
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Malicious Base64 Encoded PowerShell Keywords in Command Lines
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Verdict:
inconclusive
YARA:
1 match(es)
Threat name:
Script-JS.Trojan.Cryxos
Status:
Malicious
First seen:
2025-06-17 09:48:19 UTC
File Type:
Text (JavaScript)
AV detection:
6 of 23 (26.09%)
Threat level:
  5/5
Result
Malware family:
masslogger
Score:
  10/10
Tags:
family:masslogger collection discovery execution spyware stealer
Behaviour
Script User-Agent
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
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Masslogger family
MassLogger
Malware Config
Dropper Extraction:
https://cdn.tagbox.io/assets/6850bda459dffb0011a76b02/a3edcbb7-06ae-4329-bf33-096c01a0636d---wp4096799-lost-in-space-wallpapers.jpg
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.

Comments