MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1c22bfa31a75c6951e81e1b284f79e87131e966b43297cfee3a7dd421a2c91a. 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



VIPKeylogger


Vendor detections: 12


Intelligence 12 IOCs YARA 1 File information Comments

SHA256 hash: b1c22bfa31a75c6951e81e1b284f79e87131e966b43297cfee3a7dd421a2c91a
SHA3-384 hash: 6588023f67b0e0fa39e5fff968294511348ca52f6fe8ff23d44c9410ce68a1bf0f0f09100a24f5c0f1d419b2ab2d074a
SHA1 hash: b8d92280faf520f183122f286ff78d5aaeeb04b3
MD5 hash: 7fd1b2a983c973b25852dbbb4f14c742
humanhash: alabama-florida-bakerloo-crazy
File name:MRF 0481 MEACORP300107102025 PCLA MS_PDF.js
Download: download sample
Signature VIPKeylogger
File size:383'989 bytes
First seen:2025-10-07 14:29:23 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 3072:PtiP+B16ONE+xvAr3uV/NWfHTLpOr4GdIwH1y4pOwdG5BLWJJGbk+SQ5HLYWUiUb:JtnSx4px4Wh2nXqvElDHFNfT2RbWi
Threatray 3'225 similar samples on MalwareBazaar
TLSH T17C84093AE27EB8F07683A1A513A743A67B7884FB629CB4F4517148580476D0F7EE409F
Magika javascript
Reporter abuse_ch
Tags:js VIPKeylogger

Intelligence


File Origin
# of uploads :
1
# of downloads :
92
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Tags:
obfuscate xtreme shell
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated
Verdict:
Malicious
File Type:
js
First seen:
2025-10-07T03:49:00Z UTC
Last seen:
2025-10-08T00:50:00Z UTC
Hits:
~10
Result
Threat name:
Snake Keylogger, VIP Keylogger
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains a sample name check
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Creates processes via WMI
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Sample uses string decryption to hide its real strings
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded IEX Cmdlet
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Snake Keylogger
Yara detected Telegram RAT
Yara detected VIP Keylogger
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1790678 Sample: MRF 0481 MEACORP30010710202... Startdate: 07/10/2025 Architecture: WINDOWS Score: 100 32 reallyfreegeoip.org 2->32 34 api.telegram.org 2->34 36 2 other IPs or domains 2->36 44 Suricata IDS alerts for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 54 12 other signatures 2->54 10 wscript.exe 1 1 2->10         started        signatures3 50 Tries to detect the country of the analysis system (by using the IP) 32->50 52 Uses the Telegram API (likely for C&C communication) 34->52 process4 file5 30 C:\Users\user\AppData\...\BlazingModule.bat, ASCII 10->30 dropped 68 Wscript starts Powershell (via cmd or directly) 10->68 70 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->70 72 Suspicious execution chain found 10->72 74 Creates processes via WMI 10->74 14 cmd.exe 1 10->14         started        signatures6 process7 signatures8 76 Suspicious powershell command line found 14->76 78 Wscript starts Powershell (via cmd or directly) 14->78 17 cmd.exe 1 14->17         started        19 conhost.exe 14->19         started        process9 process10 21 cmd.exe 2 17->21         started        signatures11 56 Suspicious powershell command line found 21->56 58 Wscript starts Powershell (via cmd or directly) 21->58 24 powershell.exe 16 28 21->24         started        28 conhost.exe 21->28         started        process12 dnsIp13 38 api.telegram.org 149.154.167.220, 443, 49701 TELEGRAMRU United Kingdom 24->38 40 checkip.dyndns.com 158.101.44.242, 49687, 49693, 49695 ORACLE-BMC-31898US United States 24->40 42 reallyfreegeoip.org 172.67.177.134, 443, 49691, 49692 CLOUDFLARENETUS United States 24->42 60 Tries to steal Mail credentials (via file / registry access) 24->60 62 Tries to harvest and steal browser information (history, passwords, etc) 24->62 64 Found suspicious powershell code related to unpacking or dynamic code loading 24->64 66 Loading BitLocker PowerShell Module 24->66 signatures14
Gathering data
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2025-10-07 14:35:54 UTC
File Type:
Text (JavaScript)
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Result
Malware family:
vipkeylogger
Score:
  10/10
Tags:
family:vipkeylogger collection discovery execution keylogger stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Command and Scripting Interpreter: JavaScript
System Location Discovery: System Language Discovery
Accesses Microsoft Outlook profiles
Command and Scripting Interpreter: PowerShell
Looks up external IP address via web service
Badlisted process makes network request
Process spawned unexpected child process
VIPKeylogger
Vipkeylogger family
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:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information


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

Comments