MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 049812e47d5334275a82320a30608d9a8e3fb192c340980f67e31375c96eae70. 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



Formbook


Vendor detections: 6


Intelligence 6 IOCs YARA File information Comments

SHA256 hash: 049812e47d5334275a82320a30608d9a8e3fb192c340980f67e31375c96eae70
SHA3-384 hash: 2c62b55dd43fec0b9c5a20120c118f6dc948405c4007abe3e53d8b2d03813943dddd790f763a43a81b8b88eaf472f1bb
SHA1 hash: 7650975f8166c69492fd337ef38060d0dcdb7780
MD5 hash: d5a181c9b603c8b4689db101dbac45ff
humanhash: grey-oregon-massachusetts-nine
File name:RFQ63112.js
Download: download sample
Signature Formbook
File size:411'379 bytes
First seen:2025-06-18 08:06:20 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 768:CLvTcobxKUCzY7VjJ4VlpFnKHLvTcobxKUCzY7VjJ4VlpX:odxKwja4ldxKwjaX
TLSH T19E944E0A6F1160A554F7A31AFE2A4204E5213317945282273AFED6447F7ECC4D7BAFE8
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence


File Origin
# of uploads :
1
# of downloads :
318
Origin country :
NL NL
Vendor Threat Intelligence
Gathering data
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Bypasses PowerShell execution policy
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Javascript file is likely language aware (will only work on specific systems)
JavaScript source code contains functionality to generate code involving a shell, file or stream
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
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: Suspicious PowerShell Parameter Substring
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected FormBook
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1717251 Sample: RFQ63112.js Startdate: 18/06/2025 Architecture: WINDOWS Score: 100 44 e179336.a.akamaiedge.net 2->44 46 barry.lovestoblog.com 2->46 48 4 other IPs or domains 2->48 66 Suricata IDS alerts for network traffic 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 Multi AV Scanner detection for submitted file 2->70 72 11 other signatures 2->72 11 wscript.exe 1 1 2->11         started        14 wscript.exe 2->14         started        signatures3 process4 signatures5 76 JScript performs obfuscated calls to suspicious functions 11->76 78 Suspicious powershell command line found 11->78 80 Wscript starts Powershell (via cmd or directly) 11->80 82 3 other signatures 11->82 16 powershell.exe 14 17 11->16         started        process6 dnsIp7 40 barry.lovestoblog.com 185.27.134.117, 49692, 80 WILDCARD-ASWildcardUKLimitedGB United Kingdom 16->40 42 d2rf50u1p3jcpj.cloudfront.net 18.238.80.38, 443, 49687 AMAZON-02US United States 16->42 60 Writes to foreign memory regions 16->60 62 Found suspicious powershell code related to unpacking or dynamic code loading 16->62 64 Injects a PE file into a foreign processes 16->64 20 appidtel.exe 16->20         started        23 cmd.exe 1 16->23         started        25 conhost.exe 16->25         started        signatures8 process9 signatures10 74 Maps a DLL or memory area into another process 20->74 27 BVZAzWS1k.exe 20->27 injected 30 conhost.exe 23->30         started        process11 signatures12 84 Maps a DLL or memory area into another process 27->84 32 SndVol.exe 13 27->32         started        process13 signatures14 52 Tries to steal Mail credentials (via file / registry access) 32->52 54 Tries to harvest and steal browser information (history, passwords, etc) 32->54 56 Modifies the context of a thread in another process (thread injection) 32->56 58 3 other signatures 32->58 35 HOVlOjMKG0t.exe 32->35 injected 38 chrome.exe 32->38         started        process15 dnsIp16 50 e179336.a.akamaiedge.net 23.48.224.109, 49694, 80 AKAMAI-ASN1EU United States 35->50
Verdict:
inconclusive
YARA:
1 match(es)
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2025-06-17 06:27:19 UTC
File Type:
Text (JavaScript)
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
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.

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