MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bfbc2499cd2959f37f008b16450bd13a32025dcd81ececca0ca27a5f8b083ce2. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bfbc2499cd2959f37f008b16450bd13a32025dcd81ececca0ca27a5f8b083ce2
SHA3-384 hash: 57547ea22113375566fff8ba6f0c0011e5f436859c91045b5c88171c6f79b678d533315837d2773a31dbb9258bb88b1a
SHA1 hash: c1b7c9cd81f95a58c1decbb11e16b003015177b4
MD5 hash: 91e4986997e862b63a808c8f8dd1f394
humanhash: virginia-five-venus-summer
File name:91e4986997e862b63a808c8f8dd1f394.vbs
Download: download sample
Signature Formbook
Create hunting rule
File size:1'863'324 bytes
First seen:2026-03-18 09:52:48 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/csv
ssdeep 384:3i57LTBCOtizq2fhuopb/AJGYOxrc11I2u2XyAKng4D/2nS/vClwLno4D/2nSiTl:AEA
TLSH T1FA858ABEEF6C39DF9C963AC172460455E417891406F27DA02FEAEDCD473CB620892AD4
Magika txt
Reporter abuse_ch
Tags:FormBook vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
65
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/57952/
Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69ba7b8188c80c01586b974c
Tags:
shell spawn blic
Gathering data
Verdict:
Malicious
Link:
https://www.hybrid-analysis.com/sample/bfbc2499cd2959f37f008b16450bd13a32025dcd81ececca0ca27a5f8b083ce2
Verdict:
Malicious
File Type:
text
Detections:
HEUR:Trojan.Script.Generic Trojan-Downloader.JS.Cryptoload.sb Trojan.VBS.SAgent.sb Trojan.JS.SAgent.sb HEUR:Trojan-Downloader.Script.Generic HEUR:Trojan.VBS.SAgent.gen
Link:
https://opentip.kaspersky.com/bfbc2499cd2959f37f008b16450bd13a32025dcd81ececca0ca27a5f8b083ce2/results?tab=lookup
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1885575
Signature
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Creates processes via WMI
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Sigma detected: Potentially Suspicious PowerShell Child Processes
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Windows Shell/Scripting Application File Write to Suspicious Folder
Sigma detected: WScript or CScript Dropper
Sigma detected: WScript or CScript Dropper - File
Suspicious execution chain found
Suspicious powershell command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Windows Shell Script Host drops VBS files
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1885575 Sample: miCnu1nGQ7.vbs Startdate: 18/03/2026 Architecture: WINDOWS Score: 100 30 gateway.lighthouse.storage 2->30 32 d1zwe7rg2uojh7.cloudfront.net 2->32 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for URL or domain 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 8 other signatures 2->42 8 wscript.exe 1 2 2->8         started        12 powershell.exe 14 15 2->12         started        15 wscript.exe 1 2->15         started        signatures3 process4 dnsIp5 28 C:\Users\Public\Downloads28ame_File.vbs, CSV 8->28 dropped 50 Suspicious powershell command line found 8->50 52 Wscript starts Powershell (via cmd or directly) 8->52 54 Windows Shell Script Host drops VBS files 8->54 64 3 other signatures 8->64 34 d1zwe7rg2uojh7.cloudfront.net 18.161.134.122, 443, 49688, 49696 MIT-GATEWAYSUS United States 12->34 56 Writes to foreign memory regions 12->56 58 Modifies the context of a thread in another process (thread injection) 12->58 60 Injects a PE file into a foreign processes 12->60 62 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 12->62 17 conhost.exe 12->17         started        19 wscript.exe 12->19         started        21 powershell.exe 15->21         started        file6 signatures7 process8 signatures9 44 Writes to foreign memory regions 21->44 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Injects a PE file into a foreign processes 21->48 24 conhost.exe 21->24         started        26 wscript.exe 21->26         started        process10
Score:
9%
Verdict:
Benign
File Type:
SCRIPT
Link:
https://malprob.io/report/bfbc2499cd2959f37f008b16450bd13a32025dcd81ececca0ca27a5f8b083ce2
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bfbc2499cd2959f37f008b16450bd13a32025dcd81ececca0ca27a5f8b083ce2/
Verdict:
Malicious
Threat:
Trojan-Downloader.JS.Cryptoload
Link:
https://tip.neiki.dev/file/bfbc2499cd2959f37f008b16450bd13a32025dcd81ececca0ca27a5f8b083ce2
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2026-03-17 09:42:45 UTC
File Type:
Text (VBS)
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x66cjgonffm7g7yarmlekc6rhizaexonqhwozsqmuj5f7cyihtra._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook adware discovery execution persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/260318-mayn4afy9y/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of SetThreadContext
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Process spawned unexpected child process
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/bfbc2499cd2959f37f008b16450bd13a32025dcd81ececca0ca27a5f8b083ce2

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:detect_tiny_vbs
Create hunting rule
Author:daniyyell
Description:Detects tiny VBS delivery technique

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/57952/

Comments