MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 788919bf34d3a23ab0480f0d86627aed25101822f71e0c0037f09b0ced427a5a. 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: 12
| SHA256 hash: | 788919bf34d3a23ab0480f0d86627aed25101822f71e0c0037f09b0ced427a5a |
|---|---|
| SHA3-384 hash: | 119d10862aefde4e9f4de16dcb8fb710d980befe69f28122d33652cf7f8be3c85038c701673918730478ea1a43b91c4d |
| SHA1 hash: | bcc52e666569595823779653241aa493f09df096 |
| MD5 hash: | 3502a7c516415ebddfc23e2bc48e29a0 |
| humanhash: | cola-michigan-vegan-three |
| File name: | 3502a7c516415ebddfc23e2bc48e29a0.vbs |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'070'480 bytes |
| First seen: | 2026-03-18 10:04:39 UTC |
| Last seen: | Never |
| File type: |  vbs |
| MIME type: | text/plain |
| ssdeep | 768:KNYdTCntEwetZKJSOypGl1+Qt/Qs3+NG+YQpUzdrtY8yBgtgnnZOTtt2n5OqJZsZ:gd/ |
| Threatray | 30 similar samples on MalwareBazaar |
| TLSH | T1733509CB488636570EF9E2219FA9F38DB827E49244184C236B163A1E09D78DD5731BF7 |
| Magika | vba |
| Reporter |  abuse_ch |
| Tags: | FormBook vbs |
Intelligence
File Origin
# of uploads :
1
# of downloads :
73
Origin country :
SEVendor Threat Intelligence
No detections
Detection:
n/a
Verdict:
Malicious
Score:
93.3%
Tags:
obfuscate xtreme virus
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm base64 evasive fingerprint obfuscated obfuscated overlay packed powershell
Verdict:
Malicious
Labled as:
Agent
Result
Gathering data
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
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: PowerShell Base64 Encoded IEX Cmdlet
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)
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Score:
7%
Verdict:
Benign
File Type:
SCRIPT
Gathering data
Verdict:
Malicious
Threat:
Family.FORMBOOK
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2026-03-16 06:58:47 UTC
File Type:
Text (VBS)
AV detection:
10 of 36 (27.78%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 20 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook adware discovery execution persistence rat spyware stealer trojan
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
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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