MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 815278833a20e95cd14f6ab44f46b46f2eb22d224742220bf2c4ad753afdbf38. 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
| SHA256 hash: | 815278833a20e95cd14f6ab44f46b46f2eb22d224742220bf2c4ad753afdbf38 |
|---|---|
| SHA3-384 hash: | 34805aec293631854c8aa421a7787e220c595f2b564145a576ab7c466cd00ebea8b43b6a3424c900f9d9836541d53635 |
| SHA1 hash: | 23d93ed92bf24834869c9a937dc999fe9e1d61b1 |
| MD5 hash: | 10792033a3550529536af5ab9bf98688 |
| humanhash: | may-montana-salami-pennsylvania |
| File name: | 10792033a3550529536af5ab9bf98688.js |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'300'040 bytes |
| First seen: | 2026-03-11 15:46:03 UTC |
| Last seen: | Never |
| File type: |  js |
| MIME type: | text/plain |
| ssdeep | 96:mvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvT:ExnH5AU5HpxH8HWL45aV+iFnO9VUDP7 |
| Threatray | 36 similar samples on MalwareBazaar |
| TLSH | T156551DE3CAA1709516821119E58117FEEF5B93D6FFDE2239E21C8AD37F9306071212B9 |
| Magika | javascript |
| Reporter |  abuse_ch |
| Tags: | FormBook js |
Intelligence
File Origin
# of uploads :
1
# of downloads :
178
Origin country :
SEVendor Threat Intelligence
No detections
Detection(s):
Verdict:
Clean
Score:
99.9%
Tags:
n/a
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm base64 evasive fingerprint obfuscated obfuscated opendir overlay powershell repaired
Verdict:
Malicious
Labled as:
JS/Agent.DGD9
Verdict:
Malicious
File Type:
js
Detections:
HEUR:Trojan.Script.SAgent.gen HEUR:Trojan.Script.Generic Trojan.JS.SAgent.sb
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Signature
Creates processes via WMI
Injects a PE file into a foreign processes
JavaScript source code contains functionality to generate code involving a shell, file or stream
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: 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
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 MSIL Injector
Behaviour
Behavior Graph:
Score:
4%
Verdict:
Benign
File Type:
SCRIPT
Gathering data
Verdict:
Malicious
Threat:
Family.REVERSELOADER
Threat name:
Script-JS.Trojan.Heuristic
Status:
Malicious
First seen:
2026-03-11 08:01:11 UTC
File Type:
Text (JavaScript)
AV detection:
7 of 24 (29.17%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 26 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
10/10
Tags:
execution
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Process spawned unexpected child process
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.
No further information available
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