MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f42e5e71951226abef9b73e236b7d374c7144b66e8f2cc055d536cf444547fe6. 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: | f42e5e71951226abef9b73e236b7d374c7144b66e8f2cc055d536cf444547fe6 |
|---|---|
| SHA3-384 hash: | d47dd884fcbf2c6a57a539d403ad90732a2252e72bea15465ccf1471a92dbdd8c381ec1e876229a70e422cd6e5c7e735 |
| SHA1 hash: | 77f5ea3249202a20487a1f3898ac72c6bad07172 |
| MD5 hash: | 49d06d5b3aa5bd28c9cf9b7fbeb17d6c |
| humanhash: | zulu-seventeen-crazy-carbon |
| File name: | STATUS_SALARY_RECEIPT.vbs |
| Download: | download sample |
| Signature | Formbook |
| File size: | 444'317 bytes |
| First seen: | 2025-04-15 10:07:57 UTC |
| Last seen: | Never |
| File type: |  vbs |
| MIME type: | text/plain |
| ssdeep | 192:ocacacacacacacacacacacacacacacacacacacacacacacacacacacacacacaca1:k6Ts |
| Threatray | 36 similar samples on MalwareBazaar |
| TLSH | T10794F32EDD69C7A54F3DF318C9AC7619EDA07D26C03950B42B733183769A42686CF872 |
| Magika | vba |
| Reporter |  abuse_ch |
| Tags: | FormBook vbs |
Intelligence
File Origin
# of uploads :
1
# of downloads :
89
Origin country :
NLVendor Threat Intelligence
Detection:
n/a
Verdict:
Malicious
Score:
97.4%
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
evasive obfuscated overlay powershell
Verdict:
Suspicious
Labled as:
VBS/Agent.BYY
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Connects to a pastebin service (likely for C&C)
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
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: PowerShell Base64 Encoded FromBase64String Cmdlet
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)
VBScript performs obfuscated calls to suspicious functions
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
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Score:
92%
Verdict:
Malware
File Type:
SCRIPT
Threat name:
Script-WScript.Backdoor.FormBook
Status:
Malicious
First seen:
2025-04-15 10:08:30 UTC
File Type:
Text (VBS)
AV detection:
6 of 24 (25.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 26 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
8/10
Tags:
discovery execution
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Blocklisted process makes network request
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
|---|---|
| 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.
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