MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 58d4089e9f0cdca9c5ae58c5befddd0c8cebbd81bfee49cb2efbdc4c279a7963. 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: | 58d4089e9f0cdca9c5ae58c5befddd0c8cebbd81bfee49cb2efbdc4c279a7963 |
|---|---|
| SHA3-384 hash: | 0c51a4a341aa731748a71ada68c4bce94ec4610188a8e2d4149885b9e24c761699c4b4c9064af6bb4cd75615aa56ff40 |
| SHA1 hash: | 351e4381514b7692e6336b1d63a14164532ab1ba |
| MD5 hash: | eade27bef2bc21e3d9e9eb8a908e3cb8 |
| humanhash: | yankee-indigo-mexico-twelve |
| File name: | QUOTATION #45468709-96570-01.vbs |
| Download: | download sample |
| Signature | Formbook |
| File size: | 23'609 bytes |
| First seen: | 2026-04-09 07:58:08 UTC |
| Last seen: | Never |
| File type: |  vbs |
| MIME type: | text/plain |
| ssdeep | 384:KEPpP0L4oTaU697QDuceSmQQOjqzhpkNTjcyPFp2TMGAxUp7Ffcw+n5SyCNs1INa:K3KyhFgz27/2T+5Sw4ooYn6Em5tvg |
| Threatray | 2'684 similar samples on MalwareBazaar |
| TLSH | T164B22F3EC945DFF00B2A31A5B62F7A15A9540323B5382A4DB9CF80993B39650CBB51ED |
| Magika | vba |
| Reporter |  abuse_ch |
| Tags: | FormBook vbs |
Intelligence
File Origin
# of uploads :
1
# of downloads :
68
Origin country :
SEVendor Threat Intelligence
No detections
Detection:
n/a
Verdict:
Clean
Score:
70%
Tags:
n/a
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
base64 base64 encrypted evasive guloader obfuscated powershell powershell
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Malicious
File Type:
vbs
First seen:
2026-04-06T08:49:00Z UTC
Last seen:
2026-04-10T11:38:00Z UTC
Hits:
~100
Detections:
PDM:Trojan.Win32.Generic Trojan.JS.SAgent.sb HEUR:Trojan.Script.Generic HEUR:Trojan-Downloader.Script.Generic
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Signature
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)
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Net WebClient Casing Anomalies
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
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
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 reads language and country specific registry keys (likely country aware script)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Score:
92%
Verdict:
Malware
File Type:
SCRIPT
Verdict:
Malware
YARA:
1 match(es)
Tags:
Scripting.Dictionary Scripting.FileSystemObject VBScript WScript.Network WScript.Shell
Verdict:
Malicious
Threat:
Trojan.JS.SAgent
Threat name:
Win32.Trojan.Kepavll
Status:
Malicious
First seen:
2026-04-06 13:22:01 UTC
File Type:
Text (VBS)
AV detection:
11 of 36 (30.56%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 2'674 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
8/10
Tags:
execution
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Badlisted 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 |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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