MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4af155941c33440f41066c2921cf11751dec770659ea2addcdbad749ccbc84cb. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4af155941c33440f41066c2921cf11751dec770659ea2addcdbad749ccbc84cb
SHA3-384 hash: a439855f27b676df4a522fbd348b254f838072fc840ca563f900c1c398f70d147952e5e9b78b877a4b5d9ebeda6189d7
SHA1 hash: 7ec8aa8ddc6f2e8e9478720c4154f32a1dc06d10
MD5 hash: 8a76a2ced525edff8f43f8301dd903ad
humanhash: california-mexico-shade-summer
File name:MT103 PAYMENT 67839900290.vbs
Download: download sample
Signature Formbook
Create hunting rule
File size:23'705 bytes
First seen:2026-04-09 07:03:56 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 384:K82bJOQ5Dv/TijpYActBf5eKVBsJhc0xu1ZFxx5KbS9+Su7djmWY1C2KwTrWC0s6:KxJWYntJOGE4tlIiJKT6TGXuJjg
TLSH T1D8B2313ECA85DFF00B2B31D1A56F7916A9240327B5382A5D79CFC1993B356508BB00EE
Magika vba
Reporter abuse_ch
Tags:FormBook vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
49
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/60910/
Detection(s):
SecuriteInfo.com.VBS.Obfus-159.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.VBS.Starter.527.2328.4243.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69d74f7e6a61012f6ad04621
Tags:
n/a
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 base64 encrypted evasive guloader masquerade obfuscated powershell powershell
Link:
https://www.filescan.io/uploads/69d74f78c33dc5a985d5cc4b/reports/2a8f7133-30f5-42ea-b817-4ce88fb9416c/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4af155941c33440f41066c2921cf11751dec770659ea2addcdbad749ccbc84cb
Verdict:
Malicious
File Type:
vbs
First seen:
2026-04-07T22:59:00Z UTC
Last seen:
2026-04-10T23:54:00Z UTC
Hits:
~100
Detections:
HEUR:Trojan.Script.Generic HEUR:Trojan-Downloader.Script.Generic PDM:Trojan.Win32.Generic Trojan.JS.SAgent.sb
Link:
https://opentip.kaspersky.com/4af155941c33440f41066c2921cf11751dec770659ea2addcdbad749ccbc84cb/results?tab=lookup
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1895732
Signature
Antivirus detection for URL or domain
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)
Sample has a suspicious name (potential lure to open the executable)
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: Register Wscript In Run Key
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)
Unusual module load detection (module proxying)
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 FormBook
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1895732 Sample: MT103 PAYMENT 67839900290.vbs Startdate: 09/04/2026 Architecture: WINDOWS Score: 100 43 crowe-avvens.site 2->43 45 www.origininfo.in 2->45 47 10 other IPs or domains 2->47 59 Sigma detected: Register Wscript In Run Key 2->59 61 Suricata IDS alerts for network traffic 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 13 other signatures 2->65 12 wscript.exe 1 2->12         started        15 wscript.exe 2->15         started        17 wscript.exe 2->17         started        signatures3 process4 signatures5 77 VBScript performs obfuscated calls to suspicious functions 12->77 79 Suspicious powershell command line found 12->79 81 Wscript starts Powershell (via cmd or directly) 12->81 83 3 other signatures 12->83 19 powershell.exe 15 17 12->19         started        process6 dnsIp7 55 crowe-avvens.site 174.138.181.182, 443, 49687 IS-AS-1US United States 19->55 57 hasteb.in 45.33.64.25, 443, 49686 LINODE-APLinodeLLCUS United States 19->57 67 Writes to foreign memory regions 19->67 69 Suspicious execution chain found 19->69 71 Injects a PE file into a foreign processes 19->71 23 RegAsm.exe 19->23         started        26 conhost.exe 19->26         started        signatures8 process9 signatures10 73 Maps a DLL or memory area into another process 23->73 75 Unusual module load detection (module proxying) 23->75 28 HArcxsgghltgr.exe 23->28 injected process11 signatures12 85 Maps a DLL or memory area into another process 28->85 31 svchost.exe 13 28->31         started        process13 signatures14 87 Tries to steal Mail credentials (via file / registry access) 31->87 89 Tries to harvest and steal browser information (history, passwords, etc) 31->89 91 Modifies the context of a thread in another process (thread injection) 31->91 93 4 other signatures 31->93 34 0ifZxOcW.exe 31->34 injected 37 chrome.exe 31->37         started        39 firefox.exe 31->39         started        process15 dnsIp16 49 origininfo.in 106.0.62.80, 49708, 49709, 49710 TOMATOWEB-BDTomatoWebPvtLimitedBD Bangladesh 34->49 51 naturmedbolivia.com 66.225.221.53, 49716, 80 SERVERCENTRALUS United States 34->51 53 5 other IPs or domains 34->53 41 WerFault.exe 4 37->41         started        process17
Score:
92%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/4af155941c33440f41066c2921cf11751dec770659ea2addcdbad749ccbc84cb
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4af155941c33440f41066c2921cf11751dec770659ea2addcdbad749ccbc84cb/
Verdict:
Malicious
Threat:
Trojan.JS.SAgent
Link:
https://tip.neiki.dev/file/4af155941c33440f41066c2921cf11751dec770659ea2addcdbad749ccbc84cb
Threat name:
Script-WScript.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2026-04-08 07:32:29 UTC
File Type:
Text (VBS)
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jlyvlfa4gnca6qignqusdtyrouo6y5yglhvcvxonxlluttf4qtfq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
defense_evasion discovery execution persistence
Link:
https://tria.ge/reports/260409-hv8btacx7x/
Behaviour
Kills process with taskkill
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
Adds Run key to start application
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
Link:
https://yomi.yoroi.company/submissions/4af155941c33440f41066c2921cf11751dec770659ea2addcdbad749ccbc84cb

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
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/60910/

Comments