MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c1a9bbd83fb51bd76cb2891dee3ed8d09b698c4d224e84cbe711eb8a2ed4fbd9. 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


XWorm


Vendor detections: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c1a9bbd83fb51bd76cb2891dee3ed8d09b698c4d224e84cbe711eb8a2ed4fbd9
SHA3-384 hash: a609f5e94ab6a694ab5b840a1cbac77f2722089723944b0af784d1852b6ccb2a8bd02edc7af0dff582b2177f20c8f3a1
SHA1 hash: 15223a2f90a07d0d264f14031a52a65a2738b83a
MD5 hash: 5d0187e315d4b6e97f19e5f8b0158ff4
humanhash: fourteen-montana-bacon-freddie
File name:Quotation.vbs
Download: download sample
Signature XWorm
Create hunting rule
File size:2'589'167 bytes
First seen:2026-06-29 12:38:22 UTC
Last seen:2026-06-30 06:38:45 UTC
File type:Visual Basic Script (vbs) vbs
MIME type:text/csv
ssdeep 768:TAoIv9rCIhiH9jmsSfF3DRKcB5WZS8iO4DqwkErnB1hbzzDOmAg+m7s9S9Gh95bb:Tjn
TLSH T190C5786D17CC666EB201FFE1C61B6F1BAF1A2F83258084D566F99D9FCCA4045B3980B4
Magika txt
Reporter James_inthe_box
Tags:exe vbs xworm

Intelligence

File Origin
# of uploads :
3
# of downloads :
150
Origin country :
US US
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/72359/
Detection(s):
SecuriteInfo.com.VBS.Starter.539.24497.5205.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a4267491548daf709faf4b2
Tags:
ransomware autorun shell virus
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
formbook obfuscated
Link:
https://www.filescan.io/uploads/6a426744e1921c73c4dfc83e/reports/8db5bf52-ac99-47bf-8b91-17a516b97752/overview
Verdict:
Malicious
Labled as:
Formbook
Link:
https://www.hybrid-analysis.com/sample/c1a9bbd83fb51bd76cb2891dee3ed8d09b698c4d224e84cbe711eb8a2ed4fbd9
Verdict:
Malicious
File Type:
text.utf8
First seen:
2026-06-25T06:25:00Z UTC
Last seen:
2026-06-30T11:09:00Z UTC
Hits:
~1000
Detections:
Trojan.VBS.SAgent.sb Trojan.JS.SAgent.sb HEUR:Trojan.Script.Generic HEUR:Trojan-Downloader.Script.Generic
Link:
https://opentip.kaspersky.com/c1a9bbd83fb51bd76cb2891dee3ed8d09b698c4d224e84cbe711eb8a2ed4fbd9/results?tab=lookup
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1933726
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates processes via WMI
Detected large data written to user environment variables, potentially indicating payload staging for fileless execution
Drops VBS files to the startup folder
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Copy file to startup via Powershell
Sigma detected: Drops script at startup location
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
Tries to harvest and steal browser information (history, passwords, etc)
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 AntiVM3
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1933726 Sample: Quotation 3700013971.vbs Startdate: 25/06/2026 Architecture: WINDOWS Score: 100 56 keyauth.win 2->56 58 brenmayasociados.com 2->58 74 Suricata IDS alerts for network traffic 2->74 76 Found malware configuration 2->76 78 Malicious sample detected (through community Yara rule) 2->78 80 14 other signatures 2->80 9 powershell.exe 15 2->9         started        13 wscript.exe 2 1 2->13         started        15 wscript.exe 2 1 2->15         started        signatures3 process4 dnsIp5 60 brenmayasociados.com 50.87.145.2, 443, 62810, 62817 ORACLE-BMC-31898-OracleCorporationUS United States 9->60 82 Writes to foreign memory regions 9->82 84 Injects a PE file into a foreign processes 9->84 17 CasPol.exe 3 5 9->17         started        21 conhost.exe 9->21         started        23 CasPol.exe 9->23         started        86 Suspicious powershell command line found 13->86 88 Wscript starts Powershell (via cmd or directly) 13->88 90 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->90 94 2 other signatures 13->94 25 powershell.exe 13 13->25         started        92 Detected large data written to user environment variables, potentially indicating payload staging for fileless execution 15->92 28 powershell.exe 15 15->28         started        signatures6 process7 dnsIp8 54 203.202.232.149, 2222, 62816 WHITELABELUS Turkey 17->54 62 Tries to harvest and steal browser information (history, passwords, etc) 17->62 64 Installs a global keyboard hook 17->64 30 CasPol.exe 17->30         started        33 csc.exe 17->33         started        66 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 23->66 52 C:\Users\user\...\Quotation 3700013971.vbs, CSV 25->52 dropped 68 Drops VBS files to the startup folder 25->68 36 conhost.exe 25->36         started        70 Writes to foreign memory regions 28->70 72 Injects a PE file into a foreign processes 28->72 38 conhost.exe 28->38         started        40 CasPol.exe 28->40         started        42 CasPol.exe 28->42         started        44 CasPol.exe 28->44         started        file9 signatures10 process11 file12 96 Antivirus detection for dropped file 30->96 50 C:\Users\user\AppData\Local\Temp\CasPol.exe, PE32 33->50 dropped 46 conhost.exe 33->46         started        48 cvtres.exe 33->48         started        98 Installs a global keyboard hook 36->98 signatures13 process14
Score:
84%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/c1a9bbd83fb51bd76cb2891dee3ed8d09b698c4d224e84cbe711eb8a2ed4fbd9
Verdict:
Malware
YARA:
2 match(es)
Tags:
Batch Command DeObfuscated Obfuscated PowerShell PowerShell Call Powershell: Hidden Execution Scripting.FileSystemObject T1059.005 VBScript WScript.Shell
Link:
https://app.malva.re/file/5d0187e315d4b6e97f19e5f8b0158ff4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c1a9bbd83fb51bd76cb2891dee3ed8d09b698c4d224e84cbe711eb8a2ed4fbd9/
Verdict:
Malicious
Threat:
Family.XWORM
Link:
https://tip.neiki.dev/file/c1a9bbd83fb51bd76cb2891dee3ed8d09b698c4d224e84cbe711eb8a2ed4fbd9
Threat name:
Script-WScript.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-06-25 13:54:00 UTC
File Type:
Binary
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ygu3xwb7wun5o3fsreo64pwy2cnwtdcnejhijs7hchvyulwu7pmq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution
Link:
https://tria.ge/reports/260629-pvccpsfs7m/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Drops startup file
Badlisted process makes network request
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:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c1a9bbd83fb51bd76cb2891dee3ed8d09b698c4d224e84cbe711eb8a2ed4fbd9

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

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/72359/

Comments