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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ea937ef5064740187d5bd0a2bc03da097ab01fa1fcfaefed4c1204e62bc1be0. 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


GuLoader


Vendor detections: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8ea937ef5064740187d5bd0a2bc03da097ab01fa1fcfaefed4c1204e62bc1be0
SHA3-384 hash: fb7b15f227d6ed046074fe69e0e5a393ea81dff0c085cf9bdcbc8b82cdab22a08f7367aaf056e0fad17b4c7b23974093
SHA1 hash: 3af6959b543e103fb677d6065b2f439503dcd0a5
MD5 hash: f28392a49325f717f7ed5e20708652b8
humanhash: sad-moon-five-hot
File name:Booking-Batch-B-0013.vbs
Download: download sample
Signature GuLoader
Create hunting rule
File size:34'025 bytes
First seen:2026-10-05 09:01:59 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 768:KeY7foryWX+m5wPtDqUAwq97h9ncBWGvnc9Ug1osltocyd:QDmpX35wq97hCf/1JGOd
TLSH T1FFE2421EF50ABFFC09193526B51BAC1AAA1003B5B83C654D3D8FC25C3B7AB148FC15A6
Magika vba
Reporter abuse_ch
Tags:GuLoader vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
93
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/90683/
Detection(s):
SecuriteInfo.com.VBS.DownLoader.4642.20251.21367.UNOFFICIAL
Create hunting rule

Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6ac367a7ac43f24c4a3ea2a0/reports/361f8cd2-41ea-4712-98cf-ffde72f81e5e/overview
Verdict:
Malicious
Labled as:
Trojan/VBS.Obfuscated.ff
Link:
https://www.hybrid-analysis.com/sample/8ea937ef5064740187d5bd0a2bc03da097ab01fa1fcfaefed4c1204e62bc1be0
Verdict:
Malicious
File Type:
vbs
First seen:
2026-10-04T21:29:00Z UTC
Last seen:
2026-10-07T07:41:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/8ea937ef5064740187d5bd0a2bc03da097ab01fa1fcfaefed4c1204e62bc1be0/results?tab=lookup
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1982214
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
Antivirus detection for URL or domain
Excessive usage of taskkill to terminate processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Bypass UAC via Fodhelper.exe
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
UAC bypass detected (Fodhelper)
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 Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1982214 Sample: Booking-Batch-B-0013.vbs Startdate: 05/10/2026 Architecture: WINDOWS Score: 100 103 mr-b01.tm-azurefd.net 2->103 105 casoneroutegold-prod-bggfgca0dkaag8a8.b01.azurefd.net 2->105 107 Suricata IDS alerts for network traffic 2->107 109 Malicious sample detected (through community Yara rule) 2->109 111 Antivirus detection for URL or domain 2->111 113 9 other signatures 2->113 10 wscript.exe 1 2->10         started        13 wscript.exe 2->13         started        15 wscript.exe 2->15         started        17 6 other processes 2->17 signatures3 process4 signatures5 123 VBScript performs obfuscated calls to suspicious functions 10->123 125 Wscript starts Powershell (via cmd or directly) 10->125 127 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->127 129 Suspicious execution chain found 10->129 19 powershell.exe 10->19         started        131 WScript reads language and country specific registry keys (likely country aware script) 13->131 22 powershell.exe 13->22         started        24 powershell.exe 15->24         started        26 powershell.exe 17->26         started        28 powershell.exe 17->28         started        30 powershell.exe 17->30         started        process6 signatures7 115 Suspicious powershell command line found 19->115 32 powershell.exe 19->32         started        34 powershell.exe 10 19->34         started        38 4 other processes 19->38 42 6 other processes 22->42 36 powershell.exe 24->36         started        44 5 other processes 24->44 46 6 other processes 26->46 48 2 other processes 28->48 50 2 other processes 30->50 process8 file9 56 3 other processes 32->56 59 2 other processes 34->59 61 2 other processes 36->61 89 C:\Users\user\AppData\Local\...\03sfe0d2.dll, PE32 38->89 dropped 91 C:\ProgramData\amb.vbs, ASCII 38->91 dropped 63 4 other processes 38->63 93 C:\Users\user\AppData\Local\...\ybzqpuri.dll, PE32 42->93 dropped 65 9 other processes 42->65 95 C:\Users\user\AppData\Local\...\oqaekhbm.dll, PE32 44->95 dropped 67 6 other processes 44->67 97 C:\Users\user\AppData\Local\...\uctokpas.dll, PE32 46->97 dropped 117 UAC bypass detected (Fodhelper) 46->117 69 7 other processes 46->69 99 C:\Users\user\AppData\Local\...\tsccb4za.dll, PE32 48->99 dropped 52 cvtres.exe 48->52         started        101 C:\Users\user\AppData\Local\...\4qp0h3yw.dll, PE32 50->101 dropped 54 cvtres.exe 50->54         started        signatures10 process11 signatures12 119 Writes to foreign memory regions 56->119 77 4 other processes 56->77 71 taskkill.exe 1 59->71         started        73 taskkill.exe 1 59->73         started        79 2 other processes 59->79 81 4 other processes 61->81 75 AppLaunch.exe 63->75         started        83 9 other processes 65->83 85 5 other processes 67->85 121 Excessive usage of taskkill to terminate processes 69->121 87 8 other processes 69->87 process13
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/8ea937ef5064740187d5bd0a2bc03da097ab01fa1fcfaefed4c1204e62bc1be0
Verdict:
Malware
YARA:
1 match(es)
Tags:
COM Behavior Trace DeObfuscated Obfuscated SOS: 0.65 T1027 T1059 T1059.005 VBScript WScript.Network WScript.Shell
Link:
https://app.malva.re/file/f28392a49325f717f7ed5e20708652b8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8ea937ef5064740187d5bd0a2bc03da097ab01fa1fcfaefed4c1204e62bc1be0/
Threat name:
Script-WScript.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2026-10-05 01:07:15 UTC
File Type:
Text (VBS)
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r2utp32qmr2adb6vxufcxqb5ucl2wap2d7h257wuyeqe4yv4dpqa._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
collection defense_evasion discovery execution persistence
Link:
https://tria.ge/reports/261005-kzxrzssxbz/
Behaviour
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Executes a command shell one-liner
Executes a VBScript file via the Windows Script Host.
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Enumerates connected drives
Looks up external IP address via web service
Checks computer location settings
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
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/8ea937ef5064740187d5bd0a2bc03da097ab01fa1fcfaefed4c1204e62bc1be0

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:MULTI_Malware_GuLoader_ForgeAuto_2fbadefd
Create hunting rule
Author:Marjoriefort
Description:Detects GuLoader (inconnu, etat binaire)

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/90683/

Comments