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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 be28a1305cd49e4ebbbe10d3be4d70d2c44f5320a123ed18b6ca7ac10f7f8b72. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: be28a1305cd49e4ebbbe10d3be4d70d2c44f5320a123ed18b6ca7ac10f7f8b72
SHA3-384 hash: 15e9219f3cdeba5976d279fe123390797cdb676ca740884d2897304129cc8074f8e948edfd49977f0789674ca9f9a355
SHA1 hash: fdd692a016fd7e0ff9aa4124cda7292ca5362ff9
MD5 hash: 66f893c25af98f5ba3874b839da4fed1
humanhash: hotel-nebraska-mobile-foxtrot
File name:Beschaffungsvalidierung erforderlich – Bestellnummer 903097802.js
Download: download sample
Signature GuLoader
Create hunting rule
File size:886'143 bytes
First seen:2025-12-01 14:39:36 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 6144:80r40rZ0r/x0r/A0rI0r40rH0ru0r/w0r/B0r/gsV0rj0M0D0rN0r/0r70rC0r/Y:U
TLSH T1D6155B60DD2407EA4F8B17DD7C950A82C9BDC20A551754F2F6C90B8E72068DCE3BE6B9
Magika javascript
Reporter lowmal3
Tags:GuLoader js

Intelligence

File Origin
# of uploads :
1
# of downloads :
115
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.26863.JsHeur.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=692d9f67c908fdc697475acc
Tags:
n/a
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade repaired
Link:
https://www.filescan.io/uploads/692da8d3d3e8b4b5f93f6f52/reports/1b82245d-152e-4ffd-a180-e88eca1bd9a2/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/be28a1305cd49e4ebbbe10d3be4d70d2c44f5320a123ed18b6ca7ac10f7f8b72
Verdict:
Malicious
File Type:
js
First seen:
2025-12-01T09:05:00Z UTC
Last seen:
2025-12-03T12:06:00Z UTC
Hits:
~1000
Detections:
Trojan.JS.SAgent.sb HEUR:Trojan-Downloader.Script.Generic HEUR:Trojan.Script.Generic Trojan.PowerShell.Strion.sb HEUR:Trojan.Script.SAgent.gen
Link:
https://opentip.kaspersky.com/be28a1305cd49e4ebbbe10d3be4d70d2c44f5320a123ed18b6ca7ac10f7f8b72/results?tab=lookup
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1823631
Signature
Creates processes via WMI
Early bird code injection technique detected
Found suspicious powershell code related to unpacking or dynamic code loading
JavaScript source code contains functionality to generate code involving a shell, file or stream
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Obfuscated command line found
Queues an APC in another process (thread injection)
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Switches to a custom stack to bypass stack traces
Unusual module load detection (module proxying)
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 GuLoader
Yara detected Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1823631 Sample: Beschaffungsvalidierung erf... Startdate: 01/12/2025 Architecture: WINDOWS Score: 100 35 rsinmobiliaria.pe 2->35 37 r12.c.lencr.org 2->37 43 Malicious sample detected (through community Yara rule) 2->43 45 Yara detected GuLoader 2->45 47 Yara detected Powershell decode and execute 2->47 49 3 other signatures 2->49 9 powershell.exe 18 2->9         started        12 wscript.exe 1 1 2->12         started        signatures3 process4 signatures5 53 Early bird code injection technique detected 9->53 55 Writes to foreign memory regions 9->55 57 Found suspicious powershell code related to unpacking or dynamic code loading 9->57 67 3 other signatures 9->67 14 msiexec.exe 2 7 9->14         started        18 msiexec.exe 9->18         started        20 conhost.exe 9->20         started        59 Wscript starts Powershell (via cmd or directly) 12->59 61 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->61 63 Suspicious execution chain found 12->63 65 Creates processes via WMI 12->65 22 powershell.exe 14 16 12->22         started        process6 dnsIp7 39 r12.c.lencr.org 104.18.20.213, 49697, 49708, 49739 CLOUDFLARENETUS United States 14->39 69 Obfuscated command line found 14->69 24 cmd.exe 1 14->24         started        27 msiexec.exe 14->27         started        71 Unusual module load detection (module proxying) 18->71 41 rsinmobiliaria.pe 198.252.102.146, 443, 49690, 49696 HAWKHOSTCA Canada 22->41 73 Found suspicious powershell code related to unpacking or dynamic code loading 22->73 29 conhost.exe 22->29         started        signatures8 process9 signatures10 51 Obfuscated command line found 24->51 31 conhost.exe 24->31         started        33 reg.exe 1 1 24->33         started        process11
Score:
92%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/be28a1305cd49e4ebbbe10d3be4d70d2c44f5320a123ed18b6ca7ac10f7f8b72
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/be28a1305cd49e4ebbbe10d3be4d70d2c44f5320a123ed18b6ca7ac10f7f8b72/
Threat name:
Script-JS.Trojan.Sonbokli
Create hunting rule
Status:
Malicious
First seen:
2025-12-01 12:02:12 UTC
File Type:
Text
AV detection:
1 of 38 (2.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xyukcmc42spe5o56cdj34tlq2lce6uzauer62gfwzj5mcd37rnza._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution
Link:
https://tria.ge/reports/251201-r11zcscr3z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Command and Scripting Interpreter: JavaScript
Badlisted process makes network request
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/be28a1305cd49e4ebbbe10d3be4d70d2c44f5320a123ed18b6ca7ac10f7f8b72

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:dependsonpythonailib
Create hunting rule
Author:Tim Brown
Description:Hunts for dependencies on Python AI libraries
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.

Malspam

GuLoader

Java Script (JS) js be28a1305cd49e4ebbbe10d3be4d70d2c44f5320a123ed18b6ca7ac10f7f8b72

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments