MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 791b77c7ccb414a3edf27fc19ad2af606463b520c201f528235e02d9abca2fa8. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 791b77c7ccb414a3edf27fc19ad2af606463b520c201f528235e02d9abca2fa8
SHA3-384 hash: 2fbc74529e6659999dc1cf98d07107be309fd5a1931810fb249b0a601880f7b7e1d0ea7a2fa509c6f1d4d538078235bf
SHA1 hash: 76d5f27209840d54f2c7e015870a2eb258e7510f
MD5 hash: e056fe4708e727a783b54f167c455427
humanhash: butter-chicken-mirror-equal
File name:Ordine da clienti ITALIA - 6320.js
Download: download sample
Signature GuLoader
Create hunting rule
File size:225'747 bytes
First seen:2026-07-15 07:26:39 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 6144:YAewOthBI/sFpg5pUnyzgHRrIP5Q9DBqbhVgtKrIAAbq3mfIp:Y5riUyzg85tbhusUA1
TLSH T125244970DA2002774F87AB98FCB94661C62DD315852705B1FAC98B0D900E9ECF7BD66B
Magika javascript
Reporter abuse_ch
Tags:GuLoader js

Intelligence

File Origin
# of uploads :
1
# of downloads :
154
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.26863.JsHeur.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a5736de56bd89099b5550e9
Tags:
virus agent sage
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 encrypted fingerprint powershell repaired
Link:
https://www.filescan.io/uploads/6a5736e413ec0bd7c630f4fb/reports/f5f0d7a2-9e81-469d-bb67-8d41a1867f9f/overview
Verdict:
Malicious
Labled as:
SVM:TrojanDownloader/JS.MalBehav.gen
Link:
https://www.hybrid-analysis.com/sample/791b77c7ccb414a3edf27fc19ad2af606463b520c201f528235e02d9abca2fa8
Verdict:
Malicious
File Type:
js
First seen:
2026-07-14T09:22:00Z UTC
Last seen:
2026-07-17T05:47:00Z UTC
Hits:
~1000
Detections:
PDM:Trojan.Win32.Generic Trojan.JS.SAgent.sb HEUR:Trojan.Script.SAgent.gen HEUR:Trojan.Script.Generic Trojan.PowerShell.Strion.sb
Link:
https://opentip.kaspersky.com/791b77c7ccb414a3edf27fc19ad2af606463b520c201f528235e02d9abca2fa8/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/1942297
Signature
Creates processes via WMI
Found suspicious powershell code related to unpacking or dynamic code loading
Hides threads from debuggers
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)
Multi AV Scanner detection for submitted file
Obfuscated command line found
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Switches to a custom stack to bypass stack traces
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1942297 Sample: Ordine da clienti ITALIA - ... Startdate: 14/07/2026 Architecture: WINDOWS Score: 100 30 siaasesoria.com.mx 2->30 36 Malicious sample detected (through community Yara rule) 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 Yara detected GuLoader 2->40 42 4 other signatures 2->42 8 wscript.exe 1 1 2->8         started        11 powershell.exe 16 2->11         started        13 svchost.exe 1 1 2->13         started        signatures3 process4 dnsIp5 44 Wscript starts Powershell (via cmd or directly) 8->44 46 Obfuscated command line found 8->46 48 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->48 58 2 other signatures 8->58 16 powershell.exe 15 8->16         started        50 Writes to foreign memory regions 11->50 52 Found suspicious powershell code related to unpacking or dynamic code loading 11->52 54 Hides threads from debuggers 11->54 56 Switches to a custom stack to bypass stack traces 11->56 20 conhost.exe 11->20         started        22 backgroundTaskHost.exe 11->22         started        24 backgroundTaskHost.exe 11->24         started        32 127.0.0.1 unknown unknown 13->32 signatures6 process7 dnsIp8 28 siaasesoria.com.mx 192.185.13.17, 443, 49689 ORACLE-BMC-31898-OracleCorporationUS United States 16->28 34 Found suspicious powershell code related to unpacking or dynamic code loading 16->34 26 conhost.exe 16->26         started        signatures9 process10
Score:
71%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/791b77c7ccb414a3edf27fc19ad2af606463b520c201f528235e02d9abca2fa8
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/791b77c7ccb414a3edf27fc19ad2af606463b520c201f528235e02d9abca2fa8/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=penxpr6mwqkkh3psp7azvuvpmbsghnjayia7kkbdlybntk6kf6ua._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution
Link:
https://tria.ge/reports/260715-ja2h7set9q/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
System Location Discovery: System Language Discovery
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
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/791b77c7ccb414a3edf27fc19ad2af606463b520c201f528235e02d9abca2fa8

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:Cerberus
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:Cerberus
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments