🤲🏼 NEW | abuse.ch Community Hub! Earn recognition 🏅 for the malware intelligence you share, climb the leaderboards 📈, and connect with like-minded contributors who share your hunting focus 🤝. Ready to unlock your profile? Go to the Community Hub →

MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5d7ceba974bd4eba1223f6734bca2d2e66950a98baee614e998eff8cb8e29d4. 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: 11


Intelligence 11 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f5d7ceba974bd4eba1223f6734bca2d2e66950a98baee614e998eff8cb8e29d4
SHA3-384 hash: 358cc10929e0eabfbc55bb88c5d0e8e912afc81a584be2351b2d1e164450c3f98d0e0d31be728233253503e8b59d7894
SHA1 hash: 2ad0b842c3e94e100979a3ae18df799176d18506
MD5 hash: 4590d9e490acb7fbf577602fec76734c
humanhash: quebec-cat-october-thirteen
File name:RPF1920485_20261104.js
Download: download sample
Signature GuLoader
Create hunting rule
File size:212'648 bytes
First seen:2026-11-04 09:32:59 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 6144:Sin0I2YnnDCQzTg4Zx+n3KvzNuqnZFwlkH6u:S3sgh3iOkF
TLSH T165246C30DD25057A4F875B99FCA80B61CABCC215862741F0F5DD870E610A9ECE3BE66E
Magika javascript
Reporter ni_fi_701
Tags:GuLoader js

Intelligence

File Origin
# of uploads :
1
# of downloads :
183
Origin country :
AT AT
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Script.SNH-gen.82726451.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6aeafbe23970fcef1e4b0015
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Launching a process
Deleting a recently created file
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the Windows directory
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated repaired
Link:
https://www.filescan.io/uploads/6aeafbe0814e136294416c00/reports/4bcef4fd-3226-486f-8770-8131bd5033ca/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/f5d7ceba974bd4eba1223f6734bca2d2e66950a98baee614e998eff8cb8e29d4
Verdict:
Malicious
File Type:
js
First seen:
2026-11-04T05:06:00Z UTC
Last seen:
2026-11-05T04:57:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/f5d7ceba974bd4eba1223f6734bca2d2e66950a98baee614e998eff8cb8e29d4/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/1998030
Signature
Creates processes via WMI
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
Malicious sample detected (through community Yara rule)
Obfuscated command line found
Powershell connects to network
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: 1998030 Sample: RPF1920485_20261104.js Startdate: 04/11/2026 Architecture: WINDOWS Score: 100 27 orexports.com 2->27 39 Malicious sample detected (through community Yara rule) 2->39 41 Yara detected GuLoader 2->41 43 JavaScript source code contains functionality to generate code involving a shell, file or stream 2->43 45 Sigma detected: WScript or CScript Dropper 2->45 9 wscript.exe 1 2->9         started        signatures3 process4 signatures5 47 Wscript starts Powershell (via cmd or directly) 9->47 49 Obfuscated command line found 9->49 51 Windows Scripting host queries suspicious COM object (likely to drop second stage) 9->51 53 2 other signatures 9->53 12 cmd.exe 1 9->12         started        process6 signatures7 55 Wscript starts Powershell (via cmd or directly) 12->55 15 powershell.exe 1 190 12->15         started        19 conhost.exe 12->19         started        21 cmd.exe 1 12->21         started        process8 dnsIp9 29 orexports.com 208.91.199.118, 443, 49718 UNIFIEDLAYER-AS-1-UnifiedLayerUS United States 15->29 31 Writes to foreign memory regions 15->31 33 Found suspicious powershell code related to unpacking or dynamic code loading 15->33 35 Switches to a custom stack to bypass stack traces 15->35 37 Powershell connects to network 15->37 23 backgroundTaskHost.exe 15->23         started        25 backgroundTaskHost.exe 15->25         started        signatures10 process11
Score:
97%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/f5d7ceba974bd4eba1223f6734bca2d2e66950a98baee614e998eff8cb8e29d4
Verdict:
inconclusive
YARA:
3 match(es)
Tags:
Javascript T1059.007
Link:
https://app.malva.re/file/4590d9e490acb7fbf577602fec76734c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f5d7ceba974bd4eba1223f6734bca2d2e66950a98baee614e998eff8cb8e29d4/
Threat name:
Win32.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2026-11-04 08:07:33 UTC
File Type:
Text (JavaScript)
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6xl45ouxjpkoxijch5ttjpfc2ltgsufjroxomfhjtdx7rs4ofhka._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution
Link:
https://tria.ge/reports/261104-ljb11sgz4v/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Executes a command shell one-liner
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
Drops file in Windows directory
Badlisted process makes network request
Process spawned unexpected child process
Malware Family:
guloader
Create hunting rule
Malicious:
True
Tags:
javascript
Link:
https://intel.virussign.com/intelligence/file/f5d7ceba974bd4eba1223f6734bca2d2e66950a98baee614e998eff8cb8e29d4
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.60
Link:
https://yomi.yoroi.company/submissions/f5d7ceba974bd4eba1223f6734bca2d2e66950a98baee614e998eff8cb8e29d4

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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)
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:test_Malaysia
Create hunting rule
Author:rectifyq
Description:Detects file containing malaysia string

File information

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

Comments