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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa41b8b20fe998952a24711d0bcd170e2b33b18e3bb8feb582e3611c4ffb387c. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aa41b8b20fe998952a24711d0bcd170e2b33b18e3bb8feb582e3611c4ffb387c
SHA3-384 hash: ef7ae2fe0f74c645fdb61c441b1d227214a20b8e5336cf3fa8110c3c431a9485e1db176066b3ca49942679d6e7c42e97
SHA1 hash: cbd6a2da7229c85054bb67bab23ca19e58a53468
MD5 hash: c5568196450c7c6850854128b4d0a5ce
humanhash: artist-rugby-violet-vermont
File name:Justificante_de_Transferencia_Bancaria.js
Download: download sample
Signature GuLoader
Create hunting rule
File size:137'895 bytes
First seen:2026-11-04 10:51:15 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 3072:/3WmTrlmXj+4pSFE1lzrUY7EiJyZNuiqcBwwwg:/3Wm9my4YS1NCYyDuiq7wb
TLSH T1C7D35C60CD25067A0F476B6CFCA50A61C9BD83098227C4B1F6DD870D62459ECF3BD6AE
Magika javascript
Reporter abuse_ch
Tags:GuLoader js

Intelligence

File Origin
# of uploads :
1
# of downloads :
173
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.JS.Agent.FIP.29116.11618.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6aeb0e413970fcef1e4b021b
Tags:
uloader virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Using the Windows Management Instrumentation requests
Sending a custom TCP request
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
Creating a file in the Windows directory
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated repaired
Link:
https://www.filescan.io/uploads/6aeb0e37766f85dac3aad8c6/reports/cda5f461-d0cc-41a5-b3f8-59ed512302bd/overview
Verdict:
Suspicious
Labled as:
JS/Agent.FIP
Link:
https://www.hybrid-analysis.com/sample/aa41b8b20fe998952a24711d0bcd170e2b33b18e3bb8feb582e3611c4ffb387c
Verdict:
Malicious
File Type:
js
First seen:
2026-11-04T06:20:00Z UTC
Last seen:
2026-11-05T06:26:00Z UTC
Hits:
~10000
Link:
https://opentip.kaspersky.com/aa41b8b20fe998952a24711d0bcd170e2b33b18e3bb8feb582e3611c4ffb387c/results?tab=lookup
Gathering data
Score:
97%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/aa41b8b20fe998952a24711d0bcd170e2b33b18e3bb8feb582e3611c4ffb387c
Verdict:
inconclusive
YARA:
2 match(es)
Tags:
Javascript T1059.007
Link:
https://app.malva.re/file/c5568196450c7c6850854128b4d0a5ce
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aa41b8b20fe998952a24711d0bcd170e2b33b18e3bb8feb582e3611c4ffb387c/
Threat name:
Win32.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2026-11-04 10:52:26 UTC
File Type:
Text (JavaScript)
AV detection:
6 of 24 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vja3rmqp5gmjkkreoeoqxtixbyvthmmoho4p5nmc4nqryt73hb6a._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
defense_evasion discovery execution
Link:
https://tria.ge/reports/261104-mx1f7svy2m/
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
Suspicious use of NtSetInformationThreadHideFromDebugger
Contacts third-party web service commonly abused for C2
Checks QEMU agent file
Badlisted process makes network request
Process spawned unexpected child process
Malware Family:
cloudeye
Create hunting rule
Malicious:
True
Tags:
persistence idle calls-wmi obfuscated long-sleeps javascript
Link:
https://intel.virussign.com/intelligence/file/aa41b8b20fe998952a24711d0bcd170e2b33b18e3bb8feb582e3611c4ffb387c
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/aa41b8b20fe998952a24711d0bcd170e2b33b18e3bb8feb582e3611c4ffb387c

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)
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