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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f388fa2ebe4fbaf8dc405dc59af73c8185875f9e50e3f00c0e457c065daf3ba. 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


AgentTesla


Vendor detections: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5f388fa2ebe4fbaf8dc405dc59af73c8185875f9e50e3f00c0e457c065daf3ba
SHA3-384 hash: 32bc634b4d4a3bcb18f7973323a15dab5f128717d21aa2e0c78bcde83f098b573e8cab35885538c3444cdebde99b8669
SHA1 hash: 2f89d1864d07223a076569813f7e5340028fef07
MD5 hash: 8fec6a09ab42d609baf4f6efda15d367
humanhash: bakerloo-texas-blue-finch
File name:VAV-676_Quote15202610.js
Download: download sample
Signature AgentTesla
Create hunting rule
File size:218'385 bytes
First seen:2026-10-21 21:20:23 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 6144:zOKLJ7tv0JQP6Ifz7jNUPczqI86SMXgrRDSM:Xg+xj2I8jmM
TLSH T185245C60DE34067A4F47279EFCE50B6289BD8619822750F5F6DD071E61025ECE3BE368
Magika javascript
Reporter TomU
Tags:AgentTesla js

Intelligence

File Origin
# of uploads :
1
# of downloads :
158
Origin country :
CH CH
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.JS.Muldrop.1575.6701.17360.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ad92cd3afb06e650cd86a90
Tags:
virus agent sage
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated repaired
Link:
https://www.filescan.io/uploads/6ad92ccf6eba3e9fc3f2eaf9/reports/5b04e2d1-4ee6-4aea-bc65-7aded6d45ff4/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/5f388fa2ebe4fbaf8dc405dc59af73c8185875f9e50e3f00c0e457c065daf3ba
Verdict:
Malicious
File Type:
js
First seen:
2026-10-15T06:05:00Z UTC
Last seen:
2026-10-23T19:26:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/5f388fa2ebe4fbaf8dc405dc59af73c8185875f9e50e3f00c0e457c065daf3ba/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/1987475
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
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: 1987475 Sample: VAV-676 Quote15202610.js Startdate: 15/10/2026 Architecture: WINDOWS Score: 100 27 somarrepresentacoes.com.br 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 1 225 12->15         started        19 conhost.exe 12->19         started        21 cmd.exe 1 12->21         started        process8 dnsIp9 29 somarrepresentacoes.com.br 177.53.143.68, 443, 49712 BrasilSiteInformaticaLTDABR Brazil 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 Hides threads from debuggers 15->35 37 2 other signatures 15->37 23 backgroundTaskHost.exe 15->23         started        25 backgroundTaskHost.exe 15->25         started        signatures10 process11
Score:
93%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/5f388fa2ebe4fbaf8dc405dc59af73c8185875f9e50e3f00c0e457c065daf3ba
Gathering data
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5f388fa2ebe4fbaf8dc405dc59af73c8185875f9e50e3f00c0e457c065daf3ba/
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2026-10-15 12:22:10 UTC
File Type:
Text (JavaScript)
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=l44i7ixl4t527doeaxoftl3tzamfq5pz4uhd6aga4rl4azo26o5a._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution
Link:
https://tria.ge/reports/261021-z6z81sfz3y/
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
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/5f388fa2ebe4fbaf8dc405dc59af73c8185875f9e50e3f00c0e457c065daf3ba

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.

Malspam

AgentTesla

Java Script (JS) js 5f388fa2ebe4fbaf8dc405dc59af73c8185875f9e50e3f00c0e457c065daf3ba

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments