MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f354bdb3557ffb64892e788c439adc0da9f7fd4f39b143a1cc2d8f7059b4488. 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


AsyncRAT


Vendor detections: 11


Intelligence 11 IOCs YARA 1 File information Comments
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SHA256 hash: 3f354bdb3557ffb64892e788c439adc0da9f7fd4f39b143a1cc2d8f7059b4488
SHA3-384 hash: 6613919a59b13abc7ad0290ac82583f534800dad4e09d9cfaa3f3128acdd4eb876119cd00e93ebd163d3f6d2aa1eca14
SHA1 hash: d54cce9d9a238310b00d154c9f35033e62ca1d81
MD5 hash: 82bf71f9d463c60e2304cbf9f9cac022
humanhash: pluto-charlie-oscar-oklahoma
File name:PNSBt.js
Download: download sample
Signature AsyncRAT
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File size:106'348 bytes
First seen:2024-11-20 19:34:45 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 3072:MHXp+q62Nhxdd5pdq61HXp+q62Nhxdd5pdqsVd0HXp+q62Nhxdd5pdq61HXp+q61:k3/13jc3/13+
Threatray 3'250 similar samples on MalwareBazaar
TLSH T152A3E35456897803A438D0679C2F43626AFB09C4954DC8EF36DE9BED3F403B8F6DA189
Magika javascript
Reporter JAMESWT_WT
Tags:19nov2024-duckdns-org AsyncRAT js

Intelligence

File Origin
# of uploads :
1
# of downloads :
412
Origin country :
IT IT
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.JS.Trojan.Cryxos.14021.32402.5890.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=673e3aaf1ff01536674757b1
Tags:
vmdetect cryxos gumen
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm anti-vm obfuscated powershell
Link:
https://www.filescan.io/uploads/673e39eab69d0b08b679563e/reports/c6b93656-09b1-4685-ac23-f22c4cca403e/overview
Verdict:
Malicious
Labled as:
Trojan.Cryxos.JS
Link:
https://www.hybrid-analysis.com/sample/3f354bdb3557ffb64892e788c439adc0da9f7fd4f39b143a1cc2d8f7059b4488
Result
Threat name:
AsyncRAT
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Detection:
malicious
Classification:
spre.troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1559696
Signature
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Connects to a pastebin service (likely for C&C)
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
JavaScript source code contains functionality to generate code involving a shell, file or stream
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Obfuscated command line found
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Paste sharing url in reverse order
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
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 AsyncRAT
Yara detected Generic Downloader
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1559696 Sample: PNSBt.js Startdate: 20/11/2024 Architecture: WINDOWS Score: 100 25 19nov2024.duckdns.org 2->25 27 paste.ee 2->27 29 8 other IPs or domains 2->29 41 Suricata IDS alerts for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 51 12 other signatures 2->51 9 wscript.exe 1 1 2->9         started        signatures3 47 Uses dynamic DNS services 25->47 49 Connects to a pastebin service (likely for C&C) 27->49 process4 signatures5 55 JScript performs obfuscated calls to suspicious functions 9->55 57 Suspicious powershell command line found 9->57 59 Wscript starts Powershell (via cmd or directly) 9->59 61 3 other signatures 9->61 12 powershell.exe 7 9->12         started        process6 signatures7 63 Suspicious powershell command line found 12->63 65 Obfuscated command line found 12->65 67 Found suspicious powershell code related to unpacking or dynamic code loading 12->67 15 powershell.exe 14 16 12->15         started        19 conhost.exe 12->19         started        process8 dnsIp9 33 ip.1017.filemail.com 142.215.209.78, 443, 49701 HUMBER-COLLEGECA Canada 15->33 35 paste.ee 172.67.187.200, 443, 49753 CLOUDFLARENETUS United States 15->35 37 Writes to foreign memory regions 15->37 39 Injects a PE file into a foreign processes 15->39 21 MSBuild.exe 2 15->21         started        signatures10 process11 dnsIp12 31 19nov2024.duckdns.org 191.93.117.49, 49772, 9003 ColombiaMovilCO Colombia 21->31 53 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 21->53 signatures13
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/3f354bdb3557ffb64892e788c439adc0da9f7fd4f39b143a1cc2d8f7059b4488
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3f354bdb3557ffb64892e788c439adc0da9f7fd4f39b143a1cc2d8f7059b4488/
Threat name:
Script-JS.Trojan.Cryxos
Create hunting rule
Status:
Malicious
First seen:
2024-11-20 18:54:27 UTC
File Type:
Text (JavaScript)
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h42uxwzvk773mses46emionnydnj676u6onrioq4ylmpobm3isea._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
35c73c6c8bed8697de74b1509caf030fae69fb856edefc47342adde573da928c
AsyncRAT
5732891fc200a9a59fdf3b2f96d5977152d1b76eb7220c8fcb28fc476945cddc
AsyncRAT
6bb2386101837fd4e8a32018f2d8ec5bbd646bef9a5513783f782fe2ae1ff3e0
AsyncRAT
adc29eb24db484b14101ce4ab0e8eeda1586009dd65f980e596c8fa45703678c
AsyncRAT
bdd678604bbefecbc2b54dfd55b1cd677e151bf1e5ee59ab2860363c27d73d16
AsyncRAT
c72c02aa10e6609c29969f89b655aa99c7416aa87b391cf877fb1d31982bab66
AsyncRAT
error
AsyncRAT
+ 3'240 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:*** 19 nov *** discovery execution rat
Link:
https://tria.ge/reports/241120-yb8q8swpbq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
19nov2024.duckdns.org:9003
Dropper Extraction:
https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f
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/3f354bdb3557ffb64892e788c439adc0da9f7fd4f39b143a1cc2d8f7059b4488

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:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

AsyncRAT

Java Script (JS) js 3f354bdb3557ffb64892e788c439adc0da9f7fd4f39b143a1cc2d8f7059b4488

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3297539/
  
Delivery method
Distributed via web download

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