MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3488fe12c3493039d9eddabf5fb04bf9bb3a54bcd591ab911857b602c85f2e66. 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: 10


Intelligence 10 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3488fe12c3493039d9eddabf5fb04bf9bb3a54bcd591ab911857b602c85f2e66
SHA3-384 hash: a3d6af1599d1f7b74fabc818f058a4520e9838dacbca0954086589b422ccc17c685309d3d8cd00156064020bd475f270
SHA1 hash: df5ccb18e15bea95a0b9588cf113e4219b15fe22
MD5 hash: a8d941db4a8f2301c661abff9d0121fa
humanhash: stairway-aspen-blossom-ceiling
File name:password.txt.download
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:1'443 bytes
First seen:2024-05-16 09:50:55 UTC
Last seen:Never
File type:Shortcut (lnk) lnk
MIME type:application/octet-stream
ssdeep 24:8eJ/ByUA+f2FIiiVfEshUMkWUIel+r4I0WJXQ6ci3+hab/opY+f:8UeIvHSnIXXCi3KabopY
TLSH T1292108046AD91711E2B7CE7715BAE20245627CA6EC629F9D429092CD2C64620FCB5F2B
Reporter NDA0E
Tags:lnk xworm


Avatar
NDA0E
http://157.254.165.243:3001/www/password.txt.lnk

XWorm C2: dvaverif.ru:7000 (157.254.165.243:7000)

Intelligence

File Origin
# of uploads :
1
# of downloads :
184
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27118.LnkHeur.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28758.LnkHeur.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30517.LnkHeur.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Generic.BAT.Downloader.N.90DC960B.1645.25985.UNOFFICIAL
Create hunting rule

MiscreantPunch.INFO.LNK.CMDPSHELL.UNOFFICIAL
Create hunting rule

TwinWave.EvilLNK.PkillPSHELLDlAndDetonateFoundationsOfDecay.20220517.UNOFFICIAL
Create hunting rule

TwinWave.EvilLNK.LOLBinOddLookPSHELL.20220711.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malicious
File Type:
LNK File - Malicious
Link:
https://app.docguard.net/3488fe12c3493039d9eddabf5fb04bf9bb3a54bcd591ab911857b602c85f2e66/results/dashboard
Payload URLs
URL
File name
D:\DocGuard-Api\AppData\95734225-36cf-427a-902a-42768549b103\password.txt.download.lnk
LNK File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
88%
Tags:
cmd evasive lolbin masquerade powershell
Link:
https://www.filescan.io/uploads/6645d7064a6f56bc5c8f5a6f/reports/4225d5cb-b6c8-43dc-8872-b842ba9d7fde/overview
Verdict:
Malicious
Labled as:
BAT.Downloader.N.Generic
Link:
https://www.hybrid-analysis.com/sample/3488fe12c3493039d9eddabf5fb04bf9bb3a54bcd591ab911857b602c85f2e66
Result
Verdict:
MALICIOUS
Details
Hidden Powershell
Detected a pivot to Powershell that utilizes commonly nefarious attributes such as '-windowstyle hidden'.
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
rans.troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1442528
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Connects to many ports of the same IP (likely port scanning)
Encrypted powershell cmdline option found
Found URL in windows shortcut file (LNK)
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Sample uses string decryption to hide its real strings
Sigma detected: Potentially Suspicious PowerShell Child Processes
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Encoded PowerShell Command Line
Sigma detected: Suspicious Invoke-WebRequest Execution
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Uses known network protocols on non-standard ports
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Windows shortcut file (LNK) contains suspicious command line arguments
Windows shortcut file (LNK) starts blacklisted processes
Wscript starts Powershell (via cmd or directly)
Yara detected Generic Downloader
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1442528 Sample: password.txt.download.lnk Startdate: 16/05/2024 Architecture: WINDOWS Score: 100 48 dvaverif.ru 2->48 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus detection for URL or domain 2->56 58 Antivirus detection for dropped file 2->58 60 21 other signatures 2->60 12 cmd.exe 1 2->12         started        signatures3 process4 signatures5 72 Windows shortcut file (LNK) starts blacklisted processes 12->72 74 Suspicious powershell command line found 12->74 76 Wscript starts Powershell (via cmd or directly) 12->76 15 powershell.exe 17 20 12->15         started        20 conhost.exe 1 12->20         started        process6 dnsIp7 50 dvaverif.ru 157.254.165.243, 3001, 49730, 49737 BEANFIELDCA United States 15->50 44 C:\Users\user\AppData\Local\Temp\shared.vbs, Unicode 15->44 dropped 52 Powershell drops PE file 15->52 22 wscript.exe 1 1 15->22         started        25 conhost.exe 15->25         started        file8 signatures9 process10 signatures11 64 Windows shortcut file (LNK) starts blacklisted processes 22->64 66 Wscript starts Powershell (via cmd or directly) 22->66 68 Encrypted powershell cmdline option found 22->68 70 2 other signatures 22->70 27 powershell.exe 32 22->27         started        process12 file13 46 C:\Users\user\AppData\Local\...\RegAAsm.exe, PE32 27->46 dropped 30 RegAAsm.exe 3 27->30         started        33 conhost.exe 27->33         started        process14 signatures15 78 Antivirus detection for dropped file 30->78 80 Windows shortcut file (LNK) starts blacklisted processes 30->80 82 Multi AV Scanner detection for dropped file 30->82 84 3 other signatures 30->84 35 powershell.exe 22 30->35         started        38 powershell.exe 23 30->38         started        process16 signatures17 62 Loading BitLocker PowerShell Module 35->62 40 conhost.exe 35->40         started        42 conhost.exe 38->42         started        process18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3488fe12c3493039d9eddabf5fb04bf9bb3a54bcd591ab911857b602c85f2e66/
Threat name:
Shortcut.Trojan.WinLnk
Create hunting rule
Status:
Malicious
First seen:
2024-05-16 07:44:52 UTC
File Type:
Binary
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gsep4ewdjeydtwpn3k7v7mcl7g5tuvf42wi2xeiyk63afsc7fzta._file
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm execution rat trojan
Link:
https://tria.ge/reports/240516-lvgqmsfc76/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in System32 directory
Checks computer location settings
Executes dropped EXE
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
Detect Xworm Payload
Xworm
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3488fe12c349/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
XWorm
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3488fe12c3493039d9eddabf5fb04bf9bb3a54bcd591ab911857b602c85f2e66

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:Download_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies download artefacts in shortcut (LNK) files.
Rule name:Execution_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies execution artefacts in shortcut (LNK) files.
Rule name:EXE_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies executable artefacts in shortcut (LNK) files.
Rule name:Long_RelativePath_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies shortcut (LNK) file with a long relative path. Might be used in an attempt to hide the path.
Rule name:PS_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies PowerShell artefacts in shortcut (LNK) files.
Rule name:Script_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies scripting artefacts in shortcut (LNK) files.
Rule name:SUSP_LNK_CMD
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects the reference to cmd.exe inside an lnk file, which is suspicious

File information

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

AsyncRAT

Shortcut (lnk) lnk 3488fe12c3493039d9eddabf5fb04bf9bb3a54bcd591ab911857b602c85f2e66

(this sample)

AsyncRAT

Executable exe 4953d68d68bf137417321bbfc3b7207ee6b2eab0c9600be88bdd3501961ea137

AsyncRAT

Visual Basic Script (vbs) vbs 4b056176eff38ea62624a06c424eb2ff021a616c884295d4b79366c1dc2aa066

  
X
https://twitter.com/banthisguy9349/status/1790996280535122055
  
Dropping
SHA256 4b056176eff38ea62624a06c424eb2ff021a616c884295d4b79366c1dc2aa066
  
Dropping
SHA256 4953d68d68bf137417321bbfc3b7207ee6b2eab0c9600be88bdd3501961ea137
  
Delivery method
Other
  
URLhaus
https://urlhaus.abuse.ch/url/2851636/
  
Dropping
MD5 634eb9320cb4f68904ae3b1a7f79e618
  
Dropping
MD5 7f23b18896c52fa40ad0d9b388e6e951

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