MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3e217c467cfe1e8079e82b88f2f99950a9459330a8843070ebb34bf3e2bcf38. 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: 18


Intelligence 18 IOCs YARA 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3e217c467cfe1e8079e82b88f2f99950a9459330a8843070ebb34bf3e2bcf38
SHA3-384 hash: 429410f498b5c3f6449d5e8de6bd2a1f829501ee51f7acb5564f881005915c389660a3a513c072b3dd1287faeecca95d
SHA1 hash: e8090adddff167e1bda4194af968ba4bc22a2d60
MD5 hash: 8d52069bd117da94e0b0b70e73e33fb0
humanhash: cat-avocado-delta-tennis
File name:file
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:74'240 bytes
First seen:2024-11-21 21:19:34 UTC
Last seen:2024-11-22 04:01:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:8C7dCCRXek2ycziKLGIp78eax9xbMxioyAgDd+E6V186Oc8E2el:p7MKOHXBGVpxbIEAgRA1dOcYel
TLSH T122737C1877E24529D5FF7FF509F13262DA79F2231903DA5F24D6058A2623ACACC80AF5
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter Bitsight
Tags:AsyncRAT exe


Avatar
Bitsight
url: http://31.41.244.11/files/document.exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
441
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-11-21 21:19:58 UTC
Tags:
telegram xworm crypto-regex remote ims-api generic
Link:
https://app.any.run/tasks/c7993687-f6dc-42d4-9dc9-6e6b08d9030c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.njRAT-10002074-1
Create hunting rule

Win.Packed.Msilzilla-10019837-0
Create hunting rule

Win.Packed.Loveletter-10023052-0
Create hunting rule

Win.Dropper.Nanocore-10024427-0
Create hunting rule

Win.Packed.Loveletter-10024677-0
Create hunting rule

Win.Packed.Msilzilla-10026193-0
Create hunting rule

Win.Malware.Deepscan-10028866-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.AsyncRAT.UNOFFICIAL
Create hunting rule

ditekSHen.MALWARE.Win.XWorm.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=673fa48db31374f098333e62
Tags:
asyncrat autorun gumen
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat backdoor hook keylogger obfuscated rat vbnet
Link:
https://www.filescan.io/uploads/673fa40349d3dd1c74734336/reports/65b2e5aa-38df-4cdf-8211-102d2697f9f3/overview
Verdict:
Malicious
Labled as:
Dump:Generic.Malware.SFL
Link:
https://www.hybrid-analysis.com/sample/b3e217c467cfe1e8079e82b88f2f99950a9459330a8843070ebb34bf3e2bcf38
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b66c4d47-8d16-453c-9bc0-32d54af92c15
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1560514
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
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Drops PE files with benign system names
Found malware configuration
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
Protects its processes via BreakOnTermination flag
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: System File Execution Location Anomaly
Suricata IDS alerts for network traffic
Uses the Telegram API (likely for C&C communication)
Yara detected Generic Downloader
Yara detected Telegram RAT
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1560514 Sample: file.exe Startdate: 21/11/2024 Architecture: WINDOWS Score: 100 36 api.telegram.org 2->36 44 Suricata IDS alerts for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 52 14 other signatures 2->52 8 file.exe 15 6 2->8         started        13 svchost.exe 2->13         started        15 svchost.exe 2->15         started        signatures3 50 Uses the Telegram API (likely for C&C communication) 36->50 process4 dnsIp5 38 87.120.112.33, 49755, 8398 UNACS-AS-BG8000BurgasBG Bulgaria 8->38 40 api.telegram.org 149.154.167.220, 443, 49749 TELEGRAMRU United Kingdom 8->40 34 C:\Users\user\AppData\Local\svchost.exe, PE32 8->34 dropped 54 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->54 56 Protects its processes via BreakOnTermination flag 8->56 58 Bypasses PowerShell execution policy 8->58 66 2 other signatures 8->66 17 powershell.exe 23 8->17         started        20 powershell.exe 23 8->20         started        22 powershell.exe 21 8->22         started        24 powershell.exe 8->24         started        60 Antivirus detection for dropped file 13->60 62 Multi AV Scanner detection for dropped file 13->62 64 Machine Learning detection for dropped file 13->64 file6 signatures7 process8 signatures9 42 Loading BitLocker PowerShell Module 17->42 26 conhost.exe 17->26         started        28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b3e217c467cfe1e8079e82b88f2f99950a9459330a8843070ebb34bf3e2bcf38
Detection:
xworm
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b3e217c467cfe1e8079e82b88f2f99950a9459330a8843070ebb34bf3e2bcf38/
Threat name:
ByteCode-MSIL.Spyware.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-11-21 21:20:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
30 of 38 (78.95%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wprbprdhz7q6qb46qk4i6l4zsufjiwjtbkeegbyoxm2l6prlz44a._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
Similar samples:
error
AsyncRAT
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm execution persistence rat trojan
Link:
https://tria.ge/reports/241121-1ck3nssndl/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Checks computer location settings
Drops startup file
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Xworm
Xworm family
Malware Config
C2 Extraction:
87.120.112.33:8398
Verdict:
Malicious
Tags:
rat xworm Win.Packed.njRAT-10002074-1
YARA:
win_mal_XWorm MALWARE_Win_XWorm win_xworm_bytestring
Link:
https://app.threat.zone/submission/cb2ef2a5-4228-45d3-b698-6eff83e04d75
Unpacked files
SH256 hash:
b3e217c467cfe1e8079e82b88f2f99950a9459330a8843070ebb34bf3e2bcf38
MD5 hash:
8d52069bd117da94e0b0b70e73e33fb0
SHA1 hash:
e8090adddff167e1bda4194af968ba4bc22a2d60
Detections:
XWorm
Create hunting rule
win_xworm_w0
Create hunting rule
Link:
https://www.unpac.me/results/64c84443-bf31-4cfe-9abe-ea2bd96a6537/
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b3e217c467cf/report/overview.html
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/b3e217c467cfe1e8079e82b88f2f99950a9459330a8843070ebb34bf3e2bcf38

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:ByteCode_MSIL_Backdoor_AsyncRAT
Create hunting rule
Author:ReversingLabs
Description:Yara rule that detects AsyncRAT backdoor.
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:MALWARE_Win_AsyncRAT
Create hunting rule
Author:ditekSHen
Description:Detects AsyncRAT
Rule name:MALWARE_Win_XWorm
Create hunting rule
Author:ditekSHen
Description:Detects XWorm
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:telegram_bot_api
Create hunting rule
Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:win_xworm_bytestring
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytestring present in unobfuscated xworm
Rule name:win_xworm_w0
Create hunting rule
Author:jeFF0Falltrades
Description:Detects win.xworm.
Rule name:XWorm
Create hunting rule
Author:ditekSHen
Description:Detects XWorm
Rule name:xworm
Create hunting rule
Author:jeFF0Falltrades
Rule name:xworm_kingrat
Create hunting rule
Author:jeFF0Falltrades

File information

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

Web download

AsyncRAT

Executable exe b3e217c467cfe1e8079e82b88f2f99950a9459330a8843070ebb34bf3e2bcf38

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3279832/
  
URLhaus
https://urlhaus.abuse.ch/url/3276929/
  
URLhaus
https://urlhaus.abuse.ch/url/3279841/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments