MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4fdaa4266620e0871b078e2ec55e3eb40039e790dd3ea4553e8f631b593ac28c. 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: 15


Intelligence 15 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4fdaa4266620e0871b078e2ec55e3eb40039e790dd3ea4553e8f631b593ac28c
SHA3-384 hash: 775871aa4f10eaddc2def8be4bd8bb9355533a15037beaeb0892476c5bb7f3af67a79233cbe3a7dc8f1ad4ecab64348c
SHA1 hash: fdc75a4438fbd6e50c8cc3103e605c589d7ae508
MD5 hash: d4573b23754ae41faa1d21c157b795cd
humanhash: early-pasta-helium-two
File name:1708413369f0b39718fd0de53c8942dfc3af1859bd53e739ceec277d904dc4d683f52e7fd5787.dat-decoded
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:37'376 bytes
First seen:2024-02-20 07:16:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:YGLtt3QI2/yQJVZU1eo8icH1bxbFb9E1zOMhJQXvQ:YAb3QI2/yQBIeNicH1bBFb9E9OMz6Q
TLSH T106F24C48BB944216D9ED2FF4A97371020674D713D917EB4E48E48ADB6F27BC48D013EA
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:AsyncRAT base64-decoded exe


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
1
# of downloads :
391
Origin country :
DE DE
Vendor Threat Intelligence
Detection:
XWorm
Create hunting rule
Link:
https://www.capesandbox.com/analysis/476960/
Detection(s):
Win.Packed.njRAT-10002074-1
Create hunting rule

Win.Packed.Msilzilla-10019837-0
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ditekSHen.MALWARE.Win.Trojan.AsyncRAT.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
DNS request
Connection attempt
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Setting a global event handler for the keyboard
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm hook keylogger njrat
Link:
https://www.filescan.io/uploads/65d451ef03a1c3a7aef1edb2/reports/8c2740eb-32c0-41bd-89ff-993462c20247/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/4fdaa4266620e0871b078e2ec55e3eb40039e790dd3ea4553e8f631b593ac28c
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cc1f3302-f677-415f-a510-92a1e63427ae
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1395058
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Snort IDS alert for network traffic
Uses dynamic DNS services
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4fdaa4266620e0871b078e2ec55e3eb40039e790dd3ea4553e8f631b593ac28c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4fdaa4266620e0871b078e2ec55e3eb40039e790dd3ea4553e8f631b593ac28c/
Threat name:
ByteCode-MSIL.Trojan.XWorm
Create hunting rule
Status:
Malicious
First seen:
2024-02-20 07:17:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j7nkijtgedqiogyhryxmkxr6wqadtz4q3u7kivj6r5rrwwj2ykga._file
Verdict:
malicious
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm rat trojan
Link:
https://tria.ge/reports/240220-h4clhadh48/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
freed2678.duckdns.org:7000
Unpacked files
SH256 hash:
4fdaa4266620e0871b078e2ec55e3eb40039e790dd3ea4553e8f631b593ac28c
MD5 hash:
d4573b23754ae41faa1d21c157b795cd
SHA1 hash:
fdc75a4438fbd6e50c8cc3103e605c589d7ae508
Detections:
MALWARE_Win_XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/84c3219c-25aa-4f3f-a1d3-c8f4afb80778/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4fdaa4266620/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/4fdaa4266620e0871b078e2ec55e3eb40039e790dd3ea4553e8f631b593ac28c

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:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
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:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
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:win_xworm_bytestring
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytestring present in unobfuscated xworm

File information

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

f0b39718fd0de53c8942dfc3af1859bd53e739ceec277d904dc4d683f52e7fd5

AsyncRAT

Executable exe 4fdaa4266620e0871b078e2ec55e3eb40039e790dd3ea4553e8f631b593ac28c

(this sample)

  
Dropped by
SHA256 f0b39718fd0de53c8942dfc3af1859bd53e739ceec277d904dc4d683f52e7fd5
  
Dropped by
MD5 b2ad9eba5cf024f5c6f8b9170e624aa8
  
URLhaus
https://urlhaus.abuse.ch/url/2765189/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/476960/

Comments