MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1c97fe85170fd6acd766d965f1931e32692ffa92db222492fd24b4421b126c9. 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: 16


Intelligence 16 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1c97fe85170fd6acd766d965f1931e32692ffa92db222492fd24b4421b126c9
SHA3-384 hash: 1f387982be2c425c8ecdfa8bb9f8f7e6eff2d36cf25395c75f2fe03f734c8f0399556d2ea479e6369e4f64da04987739
SHA1 hash: 269be255f238e7be7e4976204b6605ee069e55d9
MD5 hash: 85d9338ae7f8665821638125a394cb4f
humanhash: floor-steak-black-mississippi
File name:file
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:33'280 bytes
First seen:2024-11-08 18:09:46 UTC
Last seen:2024-11-08 18:14:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:kUa+vNVBBdfwoso9qimZ+VFY9jRDOjhnb1:bvNVGorfmiFY9jRDOjtx
TLSH T15FE23A447B944622DAFF6FF128B392010674D517D823EF6E0CE495EA2B67BC087407E6
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://husktools.duckdns.org/worm.exe

Intelligence

File Origin
# of uploads :
30
# of downloads :
424
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-11-08 18:11:27 UTC
Tags:
remote xworm
Link:
https://app.any.run/tasks/3dfff3dc-bf5a-46ca-a6f7-a7b7bf629890

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.Packed.Loveletter-10024677-0
Create hunting rule

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

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

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

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=672e5436a5bee3c9d42be7a6
Tags:
asyncrat xworm micro remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Connection attempt
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/a1c97fe85170fd6acd766d965f1931e32692ffa92db222492fd24b4421b126c9
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/973ec2f0-57ae-4718-855d-a6da07e9b9bc
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1552431
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
Found potential dummy code loops (likely to delay analysis)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a1c97fe85170fd6acd766d965f1931e32692ffa92db222492fd24b4421b126c9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a1c97fe85170fd6acd766d965f1931e32692ffa92db222492fd24b4421b126c9/
Threat name:
ByteCode-MSIL.Spyware.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-11-08 18:10:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uhex72crod6wvtlwnwlf6gjr4mtjf75jfwzcesjp2jfuiinre3eq._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 rat trojan
Link:
https://tria.ge/reports/241108-wr1z8awlet/
Behaviour
Suspicious use of AdjustPrivilegeToken
Detect Xworm Payload
Xworm
Xworm family
Malware Config
C2 Extraction:
87.120.117.209:7000
Verdict:
Malicious
Tags:
rat xworm Win.Packed.njRAT-10002074-1
YARA:
win_mal_XWorm MALWARE_Win_XWorm
Link:
https://app.threat.zone/submission/e76a57a9-15ae-47ee-83e5-ba5f7e6e1347
Unpacked files
SH256 hash:
a1c97fe85170fd6acd766d965f1931e32692ffa92db222492fd24b4421b126c9
MD5 hash:
85d9338ae7f8665821638125a394cb4f
SHA1 hash:
269be255f238e7be7e4976204b6605ee069e55d9
Detections:
XWorm
Create hunting rule
win_xworm_w0
Create hunting rule
Link:
https://www.unpac.me/results/b791236b-ea0e-478b-a0a0-9c97ab12e7f8/
Parent samples :
a1c97fe85170fd6acd766d965f1931e32692ffa92db222492fd24b4421b126c9
7245244c75276269f56cce5f81194681a881d4746a7abec6807f28a19b04ba66
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a1c97fe85170/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/a1c97fe85170fd6acd766d965f1931e32692ffa92db222492fd24b4421b126c9

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: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:Windows_Generic_Threat_dbae6542
Create hunting rule
Author:Elastic Security
Rule name:win_xworm_w0
Create hunting rule
Author:jeFF0Falltrades
Description:Detects win.xworm.
Rule name:xworm
Create hunting rule
Author:jeFF0Falltrades
Rule name:XWorm
Create hunting rule
Author:ditekSHen
Description:Detects XWorm
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 a1c97fe85170fd6acd766d965f1931e32692ffa92db222492fd24b4421b126c9

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3282621/

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

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