MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37f4decd5be11194eff9bab5896494dac9c83821070a7aa8d2660067ed48197e. 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: 17


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

SHA256 hash: 37f4decd5be11194eff9bab5896494dac9c83821070a7aa8d2660067ed48197e
SHA3-384 hash: f00507d484115dae9a86e705e022e811e917e599bd5f26e98381c191c7ea71568d9af1af4b8bfa0efbf49b9defe0a082
SHA1 hash: 1622416290dcd2e45251cd2f84d12641f0c80980
MD5 hash: ff3f0e9a9202fac2b13da6cc4a690526
humanhash: violet-robert-sink-bakerloo
File name:MEMESENSE.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:75'264 bytes
First seen:2025-03-16 17:44:35 UTC
Last seen:2025-03-19 12:03:58 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:Y2sFofXnZhu9coVN4KHwxfHbQo1WtHi/6YJIA5DO5qjwEly6:Y2Jxs9cFKQxfHbQvE5ICO0jwuy6
TLSH T10E737D183BEA4125F2FFAFB11DF13552DA7AB3235913D65F14C8025B0623A8ACE507B6
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 aachum
Tags:AsyncRAT exe xworm


Avatar
iamaachum
https://www.youtube.com/watch?v=9SPfeY9J-V4 => https://workupload.com/start/uc8wwDcCHbU

XWorm C2: century-descriptions.gl.at.ply.gg:56555

Intelligence

File Origin
# of uploads :
2
# of downloads :
406
Origin country :
ES ES
Vendor Threat Intelligence
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d70f0508116ce4257186d6
Tags:
asyncrat autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Creating a process with a hidden window
Creating a file
Launching a process
Creating a window
Connection attempt to an infection source
Sending a TCP request to an infection source
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
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 fingerprint lolbin obfuscated obfuscated packed packer_detected rat reconnaissance schtasks vbnet xworm
Link:
https://www.filescan.io/uploads/67d70e310a7899f35798652d/reports/0b7c9327-5b57-4855-b8a2-472aa5d39733/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/37f4decd5be11194eff9bab5896494dac9c83821070a7aa8d2660067ed48197e
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/628feef0-e724-4993-b8a5-c26b8ca25804
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1639941
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 / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Drops PE files to the user root directory
Drops PE files with benign system names
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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: Schedule system process
Sigma detected: Suspect Svchost Activity
Sigma detected: System File Execution Location Anomaly
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1639941 Sample: MEMESENSE.exe Startdate: 16/03/2025 Architecture: WINDOWS Score: 100 44 century-descriptions.gl.at.ply.gg 2->44 46 ip-api.com 2->46 48 198.187.3.20.in-addr.arpa 2->48 54 Suricata IDS alerts for network traffic 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 16 other signatures 2->60 8 MEMESENSE.exe 15 5 2->8         started        13 svchost.exe 2->13         started        15 svchost.exe 2->15         started        17 6 other processes 2->17 signatures3 process4 dnsIp5 50 century-descriptions.gl.at.ply.gg 147.185.221.25, 54753, 56555 SALSGIVERUS United States 8->50 52 ip-api.com 208.95.112.1, 49722, 80 TUT-ASUS United States 8->52 42 C:\Users\user\svchost.exe, PE32 8->42 dropped 64 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->64 66 Protects its processes via BreakOnTermination flag 8->66 68 Bypasses PowerShell execution policy 8->68 76 6 other signatures 8->76 19 powershell.exe 23 8->19         started        22 powershell.exe 23 8->22         started        24 powershell.exe 23 8->24         started        28 2 other processes 8->28 70 Antivirus detection for dropped file 13->70 72 Multi AV Scanner detection for dropped file 13->72 74 Changes security center settings (notifications, updates, antivirus, firewall) 15->74 26 MpCmdRun.exe 15->26         started        file6 signatures7 process8 signatures9 62 Loading BitLocker PowerShell Module 19->62 30 conhost.exe 19->30         started        32 conhost.exe 22->32         started        34 conhost.exe 24->34         started        36 conhost.exe 26->36         started        38 conhost.exe 28->38         started        40 conhost.exe 28->40         started        process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/37f4decd5be11194eff9bab5896494dac9c83821070a7aa8d2660067ed48197e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/37f4decd5be11194eff9bab5896494dac9c83821070a7aa8d2660067ed48197e/
Threat name:
Win32.Trojan.Xworm
Create hunting rule
Status:
Malicious
First seen:
2025-03-16 14:58:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
30 of 36 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g72n5tk34eizj37zxk2yszeu3le4qobba4fhvkgsmyagp3kidf7a._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/250316-wbrfvawvex/
Behaviour
Suspicious use of AdjustPrivilegeToken
Looks up external IP address via web service
Detect Xworm Payload
Xworm
Xworm family
Malware Config
C2 Extraction:
century-descriptions.gl.at.ply.gg:56555
Verdict:
Malicious
Tags:
rat xworm Win.Packed.njRAT-10002074-1 external_ip_lookup
YARA:
win_mal_XWorm EXE_RAT_XWorm_April2024 MALWARE_Win_XWorm
Link:
https://app.threat.zone/submission/b295670f-bb53-4476-b08b-75ce2a2002db
Unpacked files
SH256 hash:
37f4decd5be11194eff9bab5896494dac9c83821070a7aa8d2660067ed48197e
MD5 hash:
ff3f0e9a9202fac2b13da6cc4a690526
SHA1 hash:
1622416290dcd2e45251cd2f84d12641f0c80980
Detections:
win_xworm_w0
Create hunting rule
win_mal_XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
MALWARE_Win_XWorm
Create hunting rule
Link:
https://www.unpac.me/results/f152fbc3-44f5-43fb-a65c-6abdf89e21ec/
Parent samples :
b99cd41e40fa63ebe8efc4f1263d9fe3c0151a05ac580ee5421ca365f163e5ea
37f4decd5be11194eff9bab5896494dac9c83821070a7aa8d2660067ed48197e
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/37f4decd5be1/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/37f4decd5be11194eff9bab5896494dac9c83821070a7aa8d2660067ed48197e

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:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:EXE_RAT_XWorm_April2024
Create hunting rule
Author:Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell
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: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_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 37f4decd5be11194eff9bab5896494dac9c83821070a7aa8d2660067ed48197e

(this sample)

  
Link
https://tria.ge/250316-v739vazjw3/
  
Delivery method
Distributed via web download

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