MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f3efdcd3b7961fb3974605017cec30b73f210f27dd96c5a3e6eb8cb3422f990. 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 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3f3efdcd3b7961fb3974605017cec30b73f210f27dd96c5a3e6eb8cb3422f990
SHA3-384 hash: 81f248585aed1d7af7d8a475ff486d9164c32ddc3180923b16126ea051483e8655c9a8fb4deb57a89f12ebaeb9a30aff
SHA1 hash: 3f9dbac838bb4d03a7fbd5eb3bc0f80a7cdb98d0
MD5 hash: 34b93b2c17fda25deeea946dbd2d6f4f
humanhash: utah-juliet-washington-helium
File name:1743362767b39ce9ae90af463b2090fcece5c4349a42c3942cf272d75d62dd81aabd676faf123.dat-decoded
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:36'864 bytes
First seen:2025-03-30 19:26:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 768:WqQq3QWIdhgbvvGASaKyobFf9kqOMh53XP5:WPq3QnbOvegKyAFf9kqOMvP5
Threatray 1 similar samples on MalwareBazaar
TLSH T124F24C087B944226D5FD6FF169B371020674E613D913DB9D48E899EF2F27BC08D013AA
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 abuse_ch
Tags:AsyncRAT base64-decoded exe


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
1
# of downloads :
426
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1743362767b39ce9ae90af463b2090fcece5c4349a42c3942cf272d75d62dd81aabd676faf123.dat-decoded
Verdict:
Malicious activity
Analysis date:
2025-03-30 19:28:46 UTC
Tags:
xworm remote
Link:
https://app.any.run/tasks/e511004b-83f9-47f7-92ce-3db1dc5d6c40

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e99d47cfd0a37f830a5d3e
Tags:
asyncrat keylog remo word
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Connection attempt to an infection source
Using the Windows Management Instrumentation requests
Setting a global event handler for the keyboard
Query of malicious DNS domain
Sending a TCP request to an infection source
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/3f3efdcd3b7961fb3974605017cec30b73f210f27dd96c5a3e6eb8cb3422f990
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/02de9487-63f0-47e0-9268-347a561f6850
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1652321
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
Joe Sandbox ML detected suspicious 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
Suricata IDS alerts 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/3f3efdcd3b7961fb3974605017cec30b73f210f27dd96c5a3e6eb8cb3422f990
Detection:
xworm
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3f3efdcd3b7961fb3974605017cec30b73f210f27dd96c5a3e6eb8cb3422f990/
Threat name:
ByteCode-MSIL.Spyware.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2025-03-29 01:55:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
31 of 36 (86.11%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h47p3tj3pfq7wolumbibptwdbnz7eehspxmwywr6n24mwnbc7gia._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/250330-x5lm5axn12/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Detect Xworm Payload
Xworm
Xworm family
Malware Config
C2 Extraction:
jeggawire.ddns.net:1111
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/09f8d296-86af-4d91-8671-c23a0a1a5ede
Unpacked files
SH256 hash:
3f3efdcd3b7961fb3974605017cec30b73f210f27dd96c5a3e6eb8cb3422f990
MD5 hash:
34b93b2c17fda25deeea946dbd2d6f4f
SHA1 hash:
3f9dbac838bb4d03a7fbd5eb3bc0f80a7cdb98d0
Detections:
win_xworm_w0
Create hunting rule
Link:
https://www.unpac.me/results/459308a8-ae73-4fb8-8bf4-9df6ca6cd951/
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3f3efdcd3b79/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/3f3efdcd3b7961fb3974605017cec30b73f210f27dd96c5a3e6eb8cb3422f990

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_Trojan_XWorm_b7d6eaa8
Create hunting rule
Author:Elastic Security
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: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.

b39ce9ae90af463b2090fcece5c4349a42c3942cf272d75d62dd81aabd676faf

AsyncRAT

Executable exe 3f3efdcd3b7961fb3974605017cec30b73f210f27dd96c5a3e6eb8cb3422f990

(this sample)

  
Dropped by
SHA256 b39ce9ae90af463b2090fcece5c4349a42c3942cf272d75d62dd81aabd676faf
  
Dropped by
MD5 2aa8433ff8884641a4ae85b3a06b37fc
  
URLhaus
https://urlhaus.abuse.ch/url/3496109/
  
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

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