MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 440c3df99e39d7adbbd231ab92b01c2e70e276703e8b5831822bba1facc7e1b9. 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: 13


Intelligence 13 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 440c3df99e39d7adbbd231ab92b01c2e70e276703e8b5831822bba1facc7e1b9
SHA3-384 hash: bbba3d618f0ad176cf6e4deedf0e54ff6184f86e2d6e7d12d3b68f571c84b426fd961a188abc30210cf7558b4208da02
SHA1 hash: aec47d530910271c13724303a30aea8a3efd0bbd
MD5 hash: 2c45788c08d96965bc39341b76753e2c
humanhash: fruit-twenty-fix-enemy
File name:j.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:502'176 bytes
First seen:2025-04-06 05:43:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:pgtRLlWNy6QhId2Ae4KRrPbylpPP+UNtcw41lhkXV6VxTUm7J1:pSLla7pXKwp3+UNt6nQCxTUu
TLSH T104B49E60F75A9EC6D44E8E31DAFEB6B8F629786859449313B38C72124DA120CDCCC7D6
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
dhash icon 5050d270cccc82ae (109 x Adware.Generic, 43 x LummaStealer, 42 x OffLoader)
Reporter abuse_ch
Tags:AsyncRAT exe signed

Code Signing Certificate

Organisation:Valve
Issuer:Steam
Algorithm:sha256WithRSAEncryption
Valid from:2024-06-24T19:00:33Z
Valid to:2035-04-03T19:00:33Z
Serial number: ef9bd6e2963bed24ad0fca41c01c1f50a53eb967
Thumbprint Algorithm:SHA256
Thumbprint: 47f38582dd59b81a93576f2ed5402a3a8dba700b945ade5043cbc6351cb47bff
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
317
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/866/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67f215bfe011fe619fab7895
Tags:
virus micro sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Sending an HTTP GET request to an infection source
Creating a file in the %temp% subdirectories
Launching a process
Creating a process with a hidden window
Creating a file
Using the Windows Management Instrumentation requests
Connection attempt to an infection source
Sending a TCP request to an infection source
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated obfuscated self-signed-cert signed
Link:
https://www.filescan.io/uploads/67f218112d430c849e089b1c/reports/f362915f-225c-4846-a5aa-e48e5c014029/overview
Verdict:
Malicious
Labled as:
Trojan.Mardom.MN.Generic
Link:
https://www.hybrid-analysis.com/sample/440c3df99e39d7adbbd231ab92b01c2e70e276703e8b5831822bba1facc7e1b9
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/68951ee0-acef-4e4d-b52f-15f8d1ce08c4
Result
Threat name:
AsyncRAT, DcRat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1657595
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
.NET source code references suspicious native API functions
AI detected suspicious PE digital signature
Allocates memory in foreign processes
Antivirus detection for dropped file
Compiles code for process injection (via .Net compiler)
Contains functionality to capture screen (.Net source)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Dot net compiler compiles file from suspicious location
Suricata IDS alerts for network traffic
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected DcRat
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/440c3df99e39d7adbbd231ab92b01c2e70e276703e8b5831822bba1facc7e1b9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/440c3df99e39d7adbbd231ab92b01c2e70e276703e8b5831822bba1facc7e1b9/
Threat name:
ByteCode-MSIL.Spyware.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2025-04-05 22:41:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
22 of 24 (91.67%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iqgd36m6hhl23o6sggvzfma4fzyoe5tqh2fvqmmcfo5b7lgh4g4q._file
Verdict:
malicious
Label(s):
boratrat
Create hunting rule
asyncrat
Create hunting rule
Similar samples:
error
AsyncRAT
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default discovery rat
Link:
https://tria.ge/reports/250406-gnkfqsvqw3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Downloads MZ/PE file
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
92.255.85.2:1414
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5fd3d557-3971-42cc-b2d1-553344b26c26
Unpacked files
SH256 hash:
440c3df99e39d7adbbd231ab92b01c2e70e276703e8b5831822bba1facc7e1b9
MD5 hash:
2c45788c08d96965bc39341b76753e2c
SHA1 hash:
aec47d530910271c13724303a30aea8a3efd0bbd
Link:
https://www.unpac.me/results/a500cb24-fe21-4649-bca2-b2bec0a31679/
SH256 hash:
00a822e5e7fdb373fa9514d32b3e981681117168a786791898cb0ea4d4270677
MD5 hash:
0199bf4b6d76f1b5b6f3d028bd42fb0a
SHA1 hash:
190a9969d8401eb521ac5b78c601ed25fdac38dd
Link:
https://www.unpac.me/results/a500cb24-fe21-4649-bca2-b2bec0a31679/
SH256 hash:
8f10be2271c17dbc8869a2f594c9faa99e650761522ea8bef27ce335c84bd17e
MD5 hash:
da7c4e5ad74a70069b28c15e2dbb7b1d
SHA1 hash:
ef625b87006a3763d74c318a830bd1e4cf475984
Link:
https://www.unpac.me/results/a500cb24-fe21-4649-bca2-b2bec0a31679/
Malware family:
DCRat
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/440c3df99e39/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/440c3df99e39d7adbbd231ab92b01c2e70e276703e8b5831822bba1facc7e1b9

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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)

File information

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

Web download

AsyncRAT

Executable exe 440c3df99e39d7adbbd231ab92b01c2e70e276703e8b5831822bba1facc7e1b9

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3499846/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/866/

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments