MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e1597543c0d63cf44db982f9c5cdb0ebdb88343ab8e8711501103d5f2ebb06b. 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: 14


Intelligence 14 IOCs YARA 23 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4e1597543c0d63cf44db982f9c5cdb0ebdb88343ab8e8711501103d5f2ebb06b
SHA3-384 hash: 970834139ecca4449ae2aa1a800c938113843a873ca2cdec11144462f199a267f1487a2c2258712aa4834dcd26f815bb
SHA1 hash: 0e9bb93482beff08eb211ff551de66bf0b8aa0d4
MD5 hash: dc9544bf3a585c21a620bb1d85a4dfdc
humanhash: angel-eleven-lamp-golf
File name:17324340651fd0721b4a9b07278d0f63e6333ccd4883a9dc52eb27994b32b0d64dfb919b72906.dat-decoded
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:78'336 bytes
First seen:2024-11-24 07:41:06 UTC
Last seen:2024-11-26 08:17:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:vw8ObcTxPG1oj5hHCMI0boPaVr572GBWkDbVxPn9V/EItMiTBijcnAGEaDDx1plf:vrsOjWaSaVr5l3TijKAGXDx8UMZJi
TLSH T14A735B187BABC526D1BDAA7984E113050775E7137203DB4F2CC8039A4F13BCB9F56A9A
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 deadpoolstart2025-duckdns-org exe


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
2
# of downloads :
516
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
17324340651fd0721b4a9b07278d0f63e6333ccd4883a9dc52eb27994b32b0d64dfb919b72906.dat-decoded
Verdict:
Malicious activity
Analysis date:
2024-11-24 07:55:02 UTC
Tags:
asyncrat netreactor
Link:
https://app.any.run/tasks/483a5ddd-630b-49d0-88b3-cee71dab06b3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.BackDoor.AsyncRATNET.1.10487.9328.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6742d8cbb31374f09833e873
Tags:
asyncrat virus gates remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat net_reactor obfuscated overlay packed packed smartassembly smart_assembly vbnet
Link:
https://www.filescan.io/uploads/6742d8ca97ce90b131447dd7/reports/0acb1991-652c-4836-9b16-b82e4e7f24b9/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/4e1597543c0d63cf44db982f9c5cdb0ebdb88343ab8e8711501103d5f2ebb06b
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/490546eb-a0f8-45ee-8217-bcea3b7a5fd1
Result
Threat name:
AsyncRAT, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1561768
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
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected AsyncRAT
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4e1597543c0d63cf44db982f9c5cdb0ebdb88343ab8e8711501103d5f2ebb06b/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-11-21 02:41:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
32 of 38 (84.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jykzovb4bvr46rg3taxzyxg3b263ra2dvohioekqceb5l4xlwbvq._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/241124-jjncyazrcx/
Verdict:
Malicious
Tags:
rat asyncrat
YARA:
malware_asyncrat asyncrat AsyncRat_Payload JPCERTCC_Asyncrat Windows_Generic_Threat_ce98c4bc
Link:
https://app.threat.zone/submission/c69ee2cc-318b-4569-bb16-20b657b39e61
Unpacked files
SH256 hash:
ca1ae12ebc8f7e455c88b32a15584b2f0288b70ab55bce92fedc12097175ac7b
MD5 hash:
8fedc40edd6c61f05b12915fb67cf62c
SHA1 hash:
10527a4dac1f9af707f4170191bc682c6d6ad3c9
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/8f82fa5a-c0f8-435c-8725-07da8558ccf9/
Parent samples :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 hash:
4e1597543c0d63cf44db982f9c5cdb0ebdb88343ab8e8711501103d5f2ebb06b
MD5 hash:
dc9544bf3a585c21a620bb1d85a4dfdc
SHA1 hash:
0e9bb93482beff08eb211ff551de66bf0b8aa0d4
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/8f82fa5a-c0f8-435c-8725-07da8558ccf9/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4e1597543c0d63cf44db982f9c5cdb0ebdb88343ab8e8711501103d5f2ebb06b

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:AgentTesla
Create hunting rule
Author:Harish Kumar P
Description:Yara Rule to Detect AgentTesla
Rule name:AsyncRat
Create hunting rule
Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DotNet_Reactor
Create hunting rule
Author:@bartblaze
Description:Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:malware_asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:malware_asyncrat
Create hunting rule
Description:detect AsyncRat in memory
Reference:https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:PureCrypter
Create hunting rule
Author:@bartblaze
Description:Identifies PureCrypter, .NET loader and obfuscator.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
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: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)
Rule name:Windows_Generic_Threat_ce98c4bc
Create hunting rule
Author:Elastic Security
Rule name:win_asyncrat_w0
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research

File information

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

1fd0721b4a9b07278d0f63e6333ccd4883a9dc52eb27994b32b0d64dfb919b72

AsyncRAT

Executable exe 4e1597543c0d63cf44db982f9c5cdb0ebdb88343ab8e8711501103d5f2ebb06b

(this sample)

  
Dropped by
SHA256 1fd0721b4a9b07278d0f63e6333ccd4883a9dc52eb27994b32b0d64dfb919b72
  
Dropped by
MD5 bc831f20b437f55597582486956af9ab
  
URLhaus
https://urlhaus.abuse.ch/url/3301896/
  
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