MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 32bdc05f94a1cd79e80677c623332a0eb1fe83163a62f235c8a50d44034fea41. 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 19 File information Comments
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SHA256 hash: 32bdc05f94a1cd79e80677c623332a0eb1fe83163a62f235c8a50d44034fea41
SHA3-384 hash: 2e7d121d9c4b56c66ce7ac582844374ef1c39c61cdd942bc68bb39593424bfc04c47b4e379e881216a5a6268802c324c
SHA1 hash: c825837e6c47ee1546fe6fe7f34dd1edfd297e81
MD5 hash: 973a13960b31c84ea538e0560992dd41
humanhash: monkey-johnny-finch-seventeen
File name:Stub.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:67'584 bytes
First seen:2023-10-06 15:16:30 UTC
Last seen:Never
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:OmfWSqHdykrVMKuJUYFG8/I7wS8qejbJgySL8Gs1vrmTG9x:OmeSqHdykGKuJUYFu7wS8qEbJZ1vEWx
Threatray 3'168 similar samples on MalwareBazaar
TLSH T12363F7053BE98129F3BE8F7469F2668546F5F56F2D12C95D1C8801CE0632B829942FBF
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
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) (4505/5/1)
Reporter r3dbU7z
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
326
Origin country :
RU RU
Vendor Threat Intelligence
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Win.Packed.Razy-9625918-0
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Win.Packed.AsyncRAT-9861056-1
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Creating a window
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Setting a global event handler for the keyboard
Gathering data
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/32bdc05f94a1cd79e80677c623332a0eb1fe83163a62f235c8a50d44034fea41
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:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/54772709-512c-41cf-b48d-ef3f2ee7ef9d
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1321092
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to capture screen (.Net source)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1321092 Sample: Stub.exe Startdate: 06/10/2023 Architecture: WINDOWS Score: 100 17 osostata.com 2->17 21 Snort IDS alert for network traffic 2->21 23 Found malware configuration 2->23 25 Malicious sample detected (through community Yara rule) 2->25 27 11 other signatures 2->27 8 Stub.exe 2 5 2->8         started        signatures3 process4 dnsIp5 19 osostata.com 185.241.208.114, 49707, 49714, 49716 GBTCLOUDUS Moldova Republic of 8->19 11 cmd.exe 1 8->11         started        process6 process7 13 conhost.exe 11->13         started        15 timeout.exe 1 11->15         started       
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/32bdc05f94a1cd79e80677c623332a0eb1fe83163a62f235c8a50d44034fea41/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2023-10-06 15:17:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gk64ax4uuhgxt2ago7dcgmzkb2y75aywhjrpenoiuuguia2p5jaq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
46e321489e9b76e1ccbf661d8d2972efb563de4817f67a9082da5283d2389ba8
AsyncRAT
6a30833b7ec13144c0ce90a7c6f805186b8a61f8a69e13ec684fe533682d65cf
AsyncRAT
7b9a9b11fc9794d4e31d647a3cab02fecdb048e81bc13d37d1c3533b8e96a8d3
AsyncRAT
88f4284bc8f0f23ab3b6c37b3c1ae3f04993af17c2b968900006960338898546
AsyncRAT
b5d8b5335b711198a472093fa0455af5b2176dbb47a36525fbf7e5fefbbb6ad4
AsyncRAT
c63ce128ee4c0442e303b86d27e3e7df8eff15a04a44ada8cabfa965144ccf56
AsyncRAT
e2d7d2f29210d3f1f8cac37c94464ff541187a37911210c26c0f7938739bdab8
AsyncRAT
e359c6277dcebf7b485dd5b3e54f25d60b4bbacf25f9818ac3f8604317136f4d
AsyncRAT
f3bb7c06974dec76f51522f0df50cb74a44f797949857e073b761541a2d3fe28
AsyncRAT
+ 3'158 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:os-shark rat spyware stealer
Link:
https://tria.ge/reports/231006-sn1y9sfg54/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Reads user/profile data of web browsers
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
osostata.com:5555
Unpacked files
SH256 hash:
32bdc05f94a1cd79e80677c623332a0eb1fe83163a62f235c8a50d44034fea41
MD5 hash:
973a13960b31c84ea538e0560992dd41
SHA1 hash:
c825837e6c47ee1546fe6fe7f34dd1edfd297e81
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/7b462fec-5ede-4b44-a9dc-b93660305fbd/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/32bdc05f94a1/report/overview.html
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/32bdc05f94a1cd79e80677c623332a0eb1fe83163a62f235c8a50d44034fea41

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:AsyncRat
Create hunting rule
Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
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:MAL_AsnycRAT
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:msil_suspicious_use_of_strreverse
Create hunting rule
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
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: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:SUSP_Reverse_Run_Key
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
Rule name:Windows_Trojan_Asyncrat_11a11ba1
Create hunting rule
Author:Elastic Security
Rule name:win_asyncrat_bytecodes
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytecodes present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)
Rule name:win_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
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.

Web download

AsyncRAT

Executable exe 32bdc05f94a1cd79e80677c623332a0eb1fe83163a62f235c8a50d44034fea41

(this sample)

  
Delivery method
Distributed via web download

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