MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f372cfc59d3e2235cc22911f71ca105b1d602fb419c9af2d9d03e7d91ee2eea6. 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 20 File information Comments

SHA256 hash:	f372cfc59d3e2235cc22911f71ca105b1d602fb419c9af2d9d03e7d91ee2eea6
SHA3-384 hash:	07d7bd907a5445d2589af6209619ce26825bac2f73cf0564b2315946d41dac2f91f629101953389617789f1e7bcae70b
SHA1 hash:	3a2e6b4c3c5892e148d4f87e9ae9902f1baaff0e
MD5 hash:	7a07ff3156b7b86a2f3493681aa3af23
humanhash:	enemy-mockingbird-purple-berlin
File name:	Stub.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	48'640 bytes
First seen:	2023-10-06 13:28:46 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	768:au/6ZTgoiziWUUM9rmo2qr0aHy4glr6yJlMPIaoxU7N0bQOOdya4oiaB0T0sws28:au/6ZTgle2iNyJfaIU7KbQfQaETvwsqS
Threatray	3'068 similar samples on MalwareBazaar
TLSH	T142232B003BE9812BF2BE4F78A9F222454676F2673A02D55D1CD441D75B23BC2DA426FE
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 :

# of downloads :

295

Origin country :

Vendor Threat Intelligence

Detection(s):

Porcupine.Malware.58887.UNOFFICIAL

Win.Packed.Razy-9625918-0

Win.Packed.AsyncRAT-9861056-1

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

DNS request

Sending a custom TCP request

Gathering data

Verdict:

Malicious

Labled as:

Backdoo.FB32B6C0

Link:

https://www.hybrid-analysis.com/sample/f372cfc59d3e2235cc22911f71ca105b1d602fb419c9af2d9d03e7d91ee2eea6

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

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/fbd81802-9173-4818-b02c-ddcb218d7ee2

Result

Threat name:

AsyncRAT

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1320934

Signature

Antivirus / Scanner detection for submitted sample

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

Detection:

asyncrat

Link:

https://mwdb.cert.pl/sample/f372cfc59d3e2235cc22911f71ca105b1d602fb419c9af2d9d03e7d91ee2eea6/

Threat name:

ByteCode-MSIL.Backdoor.AsyncRAT

Status:

Malicious

First seen:

2023-10-06 13:29:05 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

21 of 22 (95.45%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=6nzm7rm5hyrdltbcsepxdsqqlmowal5udhe26lm5apt5shxc52ta._file

Verdict:

malicious

Label(s):

asyncrat

AsyncRAT

20d829712638e1cf6dac27bdcc57f247a24a7de8fba941568dd41e869d84f75c

AsyncRAT

4a72f887ce916e9eaef552c54fdcdc51dd610b3b5c92528956341281bdcbed82

AsyncRAT

6a9d3d2a4eaa850159fcddf238be20521d711c2ee75bfa01145cca1e9bacfae5

AsyncRAT

8c8aee950d1420d409169010b6a9e475c2d0d78ecf9c6d31a3a7542c15735e4f

AsyncRAT

bcf7571a4d9b25fabdc2d6120b1b2d7bd8446ea2bc3a5da1d4127954920067de

AsyncRAT

e51cfc4ccf015ea240546459a25884b818594916e04d987c08fa5d2b2e12aa30

AsyncRAT

+ 3'058 additional samples on MalwareBazaar

Result

Malware family:

asyncrat

Score:

10/10

Tags:

family:asyncrat botnet:default rat

Link:

https://tria.ge/reports/231006-qq8qsaea75/

Behaviour

Suspicious use of AdjustPrivilegeToken

Async RAT payload

AsyncRat

Malware Config

C2 Extraction:

sen3tors.linkpc.net:7777

Unpacked files

SH256 hash:

f372cfc59d3e2235cc22911f71ca105b1d602fb419c9af2d9d03e7d91ee2eea6

MD5 hash:

7a07ff3156b7b86a2f3493681aa3af23

SHA1 hash:

3a2e6b4c3c5892e148d4f87e9ae9902f1baaff0e

Detections:

AsyncRAT

win_asyncrat_w0

Link:

https://www.unpac.me/results/9f5f275c-1b42-4bca-bf52-113919082ffa/

Malware family:

AsyncRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/f372cfc59d3e/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/f372cfc59d3e2235cc22911f71ca105b1d602fb419c9af2d9d03e7d91ee2eea6

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_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:	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:	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

exe f372cfc59d3e2235cc22911f71ca105b1d602fb419c9af2d9d03e7d91ee2eea6

(this sample)

Delivery method

Distributed via web download

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