MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 848fcb87c298f41af7286e75be0aeb88ddf92b38bf6d78e71228f8017b20bf78. 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: 16

Intelligence 16 IOCs YARA 11 File information Comments

SHA256 hash:	848fcb87c298f41af7286e75be0aeb88ddf92b38bf6d78e71228f8017b20bf78
SHA3-384 hash:	e045b3e4b00690db30a579076737175aa3d3db5371d54c053a1183a40fef1c9c2eaca24d3876aa2db93ac41b2dae8eae
SHA1 hash:	167f9d9571295b2251682f96238f97222cb14c7d
MD5 hash:	4f28c7e306ef14fac49c92aefac9d207
humanhash:	whiskey-beer-lion-hotel
File name:	4f28c7e306ef14fac49c92aefac9d207.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	850'432 bytes
First seen:	2022-08-09 18:29:16 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	12288:AWNHZ+8yD03GoJsDaCfuG0p+1MYD96Efbu6rGbSozxt6in+4eAwRXIbUDbLDuXk7:AW8uGGAlfprCSSxt6qe9IbUDHDlD
Threatray	4'994 similar samples on MalwareBazaar
TLSH	T1C0058D17AFA47608D4F75BB9DC2B687183F63809717EE2792E905C9B2DFA301D40162B
TrID	61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 11.0% (.SCR) Windows screen saver (13101/52/3) 8.8% (.EXE) Win64 Executable (generic) (10523/12/4) 5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):
dhash icon	c6ccc84ec8cc8ad8 (10 x AgentTesla, 10 x Formbook, 7 x SnakeKeylogger)
Reporter	abuse_ch
Tags:	AsyncRAT exe RAT

Intelligence

File Origin

# of uploads :

# of downloads :

315

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

asyncrat

ID:

File name:

4f28c7e306ef14fac49c92aefac9d207.exe

Verdict:

Malicious activity

Analysis date:

2022-08-09 18:35:43 UTC

Tags:

asyncrat

Link:

https://app.any.run/tasks/b4a5e428-a042-4690-8f40-f558add1c16a

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/297486/

Detection(s):

SecuriteInfo.com.Trojan.PackedNET.1429.11818.30275.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a custom TCP request

Launching a process

Creating a process with a hidden window

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

explorer.exe packed

Link:

https://www.filescan.io/uploads/62f2a7ce810e2831b7308191/reports/edeb35f9-1957-4213-974f-7bf67e0013b1/overview

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/b835760c-af02-490d-8985-6a2979529fd3

Result

Threat name:

AsyncRAT

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1048818

Signature

.NET source code contains potential unpacker

Adds a directory exclusion to Windows Defender

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected AntiVM3

Yara detected AsyncRAT

Yara detected Generic Downloader

Behaviour

Behavior Graph:

Download SVG

Detection:

asyncrat

Link:

https://mwdb.cert.pl/sample/848fcb87c298f41af7286e75be0aeb88ddf92b38bf6d78e71228f8017b20bf78/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2022-08-08 07:04:52 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 26 (73.08%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=qsh4xb6ctd2bv5zinz234cxlrdo7skzyx5wxrzysfd4ac6zax54a._file

Verdict:

malicious

Label(s):

asyncrat

AsyncRAT

16fc0cec13d88da3d0a36e4c42e733db8f1e21cafc18fd813a25cd0bc835f35a

AsyncRAT

2e75072eae7fa044b3ee05b2ba378823bbfa3091ceb5612f33b637c0d0764a21

AsyncRAT

438e8f8d626ca18bb5fbd3499cad058033b199c865badba6415e362d5b8dcd49

AsyncRAT

4964c618368217328e5fb70c84e047f18e5027ae0e6ea984b1b96c38ffad77c7

AsyncRAT

6527e25f86c1902c430fc0e52769359f831365969c35fc12ef837b7b63fcc939

AsyncRAT

f0e61a30a68cacde89ef636511dfae2b488bcbe9b47053c3afc0718d66324f70

AsyncRAT

f85fb30beeceb9e2721aa12deee155bb604c0a364f926da18644af7e6e5c7a25

AsyncRAT

f8d60cc318fc750f965180766b7edb64a81d86845b27b23f8d7bb0296adea2b7

AsyncRAT

+ 4'984 additional samples on MalwareBazaar

Result

Malware family:

asyncrat

Score:

10/10

Tags:

family:asyncrat botnet:default rat

Link:

https://tria.ge/reports/220809-w5gthafhg5/

Behaviour

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of SetThreadContext

Checks computer location settings

Async RAT payload

AsyncRat

Malware Config

C2 Extraction:

91.193.75.135:3030

Unpacked files

SH256 hash:

af78647a9a53ef6dbce8bca923e450845acf8e75090b33533693f67dee3d75fd

MD5 hash:

0ca7520dd240ee8a2d8f1116eae6c3d4

SHA1 hash:

b31f522c06dcf492407c9b76062e1b57bdb679ca

Link:

https://www.unpac.me/results/cdaa14f7-b06a-4875-b866-4f87a05562fb/

SH256 hash:

642d5b8aa52ca35d8386a5b4302aa503d330753426dd950e6c2a47efdbb4b7e2

MD5 hash:

2e85fdecd9837f0895ee6568f97b3cfd

SHA1 hash:

a4df92cf9adfa1c7d26f6d19923cbfa4cbfc596f

Link:

https://www.unpac.me/results/cdaa14f7-b06a-4875-b866-4f87a05562fb/

SH256 hash:

d9c4b82b94ede1f09563850d319aea01b3e20392b8e427635ef867eae407e185

MD5 hash:

974d9db9b10e5d8976e37e7979007812

SHA1 hash:

81dedc4c0b1a0ffafcebd5e0f2196bd93f5f9f03

Link:

https://www.unpac.me/results/cdaa14f7-b06a-4875-b866-4f87a05562fb/

SH256 hash:

9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034

MD5 hash:

93c6391d23c1aa1ed66fb13f82f2ee31

SHA1 hash:

220098c3047c32b51ae13a5cc1e9beeef3da6e18

Link:

https://www.unpac.me/results/cdaa14f7-b06a-4875-b866-4f87a05562fb/

SH256 hash:

2d5d507029c0825226f2b9f5879e05b55ab25aa4d7e9e1dc4062a0e5945b5628

MD5 hash:

b7493b9ad376b4284725f717369e139f

SHA1 hash:

0ce2078044fdc02acdfdaa52a40ba10d1fd0b730

Detections:

win_asyncrat_w0

AsyncRAT

Link:

https://www.unpac.me/results/cdaa14f7-b06a-4875-b866-4f87a05562fb/

Parent samples :

d76882be8d96e53f625b110158fd7e480dd2cabe8a49ffd8fedcdba1e910706a
1ff6bf7100615aa6399e056545506994d74049a76ceab8d7d12a95bdf119fd22
0928b349df8f28bc571a023fd30922269e62e65257236e0275e0c3e863cb4e0e
848fcb87c298f41af7286e75be0aeb88ddf92b38bf6d78e71228f8017b20bf78
2613eced323aa97af1eec9eee826e07badefae366cc6988eba8cab98a965e605
588820a7535e7676d317a5a5fa05530deba4e7ad4501bb99234166992f9c3673

SH256 hash:

848fcb87c298f41af7286e75be0aeb88ddf92b38bf6d78e71228f8017b20bf78

MD5 hash:

4f28c7e306ef14fac49c92aefac9d207

SHA1 hash:

167f9d9571295b2251682f96238f97222cb14c7d

Link:

https://www.unpac.me/results/cdaa14f7-b06a-4875-b866-4f87a05562fb/

Malware family:

AsyncRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/848fcb87c298/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/848fcb87c298f41af7286e75be0aeb88ddf92b38bf6d78e71228f8017b20bf78

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:	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:	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:	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:	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 848fcb87c298f41af7286e75be0aeb88ddf92b38bf6d78e71228f8017b20bf78

(this sample)

Cape

https://www.capesandbox.com/analysis/297486/

URLhaus

https://urlhaus.abuse.ch/url/2266114/

Delivery method

Distributed via web download

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