MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fd39f37e9252c859a76f65c193c869826503be3c815eab4e95cd883be307a550. 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: 15

Intelligence 15 IOCs YARA 15 File information Comments

SHA256 hash:	fd39f37e9252c859a76f65c193c869826503be3c815eab4e95cd883be307a550
SHA3-384 hash:	ec51b79b7556c15a77137ce8cd40554587acf6eae4970b17d07ff0709c2909e7c61ddaa456fee5b91e96cedb2245479a
SHA1 hash:	b0a80e78eacae466133fd99bcb55d18c08604188
MD5 hash:	3e2647ddf841fd56db65ef710f6801f8
humanhash:	blue-tennis-thirteen-wyoming
File name:	3e2647ddf841fd56db65ef710f6801f8.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	48'640 bytes
First seen:	2023-10-11 19:07:15 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep	768:dOEuILWCKi+DiBtelDSN+iV08YbygecKmhOvEgK/J9lZVc6KN:dOtmBtKDs4zb1DKVnkJ3ZVclN
Threatray	813 similar samples on MalwareBazaar
TLSH	T119235C4037A88136F2BD47B4ACF3E2418679E66B6903C6596CC814EA1F13FC596136FE
TrID	60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.8% (.SCR) Windows screen saver (13097/50/3) 8.7% (.EXE) Win64 Executable (generic) (10523/12/4) 5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter	abuse_ch
Tags:	AsyncRAT exe RAT

Intelligence

File Origin

# of uploads :

# of downloads :

270

Origin country :

Vendor Threat Intelligence

Malware family:

asyncrat

ID:

File name:

3e2647ddf841fd56db65ef710f6801f8.exe

Verdict:

Malicious activity

Analysis date:

2023-10-11 19:42:28 UTC

Tags:

rat asyncrat remote

Link:

https://app.any.run/tasks/079f42bd-cae3-4cc4-898f-29f32d14111a

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/453403/

Detection(s):

Sanesecurity.Malware.29669.UNOFFICIAL

Win.Malware.Generickdz-9865912-0

Win.Malware.Enigmaprotector-9874743-0

Win.Malware.Enigmaprotector-9881027-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

Sending a custom TCP request

Using the Windows Management Instrumentation requests

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-debug anti-vm asyncrat configsecuritypolicy evasive hacktool lolbin lolbin mpcmdrun msconfig njrat packed rat regedit replace

Link:

https://www.filescan.io/uploads/6526f29224a90472670974c6/reports/1f923e23-b597-45f4-a055-43fe14f27884/overview

Verdict:

Malicious

Labled as:

Backdoo.1BBEAE4C

Link:

https://www.hybrid-analysis.com/sample/fd39f37e9252c859a76f65c193c869826503be3c815eab4e95cd883be307a550

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.

Gathering data

Result

Threat name:

AsyncRAT, DcRat

Detection:

malicious

Classification:

troj.evad

Score:

88 / 100

Link:

https://www.joesandbox.com/analysis/1324044

Signature

.NET source code references suspicious native API functions

Antivirus / Scanner detection for submitted sample

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Snort IDS alert for network traffic

Yara detected AsyncRAT

Yara detected DcRat

Behaviour

Behavior Graph:

Download SVG

Detection:

dcrat

Link:

https://mwdb.cert.pl/sample/fd39f37e9252c859a76f65c193c869826503be3c815eab4e95cd883be307a550/

Threat name:

ByteCode-MSIL.Backdoor.AsyncRAT

Status:

Malicious

First seen:

2023-10-07 15:48:03 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

31 of 38 (81.58%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=7u47g7uskleftj3pmxazhsdjqjsqhpr4qfpkwtuvzwedxyyhuvia._file

Verdict:

malicious

Result

Malware family:

asyncrat

Score:

10/10

Tags:

family:asyncrat botnet:default rat

Link:

https://tria.ge/reports/231011-xs71lahd66/

Behaviour

Suspicious use of AdjustPrivilegeToken

Async RAT payload

AsyncRat

Malware Config

C2 Extraction:

18.118.199.163:80

Unpacked files

SH256 hash:

fd39f37e9252c859a76f65c193c869826503be3c815eab4e95cd883be307a550

MD5 hash:

3e2647ddf841fd56db65ef710f6801f8

SHA1 hash:

b0a80e78eacae466133fd99bcb55d18c08604188

Detections:

DCRat

Link:

https://www.unpac.me/results/5494bbae-8846-46b5-92c8-388b5efec04b/

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/fd39f37e9252c859a76f65c193c869826503be3c815eab4e95cd883be307a550

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:	AcRat Create hunting rule
Author:	Nikos 'n0t' Totosis
Description:	AcRat Payload (based on AsyncRat)

Rule name:	INDICATOR_SUSPICIOUS_EXE_B64_Artifacts Create hunting rule
Author:	ditekSHen
Description:	Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.

Rule name:	INDICATOR_SUSPICIOUS_EXE_DcRatBy Create hunting rule
Author:	ditekSHen
Description:	Detects executables containing the string DcRatBy

Rule name:	INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice Create hunting rule
Author:	ditekSHen
Description:	Detects executables attemping to enumerate video devices using WMI

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:	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:	Windows_Trojan_DCRat_1aeea1ac Create hunting rule
Author:	Elastic Security

Rule name:	win_asyncrat_unobfuscated Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects strings present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)