MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 db914bd57e726ca85a49a1747e81e86c89c3548ad941727a8d6c7d8b5eafa04f. 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: 8

Intelligence 8 IOCs YARA 1 File information Comments

SHA256 hash:	db914bd57e726ca85a49a1747e81e86c89c3548ad941727a8d6c7d8b5eafa04f
SHA3-384 hash:	a9e283ca75f14ab9b1bfbaad8bc72e7c089cb46d7ad2b312ac97634613d974b6e45321d89b65c45f9022070cb73a88b3
SHA1 hash:	96cb3bdf0318a4aa63462b0a56126109be6fc6ba
MD5 hash:	1da23540408db1cbe7d2ce55b590492c
humanhash:	burger-rugby-alpha-arkansas
File name:	BL-040820.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	971'264 bytes
First seen:	2020-08-04 09:29:42 UTC
Last seen:	2020-08-12 07:54:07 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:bytD8HOJrTGBuMq1V5p4wJ8hkdTq8HFKERhtLvclpP9IF:bY8H2GBuJVJZ9FKERhtDkpP6F
Threatray	332 similar samples on MalwareBazaar
TLSH	5125D883B41C8571CE355B3D48128DD453F23C5D9F8AB20627A4BD3EE4BE4525E2FA4A
Reporter	abuse_ch
Tags:	AsyncRAT exe nVpn RAT

abuse_ch

Malspam distributing AsyncRAT:

From: Michela Luriani <michela.lurianl@bleuline.it >
Subject: Richiesta urgente per i prodotti allegati
Attachment: BL-040820.iso (contains "BL-040820.exe")

AsyncRAT C2s:
194.5.97.4:8824

Hosted on nVpn:

% Information related to '194.5.97.0 - 194.5.97.255'

% Abuse contact for '194.5.97.0 - 194.5.97.255' is 'abuse@kgb-vpn.org'

inetnum: 194.5.97.0 - 194.5.97.255
netname: NET-NINAZU
remarks: ------------------------------------------
remarks: * This network is used for a VPN service.
remarks: * No logs are stored in any shape or form.
remarks: ------------------------------------------
country: EU
admin-c: NVS100-RIPE
tech-c: NVS100-RIPE
org: ORG-NVS2-RIPE
mnt-by: NINAZU-MNT
status: SUB-ALLOCATED PA
created: 2018-07-23T09:31:45Z
last-modified: 2020-08-02T13:13:48Z
source: RIPE

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/38411/

Detection(s):

SecuriteInfo.com.Trojan.PWS.Stealer.29005.22383.30107.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Result

Threat name:

AsyncRAT

Detection:

malicious

Classification:

troj.evad

Score:

88 / 100

Link:

https://www.joesandbox.com/analysis/408982

Signature

Connects to a pastebin service (likely for C&C)

Machine Learning detection for dropped file

Machine Learning detection for sample

Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)

Sigma detected: Scheduled temp file as task from temp location

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 AntiVM_3

Yara detected AsyncRAT

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/db914bd57e726ca85a49a1747e81e86c89c3548ad941727a8d6c7d8b5eafa04f/

Threat name:

ByteCode-MSIL.Infostealer.Fareit

Status:

Malicious

First seen:

2020-08-04 09:31:05 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

21 of 28 (75.00%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=3oiuxvl6ojwkqwsjuf2h5apinse4gvek3faxe6unnr6ywxvpubhq._file

Verdict:

suspicious

Result

Malware family:

asyncrat

Score:

10/10

Tags:

rat family:asyncrat evasion

Link:

https://tria.ge/reports/200804-re2xykj9je/

Behaviour

Suspicious use of AdjustPrivilegeToken

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Maps connected drives based on registry

Legitimate hosting services abused for malware hosting/C2

Checks BIOS information in registry

Looks for VMWare Tools registry key

Async RAT payload

Looks for VirtualBox Guest Additions in registry

AsyncRat

Malware family:

AsyncRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/db914bd57e72/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

NJRat

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/db914bd57e726ca85a49a1747e81e86c89c3548ad941727a8d6c7d8b5eafa04f

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.