MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2b8e46b7d6a130a487fd2ec995792b32bf3857b897e688ed4bde08a693f44f31. 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

QuasarRAT

Vendor detections: 16

Intelligence 16 IOCs YARA 17 File information Comments 1

SHA256 hash:	2b8e46b7d6a130a487fd2ec995792b32bf3857b897e688ed4bde08a693f44f31
SHA3-384 hash:	2751d8803a15773ccba8ac4c0653e4a9bded5990966d68f7763350d30662a8956514b3127f5af1725e6e8452f13df1c6
SHA1 hash:	e7f08d42933486b42d9f02b4a76eef71fe7d13b7
MD5 hash:	540e93453836fe615cd34c78ea43e74b
humanhash:	quiet-item-london-carpet
File name:	540e93453836fe615cd34c78ea43e74b
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	356'352 bytes
First seen:	2022-08-17 06:41:58 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'202 x SnakeKeylogger)
ssdeep	6144:j2NHXf500MMF2nuSgOqbVibVlvY5bT6vaRVYIsuGhnUK:6d50C2JgDlxV3suMnUK
Threatray	377 similar samples on MalwareBazaar
TLSH	T10E748D1377A4EA3BE1BE173AE43206154BB5D847761AE3CF9A5845B92C533C68D803B3
TrID	53.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 12.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 9.6% (.SCR) Windows screen saver (13101/52/3) 7.7% (.EXE) Win64 Executable (generic) (10523/12/4) 4.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter	zbetcheckin
Tags:	32 exe QuasarRAT

Intelligence

File Origin

# of uploads :

# of downloads :

228

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

quasar

ID:

File name:

540e93453836fe615cd34c78ea43e74b

Verdict:

Malicious activity

Analysis date:

2022-08-17 06:43:59 UTC

Tags:

rat quasar trojan evasion

Link:

https://app.any.run/tasks/ffc8d48a-e2c7-4c60-bdac-ae0317395933

Note:

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

Detection:

QuasarRAT

Link:

https://www.capesandbox.com/analysis/299160/

Detection(s):

Win.Packed.Generic-9829635-0

Win.Trojan.Generic-9829636-0

Win.Packed.Generic-9830106-0

Win.Trojan.Generic-6295765-0

Win.Malware.Generic-6623004-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Using the Windows Management Instrumentation requests

Сreating synchronization primitives

DNS request

Sending an HTTP GET request

Setting a keyboard event handler

Creating a file in the %AppData% subdirectories

Creating a window

Sending a custom TCP request

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm fingerprint greyware keylogger packed quasar quasarrat rat shell32.dll stealer stealer vermin xrat

Link:

https://www.filescan.io/uploads/62fc8dc5a6276e777d270c28/reports/976728ff-79ab-45a2-aa31-aad6489b48cf/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:

Quasar RAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/74bccfc9-1cd8-4125-b634-368597d1a9d3

Result

Threat name:

AsyncRAT, Quasar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1052868

Signature

.NET source code references suspicious native API functions

Antivirus / Scanner detection for submitted sample

C2 URLs / IPs found in malware configuration

Hides that the sample has been downloaded from the Internet (zone.identifier)

Installs a global keyboard hook

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

May check the online IP address of the machine

Multi AV Scanner detection for submitted file

Snort IDS alert for network traffic

Yara detected AsyncRAT

Yara detected Generic Downloader

Yara detected Quasar RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

quasar

Link:

https://mwdb.cert.pl/sample/2b8e46b7d6a130a487fd2ec995792b32bf3857b897e688ed4bde08a693f44f31/

Threat name:

ByteCode-MSIL.Trojan.Quasar

Status:

Malicious

First seen:

2022-08-17 06:42:08 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

26 of 26 (100.00%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=fohenn6wueykjb75f3ezk6jlgk7tqv5ys7tir3kl3yekne7uj4yq._file

Verdict:

malicious

QuasarRAT

539e45b1f7d67766a32c951c59325d4e045892da59661b2b569a3389a1ff6f5e

QuasarRAT

66c0b3969424c37bc46498d8f51e9cd6c82ac5a66b50302fa1d13a4ac2d82e6d

QuasarRAT

695722bddb32724a102d8d12aca0ebc841c4944f52632c3ea595941a6e988759

QuasarRAT

6ff685e5acfd946101b558f9f9d47a0d515c62e7476f5f83694609d64343315e

QuasarRAT

724ff8546f194ffa5aadb446a00a6476aceedda46114bb9ad8f8ad9f32e27493

QuasarRAT

8b21d5d222c521b730f85690aa3f88c00b2c9ce7e8b208564509e093b5eed814

QuasarRAT

b2cc06da4ded75a02683e73536f3a0af671b55bc28c9a2627d7afdaac66b9e32

QuasarRAT

+ 367 additional samples on MalwareBazaar

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:renew spyware trojan

Link:

https://tria.ge/reports/220817-hgb2fsehd5/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Looks up external IP address via web service

Quasar RAT

Quasar payload

Malware Config

C2 Extraction:

51.12.244.74:3788

Unpacked files

SH256 hash:

2b8e46b7d6a130a487fd2ec995792b32bf3857b897e688ed4bde08a693f44f31

MD5 hash:

540e93453836fe615cd34c78ea43e74b

SHA1 hash:

e7f08d42933486b42d9f02b4a76eef71fe7d13b7

Link:

https://www.unpac.me/results/62ab81b4-d54b-4870-b8ed-53b9376186af/

Malware family:

xRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/2b8e46b7d6a1/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/2b8e46b7d6a130a487fd2ec995792b32bf3857b897e688ed4bde08a693f44f31

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:	CN_disclosed_20180208_KeyLogger_1 Create hunting rule
Author:	Florian Roth
Description:	Detects malware from disclosed CN malware set
Reference:	https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details

Rule name:	CN_disclosed_20180208_KeyLogger_1_RID3227 Create hunting rule
Author:	Florian Roth
Description:	Detects malware from disclosed CN malware set
Reference:	https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details

Rule name:	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA Create hunting rule
Author:	ditekSHen
Description:	Detects Windows executables referencing non-Windows User-Agents

Rule name:	INDICATOR_SUSPICIOUS_GENInfoStealer Create hunting rule
Author:	ditekSHen
Description:	Detects executables containing common artifcats observed in infostealers

Rule name:	malware_Quasar_strings Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect QuasarRAT in memory

Rule name:	MALWARE_Win_QuasarRAT Create hunting rule
Author:	ditekSHen
Description:	QuasarRAT payload

Rule name:	MAL_QuasarRAT_May19_1 Create hunting rule
Author:	Florian Roth
Description:	Detects QuasarRAT malware
Reference:	https://blog.ensilo.com/uncovering-new-activity-by-apt10

Rule name:	MAL_QuasarRAT_May19_1_RID2E1E Create hunting rule
Author:	Florian Roth
Description:	Detects QuasarRAT malware
Reference:	https://blog.ensilo.com/uncovering-new-activity-by-apt10

Rule name:	pe_imphash Create hunting rule

Rule name:	Quasar_RAT_1 Create hunting rule
Author:	Florian Roth
Description:	Detects Quasar RAT
Reference:	https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf

Rule name:	Quasar_RAT_1_RID2B54 Create hunting rule
Author:	Florian Roth
Description:	Detects Quasar RAT
Reference:	https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf

Rule name:	Quasar_RAT_2 Create hunting rule
Author:	Florian Roth
Description:	Detects Quasar RAT
Reference:	https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf

Rule name:	Quasar_RAT_2_RID2B55 Create hunting rule
Author:	Florian Roth
Description:	Detects Quasar RAT
Reference:	https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	Vermin_Keylogger_Jan18_1 Create hunting rule
Author:	Florian Roth
Description:	Detects Vermin Keylogger
Reference:	https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/

Rule name:	xRAT_1 Create hunting rule
Author:	Florian Roth
Description:	Detects Patchwork malware
Reference:	https://goo.gl/Pg3P4W

Rule name:	xRAT_1_RID2900 Create hunting rule
Author:	Florian Roth
Description:	Detects Patchwork malware
Reference:	https://goo.gl/Pg3P4W

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

QuasarRAT

exe 2b8e46b7d6a130a487fd2ec995792b32bf3857b897e688ed4bde08a693f44f31

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2273817/

Cape

https://www.capesandbox.com/analysis/299160/

Comments

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zbet commented on 2022-08-17 06:42:11 UTC

url : hxxp://109.206.241.81/htdocs/RwFrZAZtSsQTHJb.exe