MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 54346a7a040be3f21373bf39fd0ed63b9cf06ebd666d6b182de45eeec8a8c08f. 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: 17

Intelligence 17 IOCs YARA 18 File information Comments

SHA256 hash:	54346a7a040be3f21373bf39fd0ed63b9cf06ebd666d6b182de45eeec8a8c08f
SHA3-384 hash:	2a622b63f91da69dc62a943f6def05c7057663b5ce945692f37d7eda88b6ead8bf920eb1aca11b4f195275577074a29d
SHA1 hash:	1982d1f4db613e59c207d0cb18b334e2a14ed25e
MD5 hash:	783bcfc490ace5728505dea1e693d651
humanhash:	jupiter-wisconsin-sink-green
File name:	bKDP.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	356'352 bytes
First seen:	2023-03-20 21:07:22 UTC
Last seen:	2023-03-20 21:08:00 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'672 x AgentTesla, 19'489 x Formbook, 12'212 x SnakeKeylogger)
ssdeep	6144:gw6bPXhLApfp2KU4om6y8obATb5eoAlfCOxgA3fjHHVc6:BmhAp1t8ThD42APjHHi6
Threatray	361 similar samples on MalwareBazaar
TLSH	T136747C2373E8EA3BD6FD173AF432061547B0DA46B612E38B5A5C55F82C133868D953A3
TrID	53.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 12.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 9.5% (.SCR) Windows screen saver (13097/50/3) 7.6% (.EXE) Win64 Executable (generic) (10523/12/4) 4.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter	pmelson
Tags:	exe QuasarRAT VoidRAT

Intelligence

File Origin

# of uploads :

# of downloads :

309

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

quasar

ID:

File name:

bKDP.exe

Verdict:

Malicious activity

Analysis date:

2023-03-20 21:11:01 UTC

Tags:

rat quasar evasion

Link:

https://app.any.run/tasks/94e4e491-20ab-4439-8d70-2299e2daa95a

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/376008/

Detection(s):

Win.Packed.Generic-9829635-0

Win.Packed.Generic-9830106-0

Win.Trojan.Generic-6295765-0

Win.Malware.Generic-6623004-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Sending a custom TCP request

Using the Windows Management Instrumentation requests

Сreating synchronization primitives

DNS request

Sending an HTTP GET request

Creating a window

Verdict:

Malicious

Threat level:

10/10

Confidence:

83%

Tags:

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

Link:

https://www.filescan.io/uploads/6418cb333b01ade53e6fcb58/reports/fe141222-22e4-4f6f-88d5-b156d83d509f/overview

Verdict:

Malicious

Labled as:

MSIL.PasswordStealerA.Generic

Link:

https://www.hybrid-analysis.com/sample/54346a7a040be3f21373bf39fd0ed63b9cf06ebd666d6b182de45eeec8a8c08f

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/0bce5c79-a313-4901-93f4-568eb1e41b31

Result

Threat name:

Quasar

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1198080

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

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

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

Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)

Snort IDS alert for network traffic

Uses dynamic DNS services

Yara detected Generic Downloader

Yara detected Quasar RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

quasar

Link:

https://mwdb.cert.pl/sample/54346a7a040be3f21373bf39fd0ed63b9cf06ebd666d6b182de45eeec8a8c08f/

Threat name:

ByteCode-MSIL.Trojan.Quasar

Status:

Malicious

First seen:

2023-03-20 21:08:08 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

22 of 24 (91.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=kq2gu6qebpr7ee3tx4472dwwhoopa3v5mzwwwgbn4rpo5sfiychq._file

Verdict:

malicious

QuasarRAT

4c6c1c0d7925af6c2891164d67743204132fcc8ea3cda471c005f446ea1cfda1

QuasarRAT

51ad568171d6a835bc1edd45cfe1fee659085dfc4522ac3d93c1458688d44bd5

QuasarRAT

810bbf258484b94bf2e51c7fba2f8a19f6aaf1137c982d2d6a97e600159c16fa

QuasarRAT

904a518a8c867a1fd79e963fcdd317aa9f5a76eb6964b027cb0566d4a87102d7

QuasarRAT

9cdcc531878d3a23d2da833a058efa100b91d212e4d5780cb21d5d36db0cbd01

QuasarRAT

b71d6728f8709dc2b8b6a57bbd0ea7d27e78a0ea16af5eff61b2d11f983e0129

QuasarRAT

b7f09be3bf95632ac3219b3d402a419e9bc40a54a3fc6ac1c57c183798e525fe

QuasarRAT

d4b9e53f5c6c5a187fe5c8f20c855f0e6aa938931052b80af1413b99580e3750

QuasarRAT

ee1b2c9bdba344c7fe2dc2bec7544a038ad64dbed6add636ecdd426079296c28

QuasarRAT

+ 351 additional samples on MalwareBazaar

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:office04 spyware trojan

Link:

https://tria.ge/reports/230320-zyv94ahd3t/

Behaviour

Suspicious use of AdjustPrivilegeToken

Looks up external IP address via web service

Quasar RAT

Quasar payload

Malware Config

C2 Extraction:

myhost88.ddns.net:4782

Unpacked files

SH256 hash:

54346a7a040be3f21373bf39fd0ed63b9cf06ebd666d6b182de45eeec8a8c08f

MD5 hash:

783bcfc490ace5728505dea1e693d651

SHA1 hash:

1982d1f4db613e59c207d0cb18b334e2a14ed25e

Link:

https://www.unpac.me/results/90206a97-44fb-496d-b6e1-09ebf5c104ec/

Malware family:

xRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/54346a7a040b/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/54346a7a040be3f21373bf39fd0ed63b9cf06ebd666d6b182de45eeec8a8c08f

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 (Nextron Systems)
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 (Nextron Systems)
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 (Nextron Systems)
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 (Nextron Systems)
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 (Nextron Systems)
Description:	Detects Vermin Keylogger
Reference:	https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/

Rule name:	Windows_Trojan_Quasarrat_e52df647 Create hunting rule
Author:	Elastic Security

Rule name:	xRAT_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
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 54346a7a040be3f21373bf39fd0ed63b9cf06ebd666d6b182de45eeec8a8c08f

(this sample)

Link

https://www.virustotal.com/gui/file/54346a7a040be3f21373bf39fd0ed63b9cf06ebd666d6b182de45eeec8a8c08f/detection

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/376008/

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