MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 52d37ef5f414ea192c1512f8740e0bb53e2d85ca04f133468a5267b491cb2ce6. 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: 14

Intelligence 14 IOCs YARA 20 File information Comments 1

SHA256 hash:	52d37ef5f414ea192c1512f8740e0bb53e2d85ca04f133468a5267b491cb2ce6
SHA3-384 hash:	c22b64f9132fc0c908bf4b780b90be07438215b3532247575cd785ac0c89412858adea8bb5a1904aefb8ffbe9c4b0cbb
SHA1 hash:	154fb9974cb4ca8afd2360ca2bf676993f43f2db
MD5 hash:	ba09f284f6f8acb6400d6d8ccddd0993
humanhash:	bluebird-blossom-tennis-nine
File name:	ba09f284f6f8acb6400d6d8ccddd0993
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	854'016 bytes
First seen:	2023-01-27 17:28:17 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'202 x SnakeKeylogger)
ssdeep	24576:2qO1lo4HqTEa+XMiZG7BAZJXKrAT35YnW/nuBvOfkMFEGmFz:H0cTEfpi+zXK8T35YiuBvOvhm
Threatray	459 similar samples on MalwareBazaar
TLSH	T1070523CA779CF259EB6601FC21C8A108C329959B8B45F4CF7C4F01E0261BB67A5953AF
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):
dhash icon	f0b86c3028e9b8f0 (2 x QuasarRAT, 1 x Loki)
Reporter	zbetcheckin
Tags:	32 exe QuasarRAT

Intelligence

File Origin

# of uploads :

# of downloads :

213

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

quasar

ID:

File name:

ba09f284f6f8acb6400d6d8ccddd0993

Verdict:

Malicious activity

Analysis date:

2023-01-27 17:28:58 UTC

Tags:

trojan evasion quasar

Link:

https://app.any.run/tasks/1f638c80-615a-4022-a7ba-8ba0de3f0b35

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/357574/

Detection(s):

PUA.Win.Packed.ConfuserEx-6582917-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Unauthorized injection to a recently created process

Creating a file

Searching for synchronization primitives

Launching the default Windows debugger (dwwin.exe)

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

confuserex packed quasarrat

Link:

https://www.filescan.io/uploads/63d409de89bd67c10fdacc3a/reports/946f4dd4-8efa-42bd-8ae2-8c198ede591f/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.

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/d7022139-4f9c-4ae0-b253-5cf1525384ee

Result

Threat name:

Quasar

Detection:

malicious

Classification:

troj

Score:

92 / 100

Link:

https://www.joesandbox.com/analysis/1160470

Signature

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

Yara detected Generic Downloader

Yara detected Quasar RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/52d37ef5f414ea192c1512f8740e0bb53e2d85ca04f133468a5267b491cb2ce6/

Threat name:

ByteCode-MSIL.Backdoor.QuasarRAT

Status:

Malicious

First seen:

2023-01-27 17:29:06 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 26 (73.08%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=kljx55puctvbslavcl4hidqlwu7c3bokatytgrukkjt3jeolftta._file

Verdict:

malicious

QuasarRAT

100f14bd43501076a1b9dc89bdbc702aadbe65054c05e4bdf9ad8f0000d1c699

QuasarRAT

126a6947bb766d06e7f1eb176b6fa573e72c72dd0f705a99df1e335b7839b134

QuasarRAT

52807927efca34144cfa56a3868a913858fa0fc74aeb0b370964688ec49f1312

QuasarRAT

5b507cc8ae7d2edc65f3c23cd89742d28c054eeea1a415dfe3f9ba9a427f33fc

QuasarRAT

b9d9a182e7f6f1afaf0f5058def2ca3e4e65f71a387c228c0a098b6c41b6d319

QuasarRAT

e1993021c0575594ff63f2685d56f1e80c60d6fc67e5e86ff1c5ef7b25f773d5

QuasarRAT

f29d669285f859b0ad90269aa5338bbad96e32369d02f9b8586ac5ede04cf9ce

QuasarRAT

+ 449 additional samples on MalwareBazaar

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:owl2 spyware trojan

Link:

https://tria.ge/reports/230127-v2jy1sdg4t/

Behaviour

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Looks up external IP address via web service

Executes dropped EXE

Quasar RAT

Quasar payload

Malware Config

C2 Extraction:

dnuocc.com:64594
www.dnuocc.com:64594
dnuocc.com:64588

Unpacked files

SH256 hash:

fdb7865b933ca403988dfa5e9b5bc1a7b119d4ba015f984799f2ab9c9c05fe41

MD5 hash:

3ceb8483c59c15269da3fa43af0bc23b

SHA1 hash:

08061538e850699c04d405a2f038d3d532d17f69

Link:

https://www.unpac.me/results/961ced9b-9564-49ac-8156-6421f3994ae6/

SH256 hash:

52d37ef5f414ea192c1512f8740e0bb53e2d85ca04f133468a5267b491cb2ce6

MD5 hash:

ba09f284f6f8acb6400d6d8ccddd0993

SHA1 hash:

154fb9974cb4ca8afd2360ca2bf676993f43f2db

Link:

https://www.unpac.me/results/961ced9b-9564-49ac-8156-6421f3994ae6/

Malware family:

xRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/52d37ef5f414/report/overview.html

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

Threat name:

Suspicious File

Score:

0.51

Link:

https://yomi.yoroi.company/submissions/52d37ef5f414ea192c1512f8740e0bb53e2d85ca04f133468a5267b491cb2ce6

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_EXE_Packed_ConfuserEx Create hunting rule
Author:	ditekSHen
Description:	Detects executables packed with ConfuserEx Mod

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:	Windows_Trojan_Quasarrat_e52df647 Create hunting rule
Author:	Elastic Security

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 52d37ef5f414ea192c1512f8740e0bb53e2d85ca04f133468a5267b491cb2ce6

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2520068/

Cape

https://www.capesandbox.com/analysis/357574/

Comments

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zbet commented on 2023-01-27 17:28:24 UTC

url : hxxps://www.js-hurling.com/jscontents/jscontentsdsg.exe