MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8dddf22e96a6a22b5ed6ddcab093052a7f2e5419a8e3edc25eee6fc4a90076f3. 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:	8dddf22e96a6a22b5ed6ddcab093052a7f2e5419a8e3edc25eee6fc4a90076f3
SHA3-384 hash:	a65e973ef64f9717676528961d05c959745a26cec8b81ff77ead71b28c289ee6c09afc7009f4dec791a8527b4cf8d7bf
SHA1 hash:	b85748cc2e04ebffbc71ffbfefdafe163415b911
MD5 hash:	2033c35ec94ce0d61ab4bfa1d34a0bb7
humanhash:	double-moon-leopard-earth
File name:	xwuy0TOcR3Em.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	356'352 bytes
First seen:	2023-03-27 10:49:23 UTC
Last seen:	2023-05-26 15:42:16 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'672 x AgentTesla, 19'489 x Formbook, 12'212 x SnakeKeylogger)
ssdeep	3072:0crt+8Hiefcu00MKpyDcsvPLxge9CUqcojBHLK9EThSbkKiWAEDjARQfWhk9fedo:02NHXf500MVRoVHLOpb9ihQfL9cOKNW
Threatray	380 similar samples on MalwareBazaar
TLSH	T1F3747C1373A8E93BD1BD277AF43206144BB1D45BB716E38B6A5855F82C233868E503B7
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 :

283

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

quasar

ID:

File name:

xwuy0TOcR3Em.exe

Verdict:

Malicious activity

Analysis date:

2023-03-27 10:52:23 UTC

Tags:

rat quasar evasion

Link:

https://app.any.run/tasks/a5762d1f-9187-4519-a591-3e39cdcd0ada

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/377873/

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

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

Query of malicious DNS domain

Sending a TCP request to an infection source

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

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

Link:

https://www.filescan.io/uploads/642174dd9c109cf74b300fd1/reports/3c6f696c-2973-4a97-aa28-3e7a14651261/overview

Verdict:

Malicious

Labled as:

MSIL.PasswordStealerA.Generic

Link:

https://www.hybrid-analysis.com/sample/8dddf22e96a6a22b5ed6ddcab093052a7f2e5419a8e3edc25eee6fc4a90076f3

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/1d7ae031-ffbd-406c-bd42-4f243ac0402f

Result

Threat name:

Quasar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1202604

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

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

Snort IDS alert for network traffic

Yara detected Generic Downloader

Yara detected Quasar RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

quasar

Link:

https://mwdb.cert.pl/sample/8dddf22e96a6a22b5ed6ddcab093052a7f2e5419a8e3edc25eee6fc4a90076f3/

Threat name:

ByteCode-MSIL.Trojan.Quasar

Status:

Malicious

First seen:

2023-03-27 10:50:09 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

23 of 24 (95.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=rxo7eluwu2rcwxww3xflbeyffj7s4vazvdr63qs65zx4jkiao3zq._file

Verdict:

malicious

QuasarRAT

2b8e46b7d6a130a487fd2ec995792b32bf3857b897e688ed4bde08a693f44f31

QuasarRAT

6ff685e5acfd946101b558f9f9d47a0d515c62e7476f5f83694609d64343315e

QuasarRAT

724ff8546f194ffa5aadb446a00a6476aceedda46114bb9ad8f8ad9f32e27493

QuasarRAT

aff9dae78f13a7e13244cf022de01470272b00e4f6961a40a61c9e9c9b8ca7ed

QuasarRAT

c0393c1c87a785bc946286f6053de656560728aec5e9f97a8eddf12ee0f4b8a4

QuasarRAT

d6fd21b13e5ffc0c0e56118f2154ede679b0100afdbf093a660d5dc7a427f34b

QuasarRAT

+ 370 additional samples on MalwareBazaar

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:capetown spyware trojan

Link:

https://tria.ge/reports/230327-mw9ngsfb7s/

Behaviour

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Looks up external IP address via web service

Checks computer location settings

Deletes itself

Quasar RAT

Quasar payload

Malware Config

C2 Extraction:

rick63.publicvm.com:6440

Unpacked files

SH256 hash:

8dddf22e96a6a22b5ed6ddcab093052a7f2e5419a8e3edc25eee6fc4a90076f3

MD5 hash:

2033c35ec94ce0d61ab4bfa1d34a0bb7

SHA1 hash:

b85748cc2e04ebffbc71ffbfefdafe163415b911

Link:

https://www.unpac.me/results/ecb1c984-fd4b-4fa2-85c6-4e70305e38aa/

Malware family:

xRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/8dddf22e96a6/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/8dddf22e96a6a22b5ed6ddcab093052a7f2e5419a8e3edc25eee6fc4a90076f3

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 8dddf22e96a6a22b5ed6ddcab093052a7f2e5419a8e3edc25eee6fc4a90076f3

(this sample)

Link

https://www.virustotal.com/gui/file/8dddf22e96a6a22b5ed6ddcab093052a7f2e5419a8e3edc25eee6fc4a90076f3/detection

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/377873/

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