MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9e40aacf77d0caed41a3670eaa817ae178493ccfdaf28875eaa0b16d7a63eb8b. 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: 22

Intelligence 22 IOCs 1 YARA 23 File information Comments

SHA256 hash:	9e40aacf77d0caed41a3670eaa817ae178493ccfdaf28875eaa0b16d7a63eb8b
SHA3-384 hash:	5f2706998cbc84aa55c23995c953ada79927695aab063503a781c895035c46fa007cd65e1ae182b1bc72aa7a343bfebe
SHA1 hash:	e4729cfea11996f63ce99a70658ece7d40017d2c
MD5 hash:	12424064e68c62ea927e16acc4ec5e8f
humanhash:	eight-eight-blossom-violet
File name:	12424064e68c62ea927e16acc4ec5e8f.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	784'384 bytes
First seen:	2026-10-21 17:50:07 UTC
Last seen:	Never
File type:	exe
MIME type:	application/vnd.microsoft.portable-executable
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'298 x AgentTesla, 20'717 x Formbook, 12'402 x SnakeKeylogger)
ssdeep	12288:RTEgdfY8bgwSksQZukU4dJWz0eXIYcdL:SUwwf3Wz0eXlcdL
TLSH	T17FF43A8093E8852AE5AF4B79E8311A1997F2FC36B5B2DB8F0D4674AD197F3034C41663
TrID	60.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 13.7% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 5.4% (.EXE) Win64 Executable (generic) (6522/11/2) 4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika	pebin
dhash icon	000f8b260e1e9e04 (1 x QuasarRAT)
Reporter	abuse_ch
Tags:	exe QuasarRAT RAT

abuse_ch

QuasarRAT C2:
193.161.193.99:42082

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOC	ThreatFox Reference
193.161.193.99:42082	https://threatfox.abuse.ch/ioc/1978568/

Intelligence

File Origin

# of uploads :

# of downloads :

173

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

QuasarRAT

Details

Link:

https://research.acce.ciphertechsolutions.com/results/e1e723d9-580c-4225-849a-79fd698657d7/

Malware family:

quasar

ID:

File name:

exe

Verdict:

Malicious activity

Analysis date:

2026-10-21 18:27:07 UTC

Tags:

rat purehvnc quasar remote

Link:

https://app.any.run/tasks/37cc4800-862a-493c-8fec-6d57e7a6eb1d

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/93683/

Detection(s):

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL

Win.Malware.Generic-9883082-0

Win.Malware.Generic-9883083-0

Win.Packed.Downeks-6898097-0

YARA.DITEKSHEN_MALWARE_Win_Quasarstealer.UNOFFICIAL

YARA.SIGNATURE_BASE_MAL_Quasarrat_May19_1.UNOFFICIAL

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ad8fb5e5a22ac805bd91c99

Tags:

infosteal asyncrat quasar

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating synchronization primitives

Connection attempt to an infection source

Setting a keyboard event handler

Launching a service

Query of malicious DNS domain

Sending a TCP request to an infection source

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm base64 crypto explorer fingerprint infostealer lolbin obfuscated obfuscated quasarrat quasarrat reconnaissance remoteaccesstool runonce schtasks stealer

Link:

https://www.filescan.io/uploads/6ad8fb5ceea3d8851625ebc4/reports/ba42757e-fdf0-46a9-8703-ad16fadfc5e6/overview

Verdict:

Malicious

Labled as:

MSIL.PasswordStealerA.Generic

Link:

https://www.hybrid-analysis.com/sample/9e40aacf77d0caed41a3670eaa817ae178493ccfdaf28875eaa0b16d7a63eb8b

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-10-18T19:31:00Z UTC

Last seen:

2026-10-23T02:34:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/9e40aacf77d0caed41a3670eaa817ae178493ccfdaf28875eaa0b16d7a63eb8b/results?tab=lookup

Malware family:

Quasar RAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/f9c86137-0e5b-4783-9268-16501a44c90a

Result

Threat name:

Quasar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1990238

Signature

.NET source code contains potential unpacker

Antivirus / Scanner detection for submitted sample

Found malware configuration

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

Installs a global keyboard hook

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Sample uses string decryption to hide its real strings

Suricata IDS alerts for network traffic

Yara detected Quasar RAT

Behaviour

Behavior Graph:

Download SVG

Score:

95%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/9e40aacf77d0caed41a3670eaa817ae178493ccfdaf28875eaa0b16d7a63eb8b

Verdict:

QuasarRat

YARA:

13 match(es)

Tags:

.Net Executable Malicious Managed .NET PE (Portable Executable) PE File Layout QuasarRat RAT SOS: 0.32 Win 32 Exe x86

Malware Config

C2 Extraction:

PORT: 42082
CNC: patri00-42082.portmap.host

Link:

https://app.malva.re/file/12424064e68c62ea927e16acc4ec5e8f

Detection:

quasar

Link:

https://mwdb.cert.pl/sample/9e40aacf77d0caed41a3670eaa817ae178493ccfdaf28875eaa0b16d7a63eb8b/

Threat name:

ByteCode-MSIL.Backdoor.Quasar

Status:

Malicious

First seen:

2026-10-18 11:56:05 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

23 of 24 (95.83%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=tzakvt3x2dfo2qndm4hkval24f4espgp3lziq5pkucyw26td5ofq._file

Verdict:

malicious

Label(s):

QuasarRAT

Link:

https://reports.threatray.com/edfe8032-c4a7-4994-9265-4386668d6a70

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:office013 discovery spyware trojan

Link:

https://tria.ge/reports/261021-werk1swv9k/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of SetWindowsHookEx

Reads the TCP/IP host and domain name from the registry

Family: Quasar RAT

Quasar payload

Malware Config

C2 Extraction:

patri00-42082.portmap.host:42082

Unpacked files

SH256 hash:

9e40aacf77d0caed41a3670eaa817ae178493ccfdaf28875eaa0b16d7a63eb8b

MD5 hash:

12424064e68c62ea927e16acc4ec5e8f

SHA1 hash:

e4729cfea11996f63ce99a70658ece7d40017d2c

Detections:

QuasarRAT

cn_utf8_windows_terminal

INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

INDICATOR_SUSPICIOUS_GENInfoStealer

MAL_QuasarRAT_May19_1

malware_windows_xrat_quasarrat

MALWARE_Win_QuasarStealer

win_quasar_rat_client

win_quasarrat_j2

Link:

https://www.unpac.me/results/773ace74-19eb-4da1-b407-c96c7a1ff6ae/

Malware family:

QuasarRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/9e40aacf77d0/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/9e40aacf77d0caed41a3670eaa817ae178493ccfdaf28875eaa0b16d7a63eb8b

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:	CP_Script_Inject_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	Detect_PowerShell_Obfuscation Create hunting rule
Author:	daniyyell
Description:	Detects obfuscated PowerShell commands commonly used in malicious scripts.

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 artifacts observed in infostealers

Rule name:	Lumma_Stealer_Detection Create hunting rule
Author:	ashizZz
Description:	Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:	https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/

Rule name:	MALWARE_Win_QuasarStealer Create hunting rule
Author:	ditekshen
Description:	Detects Quasar infostealer

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 Create hunting rule
Description:	Detects QuasarRAT malware

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:	Multifamily_RAT_Detection Create hunting rule
Author:	Lucas Acha (https://www.lukeacha.com)
Description:	Generic detection for multiple RAT families, PUPs, packers and suspicious executables. NOTE: This rule may produce false positives. Updated May 2026 to reduce False Positives.

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	pe_imphash Create hunting rule

Rule name:	quasarrat Create hunting rule
Author:	jeFF0Falltrades

Rule name:	quasarrat_kingrat Create hunting rule
Author:	jeFF0Falltrades

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

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

Rule name:	Sus_CMD_Powershell_Usage Create hunting rule
Author:	XiAnzheng
Description:	May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

Rule name:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

Rule name:	WIN_Malware_Unknown_ForgeAuto_6717780a_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat extrait)

Rule name:	WIN_Malware_XWorm_ForgeAuto_6b06c990_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects XWorm (pe, etat extrait)

Rule name:	win_quasar_rat_client Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects strings present in Quasar Rat Samples.

File information

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

Cape

https://www.capesandbox.com/analysis/93683/

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