MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0fdf8b638918ac7a04c36e6ea150548dcd245caa8674601c8a9d5905e77f9bc3. 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: 19

Intelligence 19 IOCs YARA 31 File information Comments 1

SHA256 hash:	0fdf8b638918ac7a04c36e6ea150548dcd245caa8674601c8a9d5905e77f9bc3
SHA3-384 hash:	2928e3165902b7c4dc0ed19305e85b2fd9a525b88865541425122516657390f0601f2cff7279bd9193edd5ce384e60b3
SHA1 hash:	7232d18772529973ece8cb06c7e7ba0a9dd540fd
MD5 hash:	47bec036fe26fe8d70dac48627ce1de3
humanhash:	magazine-violet-monkey-minnesota
File name:	0fdf8b638918ac7a04c36e6ea150548dcd245caa8674601c8a9d5905e77f9bc3.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	3'266'048 bytes
First seen:	2026-10-11 09:12:19 UTC
Last seen:	Never
File type:	exe
MIME type:	application/vnd.microsoft.portable-executable
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'249 x AgentTesla, 20'546 x Formbook, 12'385 x SnakeKeylogger)
ssdeep	49152:HvyI22SsaNYfdPBldt698dBcjHdDg3zarDLoGdoTHHB72eh2NT:Hvf22SsaNYfdPBldt6+dBcjHq3I
TLSH	T1B1E54A1037F85E23E1ABE37395B0041767F1FC2AB3A3EB0B6191677A5C53B504942AA7
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
Reporter	whack_sh
Tags:	exe QuasarRAT

Intelligence

File Origin

# of uploads :

# of downloads :

209

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

QuasarRAT

Details

Link:

https://research.acce.ciphertechsolutions.com/results/643259fc-74ce-4d57-82b5-a96fb03fb2fb/

Malware family:

quasar

ID:

File name:

exe

Verdict:

Malicious activity

Analysis date:

2026-10-11 09:19:33 UTC

Tags:

auto-reg quasar

Link:

https://app.any.run/tasks/d513835c-a8b0-40cc-9d96-829f454e4036

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/91405/

Detection(s):

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL

Win.Malware.Generic-9883083-0

Win.Malware.Msilheracles-9900242-0

Win.Packed.Downeks-6898097-0

YARA.DITEKSHEN_MALWARE_Win_Quasarstealer.UNOFFICIAL

YARA.SIGNATURE_BASE_MAL_Quasarrat_May19_1.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Creating a file in the %AppData% subdirectories

Launching a process

Enabling the 'hidden' option for recently created files

Creating a process from a recently created file

Creating a file

DNS request

Setting a keyboard event handler

Connection attempt

Sending a custom TCP request

Launching a service

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Unauthorized injection to a recently created process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

active-directory anti-vm base64 certreq config-extracted crypto expand explorer fingerprint infostealer lolbin obfuscated obfuscated quasarrat quasarrat reconnaissance remoteaccesstool runonce schtasks stealer

Link:

https://www.filescan.io/uploads/6acb5326b14f86d42b7a1529/reports/7b429440-8c05-402e-a3a3-18a428dd99cb/overview

Verdict:

Malicious

Labled as:

Trojan.Agent

Link:

https://www.hybrid-analysis.com/sample/0fdf8b638918ac7a04c36e6ea150548dcd245caa8674601c8a9d5905e77f9bc3

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-10-11T06:08:00Z UTC

Last seen:

2026-10-12T03:17:00Z UTC

Hits:

~10

Detections:

Trojan.Win32.Agent.sb Trojan.MSIL.Quasar.a Trojan-PSW.Win32.Stealer.sb Trojan-PSW.MSIL.Agent.sb HEUR:Trojan.MSIL.Quasar.gen HEUR:Trojan-Spy.MSIL.Agent.sb Trojan.Win32.Quasar.sb

Link:

https://opentip.kaspersky.com/0fdf8b638918ac7a04c36e6ea150548dcd245caa8674601c8a9d5905e77f9bc3/results?tab=lookup

Malware family:

Quasar RAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/042ead1b-3e57-475b-ad83-e0f676f98d35

Result

Threat name:

Quasar

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1985450

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Antivirus detection for URL or domain

Creates autostart registry keys with suspicious names

Drops PE files with benign system names

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 dropped file

Multi AV Scanner detection for submitted file

Potential Privilege Escalation using Task Scheduler highest RunLevel

Sample uses string decryption to hide its real strings

Sigma detected: Files With System Process Name In Unsuspected Locations

Sigma detected: Schedule system process

Sigma detected: System File Execution Location Anomaly

System process connects to network (likely due to code injection or exploit)

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected Quasar RAT

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/0fdf8b638918ac7a04c36e6ea150548dcd245caa8674601c8a9d5905e77f9bc3

Verdict:

inconclusive

YARA:

13 match(es)

Tags:

.Net Executable Managed .NET PE (Portable Executable) PE File Layout Win 32 Exe x86

Link:

https://app.malva.re/file/47bec036fe26fe8d70dac48627ce1de3

Detection:

quasar

Link:

https://mwdb.cert.pl/sample/0fdf8b638918ac7a04c36e6ea150548dcd245caa8674601c8a9d5905e77f9bc3/

Threat name:

ByteCode-MSIL.Backdoor.Quasar

Status:

Malicious

First seen:

2026-10-11 09:13:24 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=b7pywy4jdcwhubgdnzxkcucurxgsixfkqz2gahektvmqlz37tpbq._file

Verdict:

malicious

Label(s):

QuasarRAT

Link:

https://reports.threatray.com/407d5926-cc3c-4e86-b150-04372840b2a1

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:ajaib123.vip defense_evasion discovery execution persistence spyware trojan

Link:

https://tria.ge/reports/261011-k6tc5s1z6m/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

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

Adds Run key to start application

Executes a file named after a Windows system binary

Executes dropped EXE

Family: Quasar RAT

Quasar payload

Malware Config

C2 Extraction:

ajaib123.vip:443

Unpacked files

SH256 hash:

0fdf8b638918ac7a04c36e6ea150548dcd245caa8674601c8a9d5905e77f9bc3

MD5 hash:

47bec036fe26fe8d70dac48627ce1de3

SHA1 hash:

7232d18772529973ece8cb06c7e7ba0a9dd540fd

Detections:

QuasarRAT

cn_utf8_windows_terminal

INDICATOR_SUSPICIOUS_Binary_References_Browsers

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/76578426-0abd-43c2-9509-cdf354ec127b/

Malware family:

QuasarRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/0fdf8b638918/report/overview.html

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

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:	BLOWFISH_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for Blowfish constants

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:	FreddyBearDropper Create hunting rule
Author:	Dwarozh Hoshiar
Description:	Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

Rule name:	INDICATOR_SUSPICIOUS_Binary_References_Browsers Create hunting rule
Author:	ditekSHen
Description:	Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

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:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

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:	RC6_Constants Create hunting rule
Author:	chort (@chort0)
Description:	Look for RC6 magic constants in binary
Reference:	https://twitter.com/mikko/status/417620511397400576

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

Rule name:	SHA1_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA1 constants

Rule name:	SHA512_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA384/SHA512 constants

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:	Windows_Generic_Threat_803feff4 Create hunting rule
Author:	Elastic Security

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.

Web download

QuasarRAT

exe 0fdf8b638918ac7a04c36e6ea150548dcd245caa8674601c8a9d5905e77f9bc3

(this sample)

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/91405/

Comments

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commented on 2026-10-11 09:15:58 UTC

RAT King Parser (https://github.com/jeFF0Falltrades/rat_king_parser) Output:

{
"sha256": "0fdf8b638918ac7a04c36e6ea150548dcd245caa8674601c8a9d5905e77f9bc3",
"yara_possible_family": "quasarrat",
"key": "84bc9beba07f9f2bdaa339ce9a5bf22efff8edbbbdadfa2113b2c2ca038f430c",
"salt": "bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941",
"config": {
"obfuscated_key_1": "1.4.1",
"obfuscated_key_2": "ajaib123.vip:443;",
"obfuscated_key_3": 3000,
"obfuscated_key_4": "APPLICATIONDATA",
"obfuscated_key_5": "SubDir",
"obfuscated_key_6": "svchost.exe",
"obfuscated_key_7": true,
"obfuscated_key_8": true,
"obfuscated_key_9": "eb5e05a5-27fb-4e3d-a84e-332dd9dd6dcb",
"obfuscated_key_10": "https://ajaib123.vip",
"obfuscated_key_11": true,
"obfuscated_key_12": true,
"obfuscated_key_13": "064A791F72F1A9EEE6944D54C0499DCF8FED6648",
"obfuscated_key_14": "ajaib123.vip",
"obfuscated_key_15": "Logs",
"obfuscated_key_16": "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",
"obfuscated_key_17": "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",
"obfuscated_key_18": true,
"obfuscated_key_19": true,
"obfuscated_key_20": "",
"obfuscated_key_21": "",
"obfuscated_key_22": true
}
}