MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 288d31c7d357a129cf21143a30062144d41c899f44c0515b815caf31c4be14b1. 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: 16

Intelligence 16 IOCs YARA 25 File information Comments

SHA256 hash:	288d31c7d357a129cf21143a30062144d41c899f44c0515b815caf31c4be14b1
SHA3-384 hash:	a952ba588579283b922cb4903110c080b73ea57155f9e5ba2b582c6571e271bb9588978947a2fa2a876812426ecc2ca5
SHA1 hash:	e2c28016de17d1aa1abd785e8a448ef48873b9ae
MD5 hash:	31e46a4b15b6ebb8e31385d97c949480
humanhash:	hotel-moon-friend-nineteen
File name:	288d31c7d357a129cf21143a30062144d41c899f44c0515b815caf31c4be14b1
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	1'914'368 bytes
First seen:	2025-08-14 11:56:20 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep	24576:2j44fHyclOYM5NKij8QzO4lcHNF0tXZWLuyWf25CNV:2j4ASGOGqnXpyW1N
Threatray	109 similar samples on MalwareBazaar
TLSH	T19B950111B3F59206F1FF2BB9A8B216554B77B612993AD70F098C506C0FE7B909D107A3
TrID	62.2% (.RLL) Microsoft Resource Library (x86) (177572/6/26) 25.6% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 3.6% (.EXE) Win64 Executable (generic) (10522/11/4) 2.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 1.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika	pebin
Reporter	Neiki
Tags:	exe Quasar QuasarRAT

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

backdoor.exe

Verdict:

Suspicious activity

Analysis date:

2025-08-14 11:49:40 UTC

Tags:

crypto-regex

Link:

https://app.any.run/tasks/4594c32c-d25e-4bcf-86cc-2e7aeecc3995

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/21338/

Detection(s):

Win.Malware.Generic-9883083-0

Win.Malware.Bulz-9933026-0

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL

Win.Malware.Generic-6623004-0

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=689dcefd48c64d68735c5c3b

Tags:

vmdetect autorun quasar

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Creating a file in the system32 directory

Launching a process

Enabling autorun by creating a file

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-vm anti-vm cmd explorer hacktool lolbin obfuscated obfuscated packed packed packer_detected remote runonce threat update

Link:

https://www.filescan.io/uploads/689dcf096d7bffa0a7a205f0/reports/89511e6d-1b0b-45d6-b3b4-46af12277c68/overview

Verdict:

Malicious

Labled as:

IL:Trojan.MSILZilla

Link:

https://www.hybrid-analysis.com/sample/288d31c7d357a129cf21143a30062144d41c899f44c0515b815caf31c4be14b1

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/707922ad-274d-4d2c-8522-422480dad08e

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/288d31c7d357a129cf21143a30062144d41c899f44c0515b815caf31c4be14b1

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/288d31c7d357a129cf21143a30062144d41c899f44c0515b815caf31c4be14b1/

Verdict:

Malicious

Threat:

HEUR:Trojan.MSIL.Quasar

Link:

https://tip.neiki.dev/file/288d31c7d357a129cf21143a30062144d41c899f44c0515b815caf31c4be14b1

Threat name:

ByteCode-MSIL.Hacktool.Aikaantivm

Status:

Malicious

First seen:

2025-08-14 11:49:41 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

23 of 23 (100.00%)

Threat level:

1/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=fcgtdr6tk6qsttzbcq5dabrbitkbzcm7itafcw4blsxtdrf6csyq._file

Verdict:

malicious

Label(s):

quasarrat

QuasarRAT

3e336ef75dbb6d7168fc2dcbce4a139e3c23ca2be7459b10c0050cad9267a383

QuasarRAT

c30fdd073be8172d6975c53b1c6fa4955a0f20ebaef408228017540ba4d8ad62

QuasarRAT

e00aa14eab3def5c39e2be5d0f787d47caf495b1566f6c52d2771f4c4150f47a

QuasarRAT

error

QuasarRAT

fc53884a4452b6f808e280dc3fc3a051d0129be2aabf61ea816dacf6c3ea9e80

QuasarRAT

+ 99 additional samples on MalwareBazaar

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:office04 execution persistence spyware trojan

Link:

https://tria.ge/reports/250814-n4cjdsvsbv/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: AddClipboardFormatListener

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Drops file in System32 directory

Executes dropped EXE

Quasar RAT

Quasar family

Quasar payload

Malware Config

C2 Extraction:

45.80.158.210:4782

Verdict:

Malicious

Tags:

red_team_tool rat quasar_rat backdoor backnet Win.Malware.Generic-9883083-0

YARA:

HKTL_EXE_AlKhaser_Jul_01 MAL_QuasarRAT_May19_1 malware_windows_quasarrat MAL_BackNet_Nov18_1

Link:

https://app.threat.zone/submission/02385a18-c901-4065-921d-b985e1813c9f

Unpacked files

SH256 hash:

288d31c7d357a129cf21143a30062144d41c899f44c0515b815caf31c4be14b1

MD5 hash:

31e46a4b15b6ebb8e31385d97c949480

SHA1 hash:

e2c28016de17d1aa1abd785e8a448ef48873b9ae

Detections:

QuasarRAT

Link:

https://www.unpac.me/results/b2014ecc-8d9a-44ce-8f79-50ada16a6acb/

Malware family:

QuasarRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/288d31c7d357/report/overview.html

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

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/288d31c7d357a129cf21143a30062144d41c899f44c0515b815caf31c4be14b1

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:	Check_Dlls Create hunting rule

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__QueryInfo Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Thread Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

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:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	INDICATOR_EXE_Packed_Fody Create hunting rule
Author:	ditekSHen
Description:	Detects executables manipulated with Fody

Rule name:	Indicator_MiniDumpWriteDump Create hunting rule
Author:	Obscurity Labs LLC
Description:	Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references

Rule name:	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA Create hunting rule
Author:	ditekSHen
Description:	Detects Windows executables referencing non-Windows User-Agents

Rule name:	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL Create hunting rule
Author:	ditekSHen
Description:	Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

Rule name:	MAL_BackNet_Nov18_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects BackNet samples
Reference:	https://github.com/valsov/BackNet

Rule name:	MAL_BackNet_Nov18_1_RID2D6D Create hunting rule
Author:	Florian Roth
Description:	Detects BackNet samples
Reference:	https://github.com/valsov/BackNet

Rule name:	MAL_QuasarRAT_May19_1 Create hunting rule
Description:	Detects QuasarRAT malware

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:	Multifamily_RAT_Detection Create hunting rule
Author:	Lucas Acha (http://www.lukeacha.com)
Description:	Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables

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:	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:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Link

https://tip.neiki.dev/file/288d31c7d357a129cf21143a30062144d41c899f44c0515b815caf31c4be14b1

Cape

https://www.capesandbox.com/analysis/21338/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (GUARD_CF)	high

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