MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4efe314b3ef2de0406754664e6fe12a3bd9c25965fcff10a76ca39dc4050212e. 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: 18

Intelligence 18 IOCs YARA 27 File information Comments

SHA256 hash:	4efe314b3ef2de0406754664e6fe12a3bd9c25965fcff10a76ca39dc4050212e
SHA3-384 hash:	ec8a84ec35f1bb68086c63796cbd2df8276cb5d8948e2609f4f4c91daf3b438024812d0773a8c0a6aced55ab532a2f19
SHA1 hash:	e7ba18d9531ccf39fde74eb19e78d49e504ccde4
MD5 hash:	3dc6cb0ab3cc03b3ea6077c46dd77223
humanhash:	tennis-wisconsin-wolfram-fish
File name:	file
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	889'344 bytes
First seen:	2025-11-08 21:03:55 UTC
Last seen:	2025-11-08 21:04:31 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep	12288:yMen0tWfOzAXvQyg7oZisqtksOtgg+WLyDrQ9/7WxdtbiLNg1O+zPzFdw7jETdsX:jDtWfOa4yclOoWLuyWfaN+OWu7jyo
TLSH	T1FA15BF5473E54207E1FF5BBAA4B309440B77B852D936D75F198CA1AD0EA3B80CE603A7
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	Bitsight
Tags:	dropped-by-amadey exe fbf543 QuasarRAT

Bitsight

url: http://178.16.54.200/files/6350135267/j3bH2hv.exe

Intelligence

File Origin

# of uploads :

# of downloads :

119

Origin country :

Vendor Threat Intelligence

Malware family:

redline

ID:

File name:

http://178.16.54.200:80/testmine/random.exe

Verdict:

Malicious activity

Analysis date:

2025-11-08 21:04:04 UTC

Tags:

auto redline stealer amadey botnet loader rdp stealc vidar autoit upx xor-url generic neoreklami adware purelogs lumma evasion miner winring0-sys vuln-driver inno installer delphi rhadamanthys

Link:

https://app.any.run/tasks/bbe6a4c7-01c6-4887-9324-ada9399fb007

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/36586/

Detection(s):

Win.Malware.Generic-9883083-0

Win.Malware.Bulz-9933026-0

Win.Malware.Generic-6623004-0

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=690fb04f30bacec888ca002e

Tags:

vmdetect quasar emotet

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Connection attempt

DNS request

Sending a custom TCP request

Using the Windows Management Instrumentation requests

Creating a file in the %AppData% subdirectories

Setting a keyboard event handler

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-debug anti-vm anti-vm base64 cmd cscript evasive explorer fingerprint hacktool lolbin msbuild mshta obfuscated packed privilege quasarrat reconnaissance regasm regsvcs runonce schtasks stack_pickle update

Link:

https://www.filescan.io/uploads/690fb04d2b74ec26eb6be2e4/reports/4f3772c9-4f7d-4e9c-a9be-e2e49ac8e954/overview

Verdict:

Malicious

Labled as:

HackTool[VirTool]/MSIL.Aikaantivm

Link:

https://www.hybrid-analysis.com/sample/4efe314b3ef2de0406754664e6fe12a3bd9c25965fcff10a76ca39dc4050212e

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-11-08T18:10:00Z UTC

Last seen:

2025-11-10T10:18:00Z UTC

Hits:

~100

Detections:

Trojan-PSW.MSIL.Agent.sb Trojan.MSIL.Agent.sb Trojan-Downloader.Agent.HTTP.C&C Trojan.MSIL.Quasar.fio Trojan.MSIL.Quasar.a HEUR:Trojan-Banker.MSIL.ClipBanker.gen HEUR:Trojan.Win32.Generic NetTool.PowerShellGet.HTTP.C&C NetTool.PowerShellUA.HTTP.C&C NetTool.PowerShellPost.HTTP.C&C

Link:

https://opentip.kaspersky.com/4efe314b3ef2de0406754664e6fe12a3bd9c25965fcff10a76ca39dc4050212e/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/e5682471-34e5-42e7-b381-e439c62e2822

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/4efe314b3ef2de0406754664e6fe12a3bd9c25965fcff10a76ca39dc4050212e

Verdict:

QuasarRat

YARA:

16 match(es)

Tags:

.Net Executable Fody/Costura Packer Html Malicious Managed .NET PDB Path PE (Portable Executable) PE File Layout QuasarRat RAT SOS: 0.14 SOS: 0.15 SOS: 0.17 SOS: 0.18 SOS: 0.23 SOS: 0.24 SOS: 0.25 SOS: 0.26 SOS: 0.63 Win 32 Exe x86

Link:

https://app.malva.re/file/3dc6cb0ab3cc03b3ea6077c46dd77223

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4efe314b3ef2de0406754664e6fe12a3bd9c25965fcff10a76ca39dc4050212e/

Verdict:

Malicious

Threat:

Family.QUASAR

Link:

https://tip.neiki.dev/file/4efe314b3ef2de0406754664e6fe12a3bd9c25965fcff10a76ca39dc4050212e

Threat name:

Win32.Hacktool.Aikaantivm

Status:

Malicious

First seen:

2025-11-08 21:04:17 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

23 of 24 (95.83%)

Threat level:

1/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=j37dcsz66lpaibtvizson7qsuo6zyjmwl7h7cctwzi45yqcqeexa._file

Verdict:

malicious

Label(s):

quasarrat

Similar samples:

error

QuasarRAT

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar spyware trojan

Link:

https://tria.ge/reports/251108-zwn31awkal/

Behaviour

Suspicious behavior: AddClipboardFormatListener

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Quasar RAT

Quasar family

Quasar payload

Verdict:

Malicious

Tags:

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

YARA:

HKTL_EXE_AlKhaser_Jul_01 MAL_QuasarRAT_May19_1 malware_windows_quasarrat MAL_BackNet_Nov18_1

Link:

https://app.threat.zone/submission/cf7c1ac3-9ade-4a57-999c-18cc8fa6822b

Unpacked files

SH256 hash:

4efe314b3ef2de0406754664e6fe12a3bd9c25965fcff10a76ca39dc4050212e

MD5 hash:

3dc6cb0ab3cc03b3ea6077c46dd77223

SHA1 hash:

e7ba18d9531ccf39fde74eb19e78d49e504ccde4

Detections:

QuasarRAT

Link:

https://www.unpac.me/results/9901a0bb-5801-45bc-8714-324d1ee78eed/

Malware family:

QuasarRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/4efe314b3ef2/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:	Check_Dlls Create hunting rule

Rule name:	Check_VBox_Guest_Additions Create hunting rule

Rule name:	Check_VmTools Create hunting rule

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:	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:	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)