MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8852ef713bc0078d9ae391ceb5b2d5b4901dd63ab2a74a5155f9d0416a033718. 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 16 File information Comments 1

SHA256 hash:	8852ef713bc0078d9ae391ceb5b2d5b4901dd63ab2a74a5155f9d0416a033718
SHA3-384 hash:	91261e04ea61bb08cb826e44d626513b0588228716b8e05a99dd448a9dd402f21222fee349782ff4a1ce333c744c0b3a
SHA1 hash:	a6462ce88681f52088006a50f8155ca592f8425f
MD5 hash:	6332505db61f12a4b71f5beed8ff2898
humanhash:	double-equal-kansas-lithium
File name:	nexorium panel.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	651'264 bytes
First seen:	2026-02-13 14:49:10 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'829 x AgentTesla, 19'759 x Formbook, 12'295 x SnakeKeylogger)
ssdeep	12288:+y4BUsmPCYSr+fkqjVnl36ud0zR/6CtQ9PUHIG8Dl8gSD+37PWY1Y1+BqHFvqR:54QgikqjVnlqud+/2P+AlUDcPt1avd
TLSH	T154D4022037FC850BE2BFABBC9DB166115679F663E622DB4D098462DD0473381CD8237A
TrID	67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10522/11/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
Reporter	burger
Tags:	exe QuasarRAT

Intelligence

File Origin

# of uploads :

# of downloads :

130

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

QuasarRAT

Details

QuasarRAT

c2 socket addresses, a version, a mutex, AES-CBC decryption parameters, a missionid, an interval, varying flags, a filepath, an installation registry path and scheduled task name, and possibly additional parameters which vary per version

Link:

https://research.acce.ciphertechsolutions.com/results/534a6fc4-f496-4c9e-84a0-b1021fdadab3/

Malware family:

quasar

ID:

File name:

nexoriumpanel.exe

Verdict:

Malicious activity

Analysis date:

2026-02-13 14:48:59 UTC

Tags:

quasar

Link:

https://app.any.run/tasks/80fb91bb-1465-49ea-ba69-3b3f78956911

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/53274/

Verdict:

Malicious

Score:

81.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=698f39da76589225f66660a7

Tags:

dropper quasar packed remo

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/8852ef713bc0078d9ae391ceb5b2d5b4901dd63ab2a74a5155f9d0416a033718

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-02-13T11:51:00Z UTC

Last seen:

2026-02-13T12:30:00Z UTC

Hits:

~10

Detections:

PDM:Trojan.Win32.Generic Trojan.Win32.Quasar.sb Trojan.MSIL.Quasar.a Trojan.MSIL.Donut.sb HEUR:Trojan.MSIL.Quasar.gen

Link:

https://opentip.kaspersky.com/8852ef713bc0078d9ae391ceb5b2d5b4901dd63ab2a74a5155f9d0416a033718/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/528194f4-4242-4a26-bf3c-82978f366a90

Result

Threat name:

Quasar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1869160

Signature

.NET source code contains potential unpacker

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Contains functionality to capture screen (.Net source)

Drops executables to the windows directory (C:\Windows) and starts them

Found malware configuration

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

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Sample uses string decryption to hide its real strings

Yara detected Costura Assembly Loader

Yara detected Quasar RAT

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/8852ef713bc0078d9ae391ceb5b2d5b4901dd63ab2a74a5155f9d0416a033718

Verdict:

QuasarRat

YARA:

10 match(es)

Tags:

.Net Executable Fody/Costura Packer Malicious Managed .NET PDB Path PE (Portable Executable) PE File Layout QuasarRat RAT SOS: 0.00 SOS: 0.16 SOS: 0.21 SOS: 0.23 SOS: 0.31 SOS: 0.38 SOS: 0.73 Win 32 Exe x86

Malware Config

C2 Extraction:

PORT: AqXEjZSS401MWy/g7JbdumT9T3fIGOy4/it9agqdYeMvPSXIVg3N+BL9lnN1toTKdvBnI0CLUZ0Y1syANGjwOYBuhtdpfSDN/SAw01JN8W2E7yZB88tSWQBJ4IPRWZxz
CNC: AqXEjZSS401MWy/g7JbdumT9T3fIGOy4/it9agqdYeMvPSXIVg3N+BL9lnN1toTKdvBnI0CLUZ0Y1syANGjwOYBuhtdpfSDN/SAw01JN8W2E7yZB88tSWQBJ4IPRWZxz

Link:

https://app.malva.re/file/6332505db61f12a4b71f5beed8ff2898

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/8852ef713bc0078d9ae391ceb5b2d5b4901dd63ab2a74a5155f9d0416a033718/

Verdict:

Malicious

Threat:

Family.QUASARRAT

Link:

https://tip.neiki.dev/file/8852ef713bc0078d9ae391ceb5b2d5b4901dd63ab2a74a5155f9d0416a033718

Threat name:

Win32.Backdoor.Quasar

Status:

Malicious

First seen:

2026-02-13 14:49:02 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

16 of 24 (66.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=rbjo64j3yady3gxdshhllmwvwsib3vr2wktuuukv7hiec2qdg4ma._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/260213-r66f2aes8b/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Drops file in System32 directory

Executes dropped EXE

Quasar RAT

Quasar family

Quasar payload

Malware Config

C2 Extraction:

$��OY3m��"�#C]I�u�5��AY�m�T��4B� k�&�>�Y��w

Unpacked files

SH256 hash:

8852ef713bc0078d9ae391ceb5b2d5b4901dd63ab2a74a5155f9d0416a033718

MD5 hash:

6332505db61f12a4b71f5beed8ff2898

SHA1 hash:

a6462ce88681f52088006a50f8155ca592f8425f

Link:

https://www.unpac.me/results/266a536a-f881-4928-9a1a-fb13b782bab0/

SH256 hash:

0639b938081e403edc4417d09c473bfbaee09e037f00a81c8caf510c732cb81c

MD5 hash:

1e621b3b8312de906082d6cd695b701d

SHA1 hash:

2e1310441cf9b7e3ac4f3b14f5ac39afada7a4f5

Detections:

SUSP_NET_Large_Static_Array_In_Small_File_Jan24

Link:

https://www.unpac.me/results/266a536a-f881-4928-9a1a-fb13b782bab0/

SH256 hash:

5748b74c74643ca9365f451fee09442c37cbc4ca742077b18b7016567a5a321b

MD5 hash:

ffba650b81084cd4485eb1459a93fd64

SHA1 hash:

1ec48749feb5c8cb4e2b648cf17ee8a163ffe94a

Link:

https://www.unpac.me/results/266a536a-f881-4928-9a1a-fb13b782bab0/

Malware family:

QuasarRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/8852ef713bc0/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/8852ef713bc0078d9ae391ceb5b2d5b4901dd63ab2a74a5155f9d0416a033718

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:	Costura_Protobuf Create hunting rule
Author:	@bartblaze
Description:	Identifies Costura and Protobuf in .NET assemblies, respectively for storing resources and (de)serialization. Seen together might indicate a suspect binary.

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

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

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

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
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 (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:	quasarrat Create hunting rule
Author:	jeFF0Falltrades

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:	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/

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/53274/

Comments

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commented on 2026-02-13 14:51:08 UTC

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

{
"sha256": "8852ef713bc0078d9ae391ceb5b2d5b4901dd63ab2a74a5155f9d0416a033718",
"yara_possible_family": "No match",
"key": "None",
"salt": "None",
"config": {
"obfuscated_key_1": "null",
"obfuscated_key_2": "null",
"obfuscated_key_3": false,
"obfuscated_key_4": "COMMONAPPLICATIONDATA",
"obfuscated_key_5": true
}
}