MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 102b0010ff82572936b26dda6f3f9c13d61386f653c1759036b3d5258ad086ec. 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 17 File information Comments 1

SHA256 hash:	102b0010ff82572936b26dda6f3f9c13d61386f653c1759036b3d5258ad086ec
SHA3-384 hash:	0018253d5a47191c2fc5c8c2dc6c9bd0a85b0b23e950136ea8d0c639a682d38e8aac2e74899c9738d60a2711c2ddd772
SHA1 hash:	c8b29f38ac1a121ef79b4eebd120ff76185eb04a
MD5 hash:	e835e628e0f8377badfed5cb7fc3e6b3
humanhash:	cola-vermont-seven-finch
File name:	wyverncrack.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	646'656 bytes
First seen:	2026-03-17 06:32:14 UTC
Last seen:	2026-03-17 07:33:20 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'843 x AgentTesla, 19'774 x Formbook, 12'297 x SnakeKeylogger)
ssdeep	12288:EPRb90ASjkqjVnl36ud0zR/6CtQ9PUHIG8Dl8gSD+37PWY1Y1+f7LfNT2X3Yp/66:EJ9QjkqjVnlqud+/2P+AlUDcPt1aKFKs
Threatray	17 similar samples on MalwareBazaar
TLSH	T1CED4022037FD8147E1BF6AB999F122006675F663A523EB4C1C4462BD4533781E9D23BA
TrID	70.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 6.2% (.EXE) Win64 Executable (generic) (6522/11/2) 4.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
Reporter	abuse_ch
Tags:	exe QuasarRAT RAT

Intelligence

File Origin

# of uploads :

# of downloads :

188

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/dbfecd25-13dd-4ea1-b207-8b907eb742a1/

Malware family:

quasar

ID:

File name:

wyverncrack.exe

Verdict:

Malicious activity

Analysis date:

2026-03-16 21:19:02 UTC

Tags:

auto-reg quasar

Link:

https://app.any.run/tasks/e75b00f7-e02c-4baf-b161-e7cbd8c21079

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/57704/

Detection(s):

SecuriteInfo.com.BackDoor.QuasarNET.3.17940.4746.UNOFFICIAL

Verdict:

Malicious

Score:

94.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69b873c593b644ca466ac26f

Tags:

autorun quasar

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Creating a file in the %AppData% subdirectories

Launching a process

Creating a process from a recently created file

Creating a file

Connecting to a non-recommended domain

Connection attempt

Setting a keyboard event handler

Unauthorized injection to a recently created process

Enabling autorun by creating a file

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm base64 downeks fingerprint keylogger lolbin obfuscated obfuscated packed quasar quasarrat reconnaissance runonce schtasks stack_pickle unsafe vermin

Link:

https://www.filescan.io/uploads/69b8f5ab4678eefbc7ad3006/reports/7140eb4f-47e2-44cf-b258-5b0c572c9762/overview

Verdict:

Malicious

Labled as:

IL:Trojan.MSILZilla

Link:

https://www.hybrid-analysis.com/sample/102b0010ff82572936b26dda6f3f9c13d61386f653c1759036b3d5258ad086ec

Verdict:

Malicious

File Type:

exe x32

Detections:

Trojan.Win32.Agent.sb Trojan.MSIL.Quasar.a HEUR:Trojan.MSIL.Quasar.gen PDM:Trojan.Win32.Tasker.cust PDM:Trojan.Win32.Generic Trojan.Win32.Quasar.sb

Link:

https://opentip.kaspersky.com/102b0010ff82572936b26dda6f3f9c13d61386f653c1759036b3d5258ad086ec/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/15dd5216-378f-4080-8771-37d983049c2d

Gathering data

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/102b0010ff82572936b26dda6f3f9c13d61386f653c1759036b3d5258ad086ec

Verdict:

QuasarRat

YARA:

14 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: OwpPV7Y0WqqPSV87777ht9PZAthP3X/HhUhWM+354tGj3NxMJVuMA3Ce8x7wZz3IWPgzmLUxIXhOInGA7CJG5SnO7t/iNxOJfb/FbIlAS8k=
CNC: OwpPV7Y0WqqPSV87777ht9PZAthP3X/HhUhWM+354tGj3NxMJVuMA3Ce8x7wZz3IWPgzmLUxIXhOInGA7CJG5SnO7t/iNxOJfb/FbIlAS8k=

Link:

https://app.malva.re/file/e835e628e0f8377badfed5cb7fc3e6b3

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/102b0010ff82572936b26dda6f3f9c13d61386f653c1759036b3d5258ad086ec/

Verdict:

Malicious

Threat:

Family.QUASARRAT

Link:

https://tip.neiki.dev/file/102b0010ff82572936b26dda6f3f9c13d61386f653c1759036b3d5258ad086ec

Threat name:

ByteCode-MSIL.Backdoor.Quasar

Status:

Malicious

First seen:

2026-03-16 21:19:26 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 24 (79.17%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=cavqaeh7qjlssnvsnxng6p44cplbhbxwkpaxlebwwpkslcwqq3wa._file

Verdict:

malicious

Label(s):

quasarrat

QuasarRAT

32855d78f2bb5b72b9ea1a9284a04e52bdd3778fcf4e23eb6229356b9f158c10

QuasarRAT

940773be1f5061eb206c7bbf3030765aac7b973f5a9915c62ba893a2d97b28f2

QuasarRAT

a342889b6129444756d089aacbd647b1fcb0273ed5894885e1641038a001a2d7

QuasarRAT

d71ebb253d47b4f626d03dafa65099191ab6d939c6c10be87b2ff9fdc73f867f

QuasarRAT

+ 7 additional samples on MalwareBazaar

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar execution persistence spyware trojan

Link:

https://tria.ge/reports/260317-hbaw7sfy2y/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Executes dropped EXE

Quasar RAT

Quasar family

Quasar payload

Malware Config

C2 Extraction:

�1��"kӤX.�s�:

Unpacked files

SH256 hash:

102b0010ff82572936b26dda6f3f9c13d61386f653c1759036b3d5258ad086ec

MD5 hash:

e835e628e0f8377badfed5cb7fc3e6b3

SHA1 hash:

c8b29f38ac1a121ef79b4eebd120ff76185eb04a

Link:

https://www.unpac.me/results/5b22704a-30f4-43e6-8927-642cec2e639b/

SH256 hash:

cfeec75a0aad3efbd553d9d1f67b71b3de7ec9788629d73ce696bdaadd26554c

MD5 hash:

a636c6244c3193bb4cd596606e4937ad

SHA1 hash:

785c9bd21aefde156d5dc744c0aa577315fea5bf

Detections:

SUSP_NET_Large_Static_Array_In_Small_File_Jan24

Link:

https://www.unpac.me/results/5b22704a-30f4-43e6-8927-642cec2e639b/

Parent samples :

a342889b6129444756d089aacbd647b1fcb0273ed5894885e1641038a001a2d7
b9b51e29d004739a401a3628bd5b48cccb9bfa5bbc67dbacd3be197a5be32285
940773be1f5061eb206c7bbf3030765aac7b973f5a9915c62ba893a2d97b28f2
d71ebb253d47b4f626d03dafa65099191ab6d939c6c10be87b2ff9fdc73f867f
102b0010ff82572936b26dda6f3f9c13d61386f653c1759036b3d5258ad086ec

Malware family:

QuasarRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/102b0010ff82/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/102b0010ff82572936b26dda6f3f9c13d61386f653c1759036b3d5258ad086ec

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:	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:	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/57704/

Comments

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commented on 2026-03-17 06:36:34 UTC

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

{
"sha256": "102b0010ff82572936b26dda6f3f9c13d61386f653c1759036b3d5258ad086ec",
"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
}
}