MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99ad8a05662a178655ad915b6c94984303d16aa9499d65a80d7b26bc2d294a7f. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99ad8a05662a178655ad915b6c94984303d16aa9499d65a80d7b26bc2d294a7f
SHA3-384 hash: 38d8d860e672848362d385f9ba3d59f7bcdd9382abd6d9db74da4b6ec1c79c8ee6e817954b4eeab61538bf111428b992
SHA1 hash: 837be31604e5d639eabf853103fc0ac6158ce8df
MD5 hash: eba09a554fe5f6d31933e9dbcb2b4d79
humanhash: iowa-bakerloo-arizona-texas
File name:Strinova - Purple.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:50'688 bytes
First seen:2025-10-17 18:26:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 768:DmQZqx1lYcTYbFiAnSufUY4RaucPiXbYC1dkuju3UG5Q3iEy59I7Kjxp1k:D0lY4eBfUlRtb0uK9XEy54mp1k
TLSH T17B335C85D648C19ADABE4E7D64730D510673AF666202EBDE1C8875FF68A33134232B4B
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter burger
Tags:exe Loader QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
103
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Strinova - Purple.exe
Verdict:
Malicious activity
Analysis date:
2025-10-17 18:20:02 UTC
Tags:
autohotkey loader susp-powershell
Link:
https://app.any.run/tasks/2d1476e7-d9d9-4a6b-a219-8c507090277e

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/33240/
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68f28a5a0cffb3244298f742
Tags:
autorun quasar autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Connection attempt
Creating a file
Sending a custom TCP request
Forced system process termination
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed packed ps2exe
Link:
https://www.filescan.io/uploads/68f28a8a64833d0cfabedaa4/reports/9d252c94-dab2-4843-8daa-156673fc45dc/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/99ad8a05662a178655ad915b6c94984303d16aa9499d65a80d7b26bc2d294a7f
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-17T15:33:00Z UTC
Last seen:
2025-10-19T16:28:00Z UTC
Hits:
~100
Detections:
HEUR:Trojan-Dropper.Win32.Agent.gen HEUR:Trojan.Win32.Generic Trojan-Downloader.Win32.Agent.xydkqh PDM:Trojan.Win32.Generic Trojan-Downloader.Win32.Agent Trojan.Win32.Agent.sb VHO:Trojan.MSIL.DOTHETUK.gen VHO:Trojan.MSIL.Convagent.gen Trojan-Downloader.Win32.Agent.xydkot VHO:Backdoor.MSIL.Crysan.gen Trojan-Downloader.Agent.HTTP.C&C NetTool.PowerShellUA.HTTP.C&C NetTool.PowerShellGet.HTTP.C&C
Link:
https://opentip.kaspersky.com/99ad8a05662a178655ad915b6c94984303d16aa9499d65a80d7b26bc2d294a7f/results?tab=lookup
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ad5654df-3534-47f3-929d-e7712c4cf9eb
Result
Threat name:
AsyncRAT, Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1797349
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to detect sleep reduction / modifications
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
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Reads the Security eventlog
Reads the System eventlog
Sample or dropped binary is a compiled AutoHotkey binary
Sample uses string decryption to hide its real strings
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Schedule system process
Sigma detected: Suspicious Scheduled Task Creation Involving Temp Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1797349 Sample: Strinova - Purple.exe Startdate: 17/10/2025 Architecture: WINDOWS Score: 100 62 vaxlet.duckdns.org 2->62 68 Found malware configuration 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 Antivirus detection for URL or domain 2->72 76 13 other signatures 2->76 11 Strinova - Purple.exe 1 21 2->11         started        15 powershell.exe 2->15         started        17 fontdrvhost.exe 2->17         started        signatures3 74 Uses dynamic DNS services 62->74 process4 file5 60 C:\Users\user\...\Strinova - Purple.exe.log, CSV 11->60 dropped 92 Reads the Security eventlog 11->92 94 Reads the System eventlog 11->94 19 Fivems.exe 3 11->19         started        23 powershell.exe 14 16 11->23         started        26 conhost.exe 15->26         started        signatures6 process7 dnsIp8 52 C:\Users\user\AppData\Local\Temp\archer.exe, PE32 19->52 dropped 54 C:\Users\user\...\Strinova - Purple.exe, PE32+ 19->54 dropped 78 Antivirus detection for dropped file 19->78 80 Multi AV Scanner detection for dropped file 19->80 28 archer.exe 38 19->28         started        31 Strinova - Purple.exe 19->31         started        66 45.43.143.212, 49690, 49693, 80 CLOUD-SOUTHUS United States 23->66 56 C:\Users\user\AppData\Local\Temp\Fivems.exe, PE32 23->56 dropped 82 Powershell drops PE file 23->82 33 conhost.exe 23->33         started        file9 signatures10 process11 signatures12 96 Multi AV Scanner detection for dropped file 28->96 98 Loading BitLocker PowerShell Module 28->98 100 Reads the Security eventlog 28->100 102 Reads the System eventlog 28->102 35 fontdrvhost.exe 28->35         started        39 powershell.exe 28->39         started        42 WmiPrvSE.exe 28->42         started        44 4 other processes 28->44 104 Installs a global keyboard hook 31->104 106 Sample or dropped binary is a compiled AutoHotkey binary 31->106 process13 dnsIp14 64 vaxlet.duckdns.org 31.223.81.157, 1337 ASTURKNETTR Turkey 35->64 84 Antivirus detection for dropped file 35->84 86 Multi AV Scanner detection for dropped file 35->86 88 Uses schtasks.exe or at.exe to add and modify task schedules 35->88 90 2 other signatures 35->90 46 schtasks.exe 35->46         started        58 C:\Users\user\AppData\...\fontdrvhost.exe, PE32 39->58 dropped 48 conhost.exe 39->48         started        file15 signatures16 process17 process18 50 conhost.exe 46->50         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/99ad8a05662a178655ad915b6c94984303d16aa9499d65a80d7b26bc2d294a7f
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99ad8a05662a178655ad915b6c94984303d16aa9499d65a80d7b26bc2d294a7f/
Verdict:
Malicious
Threat:
Family.QUASAR
Link:
https://tip.neiki.dev/file/99ad8a05662a178655ad915b6c94984303d16aa9499d65a80d7b26bc2d294a7f
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tgwyublgfilymvnnsfnwzfeyimb5c2vjjgowlkanpmtlyljjjj7q._file
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04 defense_evasion discovery execution persistence spyware trojan
Link:
https://tria.ge/reports/251017-w3x3psgn9w/
Behaviour
Modifies data under HKEY_USERS
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in System32 directory
Indicator Removal: File Deletion
Checks computer location settings
Executes dropped EXE
Badlisted process makes network request
Downloads MZ/PE file
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
vaxlet.duckdns.org:1337
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/52e9f48d-31b1-4869-8998-306a61adc6b8
Unpacked files
SH256 hash:
99ad8a05662a178655ad915b6c94984303d16aa9499d65a80d7b26bc2d294a7f
MD5 hash:
eba09a554fe5f6d31933e9dbcb2b4d79
SHA1 hash:
837be31604e5d639eabf853103fc0ac6158ce8df
Link:
https://www.unpac.me/results/5ec12b3a-06f0-4e6d-b018-dca642cf5bba/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/99ad8a05662a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.77
Link:
https://yomi.yoroi.company/submissions/99ad8a05662a178655ad915b6c94984303d16aa9499d65a80d7b26bc2d294a7f

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:detect_powershell
Create hunting rule
Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
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)

File information

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

QuasarRAT

Executable exe 99ad8a05662a178655ad915b6c94984303d16aa9499d65a80d7b26bc2d294a7f

(this sample)

QuasarRAT

Executable exe 5e532dc348cea226907ee286cc623670b87c8f642262ea771b226b7b684fc7d9

  
Dropping
SHA256 5e532dc348cea226907ee286cc623670b87c8f642262ea771b226b7b684fc7d9
  
Dropping
MD5 84109d283687230f5dfcf60dabc59f76
  
Dropping
SHA256 a58c8b458a1e1ea8000fd8314decaf3d28f2883e514cd22f1a2174610941011b
  
Dropping
MD5 20e04263428ee7c59caeb7248e486ba9
Cape
Cape
https://www.capesandbox.com/analysis/33240/

Comments