MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d356b8c6b75a1749f6100920d7317b09f5cead0fd21e4379b741a47548072f2b. 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: 15


Intelligence 15 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d356b8c6b75a1749f6100920d7317b09f5cead0fd21e4379b741a47548072f2b
SHA3-384 hash: 86d9c35d0e8326e094425c736f68a8af269a8efc0825a2d64ab97808769851c661a5536c235921bb7d6ed5a4f403361b
SHA1 hash: 829c7d7ec706ca39482396ab507c0e57e0893bdd
MD5 hash: 4656b7d4ac92c3ad5dcab6859d667606
humanhash: fix-hawaii-kansas-juliet
File name:run.bat
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:20'392 bytes
First seen:2025-09-25 07:45:14 UTC
Last seen:Never
File type:Batch (bat) bat
MIME type:text/x-msdos-batch
ssdeep 384:koGJoEjR6Bz40TA/bAlAVH5MXsJUse6cCZApEHRykJKYdf2/RH6eewHI02f82ipQ:khSEj0B1E/gqusJZFcCZApEHRyVYoJH0
TLSH T1B092297DCCF9BDC8832F31C56A9FBF9201A86723BE911BA8E4C64859075A2C0DB3454D
Magika batch
Reporter abuse_ch
Tags:bat QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
39
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://twitch.br.com/cumkitty
Verdict:
Malicious activity
Analysis date:
2025-09-25 05:45:40 UTC
Tags:
susp-clipboard clickfix phishing payload ta558 apt stegocampaign loader reverseloader evasion stealer susp-powershell crypto-regex
Link:
https://app.any.run/tasks/fc44e93a-dd4d-4ddf-9a2f-76ef2b7a306c

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/28913/
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68d54ce4cc9425144151de96
Tags:
ransomware shell sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a process with a hidden window
Сreating synchronization primitives
Creating a window
Connection attempt
Sending a custom TCP request
DNS request
Using the Windows Management Instrumentation requests
Launching the process to change network settings
Reading critical registry keys
Searching for synchronization primitives
Connection attempt to an infection source
Stealing user critical data
Sending an HTTP GET request to an infection source
Unauthorized injection to a system process
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 obfuscated obfuscated powershell
Link:
https://www.filescan.io/uploads/68d4f341674d5fd6aa0c23a0/reports/b1609eae-6c55-4aef-8eed-0452966a4efc/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/d356b8c6b75a1749f6100920d7317b09f5cead0fd21e4379b741a47548072f2b
Verdict:
Malicious
File Type:
unix shell
First seen:
2025-09-23T16:35:00Z UTC
Last seen:
2025-09-23T16:35:00Z UTC
Hits:
~10
Detections:
Trojan.MSIL.Agentc.a HEUR:Trojan.Multi.Stego.gen HEUR:Trojan.BAT.Alien.gen Trojan-Downloader.SLoad.TCP.ServerRequest Trojan.Agentb.TCP.C&C PDM:Trojan.Win32.Generic Trojan-Downloader.PowerShell.NanoShield.sb
Link:
https://opentip.kaspersky.com/d356b8c6b75a1749f6100920d7317b09f5cead0fd21e4379b741a47548072f2b/results?tab=lookup
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1783796
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Sample uses string decryption to hide its real strings
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Capture Wi-Fi password
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Powershell Decrypt And Execute Base64 Data
Sigma detected: Suspicious PowerShell IEX Execution Patterns
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal WLAN passwords
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1783796 Sample: run.bat Startdate: 25/09/2025 Architecture: WINDOWS Score: 100 47 ipwho.is 2->47 63 Suricata IDS alerts for network traffic 2->63 65 Found malware configuration 2->65 67 Malicious sample detected (through community Yara rule) 2->67 69 13 other signatures 2->69 11 cmd.exe 1 2->11         started        14 svchost.exe 1 1 2->14         started        signatures3 process4 dnsIp5 75 Suspicious powershell command line found 11->75 17 powershell.exe 12 11->17         started        20 conhost.exe 11->20         started        55 127.0.0.1 unknown unknown 14->55 signatures6 process7 signatures8 57 Suspicious powershell command line found 17->57 59 Suspicious execution chain found 17->59 61 Found suspicious powershell code related to unpacking or dynamic code loading 17->61 22 powershell.exe 14 17 17->22         started        process9 dnsIp10 49 62.60.226.168, 49681, 80 ASLINE-AS-APASLINELIMITEDHK Iran (ISLAMIC Republic Of) 22->49 71 Writes to foreign memory regions 22->71 73 Injects a PE file into a foreign processes 22->73 26 RegAsm.exe 15 10 22->26         started        31 conhost.exe 22->31         started        signatures11 process12 dnsIp13 51 45.94.31.128, 4782, 49684, 49693 GBTCLOUDUS Netherlands 26->51 53 ipwho.is 147.135.36.89, 443, 49687 OVHFR United States 26->53 45 C:\Recovery\OEM\3JWI50B4868FQNVXW88M.exe, PE32 26->45 dropped 77 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 26->77 79 Uses netsh to modify the Windows network and firewall settings 26->79 81 Tries to harvest and steal browser information (history, passwords, etc) 26->81 83 3 other signatures 26->83 33 powershell.exe 7 26->33         started        35 netsh.exe 2 26->35         started        37 MpCmdRun.exe 1 31->37         started        file14 signatures15 process16 process17 39 conhost.exe 33->39         started        41 conhost.exe 35->41         started        43 conhost.exe 37->43         started       
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/d356b8c6b75a1749f6100920d7317b09f5cead0fd21e4379b741a47548072f2b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d356b8c6b75a1749f6100920d7317b09f5cead0fd21e4379b741a47548072f2b/
Verdict:
Malicious
Threat:
Family.QUASAR
Link:
https://tip.neiki.dev/file/d356b8c6b75a1749f6100920d7317b09f5cead0fd21e4379b741a47548072f2b
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-09-23 23:26:32 UTC
File Type:
Text (Batch)
AV detection:
5 of 38 (13.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2nllrrvxlilut5qqbeqnoml3bh245lip2ipeg6nxigshksahf4vq._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
error
QuasarRAT
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:pulse defense_evasion discovery execution persistence privilege_escalation spyware stealer trojan
Link:
https://tria.ge/reports/250925-jltmqsvr17/
Behaviour
Kills process with taskkill
Modifies system certificate store
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Wi-Fi Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Reads user/profile data of web browsers
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
45.94.31.128:4782
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d356b8c6b75a/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/d356b8c6b75a1749f6100920d7317b09f5cead0fd21e4379b741a47548072f2b

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: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.

Web download

QuasarRAT

Batch (bat) bat d356b8c6b75a1749f6100920d7317b09f5cead0fd21e4379b741a47548072f2b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3631545/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/28913/

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