MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1bba1bf5a4366bb6110c876c5b7747edf409b1cb6ac6e3b7dfadf98778d7a7fc. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1bba1bf5a4366bb6110c876c5b7747edf409b1cb6ac6e3b7dfadf98778d7a7fc
SHA3-384 hash: 2af2937b393baf2ef63633873377de190242474a904ded8d763f775e068a92f9e842732dc6e5069e70261e328c99ead6
SHA1 hash: 2e33bba05ed8628a08aad9fa635a10632a96e69d
MD5 hash: ddca881daa4af6f38e4a2e8894834369
humanhash: ack-kentucky-magazine-wisconsin
File name:RuntimeBroker.bat
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:2'162'413 bytes
First seen:2025-11-17 07:56:57 UTC
Last seen:Never
File type:Batch (bat) bat
MIME type:text/plain
ssdeep 24576:rbSj7ETyhLL4c99IrbYeCFwi3caFscA581/7BiSeW1HBTSFC/N/mrEHSU3XbfWSc:KjmPrbYui3ZAWx9xGsNUk3lHLO
TLSH T1BFA5014F84021376266FA339E119C187B55E0FF25AEBFED618B6B3D9715891E80838DC
Magika batch
Reporter smica83
Tags:bat QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
60
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_1bba1bf5a4366bb6110c876c5b7747edf409b1cb6ac6e3b7dfadf98778d7a7fc.txt
Verdict:
No threats detected
Analysis date:
2025-11-17 07:58:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9990b60f-7149-4214-b918-9fbabc0ad91b

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/38434/
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=691ad564bdb0ec3a9dc2a30c
Tags:
obfuscate xtreme shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Running batch commands
Creating a process with a hidden window
Sending a custom TCP request
Launching cmd.exe command interpreter
Creating a file
Enabling the 'hidden' option for recently created files
Creating a window
Сreating synchronization primitives
Connecting to a non-recommended domain
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
cmd findstr lolbin obfuscated powershell
Link:
https://www.filescan.io/uploads/691ad5619b103d18a3a5c822/reports/5db57b97-baae-4fb9-9ba7-4c62d1cafe80/overview
Verdict:
Suspicious
Labled as:
Trojan/BAT.Obfus
Link:
https://www.hybrid-analysis.com/sample/1bba1bf5a4366bb6110c876c5b7747edf409b1cb6ac6e3b7dfadf98778d7a7fc
Verdict:
Malicious
File Type:
text
First seen:
2025-11-17T14:55:00Z UTC
Last seen:
2025-11-17T15:10:00Z UTC
Hits:
~10
Detections:
Trojan.BAT.Agent.cpx
Link:
https://opentip.kaspersky.com/1bba1bf5a4366bb6110c876c5b7747edf409b1cb6ac6e3b7dfadf98778d7a7fc/results?tab=lookup
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1815108
Signature
.NET source code contains potential unpacker
.NET source code contains process injector
.NET source code references suspicious native API functions
Contains functionality to disable the Task Manager (.Net Source)
Drops VBS files to the startup folder
Found large BAT file
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Sample uses string decryption to hide its real strings
Sets debug register (to hijack the execution of another thread)
Sigma detected: Drops script at startup location
Sigma detected: Potentially Suspicious Malware Callback Communication
Sigma detected: Powerup Write Hijack DLL
Sigma detected: Register Wscript In Run Key
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript called in batch mode (surpress errors)
Wscript starts Powershell (via cmd or directly)
Yara detected AntiVM3
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1815108 Sample: RuntimeBroker.bat Startdate: 17/11/2025 Architecture: WINDOWS Score: 100 105 Sigma detected: Register Wscript In Run Key 2->105 107 Found malware configuration 2->107 109 Malicious sample detected (through community Yara rule) 2->109 111 14 other signatures 2->111 9 cmd.exe 1 2->9         started        12 wscript.exe 1 2->12         started        14 wscript.exe 2->14         started        16 2 other processes 2->16 process3 dnsIp4 119 Suspicious powershell command line found 9->119 121 Wscript starts Powershell (via cmd or directly) 9->121 19 powershell.exe 12 9->19         started        22 conhost.exe 9->22         started        123 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->123 125 Suspicious execution chain found 12->125 24 cmd.exe 1 12->24         started        26 cmd.exe 14->26         started        89 127.0.0.1 unknown unknown 16->89 28 cmd.exe 16->28         started        signatures5 process6 signatures7 113 Drops VBS files to the startup folder 19->113 30 cmd.exe 1 19->30         started        115 Suspicious powershell command line found 24->115 117 Wscript starts Powershell (via cmd or directly) 24->117 33 powershell.exe 12 24->33         started        35 conhost.exe 24->35         started        37 powershell.exe 26->37         started        39 conhost.exe 26->39         started        41 conhost.exe 26->41         started        43 powershell.exe 28->43         started        45 conhost.exe 28->45         started        process8 signatures9 127 Wscript starts Powershell (via cmd or directly) 30->127 47 powershell.exe 1 34 30->47         started        52 conhost.exe 30->52         started        54 cmd.exe 1 30->54         started        56 findstr.exe 1 30->56         started        58 cmd.exe 1 33->58         started        60 cmd.exe 37->60         started        62 cmd.exe 43->62         started        process10 dnsIp11 91 45.156.87.23, 4444 SKYLINKNL Germany 47->91 83 C:\Users\user\AppData\...\9kDJ0NpOsG.vbs, ASCII 47->83 dropped 85 C:\Users\user\AppData\Local\...\YOH662bW.bat, ASCII 47->85 dropped 87 C:\Users\user\AppData\...\4WnxfIl6b8.vbs, ASCII 47->87 dropped 97 Sets debug register (to hijack the execution of another thread) 47->97 99 Modifies the context of a thread in another process (thread injection) 47->99 101 Hides that the sample has been downloaded from the Internet (zone.identifier) 47->101 103 Wscript starts Powershell (via cmd or directly) 58->103 64 powershell.exe 58->64         started        67 conhost.exe 58->67         started        69 cmd.exe 1 58->69         started        71 findstr.exe 1 58->71         started        73 powershell.exe 60->73         started        75 conhost.exe 60->75         started        79 2 other processes 60->79 77 powershell.exe 62->77         started        81 3 other processes 62->81 file12 signatures13 process14 signatures15 93 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 64->93 95 Modifies the context of a thread in another process (thread injection) 64->95
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/1bba1bf5a4366bb6110c876c5b7747edf409b1cb6ac6e3b7dfadf98778d7a7fc
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1bba1bf5a4366bb6110c876c5b7747edf409b1cb6ac6e3b7dfadf98778d7a7fc/
Verdict:
Clean
Link:
https://tip.neiki.dev/file/1bba1bf5a4366bb6110c876c5b7747edf409b1cb6ac6e3b7dfadf98778d7a7fc
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=do5bx5negzv3meimq5wfw52h5x2atmolnldohn67vx4yo6gxu76a._file
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar execution spyware trojan
Link:
https://tria.ge/reports/251117-jtehsavkes/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
An obfuscated cmd.exe command-line is typically used to evade detection.
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Quasar RAT
Quasar family
Quasar payload
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/1bba1bf5a4366bb6110c876c5b7747edf409b1cb6ac6e3b7dfadf98778d7a7fc

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/38434/

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