MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 58c0f6f8f34d79ea67065761fd2bfc32101c1611cb7d16f5c15f8c19f8572e65. 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
| SHA256 hash: | 58c0f6f8f34d79ea67065761fd2bfc32101c1611cb7d16f5c15f8c19f8572e65 |
|---|---|
| SHA3-384 hash: | cb0bf8ffdff32e5d83e02edcf1712544b41a37abe299c2dd8b31c591988e5c63164aa45849eb835008e8c7cecc8a1a86 |
| SHA1 hash: | 9fe0ab54fbfd04d634da4c5828aa572d4e15745a |
| MD5 hash: | b6c327ecd634048616a94ed051fb4cd3 |
| humanhash: | robin-freddie-hot-violet |
| File name: | x58c0f6f8f34d79ea67065761fd2bfc32101c1611cb7d.exe |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 3'368'448 bytes |
| First seen: | 2026-03-29 03:25:06 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 75f14bd3d4365d0894065c02d34d471a (1 x QuasarRAT) |
| ssdeep | 98304:nFB4syHalDOo2ZNAVkZnffwQP9v9C7TmYVRKX:ngsTlCo2YVkLN9C7hVRU |
| Threatray | 1 similar samples on MalwareBazaar |
| TLSH | T181F5F1838FA21F96DD7116FA1658B08187CD60AD22A4DFC7E171E2936F1BF172D39908 |
| TrID | 33.1% (.EXE) Win64 Executable (generic) (6522/11/2) 25.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 10.4% (.ICL) Windows Icons Library (generic) (2059/9) 10.3% (.EXE) OS/2 Executable (generic) (2029/13) 10.1% (.EXE) Generic Win/DOS Executable (2002/3) |
| Magika | pebin |
| Reporter |  abuse_ch |
| Tags: | exe QuasarRAT RAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 54.172.72.215:4443 | https://threatfox.abuse.ch/ioc/1778241/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
162
Origin country :
NLVendor Threat Intelligence
Gathering data
Malware family:
quasar
ID:
1
File name:
x58c0f6f8f34d79ea67065761fd2bfc32101c1611cb7d16f5c15f8c19f8572e65.exe
Verdict:
Malicious activity
Analysis date:
2026-03-29 03:11:04 UTC
Tags:
quasar
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarRAT
Verdict:
Malicious
Score:
99.9%
Tags:
infosteal asyncrat quasar
Result
Verdict:
Malware
Maliciousness:
Behaviour
Connection attempt
Creating a file
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a window
Unauthorized injection to a recently created process
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
anti-debug anti-vm microsoft_visual_cc packed
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-03-28T18:07:00Z UTC
Last seen:
2026-03-30T14:23:00Z UTC
Hits:
~100
Detections:
Trojan.MSIL.Quasar.a HEUR:Trojan.MSIL.Quasar.gen Trojan.MSIL.Quasar.grw Trojan-PSW.Win32.Stealer.sb Trojan-PSW.MSIL.Agent.sb Trojan.Win32.Quasar.sb
Malware family:
Quasar RAT
Verdict:
Malicious
Result
Threat name:
Quasar
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Sigma detected: Execution from Suspicious Folder
Sigma detected: Potentially Suspicious Malware Callback Communication
Sigma detected: Suspicious Program Location with Network Connections
Suricata IDS alerts for network traffic
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Family.QUASAR
Threat name:
Win64.Backdoor.Quasar
Status:
Malicious
First seen:
2026-03-29 02:13:00 UTC
AV detection:
16 of 24 (66.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar botnet:office04 spyware trojan
Behaviour
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
54.172.72.215:4443
Unpacked files
SH256 hash:
58c0f6f8f34d79ea67065761fd2bfc32101c1611cb7d16f5c15f8c19f8572e65
MD5 hash:
b6c327ecd634048616a94ed051fb4cd3
SHA1 hash:
9fe0ab54fbfd04d634da4c5828aa572d4e15745a
Malware family:
QuasarRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
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: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | FreddyBearDropper |
|---|---|
| Author: | Dwarozh Hoshiar |
| Description: | Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip. |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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