MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ba8d38575e15f2a8a3c819d3f2e189acdf9249c99240236c8be4f96d7284530d. 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: 18
| SHA256 hash: | ba8d38575e15f2a8a3c819d3f2e189acdf9249c99240236c8be4f96d7284530d |
|---|---|
| SHA3-384 hash: | a23efd256b8e887dd4586d7931c59ea4d3e29d5579c5269944eb19ff74175bab11ec93acfef1fa1af05a7e64339082ff |
| SHA1 hash: | acbd14848a8421926f585b37cdffa70a6e4b9e95 |
| MD5 hash: | 7dbf1cd5241dd382d74ce86edd1f5950 |
| humanhash: | floor-nebraska-friend-georgia |
| File name: | Valosysinfo.exe |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 326'144 bytes |
| First seen: | 2026-06-05 01:45:12 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (49'067 x AgentTesla, 20'020 x Formbook, 12'352 x SnakeKeylogger) |
| ssdeep | 6144:adnzzkMHitAUXObRVAhQ6qOLayreVZUFQnmgn6aha3lkMMeNUFoEWOMscig8hnlL:SnzzkMCtAUXObRVAh8TYiTo8hnlgAZ6O |
| Threatray | 201 similar samples on MalwareBazaar |
| TLSH | T1F464455D4F6845C0CA4CAA388ED2DE1A637E1E73AC46D755AC183FC17632F4C2AA3356 |
| TrID | 72.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 6.4% (.EXE) Win64 Executable (generic) (6522/11/2) 4.4% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23) |
| Magika | pebin |
| dhash icon | ccb2706971d4f0f0 (1 x QuasarRAT) |
| 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 |
|---|---|
| 95.70.188.185:1337 | https://threatfox.abuse.ch/ioc/1822624/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
146
Origin country :
NLVendor Threat Intelligence
Malware configuration found for:
PS2EXE
Details
PS2EXE
an extracted PowerShell script
Malware family:
quasar
ID:
1
File name:
Valosysinfo.exe
Verdict:
Malicious activity
Analysis date:
2026-06-04 16:26:15 UTC
Tags:
susp-powershell loader auto-sch quasar
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
97.4%
Tags:
infosteal autorun quasar
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Deleting a recently created file
Creating a window
Creating a file
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-06-04T13:42:00Z UTC
Last seen:
2026-06-06T21:47:00Z UTC
Hits:
~100
Detections:
Trojan.Win32.Agent.sb Trojan.MSIL.Quasar.hhh Trojan-Downloader.Agent.HTTP.C&C Backdoor.Agent.TCP.C&C NetTool.PowerShellUA.HTTP.C&C NetTool.PowerShellGet.HTTP.C&C
Malware family:
Quasar RAT
Verdict:
Malicious
Result
Threat name:
Quasar
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
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 submitted file
Potential Privilege Escalation using Task Scheduler highest RunLevel
Reads the Security eventlog
Reads the System eventlog
Sample uses string decryption to hide its real strings
Sigma detected: Files With System Process Name In Unsuspected Locations
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Family.QUASAR
Threat name:
Win32.Backdoor.Quasar
Status:
Suspicious
First seen:
2026-06-04 16:26:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
24 of 38 (63.16%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
suspicious
Label(s):
admintool_ps2exe
Similar samples:
+ 191 additional samples on MalwareBazaar
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar botnet:office04 execution persistence spyware trojan
Behaviour
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
Executes dropped EXE
Badlisted process makes network request
Downloads MZ/PE file
Family: Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
branleet.duckdns.org:1337
Unpacked files
SH256 hash:
ba8d38575e15f2a8a3c819d3f2e189acdf9249c99240236c8be4f96d7284530d
MD5 hash:
7dbf1cd5241dd382d74ce86edd1f5950
SHA1 hash:
acbd14848a8421926f585b37cdffa70a6e4b9e95
Malware family:
QuasarRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.77
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 |
|---|---|
| Author: | daniyyell |
| Description: | Detects suspicious PowerShell activity related to malware execution |
| Rule name: | Detect_PowerShell_Obfuscation |
|---|---|
| Author: | daniyyell |
| Description: | Detects obfuscated PowerShell commands commonly used in malicious scripts. |
| Rule name: | Disable_Defender |
|---|---|
| Author: | iam-py-test |
| Description: | Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| 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.
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