MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f3e081a4b2e4302d3b14e5f16aca269ea93aa5cb816bb7ac2a8e4f51a80f0fde. 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: 17
| SHA256 hash: | f3e081a4b2e4302d3b14e5f16aca269ea93aa5cb816bb7ac2a8e4f51a80f0fde |
|---|---|
| SHA3-384 hash: | b325553685e87363141d5456a4bee183e39ab90a8a0e5106535294d372fdcfabc03217d823620b8c30d0c003547f0f68 |
| SHA1 hash: | c14ad7985e4720a3ba050e93a10103385c5c8d70 |
| MD5 hash: | 01cf7d7e2e057c95e861a95cbfec6221 |
| humanhash: | louisiana-cat-aspen-social |
| File name: | 175687974566d634c9e34842f77093b78cebc8d3b2a82702c3c13651dc1fe8e1e45d43aa67939.dat-decoded |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 2'149'888 bytes |
| First seen: | 2025-09-03 09:02:13 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 81bd0a759bb35e35112306c97d63e830 (1 x QuasarRAT) |
| ssdeep | 24576:U9yEo0uwHZNKoTYhINlW7ZQT1qV+ghdk0fWtDpute41VteA5nJGSbYSLJDy:8oP+NKIYNGShCDpyeAXe8nzYS1Dy |
| TLSH | T1ABA52326B3A510FAE9B3C57D8D934544EB72BC528361DACB03500AA72F277E09E3D752 |
| TrID | 44.4% (.EXE) Win64 Executable (generic) (10522/11/4) 21.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 8.7% (.ICL) Windows Icons Library (generic) (2059/9) 8.5% (.EXE) OS/2 Executable (generic) (2029/13) 8.4% (.EXE) Generic Win/DOS Executable (2002/3) |
| Magika | pebin |
| Reporter |  abuse_ch |
| Tags: | dat-decoded exe QuasarRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
70
Origin country :
SEVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
175687974566d634c9e34842f77093b78cebc8d3b2a82702c3c13651dc1fe8e1e45d43aa67939.dat-decoded.exe
Verdict:
Malicious activity
Analysis date:
2025-09-03 09:05:33 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
93.3%
Tags:
virus overt remo
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Creating a window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Connection attempt
Sending a custom TCP request
DNS request
Using the Windows Management Instrumentation requests
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
explorer fingerprint installer lolbin microsoft_visual_cc obfuscated packed packed packer_detected
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-09-03T04:31:00Z UTC
Last seen:
2025-09-03T04:31:00Z UTC
Hits:
~10
Detections:
Trojan.MSIL.Donut.sb PDM:Trojan.Win32.Generic Trojan.MSIL.Quasar.a Backdoor.MSIL.Agent.sb Trojan.Win64.Agentb.sb Trojan.MSIL.Quasar.ewh HEUR:Trojan-Banker.MSIL.ClipBanker.gen Trojan-PSW.MSIL.Agent.sb Trojan.Win32.Shellcode.sb HackTool.Win64.FreshyCalls.sb
Verdict:
Malicious
Result
Threat name:
Quasar
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Changes memory attributes in foreign processes to executable or writable
Creates a thread in another existing process (thread injection)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects code into the Windows Explorer (explorer.exe)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Score:
98%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Verdict:
Malicious
Threat:
Family.QUASAR
Threat name:
Win64.Backdoor.Quasar
Status:
Malicious
First seen:
2025-09-03 09:03:30 UTC
File Type:
PE+ (Exe)
AV detection:
19 of 24 (79.17%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar spyware trojan
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Quasar RAT
Quasar family
Quasar payload
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
f3e081a4b2e4302d3b14e5f16aca269ea93aa5cb816bb7ac2a8e4f51a80f0fde
MD5 hash:
01cf7d7e2e057c95e861a95cbfec6221
SHA1 hash:
c14ad7985e4720a3ba050e93a10103385c5c8d70
Malware family:
DonutLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
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: | Check_OutputDebugStringA_iat |
|---|
| Rule name: | CP_AllMal_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication |
| Rule name: | CP_Script_Inject_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(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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