MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 62e0383b93de31204574ab52d136c58469e710ce38d2d7f061438ab5abbd76f7. 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: 16
| SHA256 hash: | 62e0383b93de31204574ab52d136c58469e710ce38d2d7f061438ab5abbd76f7 |
|---|---|
| SHA3-384 hash: | 788555e1b17ae2e0f73f8fb80b508734f05ba10c4744a5fa1b2c3eca65658cb5aeced95bf1ab328b9de37d869b611c90 |
| SHA1 hash: | 9b70793f951d1075a77359d4eed2724f5ab43618 |
| MD5 hash: | 98eec941c9f526b5b02a1acd133fa8f9 |
| humanhash: | texas-jupiter-nitrogen-mike |
| File name: | file.exe |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 2'188'288 bytes |
| First seen: | 2025-08-15 15:21:15 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | d7ef5f7283df054ac442e704d31684ab (1 x QuasarRAT) |
| ssdeep | 49152:OKjQQBS0B7VDzbXkC5ZcPweqdDN+BR131p6eChzrsmxf:/Q7gVDzTkC7cIeyDwNTBChzrd |
| Threatray | 3 similar samples on MalwareBazaar |
| TLSH | T1C7A52315A7E558F9E9B3913CCD834806EA72BC0553A0E5CB07908FA72F276E49E3E711 |
| 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: | exe QuasarRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
47
Origin country :
SEVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2025-08-14_98eec941c9f526b5b02a1acd133fa8f9_black-basta_luca-stealer.exe
Verdict:
Malicious activity
Analysis date:
2025-08-14 22:06:12 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:
92.5%
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:
anti-debug base64 explorer fingerprint installer lolbin microsoft_visual_cc packed quasarrat redcap
Verdict:
Malicious
Labled as:
Trojan_Win64_QuasarRAT_GZF_MTB
Verdict:
Malicious
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
96 / 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)
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
System process connects to network (likely due to code injection or exploit)
Writes to foreign memory regions
Behaviour
Behavior Graph:
Score:
99%
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:
Trojan.MSIL.Quasar
Threat name:
Win64.Backdoor.Quasar
Status:
Malicious
First seen:
2025-08-14 08:42:23 UTC
File Type:
PE+ (Exe)
AV detection:
24 of 37 (64.86%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
quasarrat
donut_injector
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar botnet:rat defense_evasion spyware trojan
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies trusted root certificate store through registry
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
144.172.112.239:4782
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
62e0383b93de31204574ab52d136c58469e710ce38d2d7f061438ab5abbd76f7
MD5 hash:
98eec941c9f526b5b02a1acd133fa8f9
SHA1 hash:
9b70793f951d1075a77359d4eed2724f5ab43618
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: | 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.
BLint
The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.
Findings
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CloseHandle |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineW KERNEL32.dll::GetCommandLineA |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleOutputCP KERNEL32.dll::GetConsoleMode |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CreateFileW |
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