MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 517a1f946ddd3d532ba53b7b0b8da56b05516415a75aca02de9844a054997c4d. 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: 15
| SHA256 hash: | 517a1f946ddd3d532ba53b7b0b8da56b05516415a75aca02de9844a054997c4d |
|---|---|
| SHA3-384 hash: | 5966f1ab8720e6ac8e1b9999589936d876de0efe40a6287f93e37fe0fd9fbc21b8433e0e62f5e66ea60cabe4099b5b41 |
| SHA1 hash: | 87696fe93eb86d3af2a4f577d8ef63917e11b420 |
| MD5 hash: | 271832cf4f192b559c9e8171f9d22340 |
| humanhash: | low-massachusetts-bacon-hot |
| File name: | 271832cf4f192b559c9e8171f9d22340.exe |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 10'986'128 bytes |
| First seen: | 2025-08-11 09:09:42 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 4cc73de8cd7c1f7f5369f4155bc01c8c (1 x QuasarRAT) |
| ssdeep | 196608:1Jzp4NCRTYF5zt74O7S9fY+i7PylwjCCmaNKPQ/FzHT6:1Jz2zZ7SdAjdHT6 |
| Threatray | 22 similar samples on MalwareBazaar |
| TLSH | T188B6AE3093C6D1F6EE5E40761A35AF231B39AFB49370245D7EE058E9A2369247C37326 |
| TrID | 40.3% (.EXE) Win64 Executable (generic) (10522/11/4) 19.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 17.2% (.EXE) Win32 Executable (generic) (4504/4/1) 7.7% (.EXE) OS/2 Executable (generic) (2029/13) 7.6% (.EXE) Generic Win/DOS Executable (2002/3) |
| Magika | pebin |
| dhash icon | 2b4665c49c9c8043 (1 x QuasarRAT) |
| Reporter |  abuse_ch |
| Tags: | exe QuasarRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
44
Origin country :
SEVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
271832cf4f192b559c9e8171f9d22340.exe
Verdict:
Malicious activity
Analysis date:
2025-08-11 09:10:06 UTC
Tags:
auto-reg evasion crypto-regex
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
99.1%
Tags:
autorun dropper virus sage
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Сreating synchronization primitives
Launching a process
Setting a keyboard event handler
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
adaptive-context fingerprint invalid-signature krypt microsoft_visual_cc obfuscated signed
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Malicious
Result
Threat name:
Quasar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
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
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: Potentially Suspicious Malware Callback Communication
Sigma detected: Schedule system process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Score:
94%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) Win 32 Exe x86
Verdict:
Malicious
Threat:
Win32.Malware.Heuristic
Threat name:
Win32.Trojan.Etset
Status:
Malicious
First seen:
2025-08-07 02:17:58 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
19 of 36 (52.78%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
quasarrat
Similar samples:
+ 12 additional samples on MalwareBazaar
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar discovery execution persistence spyware trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Quasar RAT
Quasar family
Quasar payload
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
517a1f946ddd3d532ba53b7b0b8da56b05516415a75aca02de9844a054997c4d
MD5 hash:
271832cf4f192b559c9e8171f9d22340
SHA1 hash:
87696fe93eb86d3af2a4f577d8ef63917e11b420
Malware family:
QuasarRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.08
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: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| 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 (HIGH_ENTROPY_VA) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| COM_BASE_API | Can Download & Execute components | ole32.dll::CLSIDFromProgID |
| GDI_PLUS_API | Interfaces with Graphics | gdiplus.dll::GdiplusStartup gdiplus.dll::GdiplusShutdown gdiplus.dll::GdipAlloc |
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::OpenProcess WININET.dll::InternetCloseHandle KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::LoadLibraryW KERNEL32.dll::LoadLibraryA KERNEL32.dll::GetSystemInfo KERNEL32.dll::GetStartupInfoW |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleMode KERNEL32.dll::GetConsoleOutputCP |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CreateFileA KERNEL32.dll::CreateFileW KERNEL32.dll::CreateFileMappingW KERNEL32.dll::DeleteFileA KERNEL32.dll::DeleteFileW KERNEL32.dll::GetWindowsDirectoryA |
| WIN_REG_API | Can Manipulate Windows Registry | ADVAPI32.dll::RegOpenKeyExA |
| WIN_USER_API | Performs GUI Actions | USER32.dll::CreateWindowExW |
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.