MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 36b2fba9c11bfaaebc80aff915f5affe6c084ab99faefc15565c171a2d077266. 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


Intelligence 19 IOCs YARA 24 File information Comments

SHA256 hash: 36b2fba9c11bfaaebc80aff915f5affe6c084ab99faefc15565c171a2d077266
SHA3-384 hash: 78fcca92e41cf48adbc0847f5e21a950fb946e9d359aa20ae401922d768c7269b838457247e686ea36ba92fe3b88d92c
SHA1 hash: 4f7d008ba81dd157d725a70313cbe599c73787aa
MD5 hash: c974302148f5c21364c07081ba060724
humanhash: hamper-tennessee-freddie-echo
File name:file
Download: download sample
Signature QuasarRAT
File size:880'128 bytes
First seen:2025-10-12 04:03:27 UTC
Last seen:2025-10-13 04:10:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:8bSn/KgsCupQyg7oZisqtksOtgg+WLyDrQ9/7WxdtbiqCr8AN1yEl1NsaceP1cDP:8bgyeyclOoWLuyWf1wN1J1cCe
Threatray 223 similar samples on MalwareBazaar
TLSH T1E515CE5073E98207F1BF6FB5A5B709050B77B956A53AD75F0888A0AD0EA3381CE503B7
TrID 62.2% (.RLL) Microsoft Resource Library (x86) (177572/6/26)
25.6% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
3.6% (.EXE) Win64 Executable (generic) (10522/11/4)
2.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter Bitsight
Tags:dropped-by-amadey exe QuasarRAT


Avatar
Bitsight
url: http://178.16.55.189/files/7044575709/OYRd3fj.exe

Intelligence


File Origin
# of uploads :
8
# of downloads :
95
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
_5f29a44082777948c77009b37df18b6a8f16233115bc0efc269db93b73955c39.exe
Verdict:
Malicious activity
Analysis date:
2025-10-11 19:37:11 UTC
Tags:
auto amadey botnet stealer redline loader anti-evasion unlocker-eject tool telegram arch-exec stealc vidar darkvision remote evasion github banker grandoreiro themida rdp miner pastebin ms-smartcard autoit xworm purecrypter winring0-sys vuln-driver gcleaner silentcryptominer xor-url generic phishing rustystealer lumma

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
vmdetect quasar emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the Program Files subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm anti-vm cmd explorer hacktool lolbin obfuscated obfuscated packed packed packer_detected remote runonce threat update
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-11T11:09:00Z UTC
Last seen:
2025-10-12T17:48:00Z UTC
Hits:
~100
Detections:
Trojan.MSIL.Quasar.a HEUR:Trojan-Banker.MSIL.ClipBanker.gen PDM:Trojan.Win32.Tasker.cust BSS:Trojan.Win32.Generic Backdoor.MSIL.Crysan.d Trojan-PSW.MSIL.Agent.sb Trojan.MSIL.Quasar.feq
Verdict:
QuasarRat
YARA:
15 match(es)
Tags:
.Net Executable Fody/Costura Packer Html Malicious Managed .NET PDB Path PE (Portable Executable) PE File Layout QuasarRat RAT SOS: 0.14 SOS: 0.15 SOS: 0.17 SOS: 0.18 SOS: 0.23 SOS: 0.24 SOS: 0.25 SOS: 0.26 SOS: 0.64 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Hacktool.Aikaantivm
Status:
Malicious
First seen:
2025-10-11 13:26:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
22 of 24 (91.67%)
Threat level:
  1/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar execution persistence spyware trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Drops file in Program Files directory
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Verdict:
Malicious
Tags:
red_team_tool rat quasar_rat backdoor backnet Win.Malware.Generic-9883083-0
YARA:
HKTL_EXE_AlKhaser_Jul_01 MAL_QuasarRAT_May19_1 malware_windows_quasarrat MAL_BackNet_Nov18_1
Unpacked files
SH256 hash:
36b2fba9c11bfaaebc80aff915f5affe6c084ab99faefc15565c171a2d077266
MD5 hash:
c974302148f5c21364c07081ba060724
SHA1 hash:
4f7d008ba81dd157d725a70313cbe599c73787aa
Detections:
QuasarRAT
Malware family:
QuasarRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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_Dlls
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:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Detect_PowerShell_Obfuscation
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
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
Rule name:INDICATOR_EXE_Packed_Fody
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:Indicator_MiniDumpWriteDump
Author:Obscurity Labs LLC
Description:Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:MAL_BackNet_Nov18_1
Author:Florian Roth (Nextron Systems)
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:MAL_BackNet_Nov18_1_RID2D6D
Author:Florian Roth
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:MAL_QuasarRAT_May19_1
Author:Florian Roth (Nextron Systems)
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MAL_QuasarRAT_May19_1
Description:Detects QuasarRAT malware
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:RANSOMWARE
Author:ToroGuitar
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.

Web download

QuasarRAT

Executable exe 36b2fba9c11bfaaebc80aff915f5affe6c084ab99faefc15565c171a2d077266

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download

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