MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5e49e7ec748a0b4cfdecdddc5fdfaf9f5b7f38f73e962a4017b402ba8143d02. 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: 21


Intelligence 21 IOCs 1 YARA 28 File information Comments

SHA256 hash: f5e49e7ec748a0b4cfdecdddc5fdfaf9f5b7f38f73e962a4017b402ba8143d02
SHA3-384 hash: df8221046588b363e2376d31d79ffdd4d450cb7b8d66e8e8186b17e9717a74fde22693a016619f5b5aac061992cd2f73
SHA1 hash: 574419dc82f400a51b1b00c5518eff09fb102790
MD5 hash: 53325c85f989794efad017732bb2fca4
humanhash: jig-edward-illinois-montana
File name:f5e49e7ec748a0b4cfdecdddc5fdfaf9f5b7f38f73e96.exe
Download: download sample
Signature QuasarRAT
File size:3'266'048 bytes
First seen:2025-10-27 07:55:06 UTC
Last seen:2025-11-23 00:10:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 49152:rvkt62XlaSFNWPjljiFa2RoUYIGbqobbR7LoGdrZTHHB72eh2NT:rv462XlaSFNWPjljiFXRoUYIGWoZ7
Threatray 1'456 similar samples on MalwareBazaar
TLSH T1FAE54A0437F85E23E1ABE37395B0041367F0FC1AB363EB0B6591677A5C53B509982AA7
TrID 58.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
13.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
8.4% (.EXE) Win64 Executable (generic) (10522/11/4)
5.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter abuse_ch
Tags:exe QuasarRAT RAT


Avatar
abuse_ch
QuasarRAT C2:
82.64.201.145:43710

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
82.64.201.145:43710 https://threatfox.abuse.ch/ioc/1627367/

Intelligence


File Origin
# of uploads :
2
# of downloads :
120
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
f5e49e7ec748a0b4cfdecdddc5fdfaf9f5b7f38f73e962a4017b402ba8143d02.bin.exe
Verdict:
Malicious activity
Analysis date:
2025-10-27 07:39:34 UTC
Tags:
auto-reg quasar

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

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-27T04:50:00Z UTC
Last seen:
2025-10-28T02:37:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.MSIL.Quasar.gen Trojan-PSW.Win32.Stealer.sb Trojan-PSW.MSIL.Agent.sb Trojan.Win32.Quasar.sb Trojan.MSIL.Quasar.a HEUR:Trojan-Spy.MSIL.Agent.sb PDM:Trojan.Win32.Tasker.cust
Result
Threat name:
AsyncRAT, Quasar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Connects to many ports of the same IP (likely port scanning)
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 dropped file
Multi AV Scanner detection for submitted file
Obfuscated command line found
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected Quasar RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1802226 Sample: f5e49e7ec748a0b4cfdecdddc5f... Startdate: 27/10/2025 Architecture: WINDOWS Score: 100 59 ipwho.is 2->59 61 Suricata IDS alerts for network traffic 2->61 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 7 other signatures 2->67 11 f5e49e7ec748a0b4cfdecdddc5fdfaf9f5b7f38f73e96.exe 5 2->11         started        15 QKnxJDdjK7.exe 3 2->15         started        signatures3 process4 file5 51 C:\Users\user\AppData\...\QKnxJDdjK7.exe, PE32 11->51 dropped 53 f5e49e7ec748a0b4cf...b7f38f73e96.exe.log, CSV 11->53 dropped 79 Uses schtasks.exe or at.exe to add and modify task schedules 11->79 81 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->81 17 QKnxJDdjK7.exe 14 4 11->17         started        22 schtasks.exe 1 11->22         started        signatures6 process7 dnsIp8 55 82.64.201.145, 43710, 49716 PROXADFR France 17->55 57 ipwho.is 147.135.36.89, 443, 49720 OVHFR United States 17->57 49 C:\Users\user\AppData\...\dpnc4gZ2CfT4.exe, PE32+ 17->49 dropped 69 Antivirus detection for dropped file 17->69 71 Multi AV Scanner detection for dropped file 17->71 73 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->73 75 Installs a global keyboard hook 17->75 24 dpnc4gZ2CfT4.exe 1 17->24         started        27 schtasks.exe 1 17->27         started        29 conhost.exe 22->29         started        file9 signatures10 process11 signatures12 77 Obfuscated command line found 24->77 31 cmd.exe 1 24->31         started        33 conhost.exe 24->33         started        35 conhost.exe 27->35         started        process13 process14 37 cmd.exe 1 31->37         started        39 schtasks.exe 1 31->39         started        41 schtasks.exe 1 31->41         started        43 23 other processes 31->43 process15 45 schtasks.exe 1 37->45         started        47 findstr.exe 1 37->47         started       
Verdict:
inconclusive
YARA:
13 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.31 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Backdoor.Quasar
Status:
Malicious
First seen:
2025-10-27 07:39:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
28 of 36 (77.78%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:sonar execution persistence spyware trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
82.64.201.145:43710
Verdict:
Malicious
Tags:
rat quasar_rat stealer Win.Malware.Generic-9883083-0
YARA:
MAL_QuasarRAT_May19_1 malware_windows_quasarrat win_quasar_rat_client MALWARE_Win_Quasarstealer
Unpacked files
SH256 hash:
f5e49e7ec748a0b4cfdecdddc5fdfaf9f5b7f38f73e962a4017b402ba8143d02
MD5 hash:
53325c85f989794efad017732bb2fca4
SHA1 hash:
574419dc82f400a51b1b00c5518eff09fb102790
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:BLOWFISH_Constants
Author:phoul (@phoul)
Description:Look for Blowfish constants
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: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:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Author:ditekSHen
Description:Detects executables containing common artifacts observed in infostealers
Rule name:Lumma_Stealer_Detection
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
Rule name:MALWARE_Win_QuasarStealer
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MAL_QuasarRAT_May19_1
Description:Detects QuasarRAT malware
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_RID2E1E
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
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:quasarrat
Author:jeFF0Falltrades
Rule name:quasarrat_kingrat
Author:jeFF0Falltrades
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:RC6_Constants
Author:chort (@chort0)
Description:Look for RC6 magic constants in binary
Reference:https://twitter.com/mikko/status/417620511397400576
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
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)
Rule name:Windows_Generic_Threat_803feff4
Author:Elastic Security
Rule name:win_quasar_rat_client
Author:Matthew @ Embee_Research
Description:Detects strings present in Quasar Rat Samples.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments