Analysis
-
max time kernel
150s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
-
submitted
20-01-2025 19:30
General
-
Target
Client-built.exe
-
Size
288KB
-
MD5
3dbf24c6a4987b936ba4b9b8b7fefe06
-
SHA1
4fa176f14c237c461b66ec19aa24fd4ea47fa1f8
-
SHA256
5a07439ecad1b2bc0fa2fe6b42c85a9fbfd81172b8d2a0b934c92e664ad9abb1
-
SHA512
9ab6f4d77711a6f2cb9e600642313319aa76cdf055be3f485b8121d44c762f5c3cfbc573f63cedbdf4b96fab64e53dfcd9309856327ba37bf5471c7126503d17
-
SSDEEP
6144:bRSjIXAnZQel5w7T4P5Kq+SMv0VGb7bDcllbk0q:g4AZrg7g9zVGkllbkB
Malware Config
Extracted
quasar
1.4.0.0
Office04
airport-forums.gl.at.ply.gg:20417
CjFw2DwFEbLLnL7ypo
-
encryption_key
uEA5Kpp3BoIvHdDLxJnW
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
-
Modifies WinLogon for persistence 2 TTPs 1 IoCs
-
Quasar RAT
Quasar is an open source Remote Access Tool.
-
Quasar family
-
Quasar payload 1 IoCs
-
Executes dropped EXE 1 IoCs
-
Adds Run key to start application 2 TTPs 1 IoCs
-
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
-
Suspicious use of AdjustPrivilegeToken 1 IoCs
-
Suspicious use of FindShellTrayWindow 64 IoCs
-
Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Client-built.exe"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\fortnite.exe"C:\fortnite.exe"2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
-
-
C:\Windows\explorer.exeexplorer.exe1⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
319KB
MD5c7b905a6f6ff947469f6a4605c2f9287
SHA1677cd5dc396f5f9cd588ea2527557cd0d0c8b026
SHA256439831c26088574ca4b8ecf637ba8dcf7c683f190256e08edd57e7e5cb3f54bb
SHA512d9c798ddc692f559a548871638cf015d73f2dce683d949507f7a6531a950d5d624676fb9742111d948afb7442144fffa87fdd1e1e224476bac20acfb93b5b68c
-
Filesize
436KB
MD522ba54cbf5c8a41d64acc90f467c1fb5
SHA15f61b932b5e151a4a460ada8e5ae8b268093a98f
SHA256c02c44870579dcd8208b140dd85066bd7a468934d49b227aa24e6e62b951c35d
SHA512cc62b9edaff1fc771e721acef84e854d93b5210f2148fa62dc4a0e3f3c8548e0686a8c250aad4292f380fdf4c50d746ef1309f3b9995518faa3d0fc207102295
-
Filesize
7.7MB
-
Filesize
5.6MB
-
Filesize
4KB
-
Filesize
408KB
-
Filesize
72KB
-
Filesize
240KB
-
Filesize
40KB
-
Filesize
4KB
-
Filesize
7.7MB
-
Filesize
584KB
-
Filesize
312KB
-
Filesize
7.7MB
-
Filesize
7.7MB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
464KB
-
Filesize
464KB