Analysis

  • max time kernel
    141s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/08/2024, 02:31

General

  • Target
    e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe
  • Size 491KB
  • Sample240821-cz2f6szcmp
  • SHA256 e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • quasar

Version
  • 1.3.0.0

Botnet
  • Moasa

C2
  • neji.w0rld.ga:7777

Mutex
  • DerPeeekshsaPjTQXfNVygAvPX

Attributes
  • encryption_key

    3xF1E8vK84C8qCe7p0kkroBeQvMxMIry

  • install_name

    Client.exe

  • log_directory

    Harsh

  • reconnect_delay

    2000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Checks computer location settings 2 TTPs 7 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Looks up external IP address via web service 3 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 Network Configuration Discovery: Internet Connection Discovery 1 TTPs 7 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe
    "C:\Users\Admin\AppData\Local\Temp\e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3200
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\u3gMcA6ctNxE.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3584
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:1712
        • C:\Windows\system32\PING.EXE
          ping -n 10 localhost
          3⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:1588
        • C:\Users\Admin\AppData\Local\Temp\e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe
          "C:\Users\Admin\AppData\Local\Temp\e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe"
          3⤵
          • Checks computer location settings
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4020
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ti6FqzxJhTYY.bat" "
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:208
            • C:\Windows\system32\chcp.com
              chcp 65001
              5⤵
                PID:3040
              • C:\Windows\system32\PING.EXE
                ping -n 10 localhost
                5⤵
                • System Network Configuration Discovery: Internet Connection Discovery
                • Runs ping.exe
                PID:1376
              • C:\Users\Admin\AppData\Local\Temp\e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe
                "C:\Users\Admin\AppData\Local\Temp\e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe"
                5⤵
                • Checks computer location settings
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:1464
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\70DpnzuAJ2uo.bat" "
                  6⤵
                  • Suspicious use of WriteProcessMemory
                  PID:4288
                  • C:\Windows\system32\chcp.com
                    chcp 65001
                    7⤵
                      PID:2888
                    • C:\Windows\system32\PING.EXE
                      ping -n 10 localhost
                      7⤵
                      • System Network Configuration Discovery: Internet Connection Discovery
                      • Runs ping.exe
                      PID:536
                    • C:\Users\Admin\AppData\Local\Temp\e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe
                      "C:\Users\Admin\AppData\Local\Temp\e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe"
                      7⤵
                      • Checks computer location settings
                      • Suspicious use of AdjustPrivilegeToken
                      • Suspicious use of SetWindowsHookEx
                      • Suspicious use of WriteProcessMemory
                      PID:2300
                      • C:\Windows\system32\cmd.exe
                        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\qW3dfK1an2yH.bat" "
                        8⤵
                        • Suspicious use of WriteProcessMemory
                        PID:5100
                        • C:\Windows\system32\chcp.com
                          chcp 65001
                          9⤵
                            PID:3548
                          • C:\Windows\system32\PING.EXE
                            ping -n 10 localhost
                            9⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2100
                          • C:\Users\Admin\AppData\Local\Temp\e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe
                            "C:\Users\Admin\AppData\Local\Temp\e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe"
                            9⤵
                            • Checks computer location settings
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of SetWindowsHookEx
                            • Suspicious use of WriteProcessMemory
                            PID:1484
                            • C:\Windows\system32\cmd.exe
                              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\N7jjtkpmpFIH.bat" "
                              10⤵
                              • Suspicious use of WriteProcessMemory
                              PID:3028
                              • C:\Windows\system32\chcp.com
                                chcp 65001
                                11⤵
                                  PID:2040
                                • C:\Windows\system32\PING.EXE
                                  ping -n 10 localhost
                                  11⤵
                                  • System Network Configuration Discovery: Internet Connection Discovery
                                  • Runs ping.exe
                                  PID:5116
                                • C:\Users\Admin\AppData\Local\Temp\e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe
                                  "C:\Users\Admin\AppData\Local\Temp\e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe"
                                  11⤵
                                  • Checks computer location settings
                                  • Suspicious use of AdjustPrivilegeToken
                                  • Suspicious use of WriteProcessMemory
                                  PID:1488
                                  • C:\Windows\system32\cmd.exe
                                    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\68Hlb8NrKauU.bat" "
                                    12⤵
                                    • Suspicious use of WriteProcessMemory
                                    PID:3908
                                    • C:\Windows\system32\chcp.com
                                      chcp 65001
                                      13⤵
                                        PID:3828
                                      • C:\Windows\system32\PING.EXE
                                        ping -n 10 localhost
                                        13⤵
                                        • System Network Configuration Discovery: Internet Connection Discovery
                                        • Runs ping.exe
                                        PID:1904
                                      • C:\Users\Admin\AppData\Local\Temp\e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe
                                        "C:\Users\Admin\AppData\Local\Temp\e7b175e7b4e579fe314e56c1a195a937c0e7780fbc0f3def13b7dae08560000f.exe"
                                        13⤵
                                        • Checks computer location settings
                                        • Suspicious use of AdjustPrivilegeToken
                                        • Suspicious use of WriteProcessMemory
                                        PID:724
                                        • C:\Windows\system32\cmd.exe
                                          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JvemopIEjFAz.bat" "
                                          14⤵
                                          • Suspicious use of WriteProcessMemory
                                          PID:4496
                                          • C:\Windows\system32\chcp.com
                                            chcp 65001
                                            15⤵
                                              PID:2572
                                            • C:\Windows\system32\PING.EXE
                                              ping -n 10 localhost
                                              15⤵
                                              • System Network Configuration Discovery: Internet Connection Discovery
                                              • Runs ping.exe
                                              PID:2908

                Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

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                      Downloads

                      68Hlb8NrKauU.bat

                      • Path C:\Users\Admin\AppData\Local\Temp\68Hlb8NrKauU.bat
                      • Size 261B
                      • SHA256 04d55e2557207bbdca2382b9e6a2797945e900d039fe5187afd227c14444fe64
                      • MD5 SHA1 SHA512

                      70DpnzuAJ2uo.bat

                      • Path C:\Users\Admin\AppData\Local\Temp\70DpnzuAJ2uo.bat
                      • Size 261B
                      • SHA256 946566f5a2f65610b3a2b0a0bb0a562d183b8d3e25ca3ab97a7c815362bd7483
                      • MD5 SHA1 SHA512

                      JvemopIEjFAz.bat

                      • Path C:\Users\Admin\AppData\Local\Temp\JvemopIEjFAz.bat
                      • Size 261B
                      • SHA256 108b86ede3fcbf4030fcc45a59a28923a1026698919c4ae8dc905a189b325419
                      • MD5 SHA1 SHA512

                      N7jjtkpmpFIH.bat

                      • Path C:\Users\Admin\AppData\Local\Temp\N7jjtkpmpFIH.bat
                      • Size 261B
                      • SHA256 28ff36c713026bda287130c4d53f88b0bdd017ea1422bc1f15b3c6baf11bbe61
                      • MD5 SHA1 SHA512

                      qW3dfK1an2yH.bat

                      • Path C:\Users\Admin\AppData\Local\Temp\qW3dfK1an2yH.bat
                      • Size 261B
                      • SHA256 5e04c18d53b5a237db0ad86c0ec992fb74d470fe0419fcf8dcb2c6399b3d3b7e
                      • MD5 SHA1 SHA512

                      ti6FqzxJhTYY.bat

                      • Path C:\Users\Admin\AppData\Local\Temp\ti6FqzxJhTYY.bat
                      • Size 261B
                      • SHA256 f0b1e6774b26ac1f41b14aedf4d823bf28bbfc830a4bdf8806cdc892753541e4
                      • MD5 SHA1 SHA512

                      u3gMcA6ctNxE.bat

                      • Path C:\Users\Admin\AppData\Local\Temp\u3gMcA6ctNxE.bat
                      • Size 261B
                      • SHA256 60963e8a62d93727ac1198c12afa6317e8d21b3e07ca42f0ca432f8605da0ada
                      • MD5 SHA1 SHA512

                      08-21-2024

                      • Path C:\Users\Admin\AppData\Roaming\Harsh\08-21-2024
                      • Size 224B
                      • SHA256 90f2e799efb7f5123a89120b5774925aa3aa0fe772c6f2738f86e84902257a36
                      • MD5 SHA1 SHA512

                      08-21-2024

                      • Path C:\Users\Admin\AppData\Roaming\Harsh\08-21-2024
                      • Size 224B
                      • SHA256 6bf3396645c196282b47bfa917a301c24d6dcf860ed377bd2bfcad8630bf3a52
                      • MD5 SHA1 SHA512

                      08-21-2024

                      • Path C:\Users\Admin\AppData\Roaming\Harsh\08-21-2024
                      • Size 224B
                      • SHA256 a6f482804beccf855f133fe40ead45271a93609fcdeb96c49a5c4fda705775c5
                      • MD5 SHA1 SHA512

                      memory/3200-6-0x0000000001030000-0x0000000001042000-memory.dmp

                      memory/3200-7-0x000000001B440000-0x000000001B47C000-memory.dmp

                      memory/3200-1-0x0000000000670000-0x00000000006F2000-memory.dmp

                      memory/3200-2-0x0000000000EB0000-0x0000000000F0E000-memory.dmp

                      memory/3200-9-0x000000001C290000-0x000000001C342000-memory.dmp

                      memory/3200-3-0x00007FF9052A0000-0x00007FF905D61000-memory.dmp

                      memory/3200-8-0x000000001B8E0000-0x000000001B930000-memory.dmp

                      memory/3200-15-0x00007FF9052A0000-0x00007FF905D61000-memory.dmp

                      memory/3200-0-0x00007FF9052A3000-0x00007FF9052A5000-memory.dmp

                      memory/3200-5-0x00007FF9052A0000-0x00007FF905D61000-memory.dmp

                      memory/3200-4-0x0000000000FA0000-0x000000000102C000-memory.dmp

                      memory/4020-22-0x00007FF9052A0000-0x00007FF905D61000-memory.dmp

                      memory/4020-17-0x00007FF9052A0000-0x00007FF905D61000-memory.dmp

                      memory/4020-16-0x00007FF9052A0000-0x00007FF905D61000-memory.dmp