Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    28/06/2024, 23:56

General

  • Target
    Neo.exe
  • Size 348KB
  • Sample240628-3za74awalg
  • SHA256 cdd44caceb600c73a01b95c572142a59a35a23b1fb8e8e70cf920140366d3d09
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • quasar

Version
  • 1.1.0

Botnet
  • Slave

C2
  • runderscore00-42512.portmap.io:42512

Mutex
  • QSR_MUTEX_aYgVTolyJfnSo2kPQj

Attributes
  • encryption_key

    PK7SpR1WESSqHBwmTfVi

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Looks up external IP address via web service 8 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).

  • Program crash 6 IoCs
  • Runs ping.exe 1 TTPs 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Neo.exe
    "C:\Users\Admin\AppData\Local\Temp\Neo.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4404
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\auqSeYGAeAWw.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2308
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
          PID:1692
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 10 localhost
          3⤵
          • Runs ping.exe
          PID:568
        • C:\Users\Admin\AppData\Local\Temp\Neo.exe
          "C:\Users\Admin\AppData\Local\Temp\Neo.exe"
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2556
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XTKZCmWdLsmp.bat" "
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:3088
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              5⤵
                PID:4048
              • C:\Windows\SysWOW64\PING.EXE
                ping -n 10 localhost
                5⤵
                • Runs ping.exe
                PID:4276
              • C:\Users\Admin\AppData\Local\Temp\Neo.exe
                "C:\Users\Admin\AppData\Local\Temp\Neo.exe"
                5⤵
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:3660
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\0oqyBKgNL7xW.bat" "
                  6⤵
                  • Suspicious use of WriteProcessMemory
                  PID:480
                  • C:\Windows\SysWOW64\chcp.com
                    chcp 65001
                    7⤵
                      PID:3444
                    • C:\Windows\SysWOW64\PING.EXE
                      ping -n 10 localhost
                      7⤵
                      • Runs ping.exe
                      PID:2700
                    • C:\Users\Admin\AppData\Local\Temp\Neo.exe
                      "C:\Users\Admin\AppData\Local\Temp\Neo.exe"
                      7⤵
                      • Suspicious use of AdjustPrivilegeToken
                      • Suspicious use of SetWindowsHookEx
                      • Suspicious use of WriteProcessMemory
                      PID:4480
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1wEPOxth9gmu.bat" "
                        8⤵
                        • Suspicious use of WriteProcessMemory
                        PID:4928
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          9⤵
                            PID:2540
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            9⤵
                            • Runs ping.exe
                            PID:4896
                          • C:\Users\Admin\AppData\Local\Temp\Neo.exe
                            "C:\Users\Admin\AppData\Local\Temp\Neo.exe"
                            9⤵
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of SetWindowsHookEx
                            • Suspicious use of WriteProcessMemory
                            PID:420
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\0ZS1qOVwGHhN.bat" "
                              10⤵
                              • Suspicious use of WriteProcessMemory
                              PID:2368
                              • C:\Windows\SysWOW64\chcp.com
                                chcp 65001
                                11⤵
                                  PID:3560
                                • C:\Windows\SysWOW64\PING.EXE
                                  ping -n 10 localhost
                                  11⤵
                                  • Runs ping.exe
                                  PID:1668
                                • C:\Users\Admin\AppData\Local\Temp\Neo.exe
                                  "C:\Users\Admin\AppData\Local\Temp\Neo.exe"
                                  11⤵
                                  • Suspicious use of AdjustPrivilegeToken
                                  • Suspicious use of SetWindowsHookEx
                                  • Suspicious use of WriteProcessMemory
                                  PID:964
                                  • C:\Windows\SysWOW64\cmd.exe
                                    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\IJScb3OD73vl.bat" "
                                    12⤵
                                    • Suspicious use of WriteProcessMemory
                                    PID:3640
                                    • C:\Windows\SysWOW64\chcp.com
                                      chcp 65001
                                      13⤵
                                        PID:856
                                      • C:\Windows\SysWOW64\PING.EXE
                                        ping -n 10 localhost
                                        13⤵
                                        • Runs ping.exe
                                        PID:4672
                                      • C:\Users\Admin\AppData\Local\Temp\Neo.exe
                                        "C:\Users\Admin\AppData\Local\Temp\Neo.exe"
                                        13⤵
                                        • Suspicious use of AdjustPrivilegeToken
                                        PID:5008
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -u -p 964 -s 1732
                                      12⤵
                                      • Program crash
                                      PID:4004
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -u -p 420 -s 2288
                                  10⤵
                                  • Program crash
                                  PID:4812
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4480 -s 1740
                              8⤵
                              • Program crash
                              PID:4028
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3660 -s 2280
                          6⤵
                          • Program crash
                          PID:3244
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 2556 -s 2280
                      4⤵
                      • Program crash
                      PID:2220
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4404 -s 1764
                  2⤵
                  • Program crash
                  PID:4744
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4404 -ip 4404
                1⤵
                  PID:1152
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2556 -ip 2556
                  1⤵
                    PID:2332
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3660 -ip 3660
                    1⤵
                      PID:4160
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4480 -ip 4480
                      1⤵
                        PID:3960
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 420 -ip 420
                        1⤵
                          PID:1440
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 964 -ip 964
                          1⤵
                            PID:240

                          Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

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                                Downloads

                                0ZS1qOVwGHhN.bat

                                • Path C:\Users\Admin\AppData\Local\Temp\0ZS1qOVwGHhN.bat
                                • Size 200B
                                • SHA256 36b478bf8567956f76e95a4cd3ffa97bcd1b6dac3d7832a7f4075808f06acab7
                                • MD5 SHA1 SHA512

                                0oqyBKgNL7xW.bat

                                • Path C:\Users\Admin\AppData\Local\Temp\0oqyBKgNL7xW.bat
                                • Size 200B
                                • SHA256 598672fc7c458a69cd035cd41ecd4c969f805db753fcd2966c121f5efc15d63e
                                • MD5 SHA1 SHA512

                                1wEPOxth9gmu.bat

                                • Path C:\Users\Admin\AppData\Local\Temp\1wEPOxth9gmu.bat
                                • Size 200B
                                • SHA256 b39db3319e121ec18ae6a36f7d55861adc63c9b34260c93152c3fd4465d48818
                                • MD5 SHA1 SHA512

                                IJScb3OD73vl.bat

                                • Path C:\Users\Admin\AppData\Local\Temp\IJScb3OD73vl.bat
                                • Size 200B
                                • SHA256 c49685f70b806c37faf748ddff9ecc4a8ebe84feea3a54c4f5dc5aacb5d0c906
                                • MD5 SHA1 SHA512

                                XTKZCmWdLsmp.bat

                                • Path C:\Users\Admin\AppData\Local\Temp\XTKZCmWdLsmp.bat
                                • Size 200B
                                • SHA256 f30ae98f4395706f6d114b535812fdc062f4f81c8a3afcde790a385cdc76dc7a
                                • MD5 SHA1 SHA512

                                auqSeYGAeAWw.bat

                                • Path C:\Users\Admin\AppData\Local\Temp\auqSeYGAeAWw.bat
                                • Size 200B
                                • SHA256 32e9c4e8d227db053b9d6f553c02cea860bd6627481341fdfb5fc3c63e1ef4fb
                                • MD5 SHA1 SHA512

                                06-28-2024

                                • Path C:\Users\Admin\AppData\Roaming\Logs\06-28-2024
                                • Size 224B
                                • SHA256 4d79c6f488370faa00a2d038f1aeb6466e1ba229c595ecc071a5995f94c3d805
                                • MD5 SHA1 SHA512

                                06-28-2024

                                • Path C:\Users\Admin\AppData\Roaming\Logs\06-28-2024
                                • Size 224B
                                • SHA256 a241ad4d53706d0137b934b1f54773c4cc2293eadfe27aeb01b48d0750a99a1b
                                • MD5 SHA1 SHA512

                                06-28-2024

                                • Path C:\Users\Admin\AppData\Roaming\Logs\06-28-2024
                                • Size 224B
                                • SHA256 0992844e01b266de5fe84376ad6b224e3c6de02c033222cbe5e56aec60096c3e
                                • MD5 SHA1 SHA512

                                06-28-2024

                                • Path C:\Users\Admin\AppData\Roaming\Logs\06-28-2024
                                • Size 224B
                                • SHA256 22b6daa4c6b7326d66503134cd9fa30a832309ab4e4b2a30c52a9e1fbc5dfc08
                                • MD5 SHA1 SHA512

                                06-28-2024

                                • Path C:\Users\Admin\AppData\Roaming\Logs\06-28-2024
                                • Size 224B
                                • SHA256 3f8d488cc4df3f050ca7af1d5b22ad1aa0d1c5ea82b78a22acc999521c17a50c
                                • MD5 SHA1 SHA512

                                memory/2556-16-0x00000000747F0000-0x0000000074FA1000-memory.dmp

                                memory/2556-24-0x00000000747F0000-0x0000000074FA1000-memory.dmp

                                memory/2556-17-0x00000000747F0000-0x0000000074FA1000-memory.dmp

                                memory/4404-7-0x00000000747FE000-0x00000000747FF000-memory.dmp

                                memory/4404-10-0x0000000006F00000-0x0000000006F0A000-memory.dmp

                                memory/4404-15-0x00000000747F0000-0x0000000074FA1000-memory.dmp

                                memory/4404-8-0x00000000747F0000-0x0000000074FA1000-memory.dmp

                                memory/4404-0-0x00000000747FE000-0x00000000747FF000-memory.dmp

                                memory/4404-6-0x0000000006420000-0x0000000006432000-memory.dmp

                                memory/4404-5-0x0000000005700000-0x0000000005766000-memory.dmp

                                memory/4404-4-0x00000000747F0000-0x0000000074FA1000-memory.dmp

                                memory/4404-3-0x00000000057A0000-0x0000000005832000-memory.dmp

                                memory/4404-2-0x0000000005C30000-0x00000000061D6000-memory.dmp

                                memory/4404-1-0x0000000000D20000-0x0000000000D7E000-memory.dmp