Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/01/2025, 06:38

General

  • Target
    https://github.com/youvegotpwned/RedEngineCrack/releases/download/fivem/RedEngine.zip
  • Sample250107-hefa4ayncx

Malware Config

Extracted

Family
  • quasar

Version
  • 1.4.0

Botnet
  • TRAINING

C2
  • 185.241.208.185:16145

Mutex
  • 22073971-8d9a-4364-9916-abbb09ac9d8b

Attributes
  • encryption_key

    7A9A8376440E3257DB2B54403642F366A5FBE14A

  • install_name

    Starter Module.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Starter Module

  • subdirectory

    Modules

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 6 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • 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 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 25 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 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:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --start-maximized --single-argument https://github.com/youvegotpwned/RedEngineCrack/releases/download/fivem/RedEngine.zip
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3264
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffcb55646f8,0x7ffcb5564708,0x7ffcb5564718
      2⤵
        PID:3916
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1972,10212086155554014563,5907250065383178698,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1988 /prefetch:2
        2⤵
          PID:1304
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1972,10212086155554014563,5907250065383178698,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2248 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4000
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=1972,10212086155554014563,5907250065383178698,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2800 /prefetch:8
          2⤵
            PID:4252
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1972,10212086155554014563,5907250065383178698,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3348 /prefetch:1
            2⤵
              PID:2028
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1972,10212086155554014563,5907250065383178698,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3368 /prefetch:1
              2⤵
                PID:3420
              • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1972,10212086155554014563,5907250065383178698,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4752 /prefetch:8
                2⤵
                  PID:3660
                • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1972,10212086155554014563,5907250065383178698,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4752 /prefetch:8
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:2200
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1972,10212086155554014563,5907250065383178698,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5084 /prefetch:1
                  2⤵
                    PID:3044
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1972,10212086155554014563,5907250065383178698,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5312 /prefetch:1
                    2⤵
                      PID:1444
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1972,10212086155554014563,5907250065383178698,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4016 /prefetch:1
                      2⤵
                        PID:2344
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1972,10212086155554014563,5907250065383178698,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5332 /prefetch:1
                        2⤵
                          PID:5056
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_collections.mojom.CollectionsDataManager --field-trial-handle=1972,10212086155554014563,5907250065383178698,131072 --lang=en-US --service-sandbox-type=collections --mojo-platform-channel-handle=5912 /prefetch:8
                          2⤵
                            PID:2612
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1972,10212086155554014563,5907250065383178698,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5732 /prefetch:1
                            2⤵
                              PID:4340
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --field-trial-handle=1972,10212086155554014563,5907250065383178698,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5988 /prefetch:8
                              2⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:4452
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:1088
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:1676
                              • C:\Windows\System32\rundll32.exe
                                C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                1⤵
                                  PID:3092
                                • C:\Windows\system32\NOTEPAD.EXE
                                  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Downloads\RedEngine\Tutorial.txt
                                  1⤵
                                  • Opens file in notepad (likely ransom note)
                                  PID:4452
                                • C:\Users\Admin\Downloads\RedEngine\RedEngine.exe
                                  "C:\Users\Admin\Downloads\RedEngine\RedEngine.exe"
                                  1⤵
                                  • Drops file in System32 directory
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:3140
                                  • C:\Windows\SYSTEM32\schtasks.exe
                                    "schtasks" /create /tn "Starter Module" /sc ONLOGON /tr "C:\Users\Admin\Downloads\RedEngine\RedEngine.exe" /rl HIGHEST /f
                                    2⤵
                                    • Scheduled Task/Job: Scheduled Task
                                    PID:2868
                                  • C:\Windows\system32\Modules\Starter Module.exe
                                    "C:\Windows\system32\Modules\Starter Module.exe"
                                    2⤵
                                    • Executes dropped EXE
                                    • Drops file in System32 directory
                                    • Suspicious use of AdjustPrivilegeToken
                                    • Suspicious use of FindShellTrayWindow
                                    • Suspicious use of SendNotifyMessage
                                    • Suspicious use of SetWindowsHookEx
                                    PID:4328
                                    • C:\Windows\SYSTEM32\schtasks.exe
                                      "schtasks" /create /tn "Starter Module" /sc ONLOGON /tr "C:\Windows\system32\Modules\Starter Module.exe" /rl HIGHEST /f
                                      3⤵
                                      • Scheduled Task/Job: Scheduled Task
                                      PID:1084
                                • C:\Users\Admin\Downloads\RedEngine\RedEngine.exe
                                  "C:\Users\Admin\Downloads\RedEngine\RedEngine.exe"
                                  1⤵
                                  • Drops file in System32 directory
                                  • Suspicious behavior: EnumeratesProcesses
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:1708

                                Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

                                      Loading Replay Monitor...

                                      Downloads

                                      RedEngine.exe.log

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\RedEngine.exe.log
                                      • Size 1KB
                                      • SHA256 ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924
                                      • MD5 SHA1 SHA512

                                      settings.dat

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                      • Size 152B
                                      • SHA256 467b8cd4aacac66557712f9843023dcedefcc26efc746f3e44157bc8dac73812
                                      • MD5 SHA1 SHA512

                                      settings.dat

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                      • Size 152B
                                      • SHA256 d86eec91f295dfda8ed1c5fa99de426f2fe359282c7ebf67e3a40be739475d73
                                      • MD5 SHA1 SHA512

                                      Network Persistent State

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State
                                      • Size 265B
                                      • SHA256 fcea95cc39dc6c2a925f5aed739dbedaa405ee4ce127f535fcf1c751b2b8fb5d
                                      • MD5 SHA1 SHA512

                                      Preferences

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                      • Size 5KB
                                      • SHA256 2c7366a4af1678f4c9f5239b3fd274b62b0cdded027b0d14d409fd81f84c7d74
                                      • MD5 SHA1 SHA512 SSDEEP

                                      Preferences

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                      • Size 6KB
                                      • SHA256 f21c7fd1e82314d39085ae4d168838476bfd0cf8eb19c2f284c8034a88646496
                                      • MD5 SHA1 SHA512 SSDEEP

                                      CURRENT

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT
                                      • Size 16B
                                      • SHA256 0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd
                                      • MD5 SHA1 SHA512

                                      Local State

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                      • Size 10KB
                                      • SHA256 b26965f8cf3738d6affdf92853b65791d4fc772572448c37a1a178c8865e8982
                                      • MD5 SHA1 SHA512 SSDEEP

                                      Local State

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                      • Size 10KB
                                      • SHA256 3c50d900def421f6bb42497a6f8a11552337c34099c5968ee468fbadbbc45a86
                                      • MD5 SHA1 SHA512 SSDEEP

                                      RedEngine.zip

                                      • Path C:\Users\Admin\Downloads\RedEngine.zip
                                      • Size 773KB
                                      • SHA256 fc767ffc7f989455ce6aa641b29c14510d8de441cb423c211421e41d92febc10
                                      • MD5 SHA1 SHA512 SSDEEP

                                      Starter Module.exe

                                      • Path C:\Windows\System32\Modules\Starter Module.exe
                                      • Size 502KB
                                      • SHA256 67e35ca53e1ee18113207c2edf4b165ae9158cfed151e08bac627327f9c60f21
                                      • MD5 SHA1 SHA512 SSDEEP

                                      memory/3140-94-0x0000000000380000-0x0000000000404000-memory.dmp

                                      memory/4328-100-0x000000001C680000-0x000000001C6D0000-memory.dmp

                                      memory/4328-101-0x000000001C790000-0x000000001C842000-memory.dmp