Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/04/2024, 17:38

General

  • Target
    Quasar.exe
  • Size 1.2MB
  • Sample240415-v7vmpscb94
  • SHA256 43315abb9c8be9a39782bd8694a7ea9f16a867500dc804454d04b8bf2c15c51e
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 55 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quasar.exe
    "C:\Users\Admin\AppData\Local\Temp\Quasar.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4196
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:3880
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --default-search-provider=? --out-pipe-name=MSEdgeDefault2c102987h1163h42b8hbc92he53c7b74ffd2
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:972
    • 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=0x120,0x124,0x128,0xfc,0x12c,0x7ff89dd146f8,0x7ff89dd14708,0x7ff89dd14718
      2⤵
        PID:3668
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2180,7527433134083273201,7561899366194741140,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2192 /prefetch:2
        2⤵
          PID:2248
        • 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=2180,7527433134083273201,7561899366194741140,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2464 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4576
        • 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=2180,7527433134083273201,7561899366194741140,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2928 /prefetch:8
          2⤵
            PID:632
        • C:\Windows\System32\CompPkgSrv.exe
          C:\Windows\System32\CompPkgSrv.exe -Embedding
          1⤵
            PID:4952
          • C:\Windows\System32\CompPkgSrv.exe
            C:\Windows\System32\CompPkgSrv.exe -Embedding
            1⤵
              PID:2284
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DisplayEnhancementService
              1⤵
                PID:3468
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe"
                1⤵
                • Enumerates system info in registry
                • Modifies data under HKEY_USERS
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SendNotifyMessage
                PID:4876
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=110.0.5481.104 --initial-client-data=0x11c,0x120,0x124,0xf8,0x128,0x7ff89ed3ab58,0x7ff89ed3ab68,0x7ff89ed3ab78
                  2⤵
                    PID:924
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1784 --field-trial-handle=1944,i,8231670591515344812,15829485942628079871,131072 /prefetch:2
                    2⤵
                      PID:544
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2192 --field-trial-handle=1944,i,8231670591515344812,15829485942628079871,131072 /prefetch:8
                      2⤵
                        PID:4448
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=2236 --field-trial-handle=1944,i,8231670591515344812,15829485942628079871,131072 /prefetch:8
                        2⤵
                          PID:1500
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-chrome-cart --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3176 --field-trial-handle=1944,i,8231670591515344812,15829485942628079871,131072 /prefetch:1
                          2⤵
                            PID:920
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-chrome-cart --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3204 --field-trial-handle=1944,i,8231670591515344812,15829485942628079871,131072 /prefetch:1
                            2⤵
                              PID:404
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-chrome-cart --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4240 --field-trial-handle=1944,i,8231670591515344812,15829485942628079871,131072 /prefetch:1
                              2⤵
                                PID:412
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4532 --field-trial-handle=1944,i,8231670591515344812,15829485942628079871,131072 /prefetch:8
                                2⤵
                                  PID:1740
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4672 --field-trial-handle=1944,i,8231670591515344812,15829485942628079871,131072 /prefetch:8
                                  2⤵
                                    PID:4220
                                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4796 --field-trial-handle=1944,i,8231670591515344812,15829485942628079871,131072 /prefetch:8
                                    2⤵
                                      PID:4976
                                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4192 --field-trial-handle=1944,i,8231670591515344812,15829485942628079871,131072 /prefetch:8
                                      2⤵
                                        PID:5112
                                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4644 --field-trial-handle=1944,i,8231670591515344812,15829485942628079871,131072 /prefetch:8
                                        2⤵
                                          PID:2772
                                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4876 --field-trial-handle=1944,i,8231670591515344812,15829485942628079871,131072 /prefetch:8
                                          2⤵
                                            PID:4632
                                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4716 --field-trial-handle=1944,i,8231670591515344812,15829485942628079871,131072 /prefetch:8
                                            2⤵
                                              PID:3588
                                          • C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe
                                            "C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe"
                                            1⤵
                                              PID:2704

                                            Network

                                                  MITRE ATT&CK Enterprise v15

                                                  Replay Monitor

                                                  Loading Replay Monitor...

                                                  Downloads

                                                  Network Persistent State

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                                  • Size 1KB
                                                  • SHA256 d7a0b998e665b37d8d15f2708d30af362aaaead3caf13d85383644c7dec01b3e
                                                  • MD5 SHA1 SHA512

                                                  SCT Auditing Pending Reports

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports
                                                  • Size 2B
                                                  • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                                                  • MD5 SHA1 SHA512

                                                  TransportSecurity

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                                  • Size 356B
                                                  • SHA256 ef2a28fa934ee465e1f8ff687afc47cc770f6bfb7d82744e88b9f31c7f2821a0
                                                  • MD5 SHA1 SHA512

                                                  Preferences

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                                  • Size 6KB
                                                  • SHA256 7e0a961f324ad99be9f7cf96ca2c6fa8bff60e30143a83766c5492fe8946498f
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  Secure Preferences

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                                  • Size 16KB
                                                  • SHA256 f2972ff6be75887361e4ddcc79d920e37b959728205d89a43a75da122718b82f
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  Local State

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                                  • Size 250KB
                                                  • SHA256 9a0e2a162a2b9f4788b19454922facda686b16f26af4a4dd648002eb797d7a55
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  data_1

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\ShaderCache\data_1
                                                  • Size 264KB
                                                  • SHA256 b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  settings.dat

                                                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                                  • Size 152B
                                                  • SHA256 b92c19f079ef5948cb58654ce76f582a480a82cddc5083764ed7f1eac27b8d01
                                                  • MD5 SHA1 SHA512

                                                  Preferences

                                                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                                  • Size 5KB
                                                  • SHA256 5e4f1c8eeb24a0e1959b201b60a220dd94b260e9a6d80606a743964b9144277d
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  Local State

                                                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                                  • Size 8KB
                                                  • SHA256 43d7f87b044a8d3b8ce130a7e6bf5fd2041c3f606aa8e307b2c7afb77ca2d9cf
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  memory/3880-6-0x00000166C87D0000-0x00000166C87D1000-memory.dmp

                                                  memory/3880-10-0x00000166C87D0000-0x00000166C87D1000-memory.dmp

                                                  memory/3880-16-0x00000166C87D0000-0x00000166C87D1000-memory.dmp

                                                  memory/3880-14-0x00000166C87D0000-0x00000166C87D1000-memory.dmp

                                                  memory/3880-13-0x00000166C87D0000-0x00000166C87D1000-memory.dmp

                                                  memory/3880-12-0x00000166C87D0000-0x00000166C87D1000-memory.dmp

                                                  memory/3880-11-0x00000166C87D0000-0x00000166C87D1000-memory.dmp

                                                  memory/3880-15-0x00000166C87D0000-0x00000166C87D1000-memory.dmp

                                                  memory/3880-4-0x00000166C87D0000-0x00000166C87D1000-memory.dmp

                                                  memory/3880-5-0x00000166C87D0000-0x00000166C87D1000-memory.dmp

                                                  memory/4196-0-0x000001F3CC850000-0x000001F3CC988000-memory.dmp

                                                  memory/4196-3-0x00007FF89EBE0000-0x00007FF89F6A1000-memory.dmp

                                                  memory/4196-2-0x000001F3E6FD0000-0x000001F3E6FE0000-memory.dmp

                                                  memory/4196-1-0x00007FF89EBE0000-0x00007FF89F6A1000-memory.dmp