Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    08/07/2021, 16:15

General

  • Target
    90440985e96dd8aaa439fa7dedba2499.exe
  • Size 2.8MB
  • Sample210708-vv8lca59nn
  • SHA256 9fbdcf044aba61ae6c0678b5f83fc4bd8b589ba3a4fd12a5bef53e2ead494eed
  • MD5 SHA1 SHA512
Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 41 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\90440985e96dd8aaa439fa7dedba2499.exe
    "C:\Users\Admin\AppData\Local\Temp\90440985e96dd8aaa439fa7dedba2499.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4060
    • C:\Users\Admin\Documents\ClientHost_new.exe
      "C:\Users\Admin\Documents\ClientHost_new.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2268
      • C:\Users\Admin\Documents\ClientHost.exe
        "C:\Users\Admin\Documents\ClientHost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2788
        • C:\Windows\System32\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /tn "Videocard Service" /tr "C:\Users\Admin\Documents\ClientHost.exe" /f
          4⤵
          • Creates scheduled task(s)
          PID:1128
        • C:\Users\Admin\Documents\chromedriver.exe
          "C:\Users\Admin\Documents\chromedriver.exe" --port=54242
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:632
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-backgrounding-occluded-windows --disable-blink-features=AutomationControlled --disable-client-side-phishing-detection --disable-default-apps --disable-dev-shm-usage --disable-extensions --disable-gpu --disable-hang-monitor --disable-popup-blocking --disable-prompt-on-repost --disable-sync --enable-blink-features=ShadowDOMV0 --enable-logging --log-level=0 --mute-audio --no-first-run --no-sandbox --no-service-autorun --password-store=basic --remote-debugging-port=0 --test-type=webdriver --use-mock-keychain --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data"
            5⤵
            • Enumerates system info in registry
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of WriteProcessMemory
            PID:3716
            • 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=89.0.4389.114 --initial-client-data=0xdc,0xe0,0xe4,0xb8,0xe8,0x7ffaa2fc4f50,0x7ffaa2fc4f60,0x7ffaa2fc4f70
              6⤵
                PID:2000
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --no-sandbox --enable-logging --log-level=0 --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --use-gl=swiftshader-webgl --enable-logging --log-level=0 --mojo-platform-channel-handle=1560 /prefetch:2
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:3640
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --lang=en-US --service-sandbox-type=network --no-sandbox --enable-logging --log-level=0 --mute-audio --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --enable-logging --log-level=0 --mojo-platform-channel-handle=1732 /prefetch:8
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:2272
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --lang=en-US --service-sandbox-type=utility --no-sandbox --enable-logging --log-level=0 --mute-audio --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --enable-logging --log-level=0 --mojo-platform-channel-handle=2088 /prefetch:8
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:3960
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-sandbox --enable-logging --log-level=0 --remote-debugging-port=0 --test-type=webdriver --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --disable-gpu-compositing --enable-blink-features=ShadowDOMV0 --disable-blink-features=AutomationControlled --lang=en-US --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2464 /prefetch:1
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:3540
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-sandbox --enable-logging --log-level=0 --remote-debugging-port=0 --test-type=webdriver --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --disable-gpu-compositing --enable-blink-features=ShadowDOMV0 --disable-blink-features=AutomationControlled --lang=en-US --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2496 /prefetch:1
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:2772
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-sandbox --enable-logging --log-level=0 --remote-debugging-port=0 --test-type=webdriver --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --disable-gpu-compositing --enable-blink-features=ShadowDOMV0 --disable-blink-features=AutomationControlled --lang=en-US --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3104 /prefetch:1
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:4180
              • 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 --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --lang=en-US --service-sandbox-type=utility --no-sandbox --enable-logging --log-level=0 --mute-audio --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --enable-logging --log-level=0 --mojo-platform-channel-handle=3860 /prefetch:8
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:4292
              • 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 --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --lang=en-US --service-sandbox-type=utility --no-sandbox --enable-logging --log-level=0 --mute-audio --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --enable-logging --log-level=0 --mojo-platform-channel-handle=3908 /prefetch:8
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:4304
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-sandbox --enable-logging --log-level=0 --remote-debugging-port=0 --test-type=webdriver --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --disable-gpu-compositing --enable-blink-features=ShadowDOMV0 --disable-blink-features=AutomationControlled --lang=en-US --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3932 /prefetch:1
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:4392
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --lang=en-US --service-sandbox-type=none --no-sandbox --enable-logging --log-level=0 --mute-audio --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --enable-logging --log-level=0 --mojo-platform-channel-handle=4496 /prefetch:8
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:4568
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --lang=en-US --service-sandbox-type=none --no-sandbox --enable-logging --log-level=0 --mute-audio --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --enable-logging --log-level=0 --mojo-platform-channel-handle=3948 /prefetch:8
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:4624
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --lang=en-US --service-sandbox-type=none --no-sandbox --enable-logging --log-level=0 --mute-audio --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --enable-logging --log-level=0 --mojo-platform-channel-handle=1496 /prefetch:8
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:4788
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --lang=en-US --service-sandbox-type=none --no-sandbox --enable-logging --log-level=0 --mute-audio --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --enable-logging --log-level=0 --mojo-platform-channel-handle=2164 /prefetch:8
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:4872
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --lang=en-US --service-sandbox-type=none --no-sandbox --enable-logging --log-level=0 --mute-audio --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --enable-logging --log-level=0 --mojo-platform-channel-handle=2328 /prefetch:8
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:4936
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --lang=en-US --service-sandbox-type=utility --no-sandbox --enable-logging --log-level=0 --mute-audio --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --enable-logging --log-level=0 --mojo-platform-channel-handle=2128 /prefetch:8
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:5000
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --lang=en-US --service-sandbox-type=utility --no-sandbox --enable-logging --log-level=0 --mute-audio --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --enable-logging --log-level=0 --mojo-platform-channel-handle=4320 /prefetch:8
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:5056
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --lang=en-US --service-sandbox-type=utility --no-sandbox --enable-logging --log-level=0 --mute-audio --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --enable-logging --log-level=0 --mojo-platform-channel-handle=1644 /prefetch:8
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:5112
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=1444,6737206597028501280,5574052810430720202,131072 --lang=en-US --service-sandbox-type=utility --no-sandbox --enable-logging --log-level=0 --mute-audio --user-data-dir="C:/Users/Admin/AppData/Local/Google/Chrome/User Data" --enable-logging --log-level=0 --mojo-platform-channel-handle=4456 /prefetch:8
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:4504
          • C:\Users\Admin\Documents\chromedriver.exe
            "C:\Users\Admin\Documents\chromedriver.exe" --port=54242
            4⤵
            • Executes dropped EXE
            PID:1376
    • C:\Users\Admin\Documents\ClientHost.exe
      C:\Users\Admin\Documents\ClientHost.exe
      1⤵
      • Executes dropped EXE
      PID:2248
    • C:\Users\Admin\Documents\ClientHost.exe
      C:\Users\Admin\Documents\ClientHost.exe
      1⤵
      • Executes dropped EXE
      PID:4700
    • C:\Users\Admin\Documents\ClientHost.exe
      C:\Users\Admin\Documents\ClientHost.exe
      1⤵
      • Executes dropped EXE
      PID:4320

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/2268-120-0x00000000004A0000-0x00000000004A1000-memory.dmp

          memory/2268-125-0x000000001B350000-0x000000001B352000-memory.dmp

          memory/2788-128-0x000000001BDB0000-0x000000001BDB2000-memory.dmp

          memory/2788-141-0x000000001C190000-0x000000001C191000-memory.dmp

          memory/4060-116-0x0000000000910000-0x0000000000912000-memory.dmp

          memory/4060-114-0x0000000000150000-0x0000000000151000-memory.dmp