Analysis

  • max time kernel
    61s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/01/2023, 14:19

General

  • Target
    4c5e108e41465eeb47587613f5dec1d0.exe
  • Size 5.6MB
  • Sample230102-rmtywsef35
  • SHA256 f7f2fc80daff553378963bbbc6d3df712f3a01428af4666dda5e7612300f5b37
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 3 IoCs
  • Checks processor information in registry 2 TTPs 53 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4c5e108e41465eeb47587613f5dec1d0.exe
    "C:\Users\Admin\AppData\Local\Temp\4c5e108e41465eeb47587613f5dec1d0.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3544
    • C:\Users\Admin\AppData\Local\Temp\Proueehaoipr.exe
      "C:\Users\Admin\AppData\Local\Temp\Proueehaoipr.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1284
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 404
        3⤵
        • Program crash
        PID:4796
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#61
      2⤵
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:3308
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3544 -s 1156
      2⤵
      • Program crash
      PID:2112
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1284 -ip 1284
    1⤵
      PID:2776
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --no-first-run --no-default-browser-check --silent-launch --disable-backgrounding-occluded-windows --disable-background-timer-throttling --ran-launcher --profile-directory="Default"
      1⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4120
      • 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=0x104,0x108,0x10c,0xd8,0x110,0x7ffdf4804f50,0x7ffdf4804f60,0x7ffdf4804f70
        2⤵
          PID:3688
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1652,7630318876352535998,12781212374326067116,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1700 /prefetch:2
          2⤵
            PID:2968
          • 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=1652,7630318876352535998,12781212374326067116,131072 --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=1984 /prefetch:8
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:1496
          • 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=1652,7630318876352535998,12781212374326067116,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2344 /prefetch:8
            2⤵
              PID:2452
            • 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=1652,7630318876352535998,12781212374326067116,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3488 /prefetch:8
              2⤵
                PID:4580
              • C:\Windows\system32\WerFault.exe
                C:\Windows\system32\WerFault.exe -u -p 4120 -s 3572
                2⤵
                • Program crash
                PID:4356
            • C:\Windows\System32\CompPkgSrv.exe
              C:\Windows\System32\CompPkgSrv.exe -Embedding
              1⤵
                PID:1516
              • C:\Windows\system32\WerFault.exe
                C:\Windows\system32\WerFault.exe -pss -s 460 -p 4120 -ip 4120
                1⤵
                  PID:3980
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3544 -ip 3544
                  1⤵
                    PID:2900

                  Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

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                        Downloads

                        Proueehaoipr.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\Proueehaoipr.exe
                        • Size 1.4MB
                        • SHA256 11333749aa43d97da7da9a9f9589a50d8ec497aa931ed3c0cb6876f302be22e6
                        • MD5 SHA1 SHA512 SSDEEP

                        Proueehaoipr.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\Proueehaoipr.exe
                        • Size 1.4MB
                        • SHA256 11333749aa43d97da7da9a9f9589a50d8ec497aa931ed3c0cb6876f302be22e6
                        • MD5 SHA1 SHA512 SSDEEP

                        memory/1284-156-0x000000000227D000-0x00000000023AF000-memory.dmp

                        memory/1284-157-0x00000000023B0000-0x00000000024E3000-memory.dmp

                        memory/1284-158-0x0000000000400000-0x000000000057B000-memory.dmp

                        memory/3308-149-0x0000000003590000-0x00000000040E7000-memory.dmp

                        memory/3308-159-0x0000000003590000-0x00000000040E7000-memory.dmp

                        memory/3308-155-0x0000000004290000-0x00000000043D0000-memory.dmp

                        memory/3308-154-0x0000000004290000-0x00000000043D0000-memory.dmp

                        memory/3308-153-0x0000000003590000-0x00000000040E7000-memory.dmp

                        memory/3308-152-0x0000000001200000-0x0000000001C37000-memory.dmp

                        memory/3308-151-0x0000000004290000-0x00000000043D0000-memory.dmp

                        memory/3308-150-0x0000000004290000-0x00000000043D0000-memory.dmp

                        memory/3544-146-0x00000000080C0000-0x0000000008200000-memory.dmp

                        memory/3544-142-0x00000000080C0000-0x0000000008200000-memory.dmp

                        memory/3544-147-0x0000000007310000-0x0000000007E67000-memory.dmp

                        memory/3544-140-0x00000000080C0000-0x0000000008200000-memory.dmp

                        memory/3544-145-0x00000000080C0000-0x0000000008200000-memory.dmp

                        memory/3544-144-0x00000000080C0000-0x0000000008200000-memory.dmp

                        memory/3544-143-0x00000000080C0000-0x0000000008200000-memory.dmp

                        memory/3544-132-0x000000000289C000-0x0000000002E09000-memory.dmp

                        memory/3544-139-0x00000000080C0000-0x0000000008200000-memory.dmp

                        memory/3544-138-0x0000000007310000-0x0000000007E67000-memory.dmp

                        memory/3544-134-0x0000000000400000-0x00000000009C0000-memory.dmp

                        memory/3544-141-0x00000000080C0000-0x0000000008200000-memory.dmp

                        memory/3544-133-0x0000000002E10000-0x00000000033CE000-memory.dmp

                        memory/3544-161-0x0000000000400000-0x00000000009C0000-memory.dmp

                        memory/3544-162-0x0000000007310000-0x0000000007E67000-memory.dmp

                        memory/3544-163-0x0000000000400000-0x00000000009C0000-memory.dmp