Analysis

  • max time kernel
    143s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12-11-2024 04:01

General

  • Target

    file.exe

  • Size

    4.2MB

  • MD5

    66dcc9e242797c6d7a87af1ace2413b4

  • SHA1

    dff4e116ef0ec6c037fe07e14835f6bef66506b9

  • SHA256

    63211e3dd52704fe12941578d10bb835b428e78d0829ef701a76e444f459ae3f

  • SHA512

    ce9ff902e4ed34ee0c59f00b03419e38d3dc56ac9642f89d2ff4ce0dc1c2c02fea2220735a68044d38c189034d46d04dacc98d2b539821062c01cdb6156db133

  • SSDEEP

    98304:E1jrnXvpaIaHPiUVU37Ojk2iNnUvEvvHS32M6SSguc:wrXxa7icU37OjkNnnvvyGM6vS

Malware Config

Signatures

  • CryptBot

    CryptBot is a C++ stealer distributed widely in bundle with other software.

  • Cryptbot family
  • Detects CryptBot payload 1 IoCs

    CryptBot is a C++ stealer distributed widely in bundle with other software.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Uses browser remote debugging 2 TTPs 4 IoCs

    Can be used control the browser and steal sensitive information such as credentials and session cookies.

  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1032
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --remote-debugging-port=9222 --profile-directory="Default"
      2⤵
      • Uses browser remote debugging
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2752
      • 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=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef70b9758,0x7fef70b9768,0x7fef70b9778
        3⤵
          PID:2716
        • C:\Windows\system32\ctfmon.exe
          ctfmon.exe
          3⤵
            PID:2236
          • 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=1136 --field-trial-handle=1180,i,2750151852856223811,8009753173556972220,131072 /prefetch:2
            3⤵
              PID:2692
            • 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=1508 --field-trial-handle=1180,i,2750151852856223811,8009753173556972220,131072 /prefetch:8
              3⤵
                PID:1332
              • 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=utility --mojo-platform-channel-handle=1604 --field-trial-handle=1180,i,2750151852856223811,8009753173556972220,131072 /prefetch:8
                3⤵
                  PID:1744
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2292 --field-trial-handle=1180,i,2750151852856223811,8009753173556972220,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:1452
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2320 --field-trial-handle=1180,i,2750151852856223811,8009753173556972220,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:1716
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1328 --field-trial-handle=1180,i,2750151852856223811,8009753173556972220,131072 /prefetch:2
                  3⤵
                    PID:1000
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --remote-debugging-port=9222 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=1272 --field-trial-handle=1180,i,2750151852856223811,8009753173556972220,131072 /prefetch:1
                    3⤵
                    • Uses browser remote debugging
                    PID:1916
                  • 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=3396 --field-trial-handle=1180,i,2750151852856223811,8009753173556972220,131072 /prefetch:8
                    3⤵
                      PID:2156
                    • 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=3684 --field-trial-handle=1180,i,2750151852856223811,8009753173556972220,131072 /prefetch:8
                      3⤵
                        PID:2356
                    • C:\Users\Admin\AppData\Local\Temp\service123.exe
                      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
                      2⤵
                      • Executes dropped EXE
                      • Loads dropped DLL
                      PID:3008
                    • C:\Windows\SysWOW64\schtasks.exe
                      "C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f
                      2⤵
                      • System Location Discovery: System Language Discovery
                      • Scheduled Task/Job: Scheduled Task
                      PID:2888
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 1032 -s 952
                      2⤵
                      • Program crash
                      PID:2108
                  • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                    "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                    1⤵
                      PID:2732
                    • C:\Windows\system32\taskeng.exe
                      taskeng.exe {C0869D68-C488-4F7D-9FB7-C487C8C99FEF} S-1-5-21-1488793075-819845221-1497111674-1000:UPNECVIU\Admin:Interactive:[1]
                      1⤵
                        PID:940
                        • C:\Users\Admin\AppData\Local\Temp\service123.exe
                          C:\Users\Admin\AppData\Local\Temp\/service123.exe
                          2⤵
                          • Executes dropped EXE
                          • Loads dropped DLL
                          PID:1300

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

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                      Downloads

                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1

                        Filesize

                        264KB

                        MD5

                        f50f89a0a91564d0b8a211f8921aa7de

                        SHA1

                        112403a17dd69d5b9018b8cede023cb3b54eab7d

                        SHA256

                        b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                        SHA512

                        bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\000007.dbtmp

                        Filesize

                        16B

                        MD5

                        18e723571b00fb1694a3bad6c78e4054

                        SHA1

                        afcc0ef32d46fe59e0483f9a3c891d3034d12f32

                        SHA256

                        8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

                        SHA512

                        43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

                      • memory/1032-18-0x0000000000A00000-0x00000000015A2000-memory.dmp

                        Filesize

                        11.6MB

                      • memory/1032-2-0x0000000000A01000-0x0000000000C78000-memory.dmp

                        Filesize

                        2.5MB

                      • memory/1032-5-0x0000000000A00000-0x00000000015A2000-memory.dmp

                        Filesize

                        11.6MB

                      • memory/1032-6-0x0000000000A00000-0x00000000015A2000-memory.dmp

                        Filesize

                        11.6MB

                      • memory/1032-7-0x0000000000A00000-0x00000000015A2000-memory.dmp

                        Filesize

                        11.6MB

                      • memory/1032-8-0x0000000000A00000-0x00000000015A2000-memory.dmp

                        Filesize

                        11.6MB

                      • memory/1032-9-0x0000000069CC0000-0x000000006A71B000-memory.dmp

                        Filesize

                        10.4MB

                      • memory/1032-0-0x0000000000A00000-0x00000000015A2000-memory.dmp

                        Filesize

                        11.6MB

                      • memory/1032-3-0x0000000000A00000-0x00000000015A2000-memory.dmp

                        Filesize

                        11.6MB

                      • memory/1032-4-0x0000000000A00000-0x00000000015A2000-memory.dmp

                        Filesize

                        11.6MB

                      • memory/1032-1-0x0000000077AC0000-0x0000000077AC2000-memory.dmp

                        Filesize

                        8KB

                      • memory/1032-77-0x0000000000A00000-0x00000000015A2000-memory.dmp

                        Filesize

                        11.6MB

                      • memory/1032-78-0x0000000000A00000-0x00000000015A2000-memory.dmp

                        Filesize

                        11.6MB

                      • memory/1032-80-0x0000000000A00000-0x00000000015A2000-memory.dmp

                        Filesize

                        11.6MB

                      • memory/1032-92-0x0000000000A00000-0x00000000015A2000-memory.dmp

                        Filesize

                        11.6MB

                      • memory/1300-106-0x0000000000ED0000-0x0000000000EE2000-memory.dmp

                        Filesize

                        72KB

                      • memory/3008-93-0x0000000000ED0000-0x0000000000EE2000-memory.dmp

                        Filesize

                        72KB

                      • memory/3008-94-0x0000000074170000-0x00000000742A4000-memory.dmp

                        Filesize

                        1.2MB