Analysis

  • max time kernel
    143s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250207-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-02-2025 15:11

General

  • Target

    random.exe

  • Size

    6.3MB

  • MD5

    3d72b2c4ba36263375742d6c8d726c98

  • SHA1

    64ed89d703370ce69d0d8dea61e697f192719421

  • SHA256

    5daf14b11bae7062c17e08f0fc02d949b70f0a862a703821f2bfdb7720c2e516

  • SHA512

    42fdb2e6e525d39897bf1031105f78aaf9731c539dc8bc619bb1aa4a08bac12c2b94f8efe26bb3165abb162fa0a89a8e40964da60847283a54ccda0ab654ad7c

  • SSDEEP

    98304:6/Ury/Oc4Njy7ObMpVR9H09BK96gcFOnCGppHMhUx/ja:6/Uymc4NOOCVf3gurp

Malware Config

Extracted

Family

cryptbot

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.

  • Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 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 3 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 3 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 12 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\random.exe
    "C:\Users\Admin\AppData\Local\Temp\random.exe"
    1⤵
    • Enumerates VirtualBox registry keys
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks computer location settings
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3364
    • 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 behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4332
      • 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:4 --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=123.0.6312.123 --initial-client-data=0xf8,0xfc,0x100,0xd4,0x104,0x7ffd156bcc40,0x7ffd156bcc4c,0x7ffd156bcc58
        3⤵
          PID:336
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1936,i,257438731559593136,5559914079128500770,262144 --variations-seed-version=20250206-180041.353000 --mojo-platform-channel-handle=1932 /prefetch:2
          3⤵
            PID:2576
          • 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 --no-appcompat-clear --field-trial-handle=2064,i,257438731559593136,5559914079128500770,262144 --variations-seed-version=20250206-180041.353000 --mojo-platform-channel-handle=2076 /prefetch:3
            3⤵
              PID:2476
            • 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 --no-appcompat-clear --field-trial-handle=2296,i,257438731559593136,5559914079128500770,262144 --variations-seed-version=20250206-180041.353000 --mojo-platform-channel-handle=2304 /prefetch:8
              3⤵
                PID:884
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3188,i,257438731559593136,5559914079128500770,262144 --variations-seed-version=20250206-180041.353000 --mojo-platform-channel-handle=3208 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:3604
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3244,i,257438731559593136,5559914079128500770,262144 --variations-seed-version=20250206-180041.353000 --mojo-platform-channel-handle=3232 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:4472
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=3644,i,257438731559593136,5559914079128500770,262144 --variations-seed-version=20250206-180041.353000 --mojo-platform-channel-handle=4292 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:212
              • 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 --no-appcompat-clear --field-trial-handle=4672,i,257438731559593136,5559914079128500770,262144 --variations-seed-version=20250206-180041.353000 --mojo-platform-channel-handle=4640 /prefetch:8
                3⤵
                  PID:4656
                • 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 --no-appcompat-clear --field-trial-handle=4524,i,257438731559593136,5559914079128500770,262144 --variations-seed-version=20250206-180041.353000 --mojo-platform-channel-handle=4656 /prefetch:8
                  3⤵
                    PID:4360
                • C:\Users\Admin\AppData\Local\Temp\service123.exe
                  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
                  2⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  • System Location Discovery: System Language Discovery
                  PID:1736
                • 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:3200
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3364 -s 1840
                  2⤵
                  • Program crash
                  PID:2232
              • C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe
                "C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe"
                1⤵
                  PID:552
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3364 -ip 3364
                  1⤵
                    PID:428
                  • C:\Users\Admin\AppData\Local\Temp\service123.exe
                    C:\Users\Admin\AppData\Local\Temp\/service123.exe
                    1⤵
                    • Executes dropped EXE
                    • Loads dropped DLL
                    PID:2292
                  • C:\Users\Admin\AppData\Local\Temp\service123.exe
                    C:\Users\Admin\AppData\Local\Temp\/service123.exe
                    1⤵
                    • Executes dropped EXE
                    • Loads dropped DLL
                    PID:2772

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

                    Filesize

                    2B

                    MD5

                    d751713988987e9331980363e24189ce

                    SHA1

                    97d170e1550eee4afc0af065b78cda302a97674c

                    SHA256

                    4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

                    SHA512

                    b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

                  • memory/1736-86-0x0000000073B50000-0x0000000073C84000-memory.dmp

                    Filesize

                    1.2MB

                  • memory/1736-85-0x0000000000C90000-0x0000000000CA2000-memory.dmp

                    Filesize

                    72KB

                  • memory/2292-84-0x0000000000C90000-0x0000000000CA2000-memory.dmp

                    Filesize

                    72KB

                  • memory/2772-99-0x0000000000C90000-0x0000000000CA2000-memory.dmp

                    Filesize

                    72KB

                  • memory/3364-21-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-6-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-8-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-9-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-11-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-12-0x0000000069CC0000-0x000000006A71B000-memory.dmp

                    Filesize

                    10.4MB

                  • memory/3364-0-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-22-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-23-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-7-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-5-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-68-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-70-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-81-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-4-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-3-0x00000000001B0000-0x0000000000CFA000-memory.dmp

                    Filesize

                    11.3MB

                  • memory/3364-2-0x00000000001B1000-0x000000000044A000-memory.dmp

                    Filesize

                    2.6MB

                  • memory/3364-1-0x0000000077BE4000-0x0000000077BE6000-memory.dmp

                    Filesize

                    8KB