Analysis

  • max time kernel
    141s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2024, 17:37

General

  • Target

    file.exe

  • Size

    4.2MB

  • MD5

    3b098936d2ba04149e255a50f61b5415

  • SHA1

    271d4427a66a5169e0928535dc93b230fafdd916

  • SHA256

    b67cb8c91c159ad18db1de834b32e3d17c42f6b595762905c015eba800b93a3b

  • SHA512

    810e6b83732f7c3426768348390cde9c5b3ffecf958edc832982475c91bfd5747960477270c7594dd01d310c436ec1da51f277dff5bf6b58d1c13b28d8042d7f

  • SSDEEP

    98304:w1h6bxB94hk9yMyHPPnUv68dc4BHSlAyitLDCSSbAl4Y8hoi7114UQ:w1gZKA/jSlkZDCXfYP/9

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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 2 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 4 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\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
    • 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:3412
    • 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:3392
      • 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,0x100,0xd4,0x104,0x7ffc2dadcc40,0x7ffc2dadcc4c,0x7ffc2dadcc58
        3⤵
          PID:552
        • 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=1900,i,2057211407158997885,759068585154414000,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=1892 /prefetch:2
          3⤵
            PID:3608
          • 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=2156,i,2057211407158997885,759068585154414000,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2100 /prefetch:3
            3⤵
              PID:2680
            • 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=2228,i,2057211407158997885,759068585154414000,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2436 /prefetch:8
              3⤵
                PID:3616
              • 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,2057211407158997885,759068585154414000,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3196 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:5048
              • 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=3216,i,2057211407158997885,759068585154414000,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3348 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:3160
              • 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=3848,i,2057211407158997885,759068585154414000,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4512 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:4724
            • 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:212
            • 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:3148
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 3412 -s 1840
              2⤵
              • Program crash
              PID:3364
          • 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:1868
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 3412 -ip 3412
              1⤵
                PID:4676
              • C:\Users\Admin\AppData\Local\Temp\service123.exe
                C:\Users\Admin\AppData\Local\Temp\/service123.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                PID:532

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    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/212-71-0x0000000075830000-0x0000000075964000-memory.dmp

                      Filesize

                      1.2MB

                    • memory/212-70-0x0000000000730000-0x0000000000742000-memory.dmp

                      Filesize

                      72KB

                    • memory/532-82-0x0000000000730000-0x0000000000742000-memory.dmp

                      Filesize

                      72KB

                    • memory/3412-12-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-14-0x0000000069CC0000-0x000000006A71B000-memory.dmp

                      Filesize

                      10.4MB

                    • memory/3412-7-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-8-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-9-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-10-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-11-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-0-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-13-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-6-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-23-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-5-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-4-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-56-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-58-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-69-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-3-0x0000000000850000-0x0000000001498000-memory.dmp

                      Filesize

                      12.3MB

                    • memory/3412-2-0x0000000000851000-0x0000000000AC9000-memory.dmp

                      Filesize

                      2.5MB

                    • memory/3412-1-0x0000000077E44000-0x0000000077E46000-memory.dmp

                      Filesize

                      8KB