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Analysis

  • max time kernel
    148s
  • 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, 03:31

General

  • Target

    TJ52V_file.exe

  • Size

    4.2MB

  • MD5

    f35acf76c5ace4e007dc64fcde784dbe

  • SHA1

    8c3fbdc41b3d357b06902049e2ad6f2e4d136344

  • SHA256

    86088c0dfa1761f1989204ae2d46a3a0b3defaf379a2ccd0b81b0067aae8ec07

  • SHA512

    81c0f7526b83b76e9dbf8fa1256baa0945df7337dc876f45b774651449ef98d776b371d0ec91ff771dad0e722bdb2358205bfeaefc5559e738da157111f3002a

  • SSDEEP

    98304:89kuJYPlJjOx3wSnKkDa4RWrlJqxQl/eelLKu6hTSRxRQee:zIsirKkDHRaJqil/LzIqXQee

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 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 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\TJ52V_file.exe
    "C:\Users\Admin\AppData\Local\Temp\TJ52V_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:5100
    • 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:2380
      • 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=0xfc,0x100,0x104,0xdc,0x108,0x7ffd857fcc40,0x7ffd857fcc4c,0x7ffd857fcc58
        3⤵
          PID:4696
        • 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=1964,i,1191721383699704874,4756595753009267750,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=1960 /prefetch:2
          3⤵
            PID:3624
          • 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=2180,i,1191721383699704874,4756595753009267750,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2196 /prefetch:3
            3⤵
              PID:2068
            • 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=2220,i,1191721383699704874,4756595753009267750,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2468 /prefetch:8
              3⤵
                PID:2072
              • 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=3156,i,1191721383699704874,4756595753009267750,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3176 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:2536
              • 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=3188,i,1191721383699704874,4756595753009267750,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3248 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:1196
              • 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=4344,i,1191721383699704874,4756595753009267750,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3624 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:116
            • 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:4936
            • 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:2200
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 1512
              2⤵
              • Program crash
              PID:3492
          • 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:2516
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5100 -ip 5100
              1⤵
                PID:2980
              • C:\Users\Admin\AppData\Local\Temp\service123.exe
                C:\Users\Admin\AppData\Local\Temp\/service123.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                PID:2932
              • C:\Users\Admin\AppData\Local\Temp\service123.exe
                C:\Users\Admin\AppData\Local\Temp\/service123.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                PID:4568

              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/2932-70-0x0000000000E30000-0x0000000000E42000-memory.dmp

                Filesize

                72KB

              • memory/4568-85-0x0000000000E30000-0x0000000000E42000-memory.dmp

                Filesize

                72KB

              • memory/4936-65-0x0000000073400000-0x0000000073534000-memory.dmp

                Filesize

                1.2MB

              • memory/4936-64-0x0000000000E30000-0x0000000000E42000-memory.dmp

                Filesize

                72KB

              • memory/5100-16-0x0000000000650000-0x00000000012A1000-memory.dmp

                Filesize

                12.3MB

              • memory/5100-7-0x0000000069CC0000-0x000000006A71B000-memory.dmp

                Filesize

                10.4MB

              • memory/5100-0-0x0000000000650000-0x00000000012A1000-memory.dmp

                Filesize

                12.3MB

              • memory/5100-19-0x0000000000650000-0x00000000012A1000-memory.dmp

                Filesize

                12.3MB

              • memory/5100-6-0x0000000000650000-0x00000000012A1000-memory.dmp

                Filesize

                12.3MB

              • memory/5100-5-0x0000000000650000-0x00000000012A1000-memory.dmp

                Filesize

                12.3MB

              • memory/5100-50-0x0000000000650000-0x00000000012A1000-memory.dmp

                Filesize

                12.3MB

              • memory/5100-57-0x0000000000650000-0x00000000012A1000-memory.dmp

                Filesize

                12.3MB

              • memory/5100-63-0x0000000000650000-0x00000000012A1000-memory.dmp

                Filesize

                12.3MB

              • memory/5100-4-0x0000000000650000-0x00000000012A1000-memory.dmp

                Filesize

                12.3MB

              • memory/5100-3-0x0000000000650000-0x00000000012A1000-memory.dmp

                Filesize

                12.3MB

              • memory/5100-2-0x0000000000651000-0x00000000008C9000-memory.dmp

                Filesize

                2.5MB

              • memory/5100-1-0x00000000772D4000-0x00000000772D6000-memory.dmp

                Filesize

                8KB