Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/11/2024, 02:49

General

  • Target
    e315015d4858a0d26297859a30aaf1526d1c066acc6384937a3568c0571fa21b.exe
  • Size 4.2MB
  • Sample241118-dbbraa1pfr
  • SHA256 e315015d4858a0d26297859a30aaf1526d1c066acc6384937a3568c0571fa21b
  • MD5 SHA1 SHA512 SSDEEP

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 1 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 1 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\e315015d4858a0d26297859a30aaf1526d1c066acc6384937a3568c0571fa21b.exe
    "C:\Users\Admin\AppData\Local\Temp\e315015d4858a0d26297859a30aaf1526d1c066acc6384937a3568c0571fa21b.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:3388
    • 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:3672
      • 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,0x100,0xd4,0x104,0x7ffeaf80cc40,0x7ffeaf80cc4c,0x7ffeaf80cc58
        3⤵
          PID:2764
        • 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=1980,i,11572388970853069490,6781604459235180090,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=1976 /prefetch:2
          3⤵
            PID:216
          • 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=1888,i,11572388970853069490,6781604459235180090,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2104 /prefetch:3
            3⤵
              PID:5056
            • 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=2276,i,11572388970853069490,6781604459235180090,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2508 /prefetch:8
              3⤵
                PID:4300
              • 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=3168,i,11572388970853069490,6781604459235180090,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3184 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:3556
              • 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=3196,i,11572388970853069490,6781604459235180090,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3236 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:4252
              • 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=4504,i,11572388970853069490,6781604459235180090,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3636 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:928
            • 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:2124
            • 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:2016
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 3388 -s 1524
              2⤵
              • Program crash
              PID:2520
          • 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:1220
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3388 -ip 3388
              1⤵
                PID:4340

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

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                    Downloads

                    SCT Auditing Pending Reports

                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports
                    • Size 2B
                    • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                    • MD5 SHA1 SHA512

                    memory/2124-76-0x00000000738F0000-0x0000000073A24000-memory.dmp

                    memory/2124-75-0x0000000000020000-0x0000000000032000-memory.dmp

                    memory/3388-7-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-17-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-6-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-0-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-8-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-9-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-10-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-11-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-12-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-13-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-14-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-15-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-16-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-5-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-19-0x0000000069CC0000-0x000000006A71B000-memory.dmp

                    memory/3388-27-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-4-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-3-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-59-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-60-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-62-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-68-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-74-0x0000000000BA0000-0x000000000173F000-memory.dmp

                    memory/3388-2-0x0000000000BA1000-0x0000000000E18000-memory.dmp

                    memory/3388-1-0x00000000779D4000-0x00000000779D6000-memory.dmp