Analysis

  • max time kernel
    292s
  • max time network
    257s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    25-10-2024 02:07

General

  • Target

    d16b3abed2c47fa35f325e50885a41ca0e9c8c7c570eac7b0f93225194d76bbc.exe

  • Size

    12.2MB

  • MD5

    51b19de8301b6a6756f05fc6b1b16ba2

  • SHA1

    588d4b99fe140cb6abc24daa1f8f40b5295c1864

  • SHA256

    d16b3abed2c47fa35f325e50885a41ca0e9c8c7c570eac7b0f93225194d76bbc

  • SHA512

    5503797075b107036d9ba48370daada06a2331b3cebdaa73a041f23d0b9a1180d2dfe90d7e570491085163b02d9d062db88de50a527782669df10c5f9c85f68b

  • SSDEEP

    98304:nmCvsKdBHCa5b2MGm76yqmstR16ZcTLpJMvbqyhL9ru0KanB:LsKdBHCa5b2MGm765miRciJyhpru0pn

Malware Config

Extracted

Family

cryptbot

Signatures

  • CryptBot

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

  • Uses browser remote debugging 2 TTPs 4 IoCs

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

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 5 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.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • 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 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d16b3abed2c47fa35f325e50885a41ca0e9c8c7c570eac7b0f93225194d76bbc.exe
    "C:\Users\Admin\AppData\Local\Temp\d16b3abed2c47fa35f325e50885a41ca0e9c8c7c570eac7b0f93225194d76bbc.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4988
    • 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:4896
      • 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=0xcc,0xd0,0xd4,0xa8,0xd8,0x7ff98b469758,0x7ff98b469768,0x7ff98b469778
        3⤵
          PID:4992
        • C:\Windows\system32\ctfmon.exe
          ctfmon.exe
          3⤵
            PID:1988
          • 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=1536 --field-trial-handle=1796,i,18279847833951802313,12096564431610909171,131072 /prefetch:2
            3⤵
              PID:4692
            • 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=1848 --field-trial-handle=1796,i,18279847833951802313,12096564431610909171,131072 /prefetch:8
              3⤵
                PID:3244
              • 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=2088 --field-trial-handle=1796,i,18279847833951802313,12096564431610909171,131072 /prefetch:8
                3⤵
                  PID:1280
                • 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=3084 --field-trial-handle=1796,i,18279847833951802313,12096564431610909171,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:2484
                • 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=3096 --field-trial-handle=1796,i,18279847833951802313,12096564431610909171,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:4032
                • 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=7 --mojo-platform-channel-handle=4336 --field-trial-handle=1796,i,18279847833951802313,12096564431610909171,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:3752
                • 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=4564 --field-trial-handle=1796,i,18279847833951802313,12096564431610909171,131072 /prefetch:8
                  3⤵
                    PID:2992
                  • 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=4580 --field-trial-handle=1796,i,18279847833951802313,12096564431610909171,131072 /prefetch:8
                    3⤵
                      PID:1372
                    • 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=4592 --field-trial-handle=1796,i,18279847833951802313,12096564431610909171,131072 /prefetch:8
                      3⤵
                        PID:3044
                      • 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=4556 --field-trial-handle=1796,i,18279847833951802313,12096564431610909171,131072 /prefetch:8
                        3⤵
                          PID:4584
                      • 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:2848
                      • 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:2732
                    • 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:3148
                      • C:\Users\Admin\AppData\Local\Temp\service123.exe
                        C:\Users\Admin\AppData\Local\Temp\/service123.exe
                        1⤵
                        • Executes dropped EXE
                        • Loads dropped DLL
                        PID:2272
                      • C:\Users\Admin\AppData\Local\Temp\service123.exe
                        C:\Users\Admin\AppData\Local\Temp\/service123.exe
                        1⤵
                        • Executes dropped EXE
                        • Loads dropped DLL
                        PID:2456
                      • C:\Users\Admin\AppData\Local\Temp\service123.exe
                        C:\Users\Admin\AppData\Local\Temp\/service123.exe
                        1⤵
                        • Executes dropped EXE
                        • Loads dropped DLL
                        PID:1384
                      • C:\Users\Admin\AppData\Local\Temp\service123.exe
                        C:\Users\Admin\AppData\Local\Temp\/service123.exe
                        1⤵
                        • Executes dropped EXE
                        • Loads dropped DLL
                        PID:1280

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

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                      Downloads

                      • \??\pipe\crashpad_4896_CRQAFRYERKSMMURT

                        MD5

                        d41d8cd98f00b204e9800998ecf8427e

                        SHA1

                        da39a3ee5e6b4b0d3255bfef95601890afd80709

                        SHA256

                        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                        SHA512

                        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                      • memory/1280-97-0x00000000000F0000-0x0000000000102000-memory.dmp

                        Filesize

                        72KB

                      • memory/1384-82-0x00000000000F0000-0x0000000000102000-memory.dmp

                        Filesize

                        72KB

                      • memory/2272-52-0x00000000000F0000-0x0000000000102000-memory.dmp

                        Filesize

                        72KB

                      • memory/2456-67-0x00000000000F0000-0x0000000000102000-memory.dmp

                        Filesize

                        72KB

                      • memory/2848-44-0x00000000000F0000-0x0000000000102000-memory.dmp

                        Filesize

                        72KB

                      • memory/2848-45-0x0000000074070000-0x00000000741A4000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/4988-15-0x0000000000950000-0x000000000158E000-memory.dmp

                        Filesize

                        12.2MB

                      • memory/4988-33-0x0000000000950000-0x000000000158E000-memory.dmp

                        Filesize

                        12.2MB

                      • memory/4988-42-0x0000000000950000-0x000000000158E000-memory.dmp

                        Filesize

                        12.2MB