Analysis

  • max time kernel
    296s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-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 7 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 2 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 use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 34 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⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2020
    • 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 use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1640
      • 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=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef7de9758,0x7fef7de9768,0x7fef7de9778
        3⤵
          PID:2260
        • C:\Windows\system32\ctfmon.exe
          ctfmon.exe
          3⤵
            PID:2808
          • 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=1140 --field-trial-handle=1264,i,4763841234650353673,15480552910659440915,131072 /prefetch:2
            3⤵
              PID:2692
            • 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=1492 --field-trial-handle=1264,i,4763841234650353673,15480552910659440915,131072 /prefetch:8
              3⤵
                PID:2572
              • 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=1512 --field-trial-handle=1264,i,4763841234650353673,15480552910659440915,131072 /prefetch:8
                3⤵
                  PID:2512
                • 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=2312 --field-trial-handle=1264,i,4763841234650353673,15480552910659440915,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:2212
                • 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=2332 --field-trial-handle=1264,i,4763841234650353673,15480552910659440915,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:2760
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1368 --field-trial-handle=1264,i,4763841234650353673,15480552910659440915,131072 /prefetch:2
                  3⤵
                    PID:2184
                  • 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 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=3240 --field-trial-handle=1264,i,4763841234650353673,15480552910659440915,131072 /prefetch:1
                    3⤵
                    • Uses browser remote debugging
                    PID:1608
                  • 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=3468 --field-trial-handle=1264,i,4763841234650353673,15480552910659440915,131072 /prefetch:8
                    3⤵
                      PID:1720
                    • 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=3632 --field-trial-handle=1264,i,4763841234650353673,15480552910659440915,131072 /prefetch:8
                      3⤵
                        PID:580
                      • 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=3652 --field-trial-handle=1264,i,4763841234650353673,15480552910659440915,131072 /prefetch:8
                        3⤵
                          PID:284
                        • 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=3512 --field-trial-handle=1264,i,4763841234650353673,15480552910659440915,131072 /prefetch:8
                          3⤵
                            PID:628
                        • C:\Users\Admin\AppData\Local\Temp\service123.exe
                          "C:\Users\Admin\AppData\Local\Temp\service123.exe"
                          2⤵
                          • Executes dropped EXE
                          • Loads dropped DLL
                          PID:308
                        • 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:2308
                      • 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:3064
                        • C:\Windows\system32\taskeng.exe
                          taskeng.exe {F37B1243-3087-481E-BA2A-C3719BEB7D03} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
                          1⤵
                            PID:2608
                            • C:\Users\Admin\AppData\Local\Temp\service123.exe
                              C:\Users\Admin\AppData\Local\Temp\/service123.exe
                              2⤵
                              • Executes dropped EXE
                              • Loads dropped DLL
                              PID:552
                            • C:\Users\Admin\AppData\Local\Temp\service123.exe
                              C:\Users\Admin\AppData\Local\Temp\/service123.exe
                              2⤵
                              • Executes dropped EXE
                              • Loads dropped DLL
                              PID:1740
                            • C:\Users\Admin\AppData\Local\Temp\service123.exe
                              C:\Users\Admin\AppData\Local\Temp\/service123.exe
                              2⤵
                              • Executes dropped EXE
                              • Loads dropped DLL
                              PID:2912
                            • C:\Users\Admin\AppData\Local\Temp\service123.exe
                              C:\Users\Admin\AppData\Local\Temp\/service123.exe
                              2⤵
                              • Executes dropped EXE
                              • Loads dropped DLL
                              PID:2212

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\DawnCache\data_1

                            Filesize

                            264KB

                            MD5

                            f50f89a0a91564d0b8a211f8921aa7de

                            SHA1

                            112403a17dd69d5b9018b8cede023cb3b54eab7d

                            SHA256

                            b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                            SHA512

                            bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\shared_proto_db\metadata\000007.dbtmp

                            Filesize

                            16B

                            MD5

                            18e723571b00fb1694a3bad6c78e4054

                            SHA1

                            afcc0ef32d46fe59e0483f9a3c891d3034d12f32

                            SHA256

                            8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

                            SHA512

                            43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

                          • \??\pipe\crashpad_1640_WAHJPQGUXNNAPXDE

                            MD5

                            d41d8cd98f00b204e9800998ecf8427e

                            SHA1

                            da39a3ee5e6b4b0d3255bfef95601890afd80709

                            SHA256

                            e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                            SHA512

                            cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                          • memory/308-81-0x0000000000250000-0x0000000000262000-memory.dmp

                            Filesize

                            72KB

                          • memory/308-82-0x0000000075340000-0x0000000075474000-memory.dmp

                            Filesize

                            1.2MB

                          • memory/552-90-0x0000000000250000-0x0000000000262000-memory.dmp

                            Filesize

                            72KB

                          • memory/1740-105-0x0000000000250000-0x0000000000262000-memory.dmp

                            Filesize

                            72KB

                          • memory/2020-39-0x00000000000A0000-0x0000000000CDE000-memory.dmp

                            Filesize

                            12.2MB

                          • memory/2020-66-0x00000000000A0000-0x0000000000CDE000-memory.dmp

                            Filesize

                            12.2MB

                          • memory/2020-78-0x00000000000A0000-0x0000000000CDE000-memory.dmp

                            Filesize

                            12.2MB

                          • memory/2212-135-0x0000000000250000-0x0000000000262000-memory.dmp

                            Filesize

                            72KB

                          • memory/2912-120-0x0000000000250000-0x0000000000262000-memory.dmp

                            Filesize

                            72KB