Analysis

  • max time kernel
    148s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 13:01

General

  • Target

    file.exe

  • Size

    4.2MB

  • MD5

    b759516b5ee0d73ed0870c1be43fb479

  • SHA1

    34533e5ca737f48d55c73ba5cb939f39089c04c2

  • SHA256

    91180f943fef39f7177bbd1c1d8cf225fe93c0264dee172ebc7c96e69592373f

  • SHA512

    e911a8ca629d58942da1b2f8a85552b7f65814e071fb3105049e61eeef75fe4b545adbd95e01d58510b48f2abe83a630d438c8ea95abfd0e1866de330f27bc26

  • SSDEEP

    98304:KyomaMWEVLamDLaUw+Z1R0pfhNmVoTkj9AblQFHtN:KQQEJhDLPw20p3e1NT

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 3 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.

  • 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 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 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 34 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
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2772
    • 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:2928
      • 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,0x7fefb8e9758,0x7fefb8e9768,0x7fefb8e9778
        3⤵
          PID:2996
        • C:\Windows\system32\ctfmon.exe
          ctfmon.exe
          3⤵
            PID:1656
          • 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=1160 --field-trial-handle=1372,i,17618283596276820825,11033517957915355558,131072 /prefetch:2
            3⤵
              PID:516
            • 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=1500 --field-trial-handle=1372,i,17618283596276820825,11033517957915355558,131072 /prefetch:8
              3⤵
                PID:2368
              • 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=1608 --field-trial-handle=1372,i,17618283596276820825,11033517957915355558,131072 /prefetch:8
                3⤵
                  PID:2156
                • 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=2340 --field-trial-handle=1372,i,17618283596276820825,11033517957915355558,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:2640
                • 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=2344 --field-trial-handle=1372,i,17618283596276820825,11033517957915355558,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:1472
                • 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=1156 --field-trial-handle=1372,i,17618283596276820825,11033517957915355558,131072 /prefetch:2
                  3⤵
                    PID:1688
                • C:\Users\Admin\AppData\Local\Temp\service123.exe
                  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
                  2⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:2076
                • 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:900
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 964
                  2⤵
                  • Program crash
                  PID:2972
              • 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:548

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\000007.dbtmp

                  Filesize

                  16B

                  MD5

                  18e723571b00fb1694a3bad6c78e4054

                  SHA1

                  afcc0ef32d46fe59e0483f9a3c891d3034d12f32

                  SHA256

                  8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

                  SHA512

                  43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

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

                  Filesize

                  264KB

                  MD5

                  f50f89a0a91564d0b8a211f8921aa7de

                  SHA1

                  112403a17dd69d5b9018b8cede023cb3b54eab7d

                  SHA256

                  b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                  SHA512

                  bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

                • \??\pipe\crashpad_2928_SKULQQSBJRMMBLTH

                  MD5

                  d41d8cd98f00b204e9800998ecf8427e

                  SHA1

                  da39a3ee5e6b4b0d3255bfef95601890afd80709

                  SHA256

                  e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                  SHA512

                  cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                • memory/2076-97-0x0000000074410000-0x0000000074544000-memory.dmp

                  Filesize

                  1.2MB

                • memory/2076-96-0x0000000000D30000-0x0000000000D42000-memory.dmp

                  Filesize

                  72KB

                • memory/2772-16-0x0000000069CC0000-0x000000006A71B000-memory.dmp

                  Filesize

                  10.4MB

                • memory/2772-26-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-7-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-8-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-9-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-10-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-11-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-12-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-13-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-14-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-15-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-0-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-25-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-6-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-29-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-5-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-4-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-67-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-3-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-77-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-78-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-80-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-81-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-82-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-94-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-95-0x0000000000010000-0x0000000000C6D000-memory.dmp

                  Filesize

                  12.4MB

                • memory/2772-2-0x0000000000011000-0x0000000000289000-memory.dmp

                  Filesize

                  2.5MB

                • memory/2772-1-0x0000000077D30000-0x0000000077D32000-memory.dmp

                  Filesize

                  8KB