Analysis

  • max time kernel
    149s
  • max time network
    72s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    21-11-2024 17:08

General

  • Target

    file.exe

  • Size

    4.1MB

  • MD5

    5f333ec8f045aff195aad4311a4b7ef2

  • SHA1

    99dd90fac17bedff9dfe1ad6c2d0a953758bd91b

  • SHA256

    ddc36ae51e0636472cbe7f04d0f4f3ae11a3f8efcdf8fd6068b0dc6eb614170b

  • SHA512

    d971ef26716279c02146ca4a877ff0360bed51a4817f81efff940cbaed80f348e45de17b722b6723d15af6bb2def3bac2bfbace62c2ff8bc480d6d500a120321

  • SSDEEP

    98304:B9Njdz3gVVo8KPTFqhcDthVheU4CJl1zR1zzRqJ2trCyT:HLrl71nfeU4CrZzVqgt1T

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 4 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:2548
    • 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:1992
      • 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,0x7fefb6b9758,0x7fefb6b9768,0x7fefb6b9778
        3⤵
          PID:932
        • C:\Windows\system32\ctfmon.exe
          ctfmon.exe
          3⤵
            PID:1984
          • 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=1148 --field-trial-handle=1200,i,16888561872254387001,15666935835441130126,131072 /prefetch:2
            3⤵
              PID:1108
            • 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=1484 --field-trial-handle=1200,i,16888561872254387001,15666935835441130126,131072 /prefetch:8
              3⤵
                PID:2448
              • 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=1596 --field-trial-handle=1200,i,16888561872254387001,15666935835441130126,131072 /prefetch:8
                3⤵
                  PID:2436
                • 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=2264 --field-trial-handle=1200,i,16888561872254387001,15666935835441130126,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:2148
                • 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=2308 --field-trial-handle=1200,i,16888561872254387001,15666935835441130126,131072 /prefetch:1
                  3⤵
                  • Uses browser remote debugging
                  PID:2312
                • 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=1456 --field-trial-handle=1200,i,16888561872254387001,15666935835441130126,131072 /prefetch:2
                  3⤵
                    PID:1300
                • C:\Users\Admin\AppData\Local\Temp\service123.exe
                  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
                  2⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:2908
                • 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:2780
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2548 -s 964
                  2⤵
                  • Program crash
                  PID:2836
              • 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:2132

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

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

                  Filesize

                  264KB

                  MD5

                  f50f89a0a91564d0b8a211f8921aa7de

                  SHA1

                  112403a17dd69d5b9018b8cede023cb3b54eab7d

                  SHA256

                  b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                  SHA512

                  bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

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

                  Filesize

                  16B

                  MD5

                  18e723571b00fb1694a3bad6c78e4054

                  SHA1

                  afcc0ef32d46fe59e0483f9a3c891d3034d12f32

                  SHA256

                  8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

                  SHA512

                  43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

                • \??\pipe\crashpad_1992_TGDBXLOZBCRJKUPO

                  MD5

                  d41d8cd98f00b204e9800998ecf8427e

                  SHA1

                  da39a3ee5e6b4b0d3255bfef95601890afd80709

                  SHA256

                  e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                  SHA512

                  cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                • memory/2548-26-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-7-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-19-0x0000000069CC0000-0x000000006A71B000-memory.dmp

                  Filesize

                  10.4MB

                • memory/2548-6-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-27-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-8-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-9-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-10-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-11-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-12-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-13-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-28-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-15-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-0-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-5-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-4-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-14-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-3-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-2-0x0000000001231000-0x00000000014A9000-memory.dmp

                  Filesize

                  2.5MB

                • memory/2548-1-0x0000000077B00000-0x0000000077B02000-memory.dmp

                  Filesize

                  8KB

                • memory/2548-78-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-79-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-80-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-82-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-83-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-94-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2548-96-0x0000000001230000-0x0000000001E61000-memory.dmp

                  Filesize

                  12.2MB

                • memory/2908-97-0x0000000000130000-0x0000000000142000-memory.dmp

                  Filesize

                  72KB

                • memory/2908-98-0x00000000741E0000-0x0000000074314000-memory.dmp

                  Filesize

                  1.2MB