Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    12-12-2024 15:45

General

  • Target

    file.exe

  • Size

    1.8MB

  • MD5

    3b8b3018e3283830627249d26305419d

  • SHA1

    40fa5ef5594f9e32810c023aba5b6b8cea82f680

  • SHA256

    258e444e78225f74d47ba4698d49a33e6d1f6ed1f3f710186be426078e2bf1cb

  • SHA512

    2e9a42e53406446b503f150abfa16b994ee34211830d14ccbfbf52d86019dc5cca95c40222e5c6aed910c90988f999560ff972c575f9c207d7834abba6f04aa0

  • SSDEEP

    49152:P8nqKzUOChrrWci7WP+g5YQtli9T0n26vwh:PsqJJrrWviPcf6

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Deletes itself 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.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • 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
  • 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.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 8 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
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1800
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\file.exe" & rd /s /q "C:\ProgramData\NYC2NGV37YCB" & exit
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1192
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 10
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab88F0.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar8903.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • memory/1800-0-0x0000000000400000-0x0000000000A9C000-memory.dmp

    Filesize

    6.6MB

  • memory/1800-1-0x0000000077C40000-0x0000000077C42000-memory.dmp

    Filesize

    8KB

  • memory/1800-2-0x0000000000401000-0x000000000041E000-memory.dmp

    Filesize

    116KB

  • memory/1800-3-0x0000000000400000-0x0000000000A9C000-memory.dmp

    Filesize

    6.6MB

  • memory/1800-4-0x0000000000400000-0x0000000000A9C000-memory.dmp

    Filesize

    6.6MB

  • memory/1800-94-0x0000000000400000-0x0000000000A9C000-memory.dmp

    Filesize

    6.6MB

  • memory/1800-149-0x0000000000400000-0x0000000000A9C000-memory.dmp

    Filesize

    6.6MB

  • memory/1800-168-0x0000000000400000-0x0000000000A9C000-memory.dmp

    Filesize

    6.6MB

  • memory/1800-177-0x0000000000400000-0x0000000000A9C000-memory.dmp

    Filesize

    6.6MB

  • memory/1800-207-0x0000000000400000-0x0000000000A9C000-memory.dmp

    Filesize

    6.6MB