Analysis

  • max time kernel
    79s
  • max time network
    114s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    09/11/2022, 05:42

General

  • Target

    ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe

  • Size

    2.0MB

  • MD5

    dd758f1956ddeadd5da9c395939b8397

  • SHA1

    1629d97a0cb060d1f9955aaf33c8ed3136cb0467

  • SHA256

    ecf263506efdc83d3911e931d59dce6b9e9d6fe0c05695c040c57f724ef79efc

  • SHA512

    c1cbab287b4572c806a1f199e75385774e6b56cbbcc8329b6bceb2a356ef566cb81bb48b73b899be7831cc46e6aa274636ea783155cc3544bff07fed3340e765

  • SSDEEP

    49152:ffCFy+sgiEBVX+KwLA+/dhGgTgPH3oS0MT/oMNif:ffCs6BJ+dM+/dhGKoaeif

Score
10/10

Malware Config

Extracted

Family

systembc

C2

n20b28tu.info:4248

n20b28tu88.info:4248

Signatures

  • SystemBC

    SystemBC is a proxy and remote administration tool first seen in 2019.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe
    "C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.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
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:1228
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {E8CC419B-80D0-4D2C-BAF1-BEBF59834F7F} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:280
    • C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe
      C:\Users\Admin\AppData\Local\Temp\ECF263506EFDC83D3911E931D59DCE6B9E9D6FE0C0569.exe start
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:1532

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1228-54-0x0000000000400000-0x0000000000894000-memory.dmp

          Filesize

          4.6MB

        • memory/1228-55-0x0000000075561000-0x0000000075563000-memory.dmp

          Filesize

          8KB

        • memory/1228-56-0x0000000077090000-0x0000000077210000-memory.dmp

          Filesize

          1.5MB

        • memory/1228-57-0x0000000000400000-0x0000000000894000-memory.dmp

          Filesize

          4.6MB

        • memory/1228-61-0x0000000077090000-0x0000000077210000-memory.dmp

          Filesize

          1.5MB

        • memory/1228-63-0x0000000077090000-0x0000000077210000-memory.dmp

          Filesize

          1.5MB

        • memory/1532-59-0x0000000000400000-0x0000000000894000-memory.dmp

          Filesize

          4.6MB

        • memory/1532-62-0x0000000000400000-0x0000000000894000-memory.dmp

          Filesize

          4.6MB