Analysis

  • max time kernel
    120s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2023, 13:16

General

  • Target

    Open Invoices.exe

  • Size

    638KB

  • MD5

    3cf50c15d2c08abbcfcc58ee94ae75fd

  • SHA1

    a170cfc66096715badfbce43cc0a3c18d5fd6d28

  • SHA256

    f7a062cbdd22f2bd346f704ba3d4e1ca864ec525a4fa96ac2be1991faeeb5690

  • SHA512

    0f90ba0ab8ef780a65286a335a9121c9eb5e8d88f6322bcf671b0cb44d954c1c1b9c268df4a754840e0866704f9e9ba467faa4133f0dbb92f0360a8cc903b254

  • SSDEEP

    12288:gvoYmDHvCRKUletwzaDOPObzFhHvOj8nahu8nPQ5USkPlTAbCsLCmLB:gvobXUleqW7FhHvaTkuPQNYTAbbLhLB

Score
7/10

Malware Config

Signatures

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 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 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Open Invoices.exe
    "C:\Users\Admin\AppData\Local\Temp\Open Invoices.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2372
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dYlKXmBLyq.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2776
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dYlKXmBLyq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF3A2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2884
    • C:\Users\Admin\AppData\Local\Temp\Open Invoices.exe
      "C:\Users\Admin\AppData\Local\Temp\Open Invoices.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2576

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmpF3A2.tmp

          Filesize

          1KB

          MD5

          000f1db59b41abdb1ef8f9a9c9897a32

          SHA1

          bf8bb412900c288a7b9cbb8739a759060de95449

          SHA256

          aed8b5066a9ffabec28e1fd5f34d6bc2247639e59bd58c71fdab6dd63ca46d27

          SHA512

          ed6b71a39043f689f170dd2b99154ecc41e5506cb1e8dd10630efdada5aa8881c72b48829476726d12ecc013d5c54aaa9953d818d899c7a78e7593ef1400605a

        • memory/2372-0-0x0000000001280000-0x0000000001326000-memory.dmp

          Filesize

          664KB

        • memory/2372-1-0x0000000073F20000-0x000000007460E000-memory.dmp

          Filesize

          6.9MB

        • memory/2372-2-0x0000000004E10000-0x0000000004E50000-memory.dmp

          Filesize

          256KB

        • memory/2372-3-0x0000000000430000-0x0000000000446000-memory.dmp

          Filesize

          88KB

        • memory/2372-4-0x0000000073F20000-0x000000007460E000-memory.dmp

          Filesize

          6.9MB

        • memory/2372-5-0x0000000004E10000-0x0000000004E50000-memory.dmp

          Filesize

          256KB

        • memory/2372-6-0x0000000000450000-0x0000000000460000-memory.dmp

          Filesize

          64KB

        • memory/2372-7-0x0000000005130000-0x00000000051AA000-memory.dmp

          Filesize

          488KB

        • memory/2372-38-0x0000000073F20000-0x000000007460E000-memory.dmp

          Filesize

          6.9MB

        • memory/2576-32-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2576-36-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2576-42-0x0000000001210000-0x0000000001250000-memory.dmp

          Filesize

          256KB

        • memory/2576-41-0x0000000073F20000-0x000000007460E000-memory.dmp

          Filesize

          6.9MB

        • memory/2576-37-0x0000000073F20000-0x000000007460E000-memory.dmp

          Filesize

          6.9MB

        • memory/2576-39-0x0000000001210000-0x0000000001250000-memory.dmp

          Filesize

          256KB

        • memory/2576-23-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2576-25-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2576-26-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2576-28-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2576-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2576-34-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2776-17-0x0000000002800000-0x0000000002840000-memory.dmp

          Filesize

          256KB

        • memory/2776-16-0x000000006E1B0000-0x000000006E75B000-memory.dmp

          Filesize

          5.7MB

        • memory/2776-15-0x000000006E1B0000-0x000000006E75B000-memory.dmp

          Filesize

          5.7MB

        • memory/2776-21-0x0000000002800000-0x0000000002840000-memory.dmp

          Filesize

          256KB

        • memory/2776-20-0x0000000002800000-0x0000000002840000-memory.dmp

          Filesize

          256KB

        • memory/2776-40-0x000000006E1B0000-0x000000006E75B000-memory.dmp

          Filesize

          5.7MB

        • memory/2776-19-0x000000006E1B0000-0x000000006E75B000-memory.dmp

          Filesize

          5.7MB

        • memory/2776-18-0x0000000002800000-0x0000000002840000-memory.dmp

          Filesize

          256KB