Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    14/10/2024, 16:41

General

  • Target

    cartao.petrobras.exe

  • Size

    192KB

  • MD5

    e3eb71da07cd6a45b9797a72069c42f2

  • SHA1

    3cdc77312b3aff2bbe97ff344a7d64ed02cb9a23

  • SHA256

    59219bd48028cc39af0e10eb3aa7162263ea9fa1d2347a781f79508482fef5ef

  • SHA512

    009d297ce4bfb0794f94a1a0dc1c8cd647f9f7fea378794cf205639340a93986e648a17a4289e49afdd42876f88b99234c1c6b3f7018506d7534176c4530ef05

  • SSDEEP

    3072:zK2uLk3NqMZhRlGHsKjrdWPhwRkb3OaYjzIEAOjL4RH2YT1uBV:zRuQ3AMCbWPmKbzYHASLUHrT0B

Malware Config

Signatures

  • 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.

  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in Windows directory 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe
    "C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe"
    1⤵
    • Installs/modifies Browser Helper Object
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2324
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\System32\cmd.exe /k %windir%\System32\reg.exe ADDHKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System/v EnableLUA /t REG_DWORD /d 0 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2480
      • C:\Windows\SysWOW64\reg.exe
        C:\Windows\System32\reg.exe ADDHKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System/v EnableLUA /t REG_DWORD /d 0 /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2288
    • C:\Windows\SysWOW64\REGSVR32.EXE
      C:\Windows\system32\REGSVR32.EXE /s C:\Windows\npbg8573.dll
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2412

Network

        MITRE ATT&CK Enterprise v15

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        Downloads