Analysis

  • max time kernel
    146s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    19/04/2022, 02:24

General

  • Target
    ComplianceRep-840559179-Apr-18.xlsb
  • Size 1.4MB
  • Sample220419-cvpltabea3
  • SHA256 e9e549ab59dd8e852100b707713688b1e62681782717f784a70b4ff9e39c1298
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    http://146.70.87.163/44666,6175321759.dat

  • xlm40.dropper

    http://5.254.118.198/44666,6175321759.dat

  • xlm40.dropper

    http://91.194.11.15/44666,6175321759.dat

Signatures

  • Process spawned unexpected child process 4 IoCs

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

  • 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 use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 28 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\ComplianceRep-840559179-Apr-18.xlsb
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1980
    • C:\Windows\SysWOW64\Regsvr32.exe
      Regsvr32 /s calc
      2⤵
      • Process spawned unexpected child process
      PID:1428
    • C:\Windows\SysWOW64\Regsvr32.exe
      Regsvr32 C:\ProgramData\Dis.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1176
    • C:\Windows\SysWOW64\Regsvr32.exe
      Regsvr32 C:\ProgramData\Disa.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1420
    • C:\Windows\SysWOW64\Regsvr32.exe
      Regsvr32 C:\ProgramData\Disb.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:432

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1980-54-0x000000002FD31000-0x000000002FD34000-memory.dmp

        memory/1980-55-0x0000000071861000-0x0000000071863000-memory.dmp

        memory/1980-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1980-57-0x000000007284D000-0x0000000072858000-memory.dmp

        memory/1980-58-0x00000000768D1000-0x00000000768D3000-memory.dmp