Analysis

  • max time kernel
    144s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    16-05-2022 01:54

General

  • Target

    b8a1ecdac45c0d6c815cc70031cb0549b3a8a4dec7adeb8b1e216549e52cbaa9.docm

  • Size

    195KB

  • MD5

    303f486490b099a40f8786abd53fb7f8

  • SHA1

    fb834998ffd0a056fc435270702609f66bf5b377

  • SHA256

    b8a1ecdac45c0d6c815cc70031cb0549b3a8a4dec7adeb8b1e216549e52cbaa9

  • SHA512

    eb3a1409ca7492a13a516016cc9b3a95cbc09ff9805432c75f3b4f4bb61855d1471ec56c6569eec459b1cb90658822574be74954615bfd7df8945807cdd4f7cb

Malware Config

Extracted

Family

metasploit

Version

windows/reverse_tcp

C2

192.168.2.81:4444

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • 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 use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 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\b8a1ecdac45c0d6c815cc70031cb0549b3a8a4dec7adeb8b1e216549e52cbaa9.docm"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\Users\Admin\AppData\Local\Temp\radB7603.tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\radB7603.tmp.exe"
      2⤵
      • Executes dropped EXE
      PID:1100
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1016

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\radB7603.tmp.exe

      Filesize

      72KB

      MD5

      b9bb353e5da0cc77030c12825657c3f8

      SHA1

      d7111c78f855d6316bb033107b4be8932b38575b

      SHA256

      bbb1eb88a95d05ef2f17b7ddb1529f82169a0836c93258693a58a9110e830e3f

      SHA512

      8840ced724a0638607e5cffe24fe26094d2b110932ef34529c9fecce3d42a1a2ac49cd5a200f6cdc1d53fe9b0c190a2b8313bbe04cea3c19f599d9f36063e9fc

    • \Users\Admin\AppData\Local\Temp\radB7603.tmp.exe

      Filesize

      72KB

      MD5

      b9bb353e5da0cc77030c12825657c3f8

      SHA1

      d7111c78f855d6316bb033107b4be8932b38575b

      SHA256

      bbb1eb88a95d05ef2f17b7ddb1529f82169a0836c93258693a58a9110e830e3f

      SHA512

      8840ced724a0638607e5cffe24fe26094d2b110932ef34529c9fecce3d42a1a2ac49cd5a200f6cdc1d53fe9b0c190a2b8313bbe04cea3c19f599d9f36063e9fc

    • \Users\Admin\AppData\Local\Temp\radB7603.tmp.exe

      Filesize

      72KB

      MD5

      b9bb353e5da0cc77030c12825657c3f8

      SHA1

      d7111c78f855d6316bb033107b4be8932b38575b

      SHA256

      bbb1eb88a95d05ef2f17b7ddb1529f82169a0836c93258693a58a9110e830e3f

      SHA512

      8840ced724a0638607e5cffe24fe26094d2b110932ef34529c9fecce3d42a1a2ac49cd5a200f6cdc1d53fe9b0c190a2b8313bbe04cea3c19f599d9f36063e9fc

    • memory/1016-80-0x000007FEFB6B1000-0x000007FEFB6B3000-memory.dmp

      Filesize

      8KB

    • memory/1016-79-0x0000000000000000-mapping.dmp

    • memory/1100-77-0x0000000000000000-mapping.dmp

    • memory/1624-58-0x0000000070CBD000-0x0000000070CC8000-memory.dmp

      Filesize

      44KB

    • memory/1624-59-0x00000000003A1000-0x00000000003A5000-memory.dmp

      Filesize

      16KB

    • memory/1624-62-0x00000000003A1000-0x00000000003A5000-memory.dmp

      Filesize

      16KB

    • memory/1624-63-0x00000000003A1000-0x00000000003A5000-memory.dmp

      Filesize

      16KB

    • memory/1624-67-0x00000000003A1000-0x00000000003A5000-memory.dmp

      Filesize

      16KB

    • memory/1624-71-0x00000000003A1000-0x00000000003A5000-memory.dmp

      Filesize

      16KB

    • memory/1624-60-0x00000000003A1000-0x00000000003A5000-memory.dmp

      Filesize

      16KB

    • memory/1624-61-0x00000000003A1000-0x00000000003A5000-memory.dmp

      Filesize

      16KB

    • memory/1624-54-0x0000000072251000-0x0000000072254000-memory.dmp

      Filesize

      12KB

    • memory/1624-57-0x0000000075C71000-0x0000000075C73000-memory.dmp

      Filesize

      8KB

    • memory/1624-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1624-55-0x000000006FCD1000-0x000000006FCD3000-memory.dmp

      Filesize

      8KB

    • memory/1624-81-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB