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Analysis

  • max time kernel
    47s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2022, 05:49

General

  • Target

    ea20057b28e9ec9541c7b11904c3023e908120376500148263b25e9883d7b9eb.dll

  • Size

    84KB

  • MD5

    a02d0b5ce100ae70166d059779fc0cbe

  • SHA1

    086790633091498460628a7d09065b997f0d8f1a

  • SHA256

    ea20057b28e9ec9541c7b11904c3023e908120376500148263b25e9883d7b9eb

  • SHA512

    297c1011d347ef1ca6c2190fce1d88d764f341a360162592783170b32555c5280d14177953535876f78e795ac774f14c623726f6a972ae59c37ff4c40b805e63

  • SSDEEP

    1536:XI6MkQBrH/00X4KNp/Itjz2JlrwTTPNoDwxcC6jHFv9FlF9BFfYRKYqgnqR:YKQBrHV1NxItPxO0xL6jHL/F9BRqKY5a

Malware Config

Signatures

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ea20057b28e9ec9541c7b11904c3023e908120376500148263b25e9883d7b9eb.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1768
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ea20057b28e9ec9541c7b11904c3023e908120376500148263b25e9883d7b9eb.dll,#1
      2⤵
      • Writes to the Master Boot Record (MBR)
      • Suspicious behavior: EnumeratesProcesses
      PID:1112

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1112-55-0x0000000076961000-0x0000000076963000-memory.dmp

    Filesize

    8KB

  • memory/1112-56-0x0000000000170000-0x0000000000179000-memory.dmp

    Filesize

    36KB

  • memory/1112-59-0x0000000000170000-0x0000000000179000-memory.dmp

    Filesize

    36KB