Resubmissions

11-06-2024 14:52

240611-r82wma1fmr 10

02-03-2022 18:01

220302-wlw43sfgh8 10

Analysis

  • max time kernel
    4294198s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    02-03-2022 18:01

General

  • Target

    13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll

  • Size

    219KB

  • MD5

    ecce8845921a91854ab34bff2623151e

  • SHA1

    736a4cfad1ed83a6a0b75b0474d5e01a3a36f950

  • SHA256

    13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033

  • SHA512

    36fda34df70629d054a55823a3cc83f9599446b36576fbc86a6aac6564460789e8b141eeb168d3e4578f28182da874dd840e57b642af1a1a315dfe08a17b53e0

Score
6/10

Malware Config

Signatures

  • Drops desktop.ini file(s) 25 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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.

  • Drops file in Program Files directory 64 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1664
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll,#1
      2⤵
      • Drops desktop.ini file(s)
      • Enumerates connected drives
      • Writes to the Master Boot Record (MBR)
      • Drops file in Program Files directory
      PID:1092
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 1276 -s 2648
    1⤵
    • Program crash
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:836

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/836-55-0x000007FEFC381000-0x000007FEFC383000-memory.dmp

    Filesize

    8KB

  • memory/836-56-0x0000000001CF0000-0x0000000001CF1000-memory.dmp

    Filesize

    4KB

  • memory/1092-54-0x0000000075801000-0x0000000075803000-memory.dmp

    Filesize

    8KB