Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    18-06-2021 21:20

General

  • Target

    cb8e536680732b474a5c26970ace2087667622caa3dd82c1c56731a7c5a1c8ce.bin.exe

  • Size

    114KB

  • MD5

    400c1c6312f99e4640077994bbfaedde

  • SHA1

    657a875554b075eb7f2d314bbbe967c789624b30

  • SHA256

    cb8e536680732b474a5c26970ace2087667622caa3dd82c1c56731a7c5a1c8ce

  • SHA512

    00b05036757e558c3d210f838dce3c8b2b4808655263cc1d69bf21a78e93f6ad52b6a20a4d68ac033fdf06eecc334690190f38e8435dc64fab3d64b7fc1d5c96

Malware Config

Signatures

  • NetFilter

    NetFilter is a rootkit first seen in June 2021.

  • Downloads MZ/PE file
  • Sets service image path in registry 2 TTPs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cb8e536680732b474a5c26970ace2087667622caa3dd82c1c56731a7c5a1c8ce.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\cb8e536680732b474a5c26970ace2087667622caa3dd82c1c56731a7c5a1c8ce.bin.exe"
    1⤵
    • Suspicious behavior: LoadsDriver
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:788
    • C:\Windows\SysWOW64\regini.exe
      "C:\Windows\System32\regini.exe" configure.xalm
      2⤵
        PID:1580

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\configure.xalm

      MD5

      e4a1a575a3c19abc5ff8fd9f3fece159

      SHA1

      d15d4c436faeb642871c33932da2f31e265d200c

      SHA256

      60c77aa3a588cb9c807d934f0352fbedc9e64046a972f1ad9fdbf229c9158a26

      SHA512

      23f01e80234f19ce071646b978646279bc1d8f883248c405e2e10ac75d8f67fc08d4109fc87a7021ccec3ae083c53e78c62045383d25622115cd05b0e6972fff

    • memory/788-60-0x0000000075AA1000-0x0000000075AA3000-memory.dmp

      Filesize

      8KB

    • memory/1580-61-0x0000000000000000-mapping.dmp