Analysis

  • max time kernel
    7s
  • max time network
    39s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    18-06-2021 20:08

General

  • Target

    a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4.bin.exe

  • Size

    9KB

  • MD5

    8bf00ef4dd6bb308c76849901b03ccbd

  • SHA1

    04e8a8d30869cf60ad42825667224d5cd01ade15

  • SHA256

    a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4

  • SHA512

    551365e55dbe599a156d1de1e59e388878e13d3a491efe963fda241ec58c1c38aaf2d46775c4e1d3c46760d081561f9ab5be9468974e4693a9b3c60a4478b454

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\a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4.bin.exe"
    1⤵
    • Suspicious behavior: LoadsDriver
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1088
    • C:\Windows\SysWOW64\regini.exe
      "C:\Windows\System32\regini.exe" c.xalm
      2⤵
        PID:1500

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      MD5

      e4a1a575a3c19abc5ff8fd9f3fece159

      SHA1

      d15d4c436faeb642871c33932da2f31e265d200c

      SHA256

      60c77aa3a588cb9c807d934f0352fbedc9e64046a972f1ad9fdbf229c9158a26

      SHA512

      23f01e80234f19ce071646b978646279bc1d8f883248c405e2e10ac75d8f67fc08d4109fc87a7021ccec3ae083c53e78c62045383d25622115cd05b0e6972fff

    • memory/1088-59-0x0000000075561000-0x0000000075563000-memory.dmp

      Filesize

      8KB

    • memory/1500-60-0x0000000000000000-mapping.dmp