General

  • Target

    6cef4e41b58be6fb4e2dd50c783c0c87.bin

  • Size

    272KB

  • Sample

    240426-bqnchsgh66

  • MD5

    ba16485b8a2e921c3a573fbb1bebaa90

  • SHA1

    3d2bf14790b45b21256b3f6d73daa4ff958e09ee

  • SHA256

    94f559b08a30ec35a058b6c39eb667e7df454a5a874c37ae13c43f454211e5df

  • SHA512

    d8710f728637a6afcd79cda403ea20b15074eaba5b67f170afbec9de37b726d31de1b891857bbaf8fa1088c944e0c76173464f979c7a74a56a5affac451cc22c

  • SSDEEP

    6144:hixyWp8N4k2OroOBewT1/CnbpbvAhodnxLQNQ75ri4nx:hisV4I2nxvtvQNQFiSx

Malware Config

Extracted

Family

mirai

Botnet

LZRD

Targets

    • Target

      4730105d00af6296688da0b51f3b9be8ea81a4844a3a1d9996256fc218920f28.elf

    • Size

      274KB

    • MD5

      6cef4e41b58be6fb4e2dd50c783c0c87

    • SHA1

      fd5ded3422f64c3930e6541bd54dfb1083916f66

    • SHA256

      4730105d00af6296688da0b51f3b9be8ea81a4844a3a1d9996256fc218920f28

    • SHA512

      fbdd467bbf0a3b3cec9564075bfd5d977900acb502d1c15bfb9ba6920bea3cda92c62f15cf50c7335ffb43d6046581c0020a90cec3b6227b61a6b93135e5fe42

    • SSDEEP

      6144:Uxc6tV4HX2TmFGR+WgB+Pjq32p5PPyMwsUpE9BNKaOA5IsY/Vi5iaL:KUtm+5QPjq3SIpLaOAGNK

    • Mirai

      Mirai is a prevalent Linux malware infecting exposed network devices.

    • Modifies Watchdog functionality

      Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

    • Reads EFI boot settings

      Reads EFI boot settings from the efivars filesystem, may contain security secrets or sensitive data.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Creates/modifies Cron job

      Cron allows running tasks on a schedule, and is commonly used for malware persistence.

    • Modifies init.d

      Adds/modifies system service, likely for persistence.

    • Modifies systemd

      Adds/ modifies systemd service files. Likely to achieve persistence.

    • Writes file to system bin folder

MITRE ATT&CK Enterprise v15

Tasks