Analysis

  • max time kernel
    0s
  • max time network
    46s
  • platform
    linux_mipsel
  • resource
    debian9-mipsel-en-20211208
  • resource tags

    arch:mipselimage:debian9-mipsel-en-20211208kernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
  • submitted
    27-02-2023 11:33

General

  • Target

    [MS].elf

  • Size

    415KB

  • MD5

    134022ec8a791d12ffeaab4a78262ef1

  • SHA1

    c5e64df54b1d71f94e9835423ff89e2c75537fd5

  • SHA256

    8c8a257bc47aff1b1629adb0709ded9d4e73016c24015623acc24c966b7535f6

  • SHA512

    4e301336610b35d531936c9ce057f681b6bbc5c9d0dda448aa2ced4976f2c68563dc0e221e660a428e9cfd757f8e124666b83a9ea54092d972f1cbc3d9e06ff1

  • SSDEEP

    12288:i18prykKI3s4/t2mws68n8LdDILvzsr3G1:i1yrykL3z/cmws68n8LdDILvzsr3G1

Score
9/10

Malware Config

Signatures

  • Modifies the Watchdog daemon 1 TTPs

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

  • Writes file to system bin folder 1 TTPs 4 IoCs
  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

  • Modifies rc script 1 TTPs 1 IoCs

    Adding/modifying system rc scripts is a common persistence mechanism.

  • Write file to user bin folder 1 TTPs 5 IoCs
  • Reads system network configuration 1 TTPs 1 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

Processes

  • /tmp/[MS].elf
    "/tmp/[MS].elf"
    1⤵
    • Writes file to system bin folder
    • Modifies rc script
    • Reads runtime system information
    PID:331

Network

MITRE ATT&CK Enterprise v6

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