Analysis

  • max time kernel
    14178s
  • max time network
    159s
  • platform
    linux_armhf
  • resource
    debian9-armhf-en-20211208
  • submitted
    21-05-2022 19:04

General

  • Target

    b2dfce90a8bc90275ffeaad5f01eb9940d492386d9fff13846058d9b94b06b98

  • Size

    141KB

  • MD5

    319890498d82b72cd35dd91989e5d24b

  • SHA1

    d72d8ea187e53d3a478a21392d4126044d95e45d

  • SHA256

    b2dfce90a8bc90275ffeaad5f01eb9940d492386d9fff13846058d9b94b06b98

  • SHA512

    98f401339f2fe459b2fcb9fdd4dbd92998b726cf686a8f40d539c96f917dfe3c9d1860ec23050796deed94af39d55d11bd3e428a217fc88a65b05e6be9dd584d

Score
9/10

Malware Config

Signatures

  • Contacts a large (18867) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • 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 2 IoCs
  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

  • Write file to user bin folder 1 TTPs 2 IoCs
  • Reads system network configuration 1 TTPs 1 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Reads runtime system information 42 IoCs

    Reads data from /proc virtual filesystem.

Processes

  • ./b2dfce90a8bc90275ffeaad5f01eb9940d492386d9fff13846058d9b94b06b98
    ./b2dfce90a8bc90275ffeaad5f01eb9940d492386d9fff13846058d9b94b06b98
    1⤵
      PID:354

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Hijack Execution Flow

    2
    T1574

    Privilege Escalation

    Hijack Execution Flow

    2
    T1574

    Defense Evasion

    Impair Defenses

    1
    T1562

    Hijack Execution Flow

    2
    T1574

    Discovery

    Network Service Scanning

    2
    T1046

    System Network Connections Discovery

    1
    T1049

    System Network Configuration Discovery

    1
    T1016

    Replay Monitor

    Loading Replay Monitor...

    Downloads