Analysis

  • max time kernel
    14176s
  • max time network
    153s
  • platform
    linux_mips
  • resource
    debian9-mipsbe-en-20211208
  • submitted
    21-05-2022 19:02

General

  • Target

    a3a0ca1807dc2ae6cf437b60700e59e3bc72c8bf40fddc771fb6a9d76bc04109

  • Size

    38KB

  • MD5

    47bc35db5ed75f0c70a45d97b6291717

  • SHA1

    081d0d221f4a2af4f1efd0a51af6ff353c629805

  • SHA256

    a3a0ca1807dc2ae6cf437b60700e59e3bc72c8bf40fddc771fb6a9d76bc04109

  • SHA512

    70f76a1455bcb3c1fc82467e6f8a30389d97bb6fc1416c97bcdbaf5ec2e363640b72b5f9008ab6a98e407d4dfdc3d8bcc809a4f353d37718361aebc0fd73bcf0

Score
9/10

Malware Config

Signatures

  • Contacts a large (112297) 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 1 IoCs
  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

  • Reads system network configuration 1 TTPs 1 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Reads runtime system information 3 IoCs

    Reads data from /proc virtual filesystem.

Processes

  • ./a3a0ca1807dc2ae6cf437b60700e59e3bc72c8bf40fddc771fb6a9d76bc04109
    ./a3a0ca1807dc2ae6cf437b60700e59e3bc72c8bf40fddc771fb6a9d76bc04109
    1⤵
    • Reads runtime system information
    PID:324

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hijack Execution Flow

1
T1574

Privilege Escalation

Hijack Execution Flow

1
T1574

Defense Evasion

Impair Defenses

1
T1562

Hijack Execution Flow

1
T1574

Discovery

Network Service Scanning

2
T1046

System Network Connections Discovery

1
T1049

System Network Configuration Discovery

1
T1016

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