General

  • Target

    4293c1d8574dc87c58360d6bac3daa182f64f7785c9d41da5e0741d2b1817fc7

  • Size

    129KB

  • Sample

    230131-sfc78sgg95

  • MD5

    c213c49e447ed7c3448b714756864609

  • SHA1

    e161b010597d3399f287b93c4308ca1e2be73cfb

  • SHA256

    24d742d311756af20fbe3fa3eb97c0040f96e58925afeb89cc51db1fbc745642

  • SHA512

    f4b062552581fa9b736bc21f209305449374dd9683d0800b2a8e30e6533ce1f6c20f16353b897fb22046744b67e8c5e6e204b05ad9e0a2c1a90f82c4ffd1ee44

  • SSDEEP

    3072:sSx/0SYVWKgZe9tZEehI8/8sYBboQASNyg:7x/0hwbs93hv/NYBFNyg

Malware Config

Targets

    • Target

      4293c1d8574dc87c58360d6bac3daa182f64f7785c9d41da5e0741d2b1817fc7

    • Size

      132KB

    • MD5

      59ce0baba11893f90527fc951ac69912

    • SHA1

      5857a7dd621c4c3ebb0b5a3bec915d409f70d39f

    • SHA256

      4293c1d8574dc87c58360d6bac3daa182f64f7785c9d41da5e0741d2b1817fc7

    • SHA512

      c5b12797b477e5e5964a78766bb40b1c0d9fdfb8eef1f9aee3df451e3441a40c61d325bf400ba51048811b68e1c70a95f15e4166b7a65a4eca0c624864328647

    • SSDEEP

      3072:phNlHuBafLeBtfCzpta8xlBIOdVo3/4sxLJ10xioP:p3lOYoaja8xzx/0wsxzSi2

    • Modifies the Watchdog daemon

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

    • Writes file to system bin folder

    • Modifies hosts file

      Adds to hosts file used for mapping hosts to IP addresses.

    • Writes DNS configuration

      Writes data to DNS resolver config file.

    • Enumerates active TCP sockets

      Gets active TCP sockets from /proc virtual filesystem.

    • Modifies init.d

      Adds/modifies system service, likely for persistence.

    • Reads system routing table

      Gets active network interfaces from /proc virtual filesystem.

    • Creates a large amount of network flows

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

    • Reads system network configuration

      Uses contents of /proc filesystem to enumerate network settings.

    • Reads runtime system information

      Reads data from /proc virtual filesystem.

    • Writes file to tmp directory

      Malware often drops required files in the /tmp directory.

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hijack Execution Flow

1
T1574

Boot or Logon Autostart Execution

1
T1547

Privilege Escalation

Hijack Execution Flow

1
T1574

Boot or Logon Autostart Execution

1
T1547

Defense Evasion

Impair Defenses

1
T1562

Hijack Execution Flow

1
T1574

Discovery

System Network Connections Discovery

1
T1049

System Network Configuration Discovery

2
T1016

Network Service Scanning

1
T1046

Command and Control

Dynamic Resolution

1
T1568

Tasks