Overview

overview

9

Static

static

8

Mozi.mbdyntzkc

linux_mipsel

9

Sharing

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General

  • Target

    Mozi.mbdyntzkc

  • Size

    126KB

  • Sample

    220425-2q2s1sfgh6

  • MD5

    849b165f28ae8b1cebe0c7430f44aff3

  • SHA1

    1e3605f5a7c3b0ed8dd0333660e9b43431f395bd

  • SHA256

    c6f6ca23761292552e6ea5f12496dc9c73374be0c5f9d0b2142ca3ae0bb8fe14

  • SHA512

    5857d84597e7cda9c51e66630796577190184282c6a34474258bfb6a493d27d786a0e5f6edf0e3c82258ff4a526d295ae21601a8c2f51b947a6f4c6d6acb2f35

Score
9/10
discoverylinuxpersistence

Malware Config

Targets

    • Target

      Mozi.mbdyntzkc

    • Size

      126KB

    • MD5

      849b165f28ae8b1cebe0c7430f44aff3

    • SHA1

      1e3605f5a7c3b0ed8dd0333660e9b43431f395bd

    • SHA256

      c6f6ca23761292552e6ea5f12496dc9c73374be0c5f9d0b2142ca3ae0bb8fe14

    • SHA512

      5857d84597e7cda9c51e66630796577190184282c6a34474258bfb6a493d27d786a0e5f6edf0e3c82258ff4a526d295ae21601a8c2f51b947a6f4c6d6acb2f35

    Score
    9/10
    discoverypersistence

    • Contacts a large (2589) amount of remote hosts

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

      discovery

    • Modifies the Watchdog daemon

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

    • 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.

      persistence

    • Reads system routing table

      Gets active network interfaces from /proc virtual filesystem.

    • 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.

    behavioral1

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Defense Evasion

Impair Defenses

1
T1562

Credential Access

Discovery

Network Service Scanning

1
T1046

System Network Connections Discovery

1
T1049

System Network Configuration Discovery

2
T1016

Lateral Movement

Collection

Exfiltration

Command and Control

Dynamic Resolution

1
T1568

Impact

Tasks