General

  • Target

    12013662c71da69de977c04cd7021f13a70cf7bed4ca6c82acbc100464d4b0ef

  • Size

    138KB

  • Sample

    230131-1akn5aae45

  • MD5

    b70aa6165c642c10bb69e5ee9a9ca489

  • SHA1

    985b3a0051b7f56b7575e4db05b95f39fe936a6f

  • SHA256

    9bf1974962e4937fe5de83a9a0bf01007a2c1fd80dc1c8230d664dc8716fdce1

  • SHA512

    f9232bb56efabc72e3d549b1cb122a9221f9e4926974b153704c0a8acac7383c53e2cb2c1d170c39b0ee87e2db7da5fe61f2cc9e6b362c67685e6094a4414ef2

  • SSDEEP

    3072:8sGHBg7pBcQx4JjCRFh0oF5pOnLECFVDBqVCNC7V92kYV6A7fXfJhVQfah:8xgPcQWpGFh085UL1VDBubM6aPJhVQyh

Malware Config

Targets

    • Target

      12013662c71da69de977c04cd7021f13a70cf7bed4ca6c82acbc100464d4b0ef

    • Size

      300KB

    • MD5

      eec5c6c219535fba3a0492ea8118b397

    • SHA1

      292559e94f1c04b7d0c65d4a01bbbc5dc1ff6f21

    • SHA256

      12013662c71da69de977c04cd7021f13a70cf7bed4ca6c82acbc100464d4b0ef

    • SHA512

      3482c8324a18302f0f37b6e23ed85f24fff9f50bb568d8fd7461bf57f077a7c592f7a88bb2e1c398699958946d87bb93ab744d13a0003f9b879c15e6471f7400

    • SSDEEP

      6144:T2s/gAWuboqsJ9xcJxspJBqQgTuaJZRhVabE5wKSDP99zBa77oNsKqqfPqOJ:T2s/bW+UmJqBxAuaPRhVabEDSDP99zBT

    • Creates a large amount of network flows

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

    • 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.

    • 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

Network Service Scanning

1
T1046

System Network Connections Discovery

1
T1049

System Network Configuration Discovery

2
T1016

Command and Control

Dynamic Resolution

1
T1568

Tasks