General

  • Target

    12013662c71da69de977c04cd7021f13a70cf7bed4ca6c82acbc100464d4b0ef

  • Size

    138KB

  • Sample

    230131-zvyaaacc7t

  • MD5

    6bbfe235cddd1e28751c0b644be5c0a7

  • SHA1

    e17abc2b95fe6768c4a613f4624930e93957077d

  • SHA256

    d07e67e8142f7d8cb66797443d8461e3306738aa0629bca7992d60fe6b963f4c

  • SHA512

    e9686f7e9e2875d937e6f38a985e69bacbdbf60880a7b7d28d4f48660c20ba6d19ec89c273680e1d55b4d991e0423bdf2aa05a550d8d5fe25b78f2d446c17bf8

  • SSDEEP

    3072:ssGHBg7pBcQx4JjCRFh0oF5pOnLECFVDBqVCNC7V92kYV6A7fXfJhVQfaR:sxgPcQWpGFh085UL1VDBubM6aPJhVQyR

Malware Config

Targets

    • Target

      12013662c71da69de977c04cd7021f13a70cf7bed4ca6c82acbc100464d4b0ef

    • Size

      300KB

    • MD5

      eec5c6c219535fba3a0492ea8118b397

    • SHA1

      292559e94f1c04b7d0c65d4a01bbbc5dc1ff6f21

    • SHA256

      12013662c71da69de977c04cd7021f13a70cf7bed4ca6c82acbc100464d4b0ef

    • SHA512

      3482c8324a18302f0f37b6e23ed85f24fff9f50bb568d8fd7461bf57f077a7c592f7a88bb2e1c398699958946d87bb93ab744d13a0003f9b879c15e6471f7400

    • SSDEEP

      6144:T2s/gAWuboqsJ9xcJxspJBqQgTuaJZRhVabE5wKSDP99zBa77oNsKqqfPqOJ:T2s/bW+UmJqBxAuaPRhVabEDSDP99zBT

    • 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.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • 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