General

  • Target

    9e0a15a4318e3e788bad61398b8a40d4916d63ab27b47f3bdbe329c462193600

  • Size

    129KB

  • Sample

    230131-1hwflaae84

  • MD5

    c66642bf7b29194380b1acf90c550779

  • SHA1

    e1b4434a7e065d7136069860a1a414ed82b75c03

  • SHA256

    267bf3b9defc52d817c57d30241fbcdea849c2669974d08d514997cce2e3e60b

  • SHA512

    7d0f331aeedbcdf901e68770c96973eb0a74fd986fd17e00dedda2d9050e342ccabd7693d55e22fe91652aae15b93290251f6cc4031e1a71efa1c5c04d1023ac

  • SSDEEP

    3072:ArxiW/pi6qsnTwKf5guCQo3J2Ex1wZnHuUzeLSeTQj:i3Bi6d77g8iCnxyWB

Malware Config

Targets

    • Target

      9e0a15a4318e3e788bad61398b8a40d4916d63ab27b47f3bdbe329c462193600

    • Size

      131KB

    • MD5

      3313e9cc72e7cf75851dc62b84ca932c

    • SHA1

      b5f914ad11626070f6cf466069c8d5d9ee25f5bb

    • SHA256

      9e0a15a4318e3e788bad61398b8a40d4916d63ab27b47f3bdbe329c462193600

    • SHA512

      7c3f1cce6b3b2b0464382ad923076da3a2e81463ed25a8d1979caa7c7305ad6681d1df32893c9c973ac6a897f6d638720ed7d73dda5b06c99c1fe669d98960da

    • SSDEEP

      3072:YpPb16aDVPfKxQZHYz02ROYgym0pv9k3TakVC1ecQTKnQR:iPZfDlCuuQVp0nk3TaeC8czu

    • 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