Analysis

  • max time kernel
    14s
  • max time network
    17s
  • platform
    debian-9_mips
  • resource
    debian9-mipsbe-20221125-en
  • resource tags

    arch:mipsimage:debian9-mipsbe-20221125-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
  • submitted
    01-07-2023 08:28

General

  • Target

    bin.sh

  • Size

    132KB

  • MD5

    a73ddd6ec22462db955439f665cad4e6

  • SHA1

    ac6962542a4b23ac13bddff22f8df9aeb702ef12

  • SHA256

    b5cf68c7cb5bb2d21d60bf6654926f61566d95bfd7c9f9e182d032f1da5b4605

  • SHA512

    92a52f68a7324c4d5876e1f7e2cb87d14b8604b057ceee2e537815568faa96abf576a22111c5c976eff72ab9015f1261b2331d4b4d711f4e62c8eb403c2377aa

  • SSDEEP

    3072:2glZ3FtCKXhkmHtZ9TEKzjfj/WMngyIfsJ0F7xPtoM:2IIKXhZtL7jOTyIG87Xl

Score
7/10

Malware Config

Signatures

  • Changes its process name 1 IoCs
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

  • Reads system routing table 1 TTPs 1 IoCs

    Gets active network interfaces from /proc virtual filesystem.

  • Writes file to system bin folder 1 TTPs 2 IoCs
  • Reads system network configuration 1 TTPs 3 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Reads runtime system information 1 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to tmp directory 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bin.sh
    /tmp/bin.sh
    1⤵
    • Enumerates active TCP sockets
    • Reads system network configuration
    • Reads runtime system information
    • Writes file to tmp directory
    PID:325
  • /bin/sh
    sh -c "killall -9 telnetd utelnetd scfgmgr"
    1⤵
      PID:329

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/325-1-0x00400000-0x004c1f18-memory.dmp