d546509ab6670f9ff31783ed72875dfc0f37fa2b666bd5870eecaaed2ebea4a8

General

Target

mozi.m
Size

106KB
MD5

4dde761681684d7edad4e5e1ffdb940b
SHA1

2327be693bc11a618c380d7d3abc2382d870d48b
SHA256

d546509ab6670f9ff31783ed72875dfc0f37fa2b666bd5870eecaaed2ebea4a8
SHA512

91a61c719128f263f9f95736d55895954cc468c74ff469ee061d35ec382c50b9165e9a5427dc46a835dac6ae0e6e1f9819632475f68b98a907b53196bd4eb02a
SSDEEP

1536:3aQiZDMyqIlMBZ/R0F4E4kcHiNq98wk9njKZjjLuYo68864sNHFEzv7Ld76divkE:KzDMyqIMBZ/R0ufhBmgZy9yNsNmPtcE

Score

9^/10

discovery persistence

Malware Config

Signatures

Modifies the Watchdog daemon 1 TTPs
Malware like Mirai modify the Watchdog to prevent it restarting an infected system.

Impair Defenses
T1562

Writes file to system bin folder 1 TTPs 2 IoCs

Hijack Execution Flow

T1574

Processes:

description	ioc
/sbin/watchdog	/sbin/watchdog
/bin/watchdog	/bin/watchdog

Contacts a large (755) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046

Modifies hosts file 1 IoCs

Adds to hosts file used for mapping hosts to IP addresses.

Processes:

description	ioc
/etc/hosts	/etc/hosts

Writes DNS configuration 1 TTPs 1 IoCs

Writes data to DNS resolver config file.

Dynamic Resolution

T1568

Processes:

description	ioc
/etc/resolv.conf	/etc/resolv.conf

Enumerates active TCP sockets 1 TTPs 1 IoCs

Gets active TCP sockets from /proc virtual filesystem.

System Network Connections Discovery

T1049

Processes:

description	ioc
/proc/net/tcp	/proc/net/tcp

Modifies init.d 1 TTPs 1 IoCs

Adds/modifies system service, likely for persistence.

persistence

Boot or Logon Autostart Execution

T1547

Processes:

description	ioc
/etc/init.d/S95baby.sh	/etc/init.d/S95baby.sh

Reads system network configuration 1 TTPs 2 IoCs

Uses contents of /proc filesystem to enumerate network settings.

System Network Configuration Discovery

T1016

Processes:

description	ioc
/proc/net/raw	/proc/net/raw
/proc/net/tcp	/proc/net/tcp

Writes file to tmp directory 2 IoCs

Malware often drops required files in the /tmp directory.

Processes:

description	ioc
/tmp/mozi.m	/tmp/mozi.m
/tmp/config	/tmp/config

/tmp/mozi.m
/tmp/mozi.m
1⤵
PID:324

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 22 -j DROP"
1⤵
PID:331
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 22 -j DROP
  2⤵
  PID:332

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 23 -j DROP"
1⤵
PID:340
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 23 -j DROP
  2⤵
  PID:341

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 2323 -j DROP"
1⤵
PID:342
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 2323 -j DROP
  2⤵
  PID:343

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 22 -j DROP"
1⤵
PID:344
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 22 -j DROP
  2⤵
  PID:345

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 23 -j DROP"
1⤵
PID:346
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 23 -j DROP
  2⤵
  PID:347

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 2323 -j DROP"
1⤵
PID:348
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 2323 -j DROP
  2⤵
  PID:349

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 58000 -j DROP"
1⤵
PID:350
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 58000 -j DROP
  2⤵
  PID:351

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 58000 -j DROP"
1⤵
PID:352
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 58000 -j DROP
  2⤵
  PID:353

/bin/sh
sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer URL \"http://127.0.0.1\""
1⤵
PID:354

/bin/sh
sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer ConnectionRequestPassword \"acsMozi\""
1⤵
PID:355

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 35000 -j DROP"
1⤵
PID:356
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 35000 -j DROP
  2⤵
  PID:357

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 50023 -j DROP"
1⤵
PID:358
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 50023 -j DROP
  2⤵
  PID:359

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 50023 -j DROP"
1⤵
PID:360
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 50023 -j DROP
  2⤵
  PID:361

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 35000 -j DROP"
1⤵
PID:362
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 35000 -j DROP
  2⤵
  PID:363

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 7547 -j DROP"
1⤵
PID:364
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 7547 -j DROP
  2⤵
  PID:365

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 7547 -j DROP"
1⤵
PID:366
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 7547 -j DROP
  2⤵
  PID:367

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 58149 -j ACCEPT"
1⤵
PID:368
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 58149 -j ACCEPT
  2⤵
  PID:369

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 58149 -j ACCEPT"
1⤵
PID:370
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 58149 -j ACCEPT
  2⤵
  PID:371

/bin/sh
sh -c "iptables -I PREROUTING -t nat -p tcp --destination-port 58149 -j ACCEPT"
1⤵
PID:372
- /sbin/iptables
  iptables -I PREROUTING -t nat -p tcp --destination-port 58149 -j ACCEPT
  2⤵
  PID:373

/bin/sh
sh -c "iptables -I POSTROUTING -t nat -p tcp --source-port 58149 -j ACCEPT"
1⤵
PID:382
- /sbin/iptables
  iptables -I POSTROUTING -t nat -p tcp --source-port 58149 -j ACCEPT
  2⤵
  PID:383

/bin/sh
sh -c "iptables -I INPUT -p udp --destination-port 17126 -j ACCEPT"
1⤵
PID:384
- /sbin/iptables
  iptables -I INPUT -p udp --destination-port 17126 -j ACCEPT
  2⤵
  PID:385

/bin/sh
sh -c "iptables -I OUTPUT -p udp --source-port 17126 -j ACCEPT"
1⤵
PID:386
- /sbin/iptables
  iptables -I OUTPUT -p udp --source-port 17126 -j ACCEPT
  2⤵
  PID:387

/bin/sh
sh -c "iptables -I PREROUTING -t nat -p udp --destination-port 17126 -j ACCEPT"
1⤵
PID:388
- /sbin/iptables
  iptables -I PREROUTING -t nat -p udp --destination-port 17126 -j ACCEPT
  2⤵
  PID:389

/bin/sh
sh -c "iptables -I POSTROUTING -t nat -p udp --source-port 17126 -j ACCEPT"
1⤵
PID:390
- /sbin/iptables
  iptables -I POSTROUTING -t nat -p udp --source-port 17126 -j ACCEPT
  2⤵
  PID:391