c6f6ca23761292552e6ea5f12496dc9c73374be0c5f9d0b2142ca3ae0bb8fe14

General

Target

Mozi.mbdyntzkc
Size

126KB
MD5

849b165f28ae8b1cebe0c7430f44aff3
SHA1

1e3605f5a7c3b0ed8dd0333660e9b43431f395bd
SHA256

c6f6ca23761292552e6ea5f12496dc9c73374be0c5f9d0b2142ca3ae0bb8fe14
SHA512

5857d84597e7cda9c51e66630796577190184282c6a34474258bfb6a493d27d786a0e5f6edf0e3c82258ff4a526d295ae21601a8c2f51b947a6f4c6d6acb2f35

Score

9^/10

discovery persistence

Malware Config

Signatures

Contacts a large (2589) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046
Modifies the Watchdog daemon 1 TTPs
Malware like Mirai modify the Watchdog to prevent it restarting an infected system.

Impair Defenses
T1562

Modifies hosts file 1 IoCs

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

description	ioc
/etc/hosts	/etc/hosts

Writes DNS configuration 1 TTPs 1 IoCs

Writes data to DNS resolver config file.

Dynamic Resolution

T1568

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

description	ioc	Process
/proc/net/tcp	/proc/net/tcp	Mozi.mbdyntzkc

Modifies init.d 1 TTPs 1 IoCs

Adds/modifies system service, likely for persistence.

persistence

Boot or Logon Autostart Execution

T1547

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

Reads system routing table 1 TTPs 1 IoCs

Gets active network interfaces from /proc virtual filesystem.

System Network Configuration Discovery

T1016

description	ioc
/proc/net/route	/proc/net/route

Reads system network configuration 1 TTPs 3 IoCs

Uses contents of /proc filesystem to enumerate network settings.

System Network Configuration Discovery

T1016

description	ioc	Process
/proc/net/raw	/proc/net/raw	Mozi.mbdyntzkc
/proc/net/tcp	/proc/net/tcp	Mozi.mbdyntzkc
/proc/net/route	/proc/net/route	Process not Found

Reads runtime system information 2 IoCs

Reads data from /proc virtual filesystem.

description	ioc	Process
/proc/self/exe	/proc/self/exe	Mozi.mbdyntzkc
/proc/sys/vm/drop_caches	/proc/sys/vm/drop_caches	sh

Writes file to tmp directory 2 IoCs

Malware often drops required files in the /tmp directory.

description	ioc
/tmp/Mozi.mbdyntzkc	/tmp/Mozi.mbdyntzkc
/tmp/config	/tmp/config

./Mozi.mbdyntzkc
./Mozi.mbdyntzkc
1⤵
- Enumerates active TCP sockets
- Reads system network configuration
- Reads runtime system information
PID:325

/bin/sh
sh -c "echo 3 > /proc/sys/vm/drop_caches"
1⤵
- Reads runtime system information
PID:326

/bin/sh
sh -c "iptables -I INPUT -p tcp --dport 22 -j DROP"
1⤵
PID:335
- /sbin/iptables
  iptables -I INPUT -p tcp --dport 22 -j DROP
  2⤵
  PID:337

/bin/sh
sh -c "iptables -I INPUT -p udp --dport 40736 -j ACCEPT"
1⤵
PID:344
- /sbin/iptables
  iptables -I INPUT -p udp --dport 40736 -j ACCEPT
  2⤵
  PID:346

/bin/sh
sh -c "iptables -I INPUT -p tcp --dport 23 -j DROP"
1⤵
PID:345
- /sbin/iptables
  iptables -I INPUT -p tcp --dport 23 -j DROP
  2⤵
  PID:347

/bin/sh
sh -c "iptables -I INPUT -p tcp --dport 2323 -j DROP"
1⤵
PID:348
- /sbin/iptables
  iptables -I INPUT -p tcp --dport 2323 -j DROP
  2⤵
  PID:350

/bin/sh
sh -c "iptables -I OUTPUT -p udp --sport 40736 -j ACCEPT"
1⤵
PID:349
- /sbin/iptables
  iptables -I OUTPUT -p udp --sport 40736 -j ACCEPT
  2⤵
  PID:351

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --sport 22 -j DROP"
1⤵
PID:352
- /sbin/iptables
  iptables -I OUTPUT -p tcp --sport 22 -j DROP
  2⤵
  PID:354

/bin/sh
sh -c "iptables -I PREROUTING -t nat -p udp --dport 40736 -j ACCEPT"
1⤵
PID:353
- /sbin/iptables
  iptables -I PREROUTING -t nat -p udp --dport 40736 -j ACCEPT
  2⤵
  PID:356

/bin/sh
sh -c "iptables -I INPUT -p tcp --dport 55161 -j ACCEPT"
1⤵
PID:355
- /sbin/iptables
  iptables -I INPUT -p tcp --dport 55161 -j ACCEPT
  2⤵
  PID:357

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --sport 23 -j DROP"
1⤵
PID:358
- /sbin/iptables
  iptables -I OUTPUT -p tcp --sport 23 -j DROP
  2⤵
  PID:360

/bin/sh
sh -c "iptables -I POSTROUTING -t nat -p udp --sport 40736 -j ACCEPT"
1⤵
PID:368
- /sbin/iptables
  iptables -I POSTROUTING -t nat -p udp --sport 40736 -j ACCEPT
  2⤵
  PID:369

/bin/sh
sh -c "iptables -I INPUT -p tcp --dport 54155 -j ACCEPT"
1⤵
PID:370
- /sbin/iptables
  iptables -I INPUT -p tcp --dport 54155 -j ACCEPT
  2⤵
  PID:371

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --sport 54155 -j ACCEPT"
1⤵
PID:372
- /sbin/iptables
  iptables -I OUTPUT -p tcp --sport 54155 -j ACCEPT
  2⤵
  PID:373

/bin/sh
sh -c "iptables -I PREROUTING -t nat -p tcp --dport 54155 -j ACCEPT"
1⤵
PID:374
- /sbin/iptables
  iptables -I PREROUTING -t nat -p tcp --dport 54155 -j ACCEPT
  2⤵
  PID:375

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --sport 55161 -j ACCEPT"
1⤵
PID:376
- /sbin/iptables
  iptables -I OUTPUT -p tcp --sport 55161 -j ACCEPT
  2⤵
  PID:378

/bin/sh
sh -c "iptables -I POSTROUTING -t nat -p tcp --sport 54155 -j ACCEPT"
1⤵
PID:377
- /sbin/iptables
  iptables -I POSTROUTING -t nat -p tcp --sport 54155 -j ACCEPT
  2⤵
  PID:379

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --sport 2323 -j DROP"
1⤵
PID:380
- /sbin/iptables
  iptables -I OUTPUT -p tcp --sport 2323 -j DROP
  2⤵
  PID:381

/bin/sh
sh -c "iptables -I PREROUTING -t nat -p tcp --dport 55161 -j ACCEPT"
1⤵
PID:382
- /sbin/iptables
  iptables -I PREROUTING -t nat -p tcp --dport 55161 -j ACCEPT
  2⤵
  PID:383

/bin/sh
sh -c "iptables -I INPUT -p tcp --dport 58000 -j DROP"
1⤵
PID:384
- /sbin/iptables
  iptables -I INPUT -p tcp --dport 58000 -j DROP
  2⤵
  PID:386

/bin/sh
sh -c "iptables -I POSTROUTING -t nat -p tcp --sport 55161 -j ACCEPT"
1⤵
PID:385
- /sbin/iptables
  iptables -I POSTROUTING -t nat -p tcp --sport 55161 -j ACCEPT
  2⤵
  PID:387

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --sport 58000 -j DROP"
1⤵
PID:388
- /sbin/iptables
  iptables -I OUTPUT -p tcp --sport 58000 -j DROP
  2⤵
  PID:389

/bin/sh
sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer URL \"http://127.0.0.1\""
1⤵
PID:390

/bin/sh
sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer ConnectionRequestPassword \"acsMozi\""
1⤵
PID:391

/bin/sh
sh -c "iptables -I INPUT -p tcp --dport 35000 -j DROP"
1⤵
PID:392
- /sbin/iptables
  iptables -I INPUT -p tcp --dport 35000 -j DROP
  2⤵
  PID:393

/bin/sh
sh -c "iptables -I INPUT -p tcp --dport 50023 -j DROP"
1⤵
PID:395
- /sbin/iptables
  iptables -I INPUT -p tcp --dport 50023 -j DROP
  2⤵
  PID:397

/bin/sh
sh -c "echo 1"
1⤵
PID:398

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --sport 50023 -j DROP"
1⤵
PID:399
- /sbin/iptables
  iptables -I OUTPUT -p tcp --sport 50023 -j DROP
  2⤵
  PID:400

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --sport 35000 -j DROP"
1⤵
PID:401
- /sbin/iptables
  iptables -I OUTPUT -p tcp --sport 35000 -j DROP
  2⤵
  PID:402

/bin/sh
sh -c "iptables -I INPUT -p tcp --dport 7547 -j DROP"
1⤵
PID:403
- /sbin/iptables
  iptables -I INPUT -p tcp --dport 7547 -j DROP
  2⤵
  PID:404

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --sport 7547 -j DROP"
1⤵
PID:405
- /sbin/iptables
  iptables -I OUTPUT -p tcp --sport 7547 -j DROP
  2⤵
  PID:406

/bin/sh
sh -c "iptables -I INPUT -p udp --dport 8081 -j ACCEPT"
1⤵
PID:407
- /sbin/iptables
  iptables -I INPUT -p udp --dport 8081 -j ACCEPT
  2⤵
  PID:408

/bin/sh
sh -c "iptables -I OUTPUT -p udp --sport 8081 -j ACCEPT"
1⤵
PID:409
- /sbin/iptables
  iptables -I OUTPUT -p udp --sport 8081 -j ACCEPT
  2⤵
  PID:410

/bin/sh
sh -c "iptables -I PREROUTING -t nat -p udp --dport 8081 -j ACCEPT"
1⤵
PID:411
- /sbin/iptables
  iptables -I PREROUTING -t nat -p udp --dport 8081 -j ACCEPT
  2⤵
  PID:412

/bin/sh
sh -c "iptables -I POSTROUTING -t nat -p udp --sport 8081 -j ACCEPT"
1⤵
PID:413
- /sbin/iptables
  iptables -I POSTROUTING -t nat -p udp --sport 8081 -j ACCEPT
  2⤵
  PID:414