d546509ab6670f9ff31783ed72875dfc0f37fa2b666bd5870eecaaed2ebea4a8

General

Target

Mozi.mphcjjyht
Size

106KB
MD5

4dde761681684d7edad4e5e1ffdb940b
SHA1

2327be693bc11a618c380d7d3abc2382d870d48b
SHA256

d546509ab6670f9ff31783ed72875dfc0f37fa2b666bd5870eecaaed2ebea4a8
SHA512

91a61c719128f263f9f95736d55895954cc468c74ff469ee061d35ec382c50b9165e9a5427dc46a835dac6ae0e6e1f9819632475f68b98a907b53196bd4eb02a

Score

9^/10

discovery persistence

Malware Config

Signatures

Contacts a large (5675) 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

Writes file to system bin folder 1 TTPs 2 IoCs

Hijack Execution Flow

T1574

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

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
/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

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

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046

Reads system network configuration 1 TTPs 3 IoCs

Uses contents of /proc filesystem to enumerate network settings.

System Network Configuration Discovery

T1016

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

description	ioc
/tmp/Mozi.mphcjjyht	/tmp/Mozi.mphcjjyht
/tmp/config	/tmp/config

./Mozi.mphcjjyht
./Mozi.mphcjjyht
1⤵
PID:331

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 22 -j DROP"
1⤵
PID:338
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 22 -j DROP
  2⤵
  PID:339

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 23 -j DROP"
1⤵
PID:348
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 23 -j DROP
  2⤵
  PID:349

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 2323 -j DROP"
1⤵
PID:350
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 2323 -j DROP
  2⤵
  PID:351

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 22 -j DROP"
1⤵
PID:352
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 22 -j DROP
  2⤵
  PID:353

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 23 -j DROP"
1⤵
PID:354
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 23 -j DROP
  2⤵
  PID:355

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 2323 -j DROP"
1⤵
PID:356
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 2323 -j DROP
  2⤵
  PID:357

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 58000 -j DROP"
1⤵
PID:358
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 58000 -j DROP
  2⤵
  PID:359

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 58000 -j DROP"
1⤵
PID:360
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 58000 -j DROP
  2⤵
  PID:361

/bin/sh
sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer URL \"http://127.0.0.1\""
1⤵
PID:362

/bin/sh
sh -c "cfgtool set /mnt/jffs2/hw_ctree.xml InternetGatewayDevice.ManagementServer ConnectionRequestPassword \"acsMozi\""
1⤵
PID:363

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 35000 -j DROP"
1⤵
PID:364
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 35000 -j DROP
  2⤵
  PID:365

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 50023 -j DROP"
1⤵
PID:366
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 50023 -j DROP
  2⤵
  PID:367

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 50023 -j DROP"
1⤵
PID:368
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 50023 -j DROP
  2⤵
  PID:369

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 35000 -j DROP"
1⤵
PID:370
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 35000 -j DROP
  2⤵
  PID:371

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 7547 -j DROP"
1⤵
PID:372
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 7547 -j DROP
  2⤵
  PID:373

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 7547 -j DROP"
1⤵
PID:374
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 7547 -j DROP
  2⤵
  PID:375

/bin/sh
sh -c "iptables -I INPUT -p tcp --destination-port 55751 -j ACCEPT"
1⤵
PID:376
- /sbin/iptables
  iptables -I INPUT -p tcp --destination-port 55751 -j ACCEPT
  2⤵
  PID:377

/bin/sh
sh -c "iptables -I OUTPUT -p tcp --source-port 55751 -j ACCEPT"
1⤵
PID:378
- /sbin/iptables
  iptables -I OUTPUT -p tcp --source-port 55751 -j ACCEPT
  2⤵
  PID:379

/bin/sh
sh -c "iptables -I PREROUTING -t nat -p tcp --destination-port 55751 -j ACCEPT"
1⤵
PID:380
- /sbin/iptables
  iptables -I PREROUTING -t nat -p tcp --destination-port 55751 -j ACCEPT
  2⤵
  PID:381

/bin/sh
sh -c "iptables -I POSTROUTING -t nat -p tcp --source-port 55751 -j ACCEPT"
1⤵
PID:389
- /sbin/iptables
  iptables -I POSTROUTING -t nat -p tcp --source-port 55751 -j ACCEPT
  2⤵
  PID:390

/bin/sh
sh -c "iptables -I INPUT -p udp --destination-port 44748 -j ACCEPT"
1⤵
PID:391
- /sbin/iptables
  iptables -I INPUT -p udp --destination-port 44748 -j ACCEPT
  2⤵
  PID:392

/bin/sh
sh -c "iptables -I OUTPUT -p udp --source-port 44748 -j ACCEPT"
1⤵
PID:393
- /sbin/iptables
  iptables -I OUTPUT -p udp --source-port 44748 -j ACCEPT
  2⤵
  PID:394

/bin/sh
sh -c "iptables -I PREROUTING -t nat -p udp --destination-port 44748 -j ACCEPT"
1⤵
PID:395
- /sbin/iptables
  iptables -I PREROUTING -t nat -p udp --destination-port 44748 -j ACCEPT
  2⤵
  PID:396

/bin/sh
sh -c "iptables -I POSTROUTING -t nat -p udp --source-port 44748 -j ACCEPT"
1⤵
PID:397
- /sbin/iptables
  iptables -I POSTROUTING -t nat -p udp --source-port 44748 -j ACCEPT
  2⤵
  PID:398