6e485b68121fb61ce8deda75ceb056fb473bee3c3c2e0a76d09b09c6d5f8fc2b

General

Target

a04ac6d98ad989312783d4fe3456c53730b212c79a426fb215708b6c6daa3de3
Size

78KB
MD5

9b6c3518a91d23ed77504b5416bfb5b3
SHA1

0a2d170abbf5031566377b01431e3b82d342630a
SHA256

a04ac6d98ad989312783d4fe3456c53730b212c79a426fb215708b6c6daa3de3
SHA512

b2b08d5d5e6c6708d88b793e9340a780d47b5dce61e0a3026b4cdea8a9e4cbf9824037255e4ea4a40fee5bce956485232376d4677ce72ccb6c7f00badd09956e
SSDEEP

1536:87vbq1lGAXSEYQjbChaAU2yU23M51DjZgSQAvcYkFtZTjzBht5:8D+CAXFYQChaAUk5ljnQssL

Score

9^/10

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
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
Reads system routing table 1 TTPs 1 IoCs
Gets active network interfaces from /proc virtual filesystem.

System Network Configuration Discovery
T1016

Processes:

a04ac6d98ad989312783d4fe3456c53730b212c79a426fb215708b6c6daa3de3

description ioc process

/proc/net/route /proc/net/route a04ac6d98ad989312783d4fe3456c53730b212c79a426fb215708b6c6daa3de3

description	ioc
/etc/hosts	/etc/hosts

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

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

Reads system network configuration 1 TTPs 3 IoCs

Uses contents of /proc filesystem to enumerate network settings.

System Network Configuration Discovery

T1016

Processes:

a04ac6d98ad989312783d4fe3456c53730b212c79a426fb215708b6c6daa3de3

description	ioc	process
/proc/net/route	/proc/net/route	a04ac6d98ad989312783d4fe3456c53730b212c79a426fb215708b6c6daa3de3
/proc/net/tcp	/proc/net/tcp
/proc/net/tcp6	/proc/net/tcp6

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

Processes:

description	ioc
/proc/23/cmdline	/proc/23/cmdline
/proc/312/cmdline	/proc/312/cmdline
/proc/233/cmdline	/proc/233/cmdline
/proc/217/cmdline	/proc/217/cmdline
/proc/113/cmdline	/proc/113/cmdline
/proc/80/cmdline	/proc/80/cmdline
/proc/43/cmdline	/proc/43/cmdline
/proc/24/cmdline	/proc/24/cmdline
/proc/315/cmdline	/proc/315/cmdline
/proc/15/cmdline	/proc/15/cmdline
/proc/6/cmdline	/proc/6/cmdline
/proc/1/cmdline	/proc/1/cmdline
/proc/314/cmdline	/proc/314/cmdline
/proc/308/fd	/proc/308/fd
/proc/9/cmdline	/proc/9/cmdline
/proc/314/fd	/proc/314/fd
/proc/283/cmdline	/proc/283/cmdline
/proc/238/fd	/proc/238/fd
/proc/169/fd	/proc/169/fd
/proc/13/cmdline	/proc/13/cmdline
/proc/7/cmdline	/proc/7/cmdline
/proc/356/fd	/proc/356/fd
/proc/279/fd	/proc/279/fd
/proc/157/cmdline	/proc/157/cmdline
/proc/25/cmdline	/proc/25/cmdline
/proc/16/cmdline	/proc/16/cmdline
/proc/4/cmdline	/proc/4/cmdline
/proc/355/fd	/proc/355/fd
/proc/234/cmdline	/proc/234/cmdline
/proc/21/cmdline	/proc/21/cmdline
/proc/8/cmdline	/proc/8/cmdline
/proc/355/cmdline	/proc/355/cmdline
/proc/312/fd	/proc/312/fd
/proc/283/fd	/proc/283/fd
/proc/279/cmdline	/proc/279/cmdline
/proc/233/fd	/proc/233/fd
/proc/152/cmdline	/proc/152/cmdline
/proc/41/cmdline	/proc/41/cmdline
/proc/17/cmdline	/proc/17/cmdline
/proc/315/fd	/proc/315/fd
/proc/236/fd	/proc/236/fd
/proc/42/cmdline	/proc/42/cmdline
/proc/22/cmdline	/proc/22/cmdline
/proc/18/cmdline	/proc/18/cmdline
/proc/10/cmdline	/proc/10/cmdline
/proc/308/cmdline	/proc/308/cmdline
/proc/14/cmdline	/proc/14/cmdline
/proc/28/cmdline	/proc/28/cmdline
/proc/139/cmdline	/proc/139/cmdline
/proc/110/cmdline	/proc/110/cmdline
/proc/1/fd	/proc/1/fd
/proc/169/cmdline	/proc/169/cmdline
/proc/147/cmdline	/proc/147/cmdline
/proc/27/cmdline	/proc/27/cmdline
/proc/11/cmdline	/proc/11/cmdline
/proc/238/cmdline	/proc/238/cmdline
/proc/280/fd	/proc/280/fd
/proc/234/fd	/proc/234/fd
/proc/147/fd	/proc/147/fd
/proc/20/cmdline	/proc/20/cmdline
/proc/19/cmdline	/proc/19/cmdline
/proc/351/cmdline	/proc/351/cmdline
/proc/356/cmdline	/proc/356/cmdline
/proc/280/cmdline	/proc/280/cmdline

Writes file to tmp directory 3 IoCs

Malware often drops required files in the /tmp directory.

Processes:

description	ioc
/tmp/ftpupdate.sh	/tmp/ftpupdate.sh
/tmp/ftpupload.sh	/tmp/ftpupload.sh
/tmp/a04ac6d98ad989312783d4fe3456c53730b212c79a426fb215708b6c6daa3de3	/tmp/a04ac6d98ad989312783d4fe3456c53730b212c79a426fb215708b6c6daa3de3

/tmp/a04ac6d98ad989312783d4fe3456c53730b212c79a426fb215708b6c6daa3de3
/tmp/a04ac6d98ad989312783d4fe3456c53730b212c79a426fb215708b6c6daa3de3
1⤵
- Reads system routing table
- Reads system network configuration
PID:353

/bin/sh
/bin/sh -c "iptables -A INPUT -p tcp --destination-port 23 -j DROP"
1⤵
PID:361
- /sbin/iptables
  iptables -A INPUT -p tcp --destination-port 23 -j DROP
  2⤵
  PID:362

/bin/sh
/bin/sh -c "iptables -A INPUT -p tcp --destination-port 7547 -j DROP"
1⤵
PID:367
- /sbin/iptables
  iptables -A INPUT -p tcp --destination-port 7547 -j DROP
  2⤵
  PID:368

/bin/sh
/bin/sh -c "iptables -A INPUT -p tcp --destination-port 5555 -j DROP"
1⤵
PID:369
- /sbin/iptables
  iptables -A INPUT -p tcp --destination-port 5555 -j DROP
  2⤵
  PID:370

/bin/sh
/bin/sh -c "iptables -A INPUT -p tcp --destination-port 5358 -j DROP"
1⤵
PID:371
- /sbin/iptables
  iptables -A INPUT -p tcp --destination-port 5358 -j DROP
  2⤵
  PID:372

/bin/sh
/bin/sh -c "iptables -D INPUT -j CWMP_CR"
1⤵
PID:373
- /sbin/iptables
  iptables -D INPUT -j CWMP_CR
  2⤵
  PID:374

/bin/sh
/bin/sh -c "iptables -X CWMP_CR"
1⤵
PID:375
- /sbin/iptables
  iptables -X CWMP_CR
  2⤵
  PID:376

/bin/sh
/bin/sh -c "iptables -I INPUT -p udp --dport 36918 -j ACCEPT"
1⤵
PID:377
- /sbin/iptables
  iptables -I INPUT -p udp --dport 36918 -j ACCEPT
  2⤵
  PID:378