Analysis Overview
score
10/10
SHA256
66645f119cbaa36252f66cb8722d746a473373fbd2b950820eae410fba51e069
Threat Level: Known bad
The file arm was found to be: Known bad.
Malicious Activity Summary
Mirai family
Changes its process name
Deletes Audit logs
Deletes itself
Deletes system logs
Modifies Watchdog functionality
Deletes log files
Enumerates running processes
Reads runtime system information
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-19 15:31
Signatures
Mirai family
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-19 15:31
Reported
2024-04-19 15:35
Platform
debian9-armhf-20240226-en
Max time kernel
150s
Max time network
150s
Command Line
[/tmp/arm]
Signatures
Changes its process name
| Description | Indicator | Process | Target |
| Changes the process name, possibly in an attempt to hide itself | dsov8mp2pt0e28glhn7j | /tmp/arm | N/A |
Deletes Audit logs
| Description | Indicator | Process | Target |
| File deleted | /var/log/audit/audit.log | N/A | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | /tmp/arm | N/A |
Deletes system logs
| Description | Indicator | Process | Target |
| File deleted | /var/log/syslog | N/A | N/A |
| File deleted | /var/log/messages | N/A | N/A |
Modifies Watchdog functionality
| Description | Indicator | Process | Target |
| File opened for modification | /dev/misc/watchdog | /tmp/arm | N/A |
| File opened for modification | /dev/watchdog | /tmp/arm | N/A |
Deletes log files
| Description | Indicator | Process | Target |
| File deleted | /var/log/lastlog | N/A | N/A |
| File deleted | /var/log/auth.log | N/A | N/A |
| File deleted | /var/log/wtmp | N/A | N/A |
| File deleted | /var/log/daemon.log | N/A | N/A |
| File deleted | /var/log/kern.log | N/A | N/A |
Enumerates running processes
Reads runtime system information
| Description | Indicator | Process | Target |
| File opened for reading | /proc/663/cmdline | N/A | N/A |
| File opened for reading | /proc/700/cmdline | N/A | N/A |
| File opened for reading | /proc/723/cmdline | N/A | N/A |
| File opened for reading | /proc/724/cmdline | N/A | N/A |
| File opened for reading | /proc/753/cmdline | N/A | N/A |
| File opened for reading | /proc/8/cmdline | N/A | N/A |
| File opened for reading | /proc/26/cmdline | N/A | N/A |
| File opened for reading | /proc/652/cmdline | N/A | N/A |
| File opened for reading | /proc/842/cmdline | N/A | N/A |
| File opened for reading | /proc/857/cmdline | N/A | N/A |
| File opened for reading | /proc/839/cmdline | N/A | N/A |
| File opened for reading | /proc/888/cmdline | N/A | N/A |
| File opened for reading | /proc/13/cmdline | N/A | N/A |
| File opened for reading | /proc/745/cmdline | N/A | N/A |
| File opened for reading | /proc/781/cmdline | N/A | N/A |
| File opened for reading | /proc/794/cmdline | N/A | N/A |
| File opened for reading | /proc/799/cmdline | N/A | N/A |
| File opened for reading | /proc/836/cmdline | N/A | N/A |
| File opened for reading | /proc/859/cmdline | N/A | N/A |
| File opened for reading | /proc/886/cmdline | N/A | N/A |
| File opened for reading | /proc/22/cmdline | N/A | N/A |
| File opened for reading | /proc/23/cmdline | N/A | N/A |
| File opened for reading | /proc/691/cmdline | N/A | N/A |
| File opened for reading | /proc/796/cmdline | N/A | N/A |
| File opened for reading | /proc/814/cmdline | N/A | N/A |
| File opened for reading | /proc/818/cmdline | N/A | N/A |
| File opened for reading | /proc/832/cmdline | N/A | N/A |
| File opened for reading | /proc/871/cmdline | N/A | N/A |
| File opened for reading | /proc/17/cmdline | N/A | N/A |
| File opened for reading | /proc/24/cmdline | N/A | N/A |
| File opened for reading | /proc/710/cmdline | N/A | N/A |
| File opened for reading | /proc/806/cmdline | N/A | N/A |
| File opened for reading | /proc/837/cmdline | N/A | N/A |
| File opened for reading | /proc/12/cmdline | N/A | N/A |
| File opened for reading | /proc/27/cmdline | N/A | N/A |
| File opened for reading | /proc/213/cmdline | N/A | N/A |
| File opened for reading | /proc/659/cmdline | N/A | N/A |
| File opened for reading | /proc/683/cmdline | N/A | N/A |
| File opened for reading | /proc/707/cmdline | N/A | N/A |
| File opened for reading | /proc/811/cmdline | N/A | N/A |
| File opened for reading | /proc/41/cmdline | N/A | N/A |
| File opened for reading | /proc/136/cmdline | N/A | N/A |
| File opened for reading | /proc/646/cmdline | N/A | N/A |
| File opened for reading | /proc/752/cmdline | N/A | N/A |
| File opened for reading | /proc/760/cmdline | N/A | N/A |
| File opened for reading | /proc/815/cmdline | N/A | N/A |
| File opened for reading | /proc/7/cmdline | N/A | N/A |
| File opened for reading | /proc/10/cmdline | N/A | N/A |
| File opened for reading | /proc/721/cmdline | N/A | N/A |
| File opened for reading | /proc/737/cmdline | N/A | N/A |
| File opened for reading | /proc/276/cmdline | N/A | N/A |
| File opened for reading | /proc/651/cmdline | N/A | N/A |
| File opened for reading | /proc/716/cmdline | N/A | N/A |
| File opened for reading | /proc/277/cmdline | N/A | N/A |
| File opened for reading | /proc/809/cmdline | N/A | N/A |
| File opened for reading | /proc/813/cmdline | N/A | N/A |
| File opened for reading | /proc/828/cmdline | N/A | N/A |
| File opened for reading | /proc/829/cmdline | N/A | N/A |
| File opened for reading | /proc/2/cmdline | N/A | N/A |
| File opened for reading | /proc/28/cmdline | N/A | N/A |
| File opened for reading | /proc/74/cmdline | N/A | N/A |
| File opened for reading | /proc/793/cmdline | N/A | N/A |
| File opened for reading | /proc/835/cmdline | N/A | N/A |
| File opened for reading | /proc/685/cmdline | N/A | N/A |
Processes
/tmp/arm
[/tmp/arm]
Network
| Country | Destination | Domain | Proto |
| US | 1.1.1.1:53 | tcpdown.su | udp |
| US | 1.1.1.1:53 | tcpdown.su|�5 | udp |
| US | 1.1.1.1:53 | tcpdown.su|�5 | udp |
| US | 1.1.1.1:53 | tcpdown.su|�5 | udp |
| US | 1.1.1.1:53 | tcpdown.su|�5 | udp |
| US | 1.1.1.1:53 | tcpdown.su|�5 | udp |
| BG | 185.216.70.169:21425 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
| US | 104.168.45.11:7722 | tcpdown.su | tcp |
Files
N/A