Analysis
- max time kernel
149s - max time network
154s - platform
debian-12_armhf - resource
debian12-armhf-20260513-en - resource tags
arch:armhfimage:debian12-armhf-20260513-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem - submitted
30/10/2026, 11:15
Behavioral task
behavioral1
Sample
b3astmode.arm7.elf
Resource
debian12-armhf-20260513-en
9 signatures
150 seconds
General
- Target b3astmode.arm7.elf
- Size 45KB
- Sample261030-ncqa6sysdw
- SHA256 5659ce381264cd5a8dbacaa30f09466acc628aa45f51e6e24165f68a3e3dc162
- MD5 9db3a2fcd721de930c1973fedd5f3e26
- SHA1 9424f4d4c43ed5bd0df2add4070286df1b594df3
- SHA512 6957ab27eacbfef51f235d6be6f84eafc85748e59b40ca8d1118923515473e7817ac7e47d3e81b6a38e5353026d88c00b93e81b89ac5e5e0d216c998b0ea23b9
- SSDEEP 768:CxYMepiDVs7k6p/CS53LWIBv0CxNYl1J2KlU9q3UELpTYAcSBj80cGzlB7ll9ORC:CxLOMVsdN33LWq0CElC+9LeAtNJT7llH
- TLSH T17B230265D23A8EB1DA90053BE9181DDF50839775CC9F31B7002189B835FB78D6DEC9A2
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Extracted
Family
-
mirai
Botnet
-
UNST
C2
-
45.95.168.143
Signatures
- Mirai ARM payload 1 IoCs
resource yara_rule behavioral1/memory/807-1-0x00008000-0x00024d70-memory.dmp family_mirai_arm - Contacts a large (68016) 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.
- Modifies Watchdog functionality 1 TTPs 2 IoCs
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
description ioc Process File opened for modification /dev/watchdog b3astmode.arm7.elf File opened for modification /dev/misc/watchdog b3astmode.arm7.elf - Enumerates active TCP sockets 1 TTPs 1 IoCs
Gets active TCP sockets from /proc virtual filesystem.
description ioc Process File opened for reading /proc/net/tcp b3astmode.arm7.elf - Enumerates running processes
Discovers information about currently running processes on the system
- Reads system network configuration 1 TTPs 1 IoCs
Uses contents of /proc filesystem to enumerate network settings.
description ioc Process File opened for reading /proc/net/tcp b3astmode.arm7.elf -
description ioc Process File opened for reading /proc/259/fd b3astmode.arm7.elf File opened for reading /proc/665/fd b3astmode.arm7.elf File opened for reading /proc/622/exe b3astmode.arm7.elf File opened for reading /proc/669/exe b3astmode.arm7.elf File opened for reading /proc/804/exe b3astmode.arm7.elf File opened for reading /proc/642/fd b3astmode.arm7.elf File opened for reading /proc/317/fd b3astmode.arm7.elf File opened for reading /proc/337/fd b3astmode.arm7.elf File opened for reading /proc/353/fd b3astmode.arm7.elf File opened for reading /proc/371/fd b3astmode.arm7.elf File opened for reading /proc/768/fd b3astmode.arm7.elf File opened for reading /proc/665/exe b3astmode.arm7.elf File opened for reading /proc/730/exe b3astmode.arm7.elf File opened for reading /proc/780/exe b3astmode.arm7.elf File opened for reading /proc/218/fd b3astmode.arm7.elf File opened for reading /proc/333/fd b3astmode.arm7.elf File opened for reading /proc/830/fd b3astmode.arm7.elf File opened for reading /proc/642/exe b3astmode.arm7.elf File opened for reading /proc/802/exe b3astmode.arm7.elf File opened for reading /proc/838/exe b3astmode.arm7.elf File opened for reading /proc/641/exe b3astmode.arm7.elf File opened for reading /proc/822/exe b3astmode.arm7.elf File opened for reading /proc/836/exe b3astmode.arm7.elf File opened for reading /proc/192/fd b3astmode.arm7.elf File opened for reading /proc/315/fd b3astmode.arm7.elf File opened for reading /proc/738/fd b3astmode.arm7.elf File opened for reading /proc/822/fd b3astmode.arm7.elf File opened for reading /proc/827/fd b3astmode.arm7.elf File opened for reading /proc/316/fd b3astmode.arm7.elf File opened for reading /proc/342/fd b3astmode.arm7.elf File opened for reading /proc/359/fd b3astmode.arm7.elf File opened for reading /proc/622/fd b3astmode.arm7.elf File opened for reading /proc/641/fd b3astmode.arm7.elf File opened for reading /proc/669/fd b3astmode.arm7.elf File opened for reading /proc/730/fd b3astmode.arm7.elf File opened for reading /proc/787/fd b3astmode.arm7.elf File opened for reading /proc/self/exe b3astmode.arm7.elf File opened for reading /proc/1/fd b3astmode.arm7.elf