mirai | ef6879e75ae0fa91215a456ab9411576fb46d9e701c81c3dd03ae530b63d089f

Analysis

max time kernel
150s
max time network
147s
platform
debian-12_armhf
resource
debian12-armhf-20240221-en
resource tags

arch:armhfimage:debian12-armhf-20240221-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
submitted
19/01/2025, 18:02

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General

Target

boatnet.arm7.elf
Size

52KB
MD5

b2c5f835d54c4829e8f062e3e0f4f8a6
SHA1

e3b0b074c60927ddee00eef66939dd93540bc158
SHA256

ef6879e75ae0fa91215a456ab9411576fb46d9e701c81c3dd03ae530b63d089f
SHA512

ec27677784dd7ce10ba8efed5b3d1e2dbb795bb6c037e10d5273b42fc1a5432055e7f78f97570359de3733c7b091fee7cfe6a542f46b046bb68f7578e1aa494b
SSDEEP

1536:qjzYAnr5oMZomQkE3dGQ+LLmyBGkKRKoMYj:d0VZHE3dGQ+L6dlMYj

Score

10^/10

mirai lzrd botnet defense_evasion discovery

Malware Config

Extracted

Family

mirai

Botnet

LZRD

Signatures

Mirai
Mirai is a prevalent Linux malware infecting exposed network devices.
botnet mirai
Mirai family
mirai

Modifies Watchdog functionality 1 TTPs 2 IoCs

Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

defense_evasion

Impair Defenses

T1562

description	ioc	Process
File opened for modification	/dev/watchdog	boatnet.arm7.elf
File opened for modification	/dev/misc/watchdog	boatnet.arm7.elf

Writes file to system bin folder 2 IoCs

description	ioc	Process
File opened for modification	/sbin/watchdog	boatnet.arm7.elf
File opened for modification	/bin/watchdog	boatnet.arm7.elf

Reads runtime system information 12 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/639/cmdline	boatnet.arm7.elf
File opened for reading	/proc/680/cmdline	boatnet.arm7.elf
File opened for reading	/proc/700/cmdline	boatnet.arm7.elf
File opened for reading	/proc/705/cmdline	boatnet.arm7.elf
File opened for reading	/proc/718/cmdline	boatnet.arm7.elf
File opened for reading	/proc/638/cmdline	boatnet.arm7.elf
File opened for reading	/proc/654/cmdline	boatnet.arm7.elf
File opened for reading	/proc/655/cmdline	boatnet.arm7.elf
File opened for reading	/proc/665/cmdline	boatnet.arm7.elf
File opened for reading	/proc/706/cmdline	boatnet.arm7.elf
File opened for reading	/proc/714/cmdline	boatnet.arm7.elf
File opened for reading	/proc/self/exe	boatnet.arm7.elf

/tmp/boatnet.arm7.elf
/tmp/boatnet.arm7.elf
1⤵
- Modifies Watchdog functionality
- Writes file to system bin folder
- Reads runtime system information
PID:708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Impair Defenses

T1562

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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