mirai | 49e20218f66fdfe8386ae94486af7e5a3d053c01fc7a242ad018d987a67df02a

Analysis

max time kernel
149s
max time network
143s
platform
debian-12_armhf
resource
debian12-armhf-20240418-en
resource tags

arch:armhfimage:debian12-armhf-20240418-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
submitted
24/01/2025, 22:02

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General

Target

night.arm7.elf
Size

53KB
MD5

68d3e9ef58cfb1d7e689bdce49e31953
SHA1

84d91ca02345fa83c8e824dfd40ccaaf83bfe684
SHA256

49e20218f66fdfe8386ae94486af7e5a3d053c01fc7a242ad018d987a67df02a
SHA512

ba9d1853255b9261c9e5d76abb8fa0eee30dcd4b0adf8a189af6872711911ac3330ca0e0494586acd7205294986a90c5650a659cd6c337d100eba7b0a255acbf
SSDEEP

768:SJRWBUhe0InSZiJCdfPGGOaVk/+wWpBeFPXDCAyeo0m9q3UELDLaMcOSmI3aar:S3WTvSpfZg+wWatzJye3LLRSmI3aar

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	night.arm7.elf
File opened for modification	/dev/misc/watchdog	night.arm7.elf

Writes file to system bin folder 2 IoCs

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

Reads runtime system information 20 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/630/cmdline	night.arm7.elf
File opened for reading	/proc/778/cmdline	night.arm7.elf
File opened for reading	/proc/629/cmdline	night.arm7.elf
File opened for reading	/proc/705/cmdline	night.arm7.elf
File opened for reading	/proc/646/cmdline	night.arm7.elf
File opened for reading	/proc/665/cmdline	night.arm7.elf
File opened for reading	/proc/677/cmdline	night.arm7.elf
File opened for reading	/proc/694/cmdline	night.arm7.elf
File opened for reading	/proc/702/cmdline	night.arm7.elf
File opened for reading	/proc/712/cmdline	night.arm7.elf
File opened for reading	/proc/777/cmdline	night.arm7.elf
File opened for reading	/proc/795/cmdline	night.arm7.elf
File opened for reading	/proc/647/cmdline	night.arm7.elf
File opened for reading	/proc/662/cmdline	night.arm7.elf
File opened for reading	/proc/683/cmdline	night.arm7.elf
File opened for reading	/proc/703/cmdline	night.arm7.elf
File opened for reading	/proc/713/cmdline	night.arm7.elf
File opened for reading	/proc/728/cmdline	night.arm7.elf
File opened for reading	/proc/779/cmdline	night.arm7.elf
File opened for reading	/proc/self/exe	night.arm7.elf

/tmp/night.arm7.elf
/tmp/night.arm7.elf
1⤵
- Modifies Watchdog functionality
- Writes file to system bin folder
- Reads runtime system information
PID:704

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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