mirai | ef148b27c6b7d2ccca17b547a8cc2c5c679d4071c81bb30f3d406c241d5ced8a

Analysis

max time kernel
141s
max time network
155s
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
16/03/2025, 10:57

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General

Target

EdiAf.arm7.elf
Size

57KB
MD5

275ce7ffce592c304406f670c42794ff
SHA1

ea1df704706fe0e6675c4941cfb9951db1a70ee7
SHA256

ef148b27c6b7d2ccca17b547a8cc2c5c679d4071c81bb30f3d406c241d5ced8a
SHA512

a2880a4225e305d52b1558825f4cc0113a18fdfe9cf013a057ef4ffdfa90ea1a7bce6811b89e39f2e9eb84f2d0f7fe8a4e696d32c928cf1217566753bf75bd79
SSDEEP

1536:+CmkRfpmgAF2RLoSpnlPWvIgt13/PQotkq94b3JEra:+pOmgAFIll0BTQot9sv

Score

10^/10

mirai unstable botnet defense_evasion discovery

Malware Config

Extracted

Family

mirai

Botnet

UNSTABLE

Signatures

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

Deletes itself 1 IoCs

pid	Process
711	EdiAf.arm7.elf

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

Writes file to system bin folder 2 IoCs

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

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	pgkvtvqlwgq8kfue	711	EdiAf.arm7.elf

Reads runtime system information 2 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/self/exe	EdiAf.arm7.elf
File opened for reading	/proc/self/maps	EdiAf.arm7.elf

/tmp/EdiAf.arm7.elf
/tmp/EdiAf.arm7.elf
1⤵
- Deletes itself
- Modifies Watchdog functionality
- Writes file to system bin folder
- Changes its process name
- Reads runtime system information
PID:711

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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