mirai | a6c1a94828b01c0aacd96159919d36031dc10713a00da54945dca3676f1036be

Analysis

max time kernel
149s
max time network
147s
platform
debian-9_mipsel
resource
debian9-mipsel-20240226-en
resource tags

arch:mipselimage:debian9-mipsel-20240226-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
submitted
01-04-2024 21:48

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General

Target

mpsl
Size

35KB
MD5

4808a808fec25b07e9e28b0238e0ba4a
SHA1

d3c97161ae9ed8f0d926439a3ae42d48f962d726
SHA256

a6c1a94828b01c0aacd96159919d36031dc10713a00da54945dca3676f1036be
SHA512

61e9613881baa8667f0c7ea7858944b629af24c021ba9b15a22a1b1290cb57b71d59ee4aa14bfea1263989e57f8d4668cfad368350c686b4d1783c973c33eab6
SSDEEP

768:PailI++SHdh9D+NWkWej0/RJkCWk9uqmVwv5sfDWy:Jl+SH9D+NW3e0wk9uqmVwhsX

Score

10^/10

mirai mirai botnet evasion

Malware Config

Extracted

Family

mirai

Botnet

MIRAI

Signatures

Mirai
Mirai is a prevalent Linux malware infecting exposed network devices.
botnet mirai
Changes its process name 1 IoCs

Processes:

mpsl

description ioc pid process

Changes the process name, possibly in an attempt to hide itself b1gr2sfr82i723vj 704 mpsl
Deletes Audit logs 1 TTPs 1 IoCs
Deletes logs related to the Linux Audit framework.
evasion

Indicator Removal
T1070

Processes:

description ioc

File deleted /var/log/audit/audit.log
Deletes itself 1 IoCs

Processes:

mpsl

pid process

704 mpsl
Deletes system logs 1 TTPs 1 IoCs
Deletes log file which contains global system messages. Adversaries may delete system logs to minimize their footprint.
evasion

Indicator Removal
T1070

Processes:

description ioc

File deleted /var/log/syslog
Modifies Watchdog functionality 1 TTPs 2 IoCs
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

Impair Defenses
T1562

Processes:

mpsl

description ioc process

File opened for modification /dev/watchdog mpsl
File opened for modification /dev/misc/watchdog mpsl
Deletes log files 1 TTPs 1 IoCs
Deletes log files on the system.

Indicator Removal
T1070

Processes:

description ioc

File deleted /var/log/daemon.log
Enumerates running processes
Discovers information about currently running processes on the system

description	ioc	pid	process
Changes the process name, possibly in an attempt to hide itself	b1gr2sfr82i723vj	704	mpsl

description	ioc
File deleted	/var/log/audit/audit.log

pid	process
704	mpsl

description	ioc
File deleted	/var/log/syslog

description	ioc	process
File opened for modification	/dev/watchdog	mpsl
File opened for modification	/dev/misc/watchdog	mpsl

description	ioc
File deleted	/var/log/daemon.log

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

Processes:

description	ioc
File opened for reading	/proc/72/cmdline
File opened for reading	/proc/805/cmdline
File opened for reading	/proc/842/cmdline
File opened for reading	/proc/673/cmdline
File opened for reading	/proc/717/cmdline
File opened for reading	/proc/761/cmdline
File opened for reading	/proc/732/cmdline
File opened for reading	/proc/745/cmdline
File opened for reading	/proc/80/cmdline
File opened for reading	/proc/373/cmdline
File opened for reading	/proc/697/cmdline
File opened for reading	/proc/15/cmdline
File opened for reading	/proc/146/cmdline
File opened for reading	/proc/372/cmdline
File opened for reading	/proc/789/cmdline
File opened for reading	/proc/801/cmdline
File opened for reading	/proc/105/cmdline
File opened for reading	/proc/777/cmdline
File opened for reading	/proc/783/cmdline
File opened for reading	/proc/811/cmdline
File opened for reading	/proc/351/cmdline
File opened for reading	/proc/722/cmdline
File opened for reading	/proc/794/cmdline
File opened for reading	/proc/826/cmdline
File opened for reading	/proc/76/cmdline
File opened for reading	/proc/116/cmdline
File opened for reading	/proc/778/cmdline
File opened for reading	/proc/736/cmdline
File opened for reading	/proc/802/cmdline
File opened for reading	/proc/70/cmdline
File opened for reading	/proc/718/cmdline
File opened for reading	/proc/721/cmdline
File opened for reading	/proc/352/cmdline
File opened for reading	/proc/433/cmdline
File opened for reading	/proc/751/cmdline
File opened for reading	/proc/804/cmdline
File opened for reading	/proc/4/cmdline
File opened for reading	/proc/10/cmdline
File opened for reading	/proc/12/cmdline
File opened for reading	/proc/752/cmdline
File opened for reading	/proc/810/cmdline
File opened for reading	/proc/843/cmdline
File opened for reading	/proc/7/cmdline
File opened for reading	/proc/730/cmdline
File opened for reading	/proc/743/cmdline
File opened for reading	/proc/702/cmdline
File opened for reading	/proc/735/cmdline
File opened for reading	/proc/749/cmdline
File opened for reading	/proc/824/cmdline
File opened for reading	/proc/2/cmdline
File opened for reading	/proc/17/cmdline
File opened for reading	/proc/376/cmdline
File opened for reading	/proc/760/cmdline
File opened for reading	/proc/771/cmdline
File opened for reading	/proc/781/cmdline
File opened for reading	/proc/799/cmdline
File opened for reading	/proc/818/cmdline
File opened for reading	/proc/75/cmdline
File opened for reading	/proc/727/cmdline
File opened for reading	/proc/747/cmdline
File opened for reading	/proc/827/cmdline
File opened for reading	/proc/853/cmdline
File opened for reading	/proc/115/cmdline
File opened for reading	/proc/756/cmdline

/tmp/mpsl
/tmp/mpsl
1⤵
- Changes its process name
- Deletes itself
- Modifies Watchdog functionality
PID:704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Impair Defenses

T1562

Indicator Removal

T1070

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/704-1-0x00400000-0x004669b0-memory.dmp

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