mirai | c9c219a8c84a6f4a4d2c6b2daab81dfec2d1de4dfe12649c25b3b2be73589f1e

Analysis

max time kernel
150s
max time network
155s
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
13-11-2024 23:47

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General

Target

botnet.mpsl.elf
Size

37KB
MD5

9f283a66e6aa73b192d236fb6c16cf51
SHA1

4079022688540bd661f8d3246be685cf8f652c3b
SHA256

c9c219a8c84a6f4a4d2c6b2daab81dfec2d1de4dfe12649c25b3b2be73589f1e
SHA512

fee1659c1bd5befdaeb3c34a241d6f1cdcfefeaee9f3e06d77fae24ebbb23f79cf2b9d9d6c9ced7b32c95058c5142498ad896bf75701e46207bad00de18ac157
SSDEEP

768:TghW5vB2zC1sX2v5WkybCQCBcqL4szKtRS6RaWbTJo+YEHhWMVK:Uo58CTvrsCGYKtRSGaWbloWHK

Score

10^/10

mirai mirai botnet defense_evasion discovery

Malware Config

Extracted

Family

mirai

Botnet

MIRAI

Signatures

Mirai
Mirai is a prevalent Linux malware infecting exposed network devices.
botnet mirai
Mirai family
mirai
Contacts a large (23197) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
File and Directory Permissions Modification 1 TTPs 2 IoCs
Adversaries may modify file or directory permissions to evade defenses.
defense_evasion

Linux and Mac File and Directory Permissions Modification
T1222.002

Processes:

shchmod

pid process

705 sh
717 chmod
Changes its process name 1 IoCs

Processes:

botnet.mpsl.elf

description ioc pid process

Changes the process name, possibly in an attempt to hide itself /bin/busybox 704 botnet.mpsl.elf

pid	process
705	sh
717	chmod

description	ioc	pid	process
Changes the process name, possibly in an attempt to hide itself	/bin/busybox	704	botnet.mpsl.elf

Reads runtime system information 3 IoCs

Reads data from /proc virtual filesystem.

discovery

Processes:

botnet.mpsl.elfmkdirmv

description	ioc	process
File opened for reading	/proc/self/exe	botnet.mpsl.elf
File opened for reading	/proc/filesystems	mkdir
File opened for reading	/proc/filesystems	mv

Writes file to tmp directory 1 IoCs
Malware often drops required files in the /tmp directory.

Processes:

sh

description ioc process

File opened for modification /tmp/bin/busybox sh

description	ioc	process
File opened for modification	/tmp/bin/busybox	sh

/tmp/botnet.mpsl.elf
/tmp/botnet.mpsl.elf
1⤵
- Changes its process name
- Reads runtime system information
PID:704
- /bin/sh
  sh -c "rm -rf bin/busybox && mkdir bin; >bin/busybox && mv /tmp/botnet.mpsl.elf bin/busybox; chmod 777 bin/busybox"
  2⤵
  - File and Directory Permissions Modification
  - Writes file to tmp directory
  PID:705
- - /bin/rm
    rm -rf bin/busybox
    3⤵
    PID:706
- - /bin/mkdir
    mkdir bin
    3⤵
    - Reads runtime system information
    PID:708
- - /bin/mv
    mv /tmp/botnet.mpsl.elf bin/busybox
    3⤵
    - Reads runtime system information
    PID:714
- - /bin/chmod
    chmod 777 bin/busybox
    3⤵
    - File and Directory Permissions Modification
    PID:717

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Linux and Mac File and Directory Permissions Modification

T1222.002

Credential Access

Discovery

Network Service Discovery

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/704-1-0x00400000-0x0045b0d8-memory.dmp

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