mirai | 871c0c69c5cdac7fe0739e51098f34246d0a03e86492ff7c42abd127fe33afc3

Analysis

max time kernel
27s
max time network
153s
platform
ubuntu-22.04_amd64
resource
ubuntu2204-amd64-20240611-en
resource tags

arch:amd64arch:i386image:ubuntu2204-amd64-20240611-enkernel:5.15.0-105-genericlocale:en-usos:ubuntu-22.04-amd64system
submitted
07/03/2025, 01:07

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General

Target

c39fb97d74db466bd305b8695d0b0cd0ebc7707462f479f04baeae904d3dc38e.elf
Size

38KB
MD5

2934298896dab8ecfc15035b5739d070
SHA1

ec02459edf218ff107425a240a52161270fa69a8
SHA256

c39fb97d74db466bd305b8695d0b0cd0ebc7707462f479f04baeae904d3dc38e
SHA512

690a20f0b35cd05e3de2e8a522fba912bdcd00a078aa0e6438480e85808106121be657c555fc380eeb8aa721b9d302f556c20d8184d7b19cc30b913f0b15c9ea
SSDEEP

768:A/HmOY4lDYuaLQjGW0JVxzdUBcBm/c+kotPkv5qyXmaOs/lRv9sPw1:2bYG0TkQxhU5ZlG5JXThFuw1

Score

10^/10

mirai mirai botnet defense_evasion discovery

Malware Config

Extracted

Family

mirai

Botnet

MIRAI

hjfdjkahfkejw.chickenkiller.com

Signatures

Mirai
Mirai is a prevalent Linux malware infecting exposed network devices.
botnet mirai
Mirai family
mirai
Contacts a large (193696) 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

pid	Process
1589	sh
1593	chmod

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	/bin/systemd	1588	c39fb97d74db466bd305b8695d0b0cd0ebc7707462f479f04baeae904d3dc38e.elf

Reads runtime system information 3 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/self/exe	c39fb97d74db466bd305b8695d0b0cd0ebc7707462f479f04baeae904d3dc38e.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.

description	ioc	Process
File opened for modification	/tmp/bin/systemd	sh

/tmp/c39fb97d74db466bd305b8695d0b0cd0ebc7707462f479f04baeae904d3dc38e.elf
/tmp/c39fb97d74db466bd305b8695d0b0cd0ebc7707462f479f04baeae904d3dc38e.elf
1⤵
- Changes its process name
- Reads runtime system information
PID:1588
- /bin/sh
  sh -c "rm -rf bin/systemd && mkdir bin; >bin/systemd && mv /tmp/c39fb97d74db466bd305b8695d0b0cd0ebc7707462f479f04baeae904d3dc38e.elf bin/systemd; chmod 777 bin/systemd"
  2⤵
  - File and Directory Permissions Modification
  - Writes file to tmp directory
  PID:1589
- - /usr/bin/rm
    rm -rf bin/systemd
    3⤵
    PID:1590
- - /usr/bin/mkdir
    mkdir bin
    3⤵
    - Reads runtime system information
    PID:1591
- - /usr/bin/mv
    mv /tmp/c39fb97d74db466bd305b8695d0b0cd0ebc7707462f479f04baeae904d3dc38e.elf bin/systemd
    3⤵
    - Reads runtime system information
    PID:1592
- - /usr/bin/chmod
    chmod 777 bin/systemd
    3⤵
    - File and Directory Permissions Modification
    PID:1593

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

Windows 7 deprecation

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