mirai | 40c6320fe73c1f3ade0fff59bd3d5956325cec709675f5b122da499d55612e85

Analysis

max time kernel
46s
max time network
154s
platform
debian-9_armhf
resource
debian9-armhf-20240611-en
resource tags

arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
07/03/2025, 01:07

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General

Target

d641aff3b80837fdf9e15510241e3baec65ea2f8d544143ac8c73dd96b007fa2.elf
Size

37KB
MD5

22a52ad7ce8f1cfbf7a832dc9970efe4
SHA1

70377ad7d5cf4ebbf6f8f4b0bde269e062290bef
SHA256

d641aff3b80837fdf9e15510241e3baec65ea2f8d544143ac8c73dd96b007fa2
SHA512

d63c30a68e49f9687ddd6713a758cfdc72588fce3507345f00bb91f019e67b26f1039fb55ea502044207edcf9a92229a9af514acde31857682390a65d1aa8e6a
SSDEEP

768:H+3txiLhPVopS/R0I8p+NSJMXuESWi4kerWKCzOqWVX1oR5Y3Up:H+3riP2SyIfNUxES9eBkOxoR5L

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 (175974) 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
674	chmod
663	sh

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	/bin/systemd	662	d641aff3b80837fdf9e15510241e3baec65ea2f8d544143ac8c73dd96b007fa2.elf

Reads runtime system information 3 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/filesystems	mv
File opened for reading	/proc/self/exe	d641aff3b80837fdf9e15510241e3baec65ea2f8d544143ac8c73dd96b007fa2.elf
File opened for reading	/proc/filesystems	mkdir

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/d641aff3b80837fdf9e15510241e3baec65ea2f8d544143ac8c73dd96b007fa2.elf
/tmp/d641aff3b80837fdf9e15510241e3baec65ea2f8d544143ac8c73dd96b007fa2.elf
1⤵
- Changes its process name
- Reads runtime system information
PID:662
- /bin/sh
  sh -c "rm -rf bin/systemd && mkdir bin; >bin/systemd && mv /tmp/d641aff3b80837fdf9e15510241e3baec65ea2f8d544143ac8c73dd96b007fa2.elf bin/systemd; chmod 777 bin/systemd"
  2⤵
  - File and Directory Permissions Modification
  - Writes file to tmp directory
  PID:663
- - /bin/rm
    rm -rf bin/systemd
    3⤵
    PID:665
- - /bin/mkdir
    mkdir bin
    3⤵
    - Reads runtime system information
    PID:667
- - /bin/mv
    mv /tmp/d641aff3b80837fdf9e15510241e3baec65ea2f8d544143ac8c73dd96b007fa2.elf bin/systemd
    3⤵
    - Reads runtime system information
    PID:669
- - /bin/chmod
    chmod 777 bin/systemd
    3⤵
    - File and Directory Permissions Modification
    PID:674

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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