mirai | ed8c5c550a72e23c13be1545b9f4e202c39ea7a98429985dd41836ae9b97577f

Analysis

max time kernel
143s
max time network
147s
platform
ubuntu-22.04_amd64
resource
ubuntu2204-amd64-20240522.1-en
resource tags

arch:amd64arch:i386image:ubuntu2204-amd64-20240522.1-enkernel:5.15.0-105-genericlocale:en-usos:ubuntu-22.04-amd64system
submitted
29/08/2024, 11:27

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General

Target

c8bb13dd7e7bf424536d8f9cd6e70d39_JaffaCakes118
Size

24KB
MD5

c8bb13dd7e7bf424536d8f9cd6e70d39
SHA1

f88c612af9e86df9166948692a071e27d55d61a3
SHA256

ed8c5c550a72e23c13be1545b9f4e202c39ea7a98429985dd41836ae9b97577f
SHA512

a222689df42564c57c3a7ea5489aa8462afe4f2b4f5223b23c1183cae63e2ba6cb43aba8c8d3951242f31b96ffa1d0a0e8907c1451759fe1fa14db3dc0fe5e17
SSDEEP

768:CkEzDPCjzuV0GjZlujt2gNWDHLSEZQS/k+M:CrDPC3uV9qjjsLdk+M

Score

10^/10

mirai botnet discovery

Malware Config

Extracted

Family

mirai

network.bigbotpein.com

krebs.bigbotpein.com

Signatures

Mirai
Mirai is a prevalent Linux malware infecting exposed network devices.
botnet mirai
Contacts a large (14713) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Deletes itself 1 IoCs

pid	Process
1558	c8bb13dd7e7bf424536d8f9cd6e70d39_JaffaCakes118

Modifies Watchdog functionality 1 TTPs 2 IoCs

Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

Impair Defenses

T1562

description	ioc	Process
File opened for modification	/dev/misc/watchdog	c8bb13dd7e7bf424536d8f9cd6e70d39_JaffaCakes118
File opened for modification	/dev/watchdog	c8bb13dd7e7bf424536d8f9cd6e70d39_JaffaCakes118

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

Enumerates active TCP sockets 1 TTPs 1 IoCs

Gets active TCP sockets from /proc virtual filesystem.

System Network Connections Discovery

T1049

description	ioc	Process
File opened for reading	/proc/net/tcp	c8bb13dd7e7bf424536d8f9cd6e70d39_JaffaCakes118

Changes its process name 1 IoCs

description	pid	Process
Changes the process name, possibly in an attempt to hide itself	1558	c8bb13dd7e7bf424536d8f9cd6e70d39_JaffaCakes118

Reads system network configuration 1 TTPs 1 IoCs

Uses contents of /proc filesystem to enumerate network settings.

System Network Configuration Discovery

T1016

description	ioc	Process
File opened for reading	/proc/net/tcp	c8bb13dd7e7bf424536d8f9cd6e70d39_JaffaCakes118

/tmp/c8bb13dd7e7bf424536d8f9cd6e70d39_JaffaCakes118
/tmp/c8bb13dd7e7bf424536d8f9cd6e70d39_JaffaCakes118
1⤵
- Deletes itself
- Modifies Watchdog functionality
- Enumerates active TCP sockets
- Changes its process name
- Reads system network configuration
PID:1558

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Impair Defenses

T1562

Credential Access

Discovery

Network Service Discovery

T1046

System Network Configuration Discovery

T1016

System Network Connections Discovery

T1049

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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