Malware Analysis Report

2024-10-24 21:46

Sample ID 240518-cynhxsgb3t
Target 52a7a58ecb963aa34792eeaa16c91a1a_JaffaCakes118
SHA256 7f954e17f1f1e3c3def4cbd85acf8b77b0f1911a9b8ced2eb21b7ec6b0ca1826
Tags
xmrig antivm miner upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral5

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral6

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral7

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

7f954e17f1f1e3c3def4cbd85acf8b77b0f1911a9b8ced2eb21b7ec6b0ca1826

Threat Level: Known bad

The file 52a7a58ecb963aa34792eeaa16c91a1a_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

xmrig antivm miner upx

xmrig

XMRig Miner payload

UPX packed file

Checks CPU configuration

Reads CPU attributes

Writes file to tmp directory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-18 02:29

Signatures

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-18 02:29

Reported

2024-05-18 02:31

Platform

ubuntu2004-amd64-20240508-en

Max time kernel

0s

Max time network

134s

Command Line

[/tmp/.xxz/h64]

Signatures

N/A

Processes

/tmp/.xxz/h64

[/tmp/.xxz/h64]

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 connectivity-check.ubuntu.com udp
US 1.1.1.1:53 connectivity-check.ubuntu.com udp

Files

N/A

Analysis: behavioral3

Detonation Overview

Submitted

2024-05-18 02:29

Reported

2024-05-18 02:31

Platform

ubuntu2004-amd64-20240508-en

Max time kernel

0s

Max time network

132s

Command Line

[/tmp/.xxz/md]

Signatures

xmrig

miner xmrig

XMRig Miner payload

miner
Description Indicator Process Target
N/A N/A N/A N/A

Checks CPU configuration

antivm
Description Indicator Process Target
File opened for reading /proc/cpuinfo /tmp/.xxz/md N/A

Reads CPU attributes

Description Indicator Process Target
File opened for reading /sys/devices/system/cpu/online /tmp/.xxz/md N/A

Processes

/tmp/.xxz/md

[/tmp/.xxz/md]

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 connectivity-check.ubuntu.com udp
US 1.1.1.1:53 connectivity-check.ubuntu.com udp

Files

memory/1432-1-0x0000000008048000-0x0000000008299024-memory.dmp

Analysis: behavioral4

Detonation Overview

Submitted

2024-05-18 02:29

Reported

2024-05-18 02:31

Platform

ubuntu1804-amd64-20240508-en

Max time kernel

0s

Max time network

128s

Command Line

[/tmp/.xxz/run]

Signatures

Writes file to tmp directory

Description Indicator Process Target
File opened for modification /tmp/.xxz/bash.pid /tmp/.xxz/run N/A

Processes

/tmp/.xxz/run

[/tmp/.xxz/run]

/usr/bin/nproc

[nproc]

/bin/uname

[uname -m]

/tmp/.xxz/h64

[./h64 -s xxxdz ./md -o 107.191.99.95:3333 -u 46E9UkTFqALXNh2mSbA7WGDoa2i6h4WVgUgPVdT9ZdtweLRvAhWmbvuY1dhEmfjHbsavKXo3eGf5ZRb4qJzFXLVHGYH4moQ -p x -B]

Network

Country Destination Domain Proto
GB 185.125.188.61:443 tcp
GB 185.125.188.61:443 tcp
US 151.101.129.91:443 tcp
US 151.101.129.91:443 tcp
N/A 224.0.0.251:5353 udp
GB 89.187.167.4:443 tcp

Files

N/A

Analysis: behavioral5

Detonation Overview

Submitted

2024-05-18 02:29

Reported

2024-05-18 02:31

Platform

debian9-armhf-20240226-en

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

N/A

Files

N/A

Analysis: behavioral6

Detonation Overview

Submitted

2024-05-18 02:29

Reported

2024-05-18 02:29

Platform

debian9-mipsbe-20240418-en

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

N/A

Files

N/A

Analysis: behavioral7

Detonation Overview

Submitted

2024-05-18 02:29

Reported

2024-05-18 02:29

Platform

debian9-mipsel-20240226-en

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

N/A

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-18 02:29

Reported

2024-05-18 02:29

Platform

ubuntu2004-amd64-20240508-en

Max time kernel

0s

Max time network

1s

Command Line

[/tmp/.xxz/h32]

Signatures

N/A

Processes

/tmp/.xxz/h32

[/tmp/.xxz/h32]

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp

Files

N/A