Malware Analysis Report

2024-10-16 05:59

Sample ID 240715-l3ax3atdnc
Target file01.js
SHA256 a25a98626d79b23cf108c546cf3329f37116332513f26590f670184ec8273880
Tags
antivm
score
4/10

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: 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: behavioral8

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral7

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
4/10

SHA256

a25a98626d79b23cf108c546cf3329f37116332513f26590f670184ec8273880

Threat Level: Likely benign

The file file01.js was found to be: Likely benign.

Malicious Activity Summary

antivm

Changes its process name

Checks CPU configuration

Reads CPU attributes

Reads runtime system information

Enumerates kernel/hardware configuration

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-15 10:02

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-15 10:02

Reported

2024-07-15 10:10

Platform

debian9-armhf-20240611-en

Max time kernel

7s

Command Line

[node /tmp/file01.js]

Signatures

Checks CPU configuration

antivm
Description Indicator Process Target
File opened for reading /proc/cpuinfo /usr/bin/node N/A

Reads CPU attributes

Description Indicator Process Target
File opened for reading /sys/devices/system/cpu/online /usr/bin/node N/A

Enumerates kernel/hardware configuration

Description Indicator Process Target
File opened for reading /sys/fs/cgroup/memory/memory.limit_in_bytes /usr/bin/node N/A

Reads runtime system information

Description Indicator Process Target
File opened for reading /proc/meminfo /usr/bin/node N/A

Processes

/usr/bin/node

[node /tmp/file01.js]

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-07-15 10:02

Reported

2024-07-15 10:14

Platform

debian9-mipsel-20240226-en

Max time kernel

32s

Command Line

[nodejs /tmp/file01.js]

Signatures

Changes its process name

Description Indicator Process Target
Changes the process name, possibly in an attempt to hide itself V8 WorkerThread N/A N/A
Changes the process name, possibly in an attempt to hide itself V8 WorkerThread N/A N/A
Changes the process name, possibly in an attempt to hide itself V8 WorkerThread N/A N/A
Changes the process name, possibly in an attempt to hide itself V8 WorkerThread N/A N/A

Checks CPU configuration

antivm
Description Indicator Process Target
File opened for reading /proc/cpuinfo /usr/bin/nodejs N/A

Processes

/usr/bin/nodejs

[nodejs /tmp/file01.js]

Network

N/A

Files

N/A

Analysis: behavioral5

Detonation Overview

Submitted

2024-07-15 10:02

Reported

2024-07-15 10:05

Platform

ubuntu1804-amd64-20240611-en

Max time kernel

0s

Max time network

129s

Command Line

[node /tmp/file01.js]

Signatures

Enumerates kernel/hardware configuration

Description Indicator Process Target
File opened for reading /sys/fs/cgroup/memory/memory.limit_in_bytes /usr/bin/node N/A

Reads runtime system information

Description Indicator Process Target
File opened for reading /proc/meminfo /usr/bin/node N/A

Processes

/usr/bin/node

[node /tmp/file01.js]

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 185.125.188.61:443 tcp
GB 185.125.188.61:443 tcp
US 151.101.1.91:443 tcp
US 151.101.1.91:443 tcp
GB 89.187.167.5:443 tcp

Files

N/A

Analysis: behavioral6

Detonation Overview

Submitted

2024-07-15 10:02

Reported

2024-07-15 10:04

Platform

ubuntu2004-amd64-20240611-en

Max time kernel

0s

Max time network

4s

Command Line

[node /tmp/file01.js]

Signatures

Enumerates kernel/hardware configuration

Description Indicator Process Target
File opened for reading /sys/fs/cgroup/memory/system.slice/agent.service/memory.soft_limit_in_bytes /usr/bin/node N/A
File opened for reading /sys/fs/cgroup/memory/system.slice/agent.service/memory.limit_in_bytes /usr/bin/node N/A

Reads runtime system information

Description Indicator Process Target
File opened for reading /proc/self/cgroup /usr/bin/node N/A
File opened for reading /proc/meminfo /usr/bin/node N/A
File opened for reading /proc/self/maps /usr/bin/node N/A

Processes

/usr/bin/node

[node /tmp/file01.js]

Network

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

Files

N/A

Analysis: behavioral8

Detonation Overview

Submitted

2024-07-15 10:02

Reported

2024-07-15 10:03

Platform

ubuntu2404-amd64-20240523-en

Max time kernel

0s

Max time network

1s

Command Line

[node /tmp/file01.js]

Signatures

Enumerates kernel/hardware configuration

Description Indicator Process Target
File opened for reading /sys/fs/cgroup/system.slice/agent.service/memory.max /usr/bin/node N/A
File opened for reading /sys/fs/cgroup/system.slice/agent.service/memory.high /usr/bin/node N/A

Reads runtime system information

Description Indicator Process Target
File opened for reading /proc/self/cgroup /usr/bin/node N/A
File opened for reading /proc/meminfo /usr/bin/node N/A
File opened for reading /proc/self/maps /usr/bin/node N/A

Processes

/usr/bin/node

[node /tmp/file01.js]

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-15 10:02

Reported

2024-07-15 10:07

Platform

debian12-mipsel-20240418-en

Max time kernel

22s

Max time network

28s

Command Line

[node /tmp/file01.js]

Signatures

Checks CPU configuration

antivm
Description Indicator Process Target
File opened for reading /proc/cpuinfo /usr/bin/node N/A

Enumerates kernel/hardware configuration

Description Indicator Process Target
File opened for reading /sys/fs/cgroup/memory/memory.limit_in_bytes /usr/bin/node N/A

Reads runtime system information

Description Indicator Process Target
File opened for reading /proc/meminfo /usr/bin/node N/A

Processes

/usr/bin/node

[node /tmp/file01.js]

Network

Country Destination Domain Proto
US 1.1.1.1:53 debian12-mipsel-20240418-en-1 udp
US 1.1.1.1:53 debian12-mipsel-20240418-en-1 udp
US 1.1.1.1:53 debian12-mipsel-20240418-en-1 udp
US 1.1.1.1:53 debian12-mipsel-20240418-en-1 udp

Files

N/A

Analysis: behavioral3

Detonation Overview

Submitted

2024-07-15 10:02

Reported

2024-07-15 10:06

Platform

debian9-mipsbe-20240611-en

Max time kernel

22s

Command Line

[nodejs /tmp/file01.js]

Signatures

Changes its process name

Description Indicator Process Target
Changes the process name, possibly in an attempt to hide itself V8 WorkerThread N/A N/A
Changes the process name, possibly in an attempt to hide itself V8 WorkerThread N/A N/A
Changes the process name, possibly in an attempt to hide itself V8 WorkerThread N/A N/A
Changes the process name, possibly in an attempt to hide itself V8 WorkerThread N/A N/A

Checks CPU configuration

antivm
Description Indicator Process Target
File opened for reading /proc/cpuinfo /usr/bin/nodejs N/A

Processes

/usr/bin/nodejs

[nodejs /tmp/file01.js]

Network

N/A

Files

N/A

Analysis: behavioral7

Detonation Overview

Submitted

2024-07-15 10:02

Reported

2024-07-15 10:03

Platform

ubuntu2204-amd64-20240522.1-en

Max time kernel

0s

Max time network

0s

Command Line

[node /tmp/file01.js]

Signatures

Enumerates kernel/hardware configuration

Description Indicator Process Target
File opened for reading /sys/fs/cgroup/system.slice/agent.service/memory.high /usr/bin/node N/A
File opened for reading /sys/fs/cgroup/system.slice/agent.service/memory.max /usr/bin/node N/A

Reads runtime system information

Description Indicator Process Target
File opened for reading /proc/self/cgroup /usr/bin/node N/A
File opened for reading /proc/meminfo /usr/bin/node N/A
File opened for reading /proc/self/maps /usr/bin/node N/A

Processes

/usr/bin/node

[node /tmp/file01.js]

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp

Files

N/A