Malware Analysis Report

2024-11-15 05:36

Sample ID 240603-mat1xacc59
Target ac88fa987a241fc845228cb8940c82a5.jar
SHA256 ec691f2cd0b0281c2ae82d8a8dc32e3704d01da682b950c481da554c835342f3
Tags
discovery
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

ec691f2cd0b0281c2ae82d8a8dc32e3704d01da682b950c481da554c835342f3

Threat Level: Shows suspicious behavior

The file ac88fa987a241fc845228cb8940c82a5.jar was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery

Modifies file permissions

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-03 10:16

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-03 10:16

Reported

2024-06-03 10:18

Platform

win7-20240508-en

Max time kernel

121s

Max time network

121s

Command Line

java -jar C:\Users\Admin\AppData\Local\Temp\ac88fa987a241fc845228cb8940c82a5.jar

Signatures

N/A

Processes

C:\Windows\system32\java.exe

java -jar C:\Users\Admin\AppData\Local\Temp\ac88fa987a241fc845228cb8940c82a5.jar

Network

N/A

Files

memory/2428-2-0x0000000002500000-0x0000000002770000-memory.dmp

memory/2428-11-0x0000000001C70000-0x0000000001C71000-memory.dmp

memory/2428-12-0x0000000002500000-0x0000000002770000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-03 10:16

Reported

2024-06-03 10:18

Platform

win10v2004-20240426-en

Max time kernel

92s

Max time network

93s

Command Line

java -jar C:\Users\Admin\AppData\Local\Temp\ac88fa987a241fc845228cb8940c82a5.jar

Signatures

Modifies file permissions

discovery
Description Indicator Process Target
N/A N/A C:\Windows\system32\icacls.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1496 wrote to memory of 3068 N/A C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe C:\Windows\system32\icacls.exe
PID 1496 wrote to memory of 3068 N/A C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe C:\Windows\system32\icacls.exe

Processes

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe

java -jar C:\Users\Admin\AppData\Local\Temp\ac88fa987a241fc845228cb8940c82a5.jar

C:\Windows\system32\icacls.exe

C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 148.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/1496-2-0x0000024502F90000-0x0000024503200000-memory.dmp

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

MD5 97370ab022523837cbadb5cbe0bcb4de
SHA1 9bf4876b324602180fd6d0481dbbf7bcd4e575b0
SHA256 61159afa3f66e62a722e247de36fefa002cddb1fbf79ef45e778aded81152c2c
SHA512 dcd59eb65522ad443d32103d2e3fd3e5b79a9be87822d45f9626a8b9c9bd6a3f3217660c5341f0e100479b8a19ef3d5475069f6a91b63aafb4e24aec4854b971

memory/1496-13-0x00000245016F0000-0x00000245016F1000-memory.dmp

memory/1496-14-0x0000024502F90000-0x0000024503200000-memory.dmp