Malware Analysis Report

2024-11-13 18:33

Sample ID 231225-rw1sssbhe7
Target 25eb4023fba770092e7817c41ee2af7f
SHA256 bf25d7b400a7512ea948f5d98b39bf4729e3292f65dff05a289b779c25d23cea
Tags
strrat discovery
score
10/10

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
10/10

SHA256

bf25d7b400a7512ea948f5d98b39bf4729e3292f65dff05a289b779c25d23cea

Threat Level: Known bad

The file 25eb4023fba770092e7817c41ee2af7f was found to be: Known bad.

Malicious Activity Summary

strrat discovery

Strrat family

Modifies file permissions

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-25 14:33

Signatures

Strrat family

strrat

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-25 14:33

Reported

2023-12-28 15:26

Platform

win7-20231215-en

Max time kernel

150s

Max time network

154s

Command Line

java -jar C:\Users\Admin\AppData\Local\Temp\000122223.jar

Signatures

N/A

Processes

C:\Windows\system32\java.exe

java -jar C:\Users\Admin\AppData\Local\Temp\000122223.jar

Network

Country Destination Domain Proto
US 8.8.8.8:53 repo1.maven.org udp
US 8.8.8.8:53 github.com udp
US 199.232.192.209:443 repo1.maven.org tcp
US 199.232.192.209:443 repo1.maven.org tcp
US 199.232.192.209:443 repo1.maven.org tcp
DE 140.82.121.3:443 github.com tcp
DE 140.82.121.3:443 github.com tcp
DE 140.82.121.3:443 github.com tcp
DE 140.82.121.3:443 github.com tcp
US 8.8.8.8:53 repo1.maven.org udp
US 199.232.192.209:443 repo1.maven.org tcp
US 199.232.192.209:443 repo1.maven.org tcp
US 199.232.192.209:443 repo1.maven.org tcp
DE 140.82.121.3:443 github.com tcp
US 8.8.8.8:53 github.com udp
DE 140.82.121.3:443 github.com tcp
DE 140.82.121.3:443 github.com tcp
DE 140.82.121.3:443 github.com tcp
DE 140.82.121.3:443 github.com tcp
DE 140.82.121.3:443 github.com tcp
DE 140.82.121.3:443 github.com tcp
DE 140.82.121.3:443 github.com tcp

Files

memory/1728-9-0x00000000020D0000-0x00000000050D0000-memory.dmp

memory/1728-10-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-17-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-19-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-21-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-23-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-26-0x00000000020D0000-0x00000000050D0000-memory.dmp

memory/1728-30-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-33-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-35-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-38-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-39-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-44-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-45-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-49-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-50-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-51-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-52-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-62-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-63-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-64-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-66-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-71-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-72-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-74-0x0000000000420000-0x0000000000421000-memory.dmp

memory/1728-75-0x0000000000420000-0x0000000000421000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-25 14:33

Reported

2023-12-28 15:26

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

150s

Command Line

java -jar C:\Users\Admin\AppData\Local\Temp\000122223.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 3664 wrote to memory of 1972 N/A C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe C:\Windows\system32\icacls.exe
PID 3664 wrote to memory of 1972 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\000122223.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 8.8.8.8:53 148.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 190.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 repo1.maven.org udp
US 8.8.8.8:53 github.com udp
US 199.232.192.209:443 repo1.maven.org tcp
US 199.232.192.209:443 repo1.maven.org tcp
US 199.232.192.209:443 repo1.maven.org tcp
DE 140.82.121.3:443 github.com tcp
US 8.8.8.8:53 3.121.82.140.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 209.192.232.199.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 195.233.44.23.in-addr.arpa udp
US 8.8.8.8:53 189.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 210.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 repo1.maven.org udp
US 8.8.8.8:53 github.com udp
DE 140.82.121.3:443 github.com tcp
US 199.232.192.209:443 repo1.maven.org tcp
US 199.232.192.209:443 repo1.maven.org tcp
US 199.232.192.209:443 repo1.maven.org tcp
US 8.8.8.8:53 objects.githubusercontent.com udp
US 185.199.108.133:443 objects.githubusercontent.com tcp
US 8.8.8.8:53 224.162.46.104.in-addr.arpa udp

Files

memory/3664-2-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-11-0x000001920F980000-0x000001920F981000-memory.dmp

memory/3664-18-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-28-0x000001920F980000-0x000001920F981000-memory.dmp

memory/3664-29-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-42-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-48-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-51-0x000001920F980000-0x000001920F981000-memory.dmp

memory/3664-55-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-56-0x000001920F980000-0x000001920F981000-memory.dmp

memory/3664-78-0x000001920F980000-0x000001920F981000-memory.dmp

memory/3664-159-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-161-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-162-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-163-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-166-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-168-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-169-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-186-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-190-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-197-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-201-0x0000019211390000-0x0000019212390000-memory.dmp

memory/3664-219-0x0000019211390000-0x0000019212390000-memory.dmp