Malware Analysis Report

2024-11-13 18:33

Sample ID 231019-s2az1agg81
Target 19102023_2336_18102023_Delivery information GCBAC71854.jar
SHA256 20f218010b4a83ad4af68bfe387b4275a86eef84354e279bde5b11c07b7433a7
Tags
strrat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

20f218010b4a83ad4af68bfe387b4275a86eef84354e279bde5b11c07b7433a7

Threat Level: Known bad

The file 19102023_2336_18102023_Delivery information GCBAC71854.jar was found to be: Known bad.

Malicious Activity Summary

strrat

Strrat family

Drops file in Program Files directory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-10-19 15:36

Signatures

Strrat family

strrat

Analysis: behavioral1

Detonation Overview

Submitted

2023-10-19 15:36

Reported

2023-10-19 15:39

Platform

win7-20230831-en

Max time kernel

146s

Max time network

137s

Command Line

java -jar "C:\Users\Admin\AppData\Local\Temp\19102023_2336_18102023_Delivery information GCBAC71854.jar"

Signatures

N/A

Processes

C:\Windows\system32\java.exe

java -jar "C:\Users\Admin\AppData\Local\Temp\19102023_2336_18102023_Delivery information GCBAC71854.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
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
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
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
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
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
DE 140.82.121.3:443 github.com tcp

Files

memory/1884-9-0x0000000002130000-0x0000000005130000-memory.dmp

memory/1884-10-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-17-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-19-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-20-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-25-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-30-0x0000000002130000-0x0000000005130000-memory.dmp

memory/1884-33-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-37-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-39-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-40-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-42-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-50-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-51-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-52-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-55-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-63-0x0000000000620000-0x0000000000621000-memory.dmp

memory/1884-82-0x0000000000620000-0x0000000000621000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-19 15:36

Reported

2023-10-19 15:39

Platform

win10v2004-20230915-en

Max time kernel

139s

Max time network

147s

Command Line

java -jar "C:\Users\Admin\AppData\Local\Temp\19102023_2336_18102023_Delivery information GCBAC71854.jar"

Signatures

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\ntdll.pdb C:\ProgramData\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\dll\ntdll.pdb C:\ProgramData\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\jvm.pdb C:\ProgramData\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\dll\jvm.pdb C:\ProgramData\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\jvm.pdb C:\ProgramData\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\dll\jvm.pdb C:\ProgramData\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\ntdll.pdb C:\ProgramData\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\symbols\dll\ntdll.pdb C:\ProgramData\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\symbols\dll\ntdll.pdb C:\ProgramData\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\symbols\dll\jvm.pdb C:\ProgramData\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\symbols\dll\jvm.pdb C:\ProgramData\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\dll\ntdll.pdb C:\ProgramData\Oracle\Java\javapath\java.exe N/A

Processes

C:\ProgramData\Oracle\Java\javapath\java.exe

java -jar "C:\Users\Admin\AppData\Local\Temp\19102023_2336_18102023_Delivery information GCBAC71854.jar"

Network

Country Destination Domain Proto
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 254.7.248.8.in-addr.arpa udp
US 8.8.8.8:53 123.10.44.20.in-addr.arpa udp

Files

memory/3556-2-0x0000000003190000-0x0000000004190000-memory.dmp

memory/3556-11-0x0000000001550000-0x0000000001551000-memory.dmp

memory/3556-23-0x0000000003190000-0x0000000004190000-memory.dmp

memory/3556-24-0x0000000001550000-0x0000000001551000-memory.dmp

memory/3556-32-0x0000000003190000-0x0000000004190000-memory.dmp

memory/3556-38-0x0000000003190000-0x0000000004190000-memory.dmp

memory/3556-40-0x0000000003420000-0x0000000003430000-memory.dmp

memory/3556-41-0x0000000003480000-0x0000000003490000-memory.dmp

memory/3556-42-0x0000000003440000-0x0000000003450000-memory.dmp

memory/3556-44-0x0000000003460000-0x0000000003470000-memory.dmp

memory/3556-43-0x0000000003450000-0x0000000003460000-memory.dmp

memory/3556-45-0x0000000003470000-0x0000000003480000-memory.dmp

memory/3556-46-0x0000000003190000-0x0000000004190000-memory.dmp