Malware Analysis Report

2024-11-13 18:33

Sample ID 231229-16lajafbe7
Target 056155b137e1ddc0de9570fbc67198ce
SHA256 92eb16844e647e0f054c3a4b18d5dce0017a4baafccc7b8b02f679706ce3cf90
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

92eb16844e647e0f054c3a4b18d5dce0017a4baafccc7b8b02f679706ce3cf90

Threat Level: Known bad

The file 056155b137e1ddc0de9570fbc67198ce was found to be: Known bad.

Malicious Activity Summary

strrat discovery

Strrat family

Modifies file permissions

Drops file in Program Files directory

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-29 22:15

Signatures

Strrat family

strrat

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-29 22:15

Reported

2023-12-30 09:16

Platform

win7-20231129-en

Max time kernel

149s

Max time network

136s

Command Line

java -jar C:\Users\Admin\AppData\Local\Temp\056155b137e1ddc0de9570fbc67198ce.jar

Signatures

N/A

Processes

C:\Windows\system32\java.exe

java -jar C:\Users\Admin\AppData\Local\Temp\056155b137e1ddc0de9570fbc67198ce.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
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
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 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 github.com tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 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 tcp
US 8.8.8.8:53 udp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 github.com tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 github.com tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 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 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 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 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 tcp
DE 140.82.121.3:443 tcp

Files

memory/2416-5-0x00000000026D0000-0x00000000056D0000-memory.dmp

memory/2416-10-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-17-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-20-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-21-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-24-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-36-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-35-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-34-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-39-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-43-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-44-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-48-0x00000000026D0000-0x00000000056D0000-memory.dmp

memory/2416-51-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-58-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-67-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-71-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-77-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2416-76-0x00000000001D0000-0x00000000001D1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-29 22:15

Reported

2023-12-30 09:16

Platform

win10v2004-20231222-en

Max time kernel

148s

Max time network

120s

Command Line

java -jar C:\Users\Admin\AppData\Local\Temp\056155b137e1ddc0de9570fbc67198ce.jar

Signatures

Modifies file permissions

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

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files\Java\jre-1.8\bin\server\ntdll.pdb C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre-1.8\bin\server\dll\ntdll.pdb C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre-1.8\bin\server\jvm.pdb C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre-1.8\bin\jvm.pdb C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre-1.8\bin\dll\jvm.pdb C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\ntdll.pdb C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre-1.8\bin\ntdll.pdb C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A
File opened for modification C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2712 wrote to memory of 4672 N/A C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe C:\Windows\system32\icacls.exe
PID 2712 wrote to memory of 4672 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\056155b137e1ddc0de9570fbc67198ce.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 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 32.134.221.88.in-addr.arpa udp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 88.221.134.32:80 tcp
GB 88.221.134.32:80 tcp
GB 88.221.135.217:80 tcp
GB 88.221.134.32:80 tcp
GB 88.221.134.32:80 tcp
GB 88.221.134.32:80 tcp
GB 88.221.134.32:80 tcp
GB 88.221.134.32:80 tcp
GB 96.16.110.114:80 tcp
NL 52.142.223.178:80 tcp
GB 88.221.134.32:80 tcp
GB 88.221.134.32:80 tcp
US 8.8.8.8:53 udp
N/A 96.17.178.209:80 tcp
GB 88.221.134.32:80 tcp
N/A 96.17.178.209:80 tcp
US 8.8.8.8:53 udp
GB 88.221.134.32:80 tcp
GB 88.221.134.32:80 tcp
N/A 96.17.178.209:80 tcp
GB 88.221.134.32:80 tcp
US 8.8.8.8:53 udp
GB 88.221.134.32:80 tcp
US 8.8.8.8:53 udp
N/A 20.223.36.55:443 tcp
GB 88.221.134.32:80 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
GB 88.221.134.32:80 tcp
GB 88.221.134.32:80 tcp
GB 88.221.134.32:80 tcp
US 8.8.8.8:53 udp
N/A 138.91.171.81:80 tcp
US 8.8.8.8:53 udp
GB 88.221.134.32:80 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 udp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.16.110.114:80 tcp
US 8.8.8.8:53 udp
N/A 138.91.171.81:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
US 8.8.8.8:53 udp
N/A 20.74.47.205:443 tcp
N/A 20.74.47.205:443 tcp
N/A 20.74.47.205:443 tcp
GB 96.17.178.174:80 tcp
US 8.8.8.8:53 udp
N/A 204.79.197.200:443 tcp
N/A 204.79.197.200:443 tcp
N/A 204.79.197.200:443 tcp
N/A 204.79.197.200:443 tcp
N/A 204.79.197.200:443 tcp
GB 96.17.178.174:80 tcp
US 192.229.221.95:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.16.110.114:80 tcp
US 8.8.8.8:53 udp
N/A 138.91.171.81:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
US 8.8.8.8:53 udp
GB 88.221.134.18:80 tcp
GB 88.221.134.18:80 tcp
GB 88.221.134.18:80 tcp
GB 88.221.134.18:80 tcp
US 8.8.8.8:53 udp
N/A 96.17.178.176:80 tcp
N/A 96.17.178.176:80 tcp
N/A 96.17.178.176:80 tcp
N/A 96.17.178.176:80 tcp
US 8.8.8.8:53 udp
GB 88.221.134.32:80 tcp
GB 88.221.134.18:80 tcp
GB 88.221.134.18:80 tcp
US 8.8.8.8:53 udp
N/A 96.17.178.176:80 tcp
N/A 96.17.178.176:80 tcp
US 8.8.8.8:53 udp
N/A 20.189.173.13:443 tcp
N/A 96.17.178.176:80 tcp
US 192.229.221.95:80 tcp
GB 88.221.134.18:80 tcp
GB 88.221.134.18:80 tcp
N/A 96.17.178.176:80 tcp
N/A 96.17.178.176:80 tcp
US 8.8.8.8:53 udp
N/A 96.17.178.176:80 tcp
GB 88.221.134.18:80 tcp
GB 88.221.134.18:80 tcp
N/A 96.17.178.176:80 tcp
N/A 96.17.178.176:80 tcp
US 8.8.8.8:53 udp
GB 88.221.134.18:80 tcp

Files

memory/2712-4-0x0000020658F90000-0x0000020659F90000-memory.dmp

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

MD5 4f4064658b132765a6aee95a464a7c1e
SHA1 d55ad2df3aea8e0536e1d9e361845d0b222cbe91
SHA256 bd62e241c72ccbb5cc102849b68bd3494f56637a34a0c77696573fbc3e3f9665
SHA512 2fe0b26e3daede5429dab8897ec1bb26fad6d2623b2a4cc72dbccf1d6139a9b1dfb4c4690ebe6675e6861b31a8d483b73dbb8f3903ff88c663e3089acfb22e0d

memory/2712-17-0x0000020659210000-0x0000020659220000-memory.dmp

memory/2712-15-0x0000020658F90000-0x0000020659F90000-memory.dmp

memory/2712-18-0x0000020658F90000-0x0000020659F90000-memory.dmp