Malware Analysis Report

2024-10-19 08:08

Sample ID 240530-f3rb6ahb26
Target 83272ae366111201b532f0c5f22a6fe7_JaffaCakes118
SHA256 dacab3f01eaf2e8c59256124dc47ab03d472a46739918f707f752d9c8d473c1e
Tags
evasion persistence control njrat trojan
score
10/10

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: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

dacab3f01eaf2e8c59256124dc47ab03d472a46739918f707f752d9c8d473c1e

Threat Level: Known bad

The file 83272ae366111201b532f0c5f22a6fe7_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

evasion persistence control njrat trojan

Njrat family

njRAT/Bladabindi

Modifies Windows Firewall

Drops startup file

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-30 05:24

Signatures

Njrat family

njrat

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-30 05:24

Reported

2024-05-30 05:26

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\83272ae366111201b532f0c5f22a6fe7_JaffaCakes118.exe"

Signatures

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\83272ae366111201b532f0c5f22a6fe7_JaffaCakes118.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\07db318145681dc5e0cbb8c76a1a4fa9.exe C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\07db318145681dc5e0cbb8c76a1a4fa9.exe C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\07db318145681dc5e0cbb8c76a1a4fa9 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows Defender.exe\" .." C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\07db318145681dc5e0cbb8c76a1a4fa9 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows Defender.exe\" .." C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\83272ae366111201b532f0c5f22a6fe7_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\83272ae366111201b532f0c5f22a6fe7_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe

"C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe" "Windows Defender.exe" ENABLE

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4180,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=4000 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 25.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 44.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 108.116.69.13.in-addr.arpa udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 id7oomz.ddns.net udp
US 8.8.8.8:53 id7oomz.ddns.net udp

Files

memory/1416-0-0x0000000075132000-0x0000000075133000-memory.dmp

memory/1416-1-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/1416-2-0x0000000075130000-0x00000000756E1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe

MD5 83272ae366111201b532f0c5f22a6fe7
SHA1 7bf1f65586685bea1e0398c582968082728ade0e
SHA256 dacab3f01eaf2e8c59256124dc47ab03d472a46739918f707f752d9c8d473c1e
SHA512 5de81da902a88ce424684dbe6564c280378165b0399f17c40cf939298c7708d840a0a06dbfb08ea19c94529fd326e1e542f50acb81aebb3643271d80c3de94bc

memory/3232-13-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/1416-12-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/3232-14-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/3232-16-0x0000000075130000-0x00000000756E1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-30 05:24

Reported

2024-05-30 05:26

Platform

win7-20240215-en

Max time kernel

149s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\83272ae366111201b532f0c5f22a6fe7_JaffaCakes118.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\07db318145681dc5e0cbb8c76a1a4fa9.exe C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\07db318145681dc5e0cbb8c76a1a4fa9.exe C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\83272ae366111201b532f0c5f22a6fe7_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\07db318145681dc5e0cbb8c76a1a4fa9 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows Defender.exe\" .." C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\07db318145681dc5e0cbb8c76a1a4fa9 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows Defender.exe\" .." C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\83272ae366111201b532f0c5f22a6fe7_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\83272ae366111201b532f0c5f22a6fe7_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe

"C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe" "Windows Defender.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 id7oomz.ddns.net udp

Files

memory/2348-0-0x0000000074BB1000-0x0000000074BB2000-memory.dmp

memory/2348-1-0x0000000074BB0000-0x000000007515B000-memory.dmp

memory/2348-2-0x0000000074BB0000-0x000000007515B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Windows Defender.exe

MD5 83272ae366111201b532f0c5f22a6fe7
SHA1 7bf1f65586685bea1e0398c582968082728ade0e
SHA256 dacab3f01eaf2e8c59256124dc47ab03d472a46739918f707f752d9c8d473c1e
SHA512 5de81da902a88ce424684dbe6564c280378165b0399f17c40cf939298c7708d840a0a06dbfb08ea19c94529fd326e1e542f50acb81aebb3643271d80c3de94bc

memory/2516-11-0x0000000074BB0000-0x000000007515B000-memory.dmp

memory/2348-10-0x0000000074BB0000-0x000000007515B000-memory.dmp

memory/2516-13-0x0000000074BB0000-0x000000007515B000-memory.dmp

memory/2516-14-0x0000000074BB0000-0x000000007515B000-memory.dmp