Malware Analysis Report

2024-07-28 14:46

Sample ID 240618-m9fybs1bpc
Target bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118
SHA256 850072b510695bd8649daad557e371b869054361e888d1aa4ffa51cf8e8c7c87
Tags
hacked njrat evasion persistence privilege_escalation trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

850072b510695bd8649daad557e371b869054361e888d1aa4ffa51cf8e8c7c87

Threat Level: Known bad

The file bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

hacked njrat evasion persistence privilege_escalation trojan

Njrat family

njRAT/Bladabindi

Modifies Windows Firewall

Drops startup file

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Enumerates physical storage devices

Event Triggered Execution: Netsh Helper DLL

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Create or Modify System Process
T1543
Windows Service
T1543.003
Event Triggered Execution
T1546
Netsh Helper DLL
T1546.007
Privilege Escalation
TA0004
Create or Modify System Process
T1543
Windows Service
T1543.003
Event Triggered Execution
T1546
Netsh Helper DLL
T1546.007
Defense Evasion
TA0005
Impair Defenses
T1562
Disable or Modify System Firewall
T1562.004
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-18 11:09

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-18 11:09

Reported

2024-06-18 11:12

Platform

win7-20240508-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_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\18df5afc301de09badbb5fa494c2daf3.exe C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\18df5afc301de09badbb5fa494c2daf3.exe C:\Users\Admin\AppData\Local\Temp\server5.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe N/A

Enumerates physical storage devices

Event Triggered Execution: Netsh Helper DLL

persistence privilege_escalation
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key queried \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1924 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\server5.exe
PID 1924 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\server5.exe
PID 1924 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\server5.exe
PID 1924 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\server5.exe
PID 2616 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe C:\Windows\SysWOW64\netsh.exe
PID 2616 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe C:\Windows\SysWOW64\netsh.exe
PID 2616 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe C:\Windows\SysWOW64\netsh.exe
PID 2616 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\server5.exe

"C:\Users\Admin\AppData\Local\Temp\server5.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server5.exe" "server5.exe" ENABLE

Network

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

Files

memory/1924-0-0x00000000741B1000-0x00000000741B2000-memory.dmp

memory/1924-1-0x00000000741B0000-0x000000007475B000-memory.dmp

memory/1924-2-0x00000000741B0000-0x000000007475B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\server5.exe

MD5 bb9d4ebcc754a7e6cb7536b735d85fdf
SHA1 62a93b979c2634af2b39520df73249747bbed84c
SHA256 850072b510695bd8649daad557e371b869054361e888d1aa4ffa51cf8e8c7c87
SHA512 e727a8e987da902339c6ceef93e163fedaa8a0a03c5e0784ac919653f0428f8723ebab7d232cef80bd1337956254c4333fba500ee85fdfdc2a80884822e48363

memory/1924-10-0x00000000741B0000-0x000000007475B000-memory.dmp

memory/2616-13-0x00000000741B0000-0x000000007475B000-memory.dmp

memory/2616-12-0x00000000741B0000-0x000000007475B000-memory.dmp

memory/2616-11-0x00000000741B0000-0x000000007475B000-memory.dmp

memory/2616-15-0x00000000741B0000-0x000000007475B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-18 11:09

Reported

2024-06-18 11:12

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\18df5afc301de09badbb5fa494c2daf3.exe C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\18df5afc301de09badbb5fa494c2daf3.exe C:\Users\Admin\AppData\Local\Temp\server5.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A

Enumerates physical storage devices

Event Triggered Execution: Netsh Helper DLL

persistence privilege_escalation
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\server5.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1904 wrote to memory of 3428 N/A C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\server5.exe
PID 1904 wrote to memory of 3428 N/A C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\server5.exe
PID 1904 wrote to memory of 3428 N/A C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\server5.exe
PID 3428 wrote to memory of 1076 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe C:\Windows\SysWOW64\netsh.exe
PID 3428 wrote to memory of 1076 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe C:\Windows\SysWOW64\netsh.exe
PID 3428 wrote to memory of 1076 N/A C:\Users\Admin\AppData\Local\Temp\server5.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\server5.exe

"C:\Users\Admin\AppData\Local\Temp\server5.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server5.exe" "server5.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 miop.ddns.net udp
US 8.8.8.8:53 miop.ddns.net udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 miop.ddns.net udp
US 8.8.8.8:53 miop.ddns.net udp
US 8.8.8.8:53 miop.ddns.net udp
US 8.8.8.8:53 miop.ddns.net udp
US 8.8.8.8:53 miop.ddns.net udp
US 8.8.8.8:53 miop.ddns.net udp
US 8.8.8.8:53 miop.ddns.net udp
US 8.8.8.8:53 miop.ddns.net udp

Files

memory/1904-0-0x0000000074A32000-0x0000000074A33000-memory.dmp

memory/1904-1-0x0000000074A30000-0x0000000074FE1000-memory.dmp

memory/1904-2-0x0000000074A30000-0x0000000074FE1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\server5.exe

MD5 bb9d4ebcc754a7e6cb7536b735d85fdf
SHA1 62a93b979c2634af2b39520df73249747bbed84c
SHA256 850072b510695bd8649daad557e371b869054361e888d1aa4ffa51cf8e8c7c87
SHA512 e727a8e987da902339c6ceef93e163fedaa8a0a03c5e0784ac919653f0428f8723ebab7d232cef80bd1337956254c4333fba500ee85fdfdc2a80884822e48363

memory/1904-12-0x0000000074A30000-0x0000000074FE1000-memory.dmp

memory/3428-13-0x0000000074A30000-0x0000000074FE1000-memory.dmp

memory/3428-15-0x0000000074A30000-0x0000000074FE1000-memory.dmp