Malware Analysis Report

2025-01-22 13:49

Sample ID 240907-hrev4a1blj
Target d1568f14823089ebe25ffe06fed9a817_JaffaCakes118
SHA256 c67878e00a99a72a6f8cc2e66e2fa937fe8158b353c69b9e1e6db7dd113517dc
Tags
hacked njrat discovery evasion persistence privilege_escalation trojan
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

c67878e00a99a72a6f8cc2e66e2fa937fe8158b353c69b9e1e6db7dd113517dc

Threat Level: Known bad

The file d1568f14823089ebe25ffe06fed9a817_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

hacked njrat discovery evasion persistence privilege_escalation trojan

njRAT/Bladabindi

Njrat family

Modifies Windows Firewall

Drops startup file

Executes dropped EXE

Checks computer location settings

Adds Run key to start application

Drops file in Windows directory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Event Triggered Execution: Netsh Helper DLL

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-07 06:57

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-07 06:57

Reported

2024-09-07 07:00

Platform

win7-20240708-en

Max time kernel

149s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d1568f14823089ebe25ffe06fed9a817_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\5b3e54e9cc617e65ba54f23d81df86b3.exe C:\Windows\skaype.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5b3e54e9cc617e65ba54f23d81df86b3.exe C:\Windows\skaype.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\skaype.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\5b3e54e9cc617e65ba54f23d81df86b3 = "\"C:\\Windows\\skaype.exe\" .." C:\Windows\skaype.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5b3e54e9cc617e65ba54f23d81df86b3 = "\"C:\\Windows\\skaype.exe\" .." C:\Windows\skaype.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\skaype.exe C:\Users\Admin\AppData\Local\Temp\d1568f14823089ebe25ffe06fed9a817_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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\d1568f14823089ebe25ffe06fed9a817_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\skaype.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\netsh.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d1568f14823089ebe25ffe06fed9a817_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\d1568f14823089ebe25ffe06fed9a817_JaffaCakes118.exe"

C:\Windows\skaype.exe

"C:\Windows\skaype.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Windows\skaype.exe" "skaype.exe" ENABLE

Network

Country Destination Domain Proto
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp

Files

memory/2420-0-0x00000000740B1000-0x00000000740B2000-memory.dmp

memory/2420-1-0x00000000740B0000-0x000000007465B000-memory.dmp

memory/2420-2-0x00000000740B0000-0x000000007465B000-memory.dmp

C:\Windows\skaype.exe

MD5 d1568f14823089ebe25ffe06fed9a817
SHA1 d5b7c7174a5051a89d10f7f84ef35d796a1b44b8
SHA256 c67878e00a99a72a6f8cc2e66e2fa937fe8158b353c69b9e1e6db7dd113517dc
SHA512 57562c798ae6a87baebece29a220f7fbc25b81d5b637fb8ff7715998aaf7761d68030dbed0192c42b180f6c0894d79565346cff4387f8af8df06de6078abd264

memory/2104-9-0x00000000740B0000-0x000000007465B000-memory.dmp

memory/2420-10-0x00000000740B0000-0x000000007465B000-memory.dmp

memory/2104-12-0x00000000740B0000-0x000000007465B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-07 06:57

Reported

2024-09-07 07:00

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d1568f14823089ebe25ffe06fed9a817_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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\d1568f14823089ebe25ffe06fed9a817_JaffaCakes118.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5b3e54e9cc617e65ba54f23d81df86b3.exe C:\Windows\skaype.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5b3e54e9cc617e65ba54f23d81df86b3.exe C:\Windows\skaype.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\skaype.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5b3e54e9cc617e65ba54f23d81df86b3 = "\"C:\\Windows\\skaype.exe\" .." C:\Windows\skaype.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\5b3e54e9cc617e65ba54f23d81df86b3 = "\"C:\\Windows\\skaype.exe\" .." C:\Windows\skaype.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\skaype.exe C:\Users\Admin\AppData\Local\Temp\d1568f14823089ebe25ffe06fed9a817_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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\skaype.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\netsh.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\d1568f14823089ebe25ffe06fed9a817_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A
Token: 33 N/A C:\Windows\skaype.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\skaype.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d1568f14823089ebe25ffe06fed9a817_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\d1568f14823089ebe25ffe06fed9a817_JaffaCakes118.exe"

C:\Windows\skaype.exe

"C:\Windows\skaype.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Windows\skaype.exe" "skaype.exe" ENABLE

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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp

Files

memory/3304-0-0x0000000074882000-0x0000000074883000-memory.dmp

memory/3304-1-0x0000000074880000-0x0000000074E31000-memory.dmp

memory/3304-2-0x0000000074880000-0x0000000074E31000-memory.dmp

C:\Windows\skaype.exe

MD5 d1568f14823089ebe25ffe06fed9a817
SHA1 d5b7c7174a5051a89d10f7f84ef35d796a1b44b8
SHA256 c67878e00a99a72a6f8cc2e66e2fa937fe8158b353c69b9e1e6db7dd113517dc
SHA512 57562c798ae6a87baebece29a220f7fbc25b81d5b637fb8ff7715998aaf7761d68030dbed0192c42b180f6c0894d79565346cff4387f8af8df06de6078abd264

memory/3248-12-0x0000000074880000-0x0000000074E31000-memory.dmp

memory/3304-13-0x0000000074880000-0x0000000074E31000-memory.dmp

memory/3248-14-0x0000000074880000-0x0000000074E31000-memory.dmp

memory/3248-16-0x0000000074880000-0x0000000074E31000-memory.dmp