Malware Analysis Report

2025-01-02 05:42

Sample ID 241004-rv83sayhlr
Target 13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118
SHA256 541f800f78c1652a7b3de5e039352163dd44f134e3443b8734307fad034777d6
Tags
sectoprat bootkit discovery evasion persistence rat 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

541f800f78c1652a7b3de5e039352163dd44f134e3443b8734307fad034777d6

Threat Level: Known bad

The file 13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

sectoprat bootkit discovery evasion persistence rat trojan

SectopRAT

SectopRAT payload

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Checks BIOS information in registry

Identifies Wine through registry keys

Writes to the Master Boot Record (MBR)

Checks whether UAC is enabled

Suspicious use of NtSetInformationThreadHideFromDebugger

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-04 14:32

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-04 14:32

Reported

2024-10-04 14:34

Platform

win7-20240708-en

Max time kernel

140s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe"

Signatures

SectopRAT

trojan rat sectoprat

SectopRAT payload

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

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.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\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe"

Network

Country Destination Domain Proto
FI 65.21.162.231:41328 tcp
FI 65.21.162.231:41328 tcp
FI 65.21.162.231:41328 tcp
FI 65.21.162.231:41328 tcp
FI 65.21.162.231:41328 tcp
FI 65.21.162.231:41328 tcp

Files

memory/2852-0-0x0000000001080000-0x00000000015EA000-memory.dmp

memory/2852-2-0x0000000001080000-0x00000000015EA000-memory.dmp

memory/2852-3-0x0000000001080000-0x00000000015EA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-04 14:32

Reported

2024-10-04 14:34

Platform

win10v2004-20240802-en

Max time kernel

140s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe"

Signatures

SectopRAT

trojan rat sectoprat

SectopRAT payload

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

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.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\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\13bf20f68406ccde6c61d0bb0e08d7a9_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
FI 65.21.162.231:41328 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
FI 65.21.162.231:41328 tcp
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 75.117.19.2.in-addr.arpa udp
FI 65.21.162.231:41328 tcp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
FI 65.21.162.231:41328 tcp
US 52.111.229.48:443 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
FI 65.21.162.231:41328 tcp
FI 65.21.162.231:41328 tcp

Files

memory/1948-0-0x00000000003B0000-0x000000000091A000-memory.dmp

memory/1948-2-0x00000000003B0000-0x000000000091A000-memory.dmp

memory/1948-3-0x00000000003B0000-0x000000000091A000-memory.dmp

memory/1948-4-0x0000000007EB0000-0x00000000084C8000-memory.dmp

memory/1948-5-0x00000000078B0000-0x00000000078C2000-memory.dmp

memory/1948-6-0x0000000007910000-0x000000000794C000-memory.dmp

memory/1948-7-0x0000000007950000-0x000000000799C000-memory.dmp

memory/1948-8-0x0000000007BB0000-0x0000000007CBA000-memory.dmp

memory/1948-10-0x00000000003B0000-0x000000000091A000-memory.dmp