Malware Analysis Report

2025-03-15 05:49

Sample ID 240623-z4pphasbqf
Target 00db2f1349ceb73138459e21128f04eb_JaffaCakes118
SHA256 d0c0fcd8bc86966bf93849a594e2104aef325b779c1eb45724fe0269a8c76ae1
Tags
bootkit persistence aspackv2
score
7/10

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
7/10

SHA256

d0c0fcd8bc86966bf93849a594e2104aef325b779c1eb45724fe0269a8c76ae1

Threat Level: Shows suspicious behavior

The file 00db2f1349ceb73138459e21128f04eb_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence aspackv2

ASPack v2.12-2.42

Writes to the Master Boot Record (MBR)

Unsigned PE

Modifies registry class

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-23 21:16

Signatures

ASPack v2.12-2.42

aspackv2
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-23 21:16

Reported

2024-06-23 21:19

Platform

win7-20240508-en

Max time kernel

121s

Max time network

127s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\00db2f1349ceb73138459e21128f04eb_JaffaCakes118.dll

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\FLAGS C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\FLAGS\ = "0" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\00db2f1349ceb73138459e21128f04eb_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{D103EBF9-6DD5-4715-863A-00AA27C7935A}\ = "loader" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{D103EBF9-6DD5-4715-863A-00AA27C7935A} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\loader.DLL\AppID = "{D103EBF9-6DD5-4715-863A-00AA27C7935A}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\0 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\0\win32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\HELPDIR C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\ = "loader 1.0 Type Library" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\loader.DLL C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2244 wrote to memory of 2824 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2244 wrote to memory of 2824 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2244 wrote to memory of 2824 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2244 wrote to memory of 2824 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2244 wrote to memory of 2824 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2244 wrote to memory of 2824 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2244 wrote to memory of 2824 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\00db2f1349ceb73138459e21128f04eb_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\00db2f1349ceb73138459e21128f04eb_JaffaCakes118.dll

Network

N/A

Files

memory/2824-0-0x0000000010000000-0x0000000010044000-memory.dmp

memory/2824-1-0x0000000000290000-0x00000000002C0000-memory.dmp

memory/2824-2-0x0000000000240000-0x0000000000244000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-23 21:16

Reported

2024-06-23 21:19

Platform

win10v2004-20240611-en

Max time kernel

139s

Max time network

139s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\00db2f1349ceb73138459e21128f04eb_JaffaCakes118.dll

Signatures

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\ = "loader 1.0 Type Library" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{D103EBF9-6DD5-4715-863A-00AA27C7935A} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\loader.DLL C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\00db2f1349ceb73138459e21128f04eb_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\HELPDIR C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\loader.DLL\AppID = "{D103EBF9-6DD5-4715-863A-00AA27C7935A}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\FLAGS C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\FLAGS\ = "0" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\0 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\0\win32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{D103EBF9-6DD5-4715-863A-00AA27C7935A}\ = "loader" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0 C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2220 wrote to memory of 1644 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2220 wrote to memory of 1644 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2220 wrote to memory of 1644 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\00db2f1349ceb73138459e21128f04eb_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\00db2f1349ceb73138459e21128f04eb_JaffaCakes118.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 104.193.132.51.in-addr.arpa udp

Files

memory/1644-0-0x0000000010000000-0x0000000010044000-memory.dmp

memory/1644-1-0x0000000001EA0000-0x0000000001ED0000-memory.dmp

memory/1644-4-0x0000000001E90000-0x0000000001E91000-memory.dmp

memory/1644-53-0x00000000021F0000-0x00000000021F1000-memory.dmp

memory/1644-52-0x00000000023C0000-0x00000000023C1000-memory.dmp

memory/1644-51-0x00000000023A0000-0x00000000023A1000-memory.dmp

memory/1644-50-0x00000000023B0000-0x00000000023B1000-memory.dmp

memory/1644-49-0x0000000002380000-0x0000000002381000-memory.dmp

memory/1644-48-0x0000000002390000-0x0000000002391000-memory.dmp

memory/1644-47-0x0000000002360000-0x0000000002361000-memory.dmp

memory/1644-46-0x0000000002370000-0x0000000002371000-memory.dmp

memory/1644-45-0x0000000002340000-0x0000000002341000-memory.dmp

memory/1644-44-0x0000000002350000-0x0000000002351000-memory.dmp

memory/1644-43-0x0000000002320000-0x0000000002321000-memory.dmp

memory/1644-42-0x0000000002330000-0x0000000002331000-memory.dmp

memory/1644-41-0x0000000002300000-0x0000000002301000-memory.dmp

memory/1644-40-0x0000000002310000-0x0000000002311000-memory.dmp

memory/1644-39-0x0000000002260000-0x0000000002261000-memory.dmp

memory/1644-38-0x0000000002270000-0x0000000002271000-memory.dmp

memory/1644-37-0x0000000002240000-0x0000000002241000-memory.dmp

memory/1644-36-0x0000000002250000-0x0000000002251000-memory.dmp

memory/1644-35-0x0000000002220000-0x0000000002221000-memory.dmp

memory/1644-34-0x0000000002230000-0x0000000002231000-memory.dmp

memory/1644-33-0x0000000002200000-0x0000000002201000-memory.dmp

memory/1644-32-0x0000000002210000-0x0000000002211000-memory.dmp

memory/1644-31-0x00000000021E0000-0x00000000021E1000-memory.dmp

memory/1644-30-0x00000000021C0000-0x00000000021C1000-memory.dmp

memory/1644-29-0x00000000021D0000-0x00000000021D1000-memory.dmp

memory/1644-28-0x00000000021A0000-0x00000000021A1000-memory.dmp

memory/1644-27-0x00000000021B0000-0x00000000021B1000-memory.dmp

memory/1644-26-0x0000000002180000-0x0000000002181000-memory.dmp

memory/1644-25-0x0000000002190000-0x0000000002191000-memory.dmp

memory/1644-24-0x0000000002150000-0x0000000002151000-memory.dmp

memory/1644-23-0x0000000002160000-0x0000000002161000-memory.dmp

memory/1644-22-0x0000000002130000-0x0000000002131000-memory.dmp

memory/1644-21-0x0000000002140000-0x0000000002141000-memory.dmp

memory/1644-20-0x0000000002110000-0x0000000002111000-memory.dmp

memory/1644-19-0x0000000002120000-0x0000000002121000-memory.dmp

memory/1644-18-0x00000000020F0000-0x00000000020F1000-memory.dmp

memory/1644-17-0x0000000002100000-0x0000000002101000-memory.dmp

memory/1644-16-0x00000000020D0000-0x00000000020D1000-memory.dmp

memory/1644-15-0x00000000020E0000-0x00000000020E1000-memory.dmp

memory/1644-14-0x00000000020B0000-0x00000000020B1000-memory.dmp

memory/1644-13-0x00000000020C0000-0x00000000020C1000-memory.dmp

memory/1644-12-0x0000000002090000-0x0000000002091000-memory.dmp

memory/1644-11-0x00000000020A0000-0x00000000020A1000-memory.dmp

memory/1644-10-0x0000000002070000-0x0000000002071000-memory.dmp

memory/1644-9-0x0000000002080000-0x0000000002081000-memory.dmp

memory/1644-8-0x0000000002050000-0x0000000002051000-memory.dmp

memory/1644-7-0x0000000002060000-0x0000000002061000-memory.dmp

memory/1644-6-0x0000000000530000-0x0000000000531000-memory.dmp

memory/1644-5-0x0000000000520000-0x0000000000521000-memory.dmp

memory/1644-3-0x0000000001E70000-0x0000000001E71000-memory.dmp

memory/1644-2-0x0000000001E80000-0x0000000001E84000-memory.dmp