Malware Analysis Report

2025-01-03 09:11

Sample ID 240620-nl6phsyhll
Target 0595edb951f5e337550da58e1e4af83d_JaffaCakes118
SHA256 14601a1ffb5ca1b9cf7f66e191aa671a1efffc3d22d561d4fc520ea4e518d588
Tags
bootkit persistence
score
8/10

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
8/10

SHA256

14601a1ffb5ca1b9cf7f66e191aa671a1efffc3d22d561d4fc520ea4e518d588

Threat Level: Likely malicious

The file 0595edb951f5e337550da58e1e4af83d_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

bootkit persistence

Drops file in Drivers directory

Executes dropped EXE

Writes to the Master Boot Record (MBR)

Suspicious use of SetThreadContext

Drops file in Program Files directory

Program crash

Unsigned PE

Suspicious behavior: LoadsDriver

Suspicious use of WriteProcessMemory

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-20 11:30

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-20 11:30

Reported

2024-06-20 11:32

Platform

win7-20240221-en

Max time kernel

140s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2964 -s 300

Network

N/A

Files

memory/2964-0-0x0000000000400000-0x00000000004BC000-memory.dmp

memory/2964-1-0x0000000000230000-0x00000000002EC000-memory.dmp

memory/2964-3-0x0000000000492000-0x0000000000493000-memory.dmp

memory/2964-2-0x00000000002A0000-0x00000000002D5000-memory.dmp

memory/2964-4-0x0000000000400000-0x00000000004BC000-memory.dmp

memory/2964-6-0x0000000000400000-0x00000000004BC000-memory.dmp

memory/2964-5-0x0000000000400000-0x00000000004BC000-memory.dmp

memory/2964-8-0x00000000002A0000-0x00000000002D5000-memory.dmp

memory/2964-9-0x0000000000492000-0x0000000000493000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-20 11:30

Reported

2024-06-20 11:32

Platform

win10v2004-20240611-en

Max time kernel

136s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe"

Signatures

Drops file in Drivers directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\drivers\beep.sys C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\NetMeeting\mstinit.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4408 set thread context of 3824 N/A C:\Program Files (x86)\NetMeeting\mstinit.exe C:\Windows\SysWOW64\svchost.exe

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\NetMeeting\mstinit.exe C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\svchost.exe

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ C:\Program Files (x86)\NetMeeting\mstinit.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" C:\Program Files (x86)\NetMeeting\mstinit.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key C:\Program Files (x86)\NetMeeting\mstinit.exe N/A

Suspicious behavior: LoadsDriver

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

Processes

C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0595edb951f5e337550da58e1e4af83d_JaffaCakes118.exe"

C:\Program Files (x86)\NetMeeting\mstinit.exe

"C:\Program Files (x86)\NetMeeting\mstinit.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Windows\system32\svchost.exe" 40706

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3824 -ip 3824

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3824 -s 12

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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 89.90.14.23.in-addr.arpa udp
NL 23.62.61.72:443 www.bing.com tcp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 72.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.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

Files

memory/2664-0-0x0000000000400000-0x00000000004BC000-memory.dmp

memory/2664-1-0x00000000005D0000-0x0000000000605000-memory.dmp

memory/2664-5-0x0000000002380000-0x0000000002381000-memory.dmp

memory/2664-16-0x0000000002380000-0x0000000002381000-memory.dmp

memory/2664-15-0x0000000002380000-0x0000000002381000-memory.dmp

memory/2664-14-0x0000000002380000-0x0000000002381000-memory.dmp

memory/2664-22-0x0000000002330000-0x0000000002331000-memory.dmp

memory/2664-21-0x0000000000570000-0x0000000000571000-memory.dmp

memory/2664-20-0x0000000000560000-0x0000000000561000-memory.dmp

memory/2664-19-0x0000000002320000-0x0000000002321000-memory.dmp

memory/2664-18-0x0000000002300000-0x0000000002301000-memory.dmp

memory/2664-17-0x0000000002370000-0x0000000002371000-memory.dmp

memory/2664-13-0x0000000002380000-0x0000000002381000-memory.dmp

memory/2664-12-0x0000000002380000-0x0000000002381000-memory.dmp

memory/2664-11-0x0000000002380000-0x0000000002381000-memory.dmp

memory/2664-10-0x0000000002380000-0x0000000002381000-memory.dmp

memory/2664-9-0x0000000002380000-0x0000000002381000-memory.dmp

memory/2664-8-0x0000000002380000-0x0000000002381000-memory.dmp

memory/2664-7-0x0000000002380000-0x0000000002381000-memory.dmp

memory/2664-6-0x0000000002380000-0x0000000002381000-memory.dmp

memory/2664-4-0x0000000002380000-0x0000000002381000-memory.dmp

memory/2664-2-0x0000000002310000-0x0000000002313000-memory.dmp

memory/2664-3-0x0000000002370000-0x0000000002371000-memory.dmp

C:\Program Files (x86)\NetMeeting\mstinit.exe

MD5 0595edb951f5e337550da58e1e4af83d
SHA1 9b41d470b1489a43c0c92df9ed1fe147db829e88
SHA256 14601a1ffb5ca1b9cf7f66e191aa671a1efffc3d22d561d4fc520ea4e518d588
SHA512 ff7555d91cee17d31f33ba907cd59404173d495cf622b8006f18efdd04d362673e0b3576bb4d27c9a872082b263141308cbc8758b005450ba7ad72083dc77bb7

memory/3824-29-0x0000000000400000-0x00000000004BC000-memory.dmp

memory/4408-31-0x0000000000400000-0x00000000004BC000-memory.dmp

memory/2664-33-0x00000000005D0000-0x0000000000605000-memory.dmp

memory/2664-32-0x0000000000400000-0x00000000004BC000-memory.dmp