Malware Analysis Report

2025-06-15 23:35

Sample ID 241031-r6rb4s1qfr
Target 8356aaef9095b5d686de2160a0f500b7_JaffaCakes118
SHA256 cefb021fe7d8694ca63d2747333e1c9177797e0f3f0f8108cd582bb03ad447bf
Tags
upx bootkit discovery persistence
score
6/10

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
6/10

SHA256

cefb021fe7d8694ca63d2747333e1c9177797e0f3f0f8108cd582bb03ad447bf

Threat Level: Shows suspicious behavior

The file 8356aaef9095b5d686de2160a0f500b7_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx bootkit discovery persistence

Enumerates connected drives

Writes to the Master Boot Record (MBR)

UPX packed file

Drops file in Program Files directory

Unsigned PE

System Location Discovery: System Language Discovery

Modifies system certificate store

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-31 14:48

Signatures

UPX packed file

upx
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

2024-10-31 14:48

Reported

2024-10-31 15:03

Platform

win7-20240903-en

Max time kernel

144s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe"

Signatures

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\o: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\p: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\r: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\v: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\x: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\z: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\l: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\m: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\n: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\u: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\i: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\j: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\k: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\t: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\w: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\y: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\g: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\h: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\q: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\s: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_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\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A

UPX packed file

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

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\SAItest.txt C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_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\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 mokapu.freelandmedia.com udp
US 34.205.242.146:80 mokapu.freelandmedia.com tcp
US 8.8.8.8:53 www.hugedomains.com udp
US 172.67.70.191:443 www.hugedomains.com tcp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 csc3-2004-crl.verisign.com udp
US 8.8.8.8:53 cfgi.hotbar.com udp
US 8.8.8.8:53 cfgi.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 cfgi.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 cfgi.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.19.252.143:80 crl.microsoft.com tcp
US 8.8.8.8:53 cfgi.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 cfgi.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 cfgi.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 cfgi.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp

Files

memory/1560-0-0x0000000000400000-0x0000000000473000-memory.dmp

memory/1560-17-0x0000000000400000-0x0000000000473000-memory.dmp

memory/1560-18-0x0000000000400000-0x0000000000473000-memory.dmp

memory/1560-24-0x0000000000400000-0x0000000000473000-memory.dmp

memory/1560-28-0x0000000000400000-0x0000000000473000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-31 14:48

Reported

2024-10-31 15:00

Platform

win10v2004-20241007-en

Max time kernel

134s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe"

Signatures

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\v: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\y: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\g: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\k: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\l: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\r: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\s: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\i: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\n: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\o: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\q: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\w: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\z: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\h: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\j: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\p: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\t: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\x: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\m: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
File opened (read-only) \??\u: C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_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\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A 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\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\742C3192E607E424EB4549542BE1BBC53E6174E2 C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\742C3192E607E424EB4549542BE1BBC53E6174E2\Blob = 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 C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8356aaef9095b5d686de2160a0f500b7_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 mokapu.freelandmedia.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 3.19.116.195:80 mokapu.freelandmedia.com tcp
US 8.8.8.8:53 www.hugedomains.com udp
US 104.26.6.37:443 www.hugedomains.com tcp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 195.116.19.3.in-addr.arpa udp
US 8.8.8.8:53 37.6.26.104.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 98.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 21.236.111.52.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 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp
US 8.8.8.8:53 tei.hotbar.com udp

Files

memory/1324-0-0x0000000000400000-0x0000000000473000-memory.dmp

memory/1324-5-0x0000000000400000-0x0000000000473000-memory.dmp

memory/1324-8-0x0000000000400000-0x0000000000473000-memory.dmp

memory/1324-9-0x0000000000400000-0x0000000000473000-memory.dmp

memory/1324-13-0x0000000000400000-0x0000000000473000-memory.dmp

memory/1324-16-0x0000000000400000-0x0000000000473000-memory.dmp