Malware Analysis Report

2025-08-11 03:49

Sample ID 240409-ltv7msfc7x
Target e9b8409eba47f1fef53cc68a61bcc8a8_JaffaCakes118
SHA256 7ff70d5ecc0be951b2acf860d11168fcdb25b73b4c519e59348bed22de78964a
Tags
upx themida evasion trojan
score
9/10

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
9/10

SHA256

7ff70d5ecc0be951b2acf860d11168fcdb25b73b4c519e59348bed22de78964a

Threat Level: Likely malicious

The file e9b8409eba47f1fef53cc68a61bcc8a8_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

upx themida evasion trojan

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

Themida packer

UPX packed file

Checks BIOS information in registry

Checks whether UAC is enabled

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-09 09:50

Signatures

Themida packer

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

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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-09 09:49

Reported

2024-04-09 09:52

Platform

win7-20240221-en

Max time kernel

142s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e9b8409eba47f1fef53cc68a61bcc8a8_JaffaCakes118.exe"

Signatures

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\e9b8409eba47f1fef53cc68a61bcc8a8_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\e9b8409eba47f1fef53cc68a61bcc8a8_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\e9b8409eba47f1fef53cc68a61bcc8a8_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

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\e9b8409eba47f1fef53cc68a61bcc8a8_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e9b8409eba47f1fef53cc68a61bcc8a8_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e9b8409eba47f1fef53cc68a61bcc8a8_JaffaCakes118.exe"

Network

N/A

Files

memory/2304-0-0x0000000000400000-0x0000000000C28000-memory.dmp

memory/2304-1-0x0000000000400000-0x0000000000C28000-memory.dmp

memory/2304-2-0x0000000000400000-0x0000000000C28000-memory.dmp

memory/2304-5-0x0000000000400000-0x0000000000C28000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-09 09:49

Reported

2024-04-09 09:52

Platform

win10v2004-20240226-en

Max time kernel

152s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e9b8409eba47f1fef53cc68a61bcc8a8_JaffaCakes118.exe"

Signatures

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\e9b8409eba47f1fef53cc68a61bcc8a8_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\e9b8409eba47f1fef53cc68a61bcc8a8_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\e9b8409eba47f1fef53cc68a61bcc8a8_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

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\e9b8409eba47f1fef53cc68a61bcc8a8_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e9b8409eba47f1fef53cc68a61bcc8a8_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e9b8409eba47f1fef53cc68a61bcc8a8_JaffaCakes118.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1340 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
GB 216.58.201.106:443 tcp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 241.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/336-0-0x0000000000400000-0x0000000000C28000-memory.dmp

memory/336-1-0x0000000000400000-0x0000000000C28000-memory.dmp

memory/336-2-0x0000000000400000-0x0000000000C28000-memory.dmp

memory/336-3-0x0000000000400000-0x0000000000C28000-memory.dmp