Malware Analysis Report

2025-03-15 05:52

Sample ID 240627-vhtdca1bmd
Target 16c780fbb09cd5abcb5c57828b73231d_JaffaCakes118
SHA256 840961ef4f319562ec92438382c6624821f788b4f4c4f7d32cd4607b2a1c658c
Tags
vmprotect
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

840961ef4f319562ec92438382c6624821f788b4f4c4f7d32cd4607b2a1c658c

Threat Level: Shows suspicious behavior

The file 16c780fbb09cd5abcb5c57828b73231d_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

vmprotect

VMProtect packed file

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-27 16:59

Signatures

VMProtect packed file

vmprotect
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

2024-06-27 16:59

Reported

2024-06-27 17:02

Platform

win7-20240611-en

Max time kernel

120s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\16c780fbb09cd5abcb5c57828b73231d_JaffaCakes118.dll,#1

Signatures

VMProtect packed file

vmprotect
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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2208 wrote to memory of 2212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2208 wrote to memory of 2212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2208 wrote to memory of 2212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2208 wrote to memory of 2212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2208 wrote to memory of 2212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2208 wrote to memory of 2212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2208 wrote to memory of 2212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\16c780fbb09cd5abcb5c57828b73231d_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\16c780fbb09cd5abcb5c57828b73231d_JaffaCakes118.dll,#1

Network

N/A

Files

memory/2212-4-0x000000000047F000-0x0000000000480000-memory.dmp

memory/2212-3-0x0000000000400000-0x0000000000487000-memory.dmp

memory/2212-2-0x0000000000400000-0x0000000000487000-memory.dmp

memory/2212-1-0x0000000000400000-0x0000000000487000-memory.dmp

memory/2212-0-0x0000000000400000-0x0000000000487000-memory.dmp

memory/2212-5-0x0000000000400000-0x0000000000487000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-27 16:59

Reported

2024-06-27 17:02

Platform

win10v2004-20240611-en

Max time kernel

132s

Max time network

127s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\16c780fbb09cd5abcb5c57828b73231d_JaffaCakes118.dll,#1

Signatures

VMProtect packed file

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

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4520 wrote to memory of 4308 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4520 wrote to memory of 4308 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4520 wrote to memory of 4308 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\16c780fbb09cd5abcb5c57828b73231d_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\16c780fbb09cd5abcb5c57828b73231d_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4308 -ip 4308

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4308 -s 656

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 --field-trial-handle=1416,i,17949988676391029604,13756926835471203788,262144 --variations-seed-version --mojo-platform-channel-handle=4428 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp

Files

memory/4308-2-0x0000000000C90000-0x0000000000D17000-memory.dmp

memory/4308-1-0x0000000000D0F000-0x0000000000D11000-memory.dmp

memory/4308-0-0x0000000000C90000-0x0000000000D17000-memory.dmp