Malware Analysis Report

2025-03-15 06:00

Sample ID 240512-bjx85scc74
Target 3777e8c5ea0e26d1ebb8a0cefad729ed_JaffaCakes118
SHA256 33460e443a002d22c1b21bbef57e853a4105e09203504a9aec657ad0725525fa
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

33460e443a002d22c1b21bbef57e853a4105e09203504a9aec657ad0725525fa

Threat Level: Shows suspicious behavior

The file 3777e8c5ea0e26d1ebb8a0cefad729ed_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

2024-05-12 01:11

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

2024-05-12 01:11

Reported

2024-05-12 01:13

Platform

win7-20240221-en

Max time kernel

121s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\pc\paul.dll,#1

Signatures

VMProtect packed file

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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\pc\paul.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\pc\paul.dll,#1

Network

N/A

Files

memory/820-0-0x0000000010000000-0x0000000010026000-memory.dmp

memory/820-3-0x0000000010000000-0x0000000010026000-memory.dmp

memory/820-2-0x0000000010000000-0x0000000010026000-memory.dmp

memory/820-1-0x0000000010000000-0x0000000010026000-memory.dmp

memory/820-4-0x0000000010000000-0x0000000010026000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-12 01:11

Reported

2024-05-12 01:13

Platform

win10v2004-20240508-en

Max time kernel

94s

Max time network

98s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\pc\paul.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

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 3156 wrote to memory of 2340 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3156 wrote to memory of 2340 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3156 wrote to memory of 2340 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\pc\paul.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\pc\paul.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2340 -ip 2340

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2340 -s 552

Network

Country Destination Domain Proto
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 31.251.17.2.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/2340-1-0x0000000010000000-0x0000000010026000-memory.dmp

memory/2340-0-0x0000000010000000-0x0000000010026000-memory.dmp