Malware Analysis Report

2025-01-22 12:50

Sample ID 240522-h94xyagb95
Target 66774ed9288f2a83766237c609c448f9_JaffaCakes118
SHA256 85a4d6ef8a917e47e62c229486e3797918c104de2d69291d23c9e87b8e38a65c
Tags
vmprotect
score
8/10

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
8/10

SHA256

85a4d6ef8a917e47e62c229486e3797918c104de2d69291d23c9e87b8e38a65c

Threat Level: Likely malicious

The file 66774ed9288f2a83766237c609c448f9_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

vmprotect

Blocklisted process makes network request

VMProtect packed file

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-22 07:27

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

2024-05-22 07:27

Reported

2024-05-22 07:29

Platform

win7-20240221-en

Max time kernel

141s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\66774ed9288f2a83766237c609c448f9_JaffaCakes118.dll,#1

Signatures

Blocklisted process makes network request

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

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

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Program crash

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

Suspicious behavior: EnumeratesProcesses

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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\66774ed9288f2a83766237c609c448f9_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\66774ed9288f2a83766237c609c448f9_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2204 -s 288

Network

Country Destination Domain Proto
US 8.8.8.8:53 setup.roblox.com udp
N/A 127.0.0.1:49206 tcp
N/A 127.0.0.1:49208 tcp
US 52.217.230.176:80 setup.roblox.com tcp
US 8.8.8.8:53 www.xhosted.xyz udp
N/A 127.0.0.1:49211 tcp
N/A 127.0.0.1:49213 tcp
N/A 127.0.0.1:49215 tcp
N/A 127.0.0.1:49217 tcp
US 8.8.8.8:53 setup.roblox.com udp
US 54.231.134.32:80 setup.roblox.com tcp

Files

memory/2204-0-0x00000000734D1000-0x0000000073883000-memory.dmp

memory/2204-1-0x0000000073320000-0x0000000073F1C000-memory.dmp

memory/2204-2-0x0000000000190000-0x0000000000191000-memory.dmp

memory/2204-4-0x0000000000190000-0x0000000000191000-memory.dmp

memory/2204-7-0x00000000001A0000-0x00000000001A1000-memory.dmp

memory/2204-9-0x00000000001A0000-0x00000000001A1000-memory.dmp

memory/2204-6-0x0000000000190000-0x0000000000191000-memory.dmp

memory/2204-11-0x00000000001A0000-0x00000000001A1000-memory.dmp

memory/2204-13-0x0000000073320000-0x0000000073F1C000-memory.dmp

memory/2204-15-0x0000000073320000-0x0000000073F1C000-memory.dmp

memory/2204-18-0x0000000073320000-0x0000000073F1C000-memory.dmp

memory/2204-20-0x00000000734D1000-0x0000000073883000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-22 07:27

Reported

2024-05-22 07:29

Platform

win10v2004-20240426-en

Max time kernel

141s

Max time network

113s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\66774ed9288f2a83766237c609c448f9_JaffaCakes118.dll,#1

Signatures

Blocklisted process makes network request

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

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

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Program crash

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

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3600 wrote to memory of 892 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3600 wrote to memory of 892 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3600 wrote to memory of 892 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\66774ed9288f2a83766237c609c448f9_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\66774ed9288f2a83766237c609c448f9_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 892 -ip 892

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 892 -s 676

Network

Country Destination Domain Proto
US 8.8.8.8:53 setup.roblox.com udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
N/A 127.0.0.1:56894 tcp
N/A 127.0.0.1:56896 tcp
US 54.231.134.32:80 setup.roblox.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
N/A 127.0.0.1:56901 tcp
N/A 127.0.0.1:56903 tcp
US 8.8.8.8:53 www.xhosted.xyz udp
NL 23.62.61.75:443 www.bing.com tcp
US 8.8.8.8:53 32.134.231.54.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 75.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/892-0-0x00000000740E1000-0x0000000074493000-memory.dmp

memory/892-1-0x0000000073F30000-0x0000000074B2C000-memory.dmp

memory/892-4-0x0000000073F30000-0x0000000074B2C000-memory.dmp

memory/892-3-0x0000000002CF0000-0x0000000002CF1000-memory.dmp

memory/892-2-0x0000000002CE0000-0x0000000002CE1000-memory.dmp

memory/892-7-0x0000000073F30000-0x0000000074B2C000-memory.dmp

memory/892-10-0x0000000073F30000-0x0000000074B2C000-memory.dmp

memory/892-11-0x00000000740E1000-0x0000000074493000-memory.dmp