Malware Analysis Report

2025-04-13 21:38

Sample ID 240825-lkjr9ayglq
Target c073965d0efe5015be9c8d4905171b7f_JaffaCakes118
SHA256 265882a72573f5c2f139d9b17915e719932658a65ff0e0d8255619eab73853f4
Tags
discovery
score
3/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
3/10

SHA256

265882a72573f5c2f139d9b17915e719932658a65ff0e0d8255619eab73853f4

Threat Level: Likely benign

The file c073965d0efe5015be9c8d4905171b7f_JaffaCakes118 was found to be: Likely benign.

Malicious Activity Summary

discovery

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-25 09:35

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-25 09:35

Reported

2024-08-25 09:38

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\c073965d0efe5015be9c8d4905171b7f_JaffaCakes118.dll,#1

Signatures

Program crash

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1564 wrote to memory of 4476 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1564 wrote to memory of 4476 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1564 wrote to memory of 4476 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\c073965d0efe5015be9c8d4905171b7f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\c073965d0efe5015be9c8d4905171b7f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4476 -ip 4476

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4476 -s 636

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.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 10.28.171.150.in-addr.arpa udp

Files

memory/4476-2-0x0000000000C80000-0x0000000000C9F000-memory.dmp

memory/4476-1-0x00000000009E0000-0x00000000009EF000-memory.dmp

memory/4476-0-0x00000000009E0000-0x00000000009EF000-memory.dmp

memory/4476-6-0x0000000010000000-0x000000001001F000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-25 09:35

Reported

2024-08-25 09:38

Platform

win7-20240704-en

Max time kernel

140s

Max time network

20s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\c073965d0efe5015be9c8d4905171b7f_JaffaCakes118.dll,#1

Signatures

Program crash

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\c073965d0efe5015be9c8d4905171b7f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\c073965d0efe5015be9c8d4905171b7f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 248

Network

N/A

Files

memory/1924-5-0x0000000000120000-0x000000000012F000-memory.dmp

memory/1924-1-0x0000000000140000-0x000000000015F000-memory.dmp

memory/1924-0-0x0000000000120000-0x000000000012F000-memory.dmp

memory/1924-7-0x0000000000120000-0x000000000012F000-memory.dmp

memory/1924-6-0x0000000010000000-0x000000001001F000-memory.dmp