Malware Analysis Report

2025-08-05 16:59

Sample ID 250127-skdpkatrct
Target JaffaCakes118_40d9f38a80f987940ce78d4923603ec8
SHA256 3e67c10c1008bd1800fed3eb742891a845508bb19d834fe5bb594f73d6bf382b
Tags
discovery upx
score
5/10

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
5/10

SHA256

3e67c10c1008bd1800fed3eb742891a845508bb19d834fe5bb594f73d6bf382b

Threat Level: Likely benign

The file JaffaCakes118_40d9f38a80f987940ce78d4923603ec8 was found to be: Likely benign.

Malicious Activity Summary

discovery upx

UPX packed file

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-27 15:10

Signatures

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-27 15:10

Reported

2025-01-27 15:13

Platform

win7-20240903-en

Max time kernel

15s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40d9f38a80f987940ce78d4923603ec8.exe"

Signatures

UPX packed file

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40d9f38a80f987940ce78d4923603ec8.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40d9f38a80f987940ce78d4923603ec8.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40d9f38a80f987940ce78d4923603ec8.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40d9f38a80f987940ce78d4923603ec8.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 tudou.com udp
US 8.8.8.8:53 google.ca udp

Files

memory/2172-0-0x0000000000400000-0x0000000000437000-memory.dmp

memory/2172-1-0x0000000000240000-0x0000000000241000-memory.dmp

memory/2172-2-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2172-7-0x0000000000400000-0x0000000000417000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-27 15:10

Reported

2025-01-27 15:13

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40d9f38a80f987940ce78d4923603ec8.exe"

Signatures

UPX packed file

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40d9f38a80f987940ce78d4923603ec8.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40d9f38a80f987940ce78d4923603ec8.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40d9f38a80f987940ce78d4923603ec8.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3924 -ip 3924

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3924 -s 744

Network

Country Destination Domain Proto
US 8.8.8.8:53 tudou.com udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 google.ca udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 167.173.78.104.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 94.65.42.20.in-addr.arpa udp

Files

memory/3924-0-0x0000000000400000-0x0000000000437000-memory.dmp

memory/3924-1-0x00000000008B0000-0x00000000008B1000-memory.dmp

memory/3924-3-0x0000000000400000-0x0000000000417000-memory.dmp

memory/3924-8-0x0000000000400000-0x0000000000417000-memory.dmp