Malware Analysis Report

2025-03-15 08:12

Sample ID 240530-cqdnrabh69
Target 82be041cedd77581f5c13d52677da88c_JaffaCakes118
SHA256 c2f3423a5056730c54508416ff033bd1d9c8041e56d38487434ad2e8b4a4ccd2
Tags
0 cobaltstrike
score
10/10

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
10/10

SHA256

c2f3423a5056730c54508416ff033bd1d9c8041e56d38487434ad2e8b4a4ccd2

Threat Level: Known bad

The file 82be041cedd77581f5c13d52677da88c_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

0 cobaltstrike

Cobaltstrike family

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-30 02:16

Signatures

Cobaltstrike family

cobaltstrike

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-30 02:16

Reported

2024-05-30 02:19

Platform

win7-20240221-en

Max time kernel

121s

Max time network

125s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\82be041cedd77581f5c13d52677da88c_JaffaCakes118.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1220 wrote to memory of 1692 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe
PID 1220 wrote to memory of 1692 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe
PID 1220 wrote to memory of 1692 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\82be041cedd77581f5c13d52677da88c_JaffaCakes118.dll,#1

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 1220 -s 124

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-30 02:16

Reported

2024-05-30 02:19

Platform

win10v2004-20240426-en

Max time kernel

150s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\82be041cedd77581f5c13d52677da88c_JaffaCakes118.dll,#1

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\82be041cedd77581f5c13d52677da88c_JaffaCakes118.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

N/A