Malware Analysis Report

2024-08-06 10:14

Sample ID 240611-nw1k9awakd
Target 9e10bb075bf715d7104a2f51ddfcf364_JaffaCakes118
SHA256 bb55aa6fb198d5979795d3fb45bc73a1e1cc6f1c56ad97c7337bcf0bd666b128
Tags
540008837 cobaltstrike
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

bb55aa6fb198d5979795d3fb45bc73a1e1cc6f1c56ad97c7337bcf0bd666b128

Threat Level: Known bad

The file 9e10bb075bf715d7104a2f51ddfcf364_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

540008837 cobaltstrike

Cobaltstrike family

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-11 11:45

Signatures

Cobaltstrike family

cobaltstrike

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-11 11:45

Reported

2024-06-11 11:48

Platform

win7-20240221-en

Max time kernel

122s

Max time network

127s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\9e10bb075bf715d7104a2f51ddfcf364_JaffaCakes118.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2456 wrote to memory of 1624 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2456 wrote to memory of 1624 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2456 wrote to memory of 1624 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2456 wrote to memory of 1624 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2456 wrote to memory of 1624 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2456 wrote to memory of 1624 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2456 wrote to memory of 1624 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\9e10bb075bf715d7104a2f51ddfcf364_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\9e10bb075bf715d7104a2f51ddfcf364_JaffaCakes118.dll,#1

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-11 11:45

Reported

2024-06-11 11:48

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\9e10bb075bf715d7104a2f51ddfcf364_JaffaCakes118.dll,#1

Signatures

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 2236 wrote to memory of 3060 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2236 wrote to memory of 3060 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2236 wrote to memory of 3060 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\9e10bb075bf715d7104a2f51ddfcf364_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\9e10bb075bf715d7104a2f51ddfcf364_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3060 -ip 3060

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3060 -s 636

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp

Files

N/A