Malware Analysis Report

2025-01-22 19:28

Sample ID 240806-kgt85svckq
Target 1308-1-0x0000000048C70000-0x0000000048CBF000-memory.dmp
SHA256 a790b850ad8a01a4ad924fa34577590163e9471cfcaaae3ff729424ad7a5b8c3
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

a790b850ad8a01a4ad924fa34577590163e9471cfcaaae3ff729424ad7a5b8c3

Threat Level: Known bad

The file 1308-1-0x0000000048C70000-0x0000000048CBF000-memory.dmp 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

2024-08-06 08:34

Signatures

Cobaltstrike family

cobaltstrike

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-06 08:34

Reported

2024-08-06 08:37

Platform

win7-20240708-en

Max time kernel

119s

Max time network

123s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1308-1-0x0000000048C70000-0x0000000048CBF000-memory.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2360 wrote to memory of 2252 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe
PID 2360 wrote to memory of 2252 N/A C:\Windows\system32\rundll32.exe C:\Windows\system32\WerFault.exe
PID 2360 wrote to memory of 2252 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\1308-1-0x0000000048C70000-0x0000000048CBF000-memory.dll,#1

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2360 -s 52

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-06 08:34

Reported

2024-08-06 08:37

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1308-1-0x0000000048C70000-0x0000000048CBF000-memory.dll,#1

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1308-1-0x0000000048C70000-0x0000000048CBF000-memory.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 52.111.229.43:443 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

N/A