Malware Analysis Report

2025-01-02 09:32

Sample ID 240509-3jxq6add7z
Target d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8
SHA256 d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8
Tags
gcleaner loader
score
10/10

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
10/10

SHA256

d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8

Threat Level: Known bad

The file d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8 was found to be: Known bad.

Malicious Activity Summary

gcleaner loader

GCleaner

Deletes itself

Program crash

Unsigned PE

Enumerates physical storage devices

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-09 23:33

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-09 23:33

Reported

2024-05-09 23:38

Platform

win7-20240221-en

Max time kernel

119s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8.exe"

Signatures

GCleaner

loader gcleaner

Deletes itself

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

Enumerates physical storage devices

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8.exe

"C:\Users\Admin\AppData\Local\Temp\d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8.exe" /f

Network

Country Destination Domain Proto
DE 185.172.128.90:80 185.172.128.90 tcp

Files

memory/1232-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1232-2-0x0000000000220000-0x000000000024D000-memory.dmp

memory/1232-1-0x0000000002C10000-0x0000000002D10000-memory.dmp

memory/1232-6-0x0000000002C10000-0x0000000002D10000-memory.dmp

memory/1232-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1232-5-0x0000000000400000-0x0000000002B05000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-09 23:33

Reported

2024-05-09 23:38

Platform

win10-20240404-en

Max time kernel

270s

Max time network

301s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8.exe"

Signatures

GCleaner

loader gcleaner

Enumerates physical storage devices

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8.exe

"C:\Users\Admin\AppData\Local\Temp\d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4400 -s 760

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4400 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4400 -s 840

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4400 -s 880

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4400 -s 964

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4400 -s 1112

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4400 -s 1124

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4400 -s 1264

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "d5089bb4acd937173a5a3315c697c7d3daa8d8ed685103aaf60e21569d5550c8.exe" /f

Network

Country Destination Domain Proto
DE 185.172.128.90:80 185.172.128.90 tcp
US 8.8.8.8:53 90.128.172.185.in-addr.arpa udp
US 8.8.8.8:53 10.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 76.234.34.23.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp

Files

memory/4400-1-0x0000000002C20000-0x0000000002D20000-memory.dmp

memory/4400-2-0x0000000002B70000-0x0000000002B9D000-memory.dmp

memory/4400-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4400-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4400-7-0x0000000002B70000-0x0000000002B9D000-memory.dmp

memory/4400-5-0x0000000000400000-0x0000000002B05000-memory.dmp

memory/4400-6-0x0000000000400000-0x0000000002B05000-memory.dmp