Malware Analysis Report

2025-01-02 09:31

Sample ID 240509-2tc9tsbd3v
Target 4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140
SHA256 4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140
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

4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140

Threat Level: Known bad

The file 4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140 was found to be: Known bad.

Malicious Activity Summary

gcleaner loader

GCleaner

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 22:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-09 22:52

Reported

2024-05-09 22:57

Platform

win7-20240221-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140.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\4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140.exe

"C:\Users\Admin\AppData\Local\Temp\4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140.exe" /f

Network

Country Destination Domain Proto
DE 185.172.128.90:80 185.172.128.90 tcp

Files

memory/2204-1-0x0000000000400000-0x000000000257A000-memory.dmp

memory/2204-3-0x0000000000400000-0x000000000257A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-09 22:52

Reported

2024-05-09 22:57

Platform

win10-20240404-en

Max time kernel

79s

Max time network

188s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140.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\4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140.exe

"C:\Users\Admin\AppData\Local\Temp\4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1260 -s 760

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1260 -s 808

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1260 -s 812

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1260 -s 968

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1260 -s 944

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1260 -s 1112

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1260 -s 1092

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1260 -s 1264

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "4271be2f7a9d6e54270e3c9d6d137046d2d9402adf26138d0f609bebd810e140.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 30.243.111.52.in-addr.arpa udp

Files

memory/1260-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1260-2-0x00000000026C0000-0x00000000026ED000-memory.dmp

memory/1260-1-0x0000000002770000-0x0000000002870000-memory.dmp

memory/1260-6-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1260-5-0x0000000000400000-0x000000000257A000-memory.dmp