Malware Analysis Report

2025-01-02 09:37

Sample ID 240505-2w3mhagf9z
Target c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5
SHA256 c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5
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

c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5

Threat Level: Known bad

The file c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5 was found to be: Known bad.

Malicious Activity Summary

gcleaner loader

GCleaner

Program crash

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-05 22:56

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-05 22:56

Reported

2024-05-05 23:01

Platform

win7-20240221-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5.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\c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5.exe

"C:\Users\Admin\AppData\Local\Temp\c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5.exe" /f

Network

Country Destination Domain Proto
DE 185.172.128.90:80 185.172.128.90 tcp

Files

memory/2240-1-0x0000000000400000-0x0000000001A22000-memory.dmp

memory/2240-2-0x0000000000400000-0x0000000001A22000-memory.dmp

memory/2240-5-0x0000000000400000-0x0000000001A22000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-05 22:56

Reported

2024-05-05 23:01

Platform

win10-20240404-en

Max time kernel

190s

Max time network

298s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5.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\c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5.exe

"C:\Users\Admin\AppData\Local\Temp\c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 760

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 808

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 740

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 968

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 748

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 1112

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 1176

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 1292

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "c887550a97d682bafb4bfafd001468e269a29a7c12e662e151649831b69bdbd5.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 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 24.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp

Files

memory/4496-2-0x0000000001A90000-0x0000000001ABD000-memory.dmp

memory/4496-1-0x0000000001AD0000-0x0000000001BD0000-memory.dmp

memory/4496-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4496-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4496-6-0x0000000001A90000-0x0000000001ABD000-memory.dmp

memory/4496-5-0x0000000000400000-0x0000000001A22000-memory.dmp