Malware Analysis Report

2025-01-02 09:37

Sample ID 240506-2g5tbaec4y
Target 3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f
SHA256 3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f
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

3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f

Threat Level: Known bad

The file 3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f was found to be: Known bad.

Malicious Activity Summary

gcleaner loader

GCleaner

Deletes itself

Suspicious use of SetThreadContext

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

2024-05-06 22:34

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-06 22:34

Reported

2024-05-06 22:39

Platform

win7-20240220-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2276 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2276 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2276 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2276 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2276 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2276 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2276 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2276 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2276 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2276 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2276 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2688 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Windows\SysWOW64\cmd.exe
PID 2688 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Windows\SysWOW64\cmd.exe
PID 2688 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Windows\SysWOW64\cmd.exe
PID 2688 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Windows\SysWOW64\cmd.exe
PID 2552 wrote to memory of 2456 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 2552 wrote to memory of 2456 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 2552 wrote to memory of 2456 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 2552 wrote to memory of 2456 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe

"C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe"

C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe

"C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe" /f

Network

Country Destination Domain Proto
DE 185.172.128.90:80 185.172.128.90 tcp

Files

memory/2688-4-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2688-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2276-5-0x00000000003C0000-0x00000000003EE000-memory.dmp

memory/2688-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2276-1-0x0000000000250000-0x0000000000350000-memory.dmp

memory/2688-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2688-10-0x0000000000400000-0x000000000042F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-06 22:34

Reported

2024-05-06 22:39

Platform

win10-20240404-en

Max time kernel

196s

Max time network

299s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2324 wrote to memory of 1444 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2324 wrote to memory of 1444 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2324 wrote to memory of 1444 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2324 wrote to memory of 1444 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2324 wrote to memory of 1444 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2324 wrote to memory of 1444 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2324 wrote to memory of 1444 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2324 wrote to memory of 1444 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2324 wrote to memory of 1444 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 2324 wrote to memory of 1444 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe
PID 1444 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Windows\SysWOW64\cmd.exe
PID 1444 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Windows\SysWOW64\cmd.exe
PID 1444 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe C:\Windows\SysWOW64\cmd.exe
PID 1772 wrote to memory of 1000 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1772 wrote to memory of 1000 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1772 wrote to memory of 1000 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe

"C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe"

C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe

"C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "3f18dfe962d9a1e4e746283212ccb0e1d8a463df4343fb0d29648af348c4ea5f.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 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.0.8.0.8.0.8.0.ip6.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 31.73.42.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/1444-1-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1444-2-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2324-4-0x0000000002D50000-0x0000000002D7E000-memory.dmp

memory/2324-3-0x0000000002D92000-0x0000000002DAE000-memory.dmp

memory/1444-5-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1444-6-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1444-8-0x0000000000400000-0x000000000042F000-memory.dmp