Malware Analysis Report

2025-06-16 02:11

Sample ID 240402-qdsh2aag3w
Target 99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.zip
SHA256 657fc1270eb2c6ce78eab6147153a98ea2192fc12861332698195eea64d05674
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

657fc1270eb2c6ce78eab6147153a98ea2192fc12861332698195eea64d05674

Threat Level: Known bad

The file 99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.zip was found to be: Known bad.

Malicious Activity Summary

gcleaner loader

GCleaner

Deletes itself

Checks computer location settings

Enumerates physical storage devices

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-02 13:09

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-02 13:09

Reported

2024-04-02 13:12

Platform

win7-20240221-en

Max time kernel

121s

Max time network

134s

Command Line

"C:\Users\Admin\AppData\Local\Temp\99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.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\99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.exe

"C:\Users\Admin\AppData\Local\Temp\99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.exe" /f

Network

Country Destination Domain Proto
DE 185.172.128.90:80 185.172.128.90 tcp

Files

memory/2600-1-0x0000000000BD0000-0x0000000000CD0000-memory.dmp

memory/2600-2-0x0000000000220000-0x000000000024D000-memory.dmp

memory/2600-3-0x0000000000400000-0x0000000000AF7000-memory.dmp

memory/2600-5-0x0000000000400000-0x0000000000AF7000-memory.dmp

memory/2600-6-0x0000000000BD0000-0x0000000000CD0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-02 13:09

Reported

2024-04-02 13:12

Platform

win10v2004-20240226-en

Max time kernel

92s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.exe"

Signatures

GCleaner

loader gcleaner

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.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\99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.exe

"C:\Users\Admin\AppData\Local\Temp\99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2840 -ip 2840

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 740

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2840 -ip 2840

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 748

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2840 -ip 2840

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 792

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2840 -ip 2840

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 756

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 2840 -ip 2840

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2840 -ip 2840

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2840 -ip 2840

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 1344

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2840 -ip 2840

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 1364

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 202.110.86.104.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
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 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 35.34.16.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/2840-1-0x0000000000B30000-0x0000000000C30000-memory.dmp

memory/2840-2-0x0000000002840000-0x000000000286D000-memory.dmp

memory/2840-3-0x0000000000400000-0x0000000000AF7000-memory.dmp

memory/2840-5-0x0000000000400000-0x0000000000AF7000-memory.dmp

memory/2840-6-0x0000000002840000-0x000000000286D000-memory.dmp