Malware Analysis Report

2025-01-02 09:45

Sample ID 240903-s7sf8szhnn
Target 44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486
SHA256 44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486
Tags
gcleaner discovery 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

44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486

Threat Level: Known bad

The file 44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486 was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Downloads MZ/PE file

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Program crash

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-03 15:46

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-03 15:46

Reported

2024-09-03 15:48

Platform

win10v2004-20240802-en

Max time kernel

94s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe"

Signatures

GCleaner

loader gcleaner

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\taskkill.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

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\44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe

"C:\Users\Admin\AppData\Local\Temp\44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1356 -ip 1356

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 440

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1356 -ip 1356

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1356 -ip 1356

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1356 -ip 1356

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 1356 -ip 1356

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 796

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1356 -ip 1356

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 928

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 1356 -ip 1356

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 1004

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1356 -ip 1356

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 1108

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1356 -ip 1356

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 1604

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1356 -ip 1356

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 1632

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
RU 80.66.75.114:80 80.66.75.114 tcp
US 8.8.8.8:53 114.75.66.80.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

memory/1356-2-0x0000000000790000-0x00000000007CC000-memory.dmp

memory/1356-1-0x0000000000840000-0x0000000000940000-memory.dmp

memory/1356-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/1356-8-0x0000000010000000-0x000000001001C000-memory.dmp

memory/1356-13-0x0000000000840000-0x0000000000940000-memory.dmp

memory/1356-16-0x0000000000790000-0x00000000007CC000-memory.dmp

memory/1356-15-0x0000000000400000-0x00000000005FE000-memory.dmp

memory/1356-17-0x0000000000400000-0x000000000043F000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\OD2FK6XO\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/1356-29-0x0000000000400000-0x00000000005FE000-memory.dmp

memory/1356-35-0x0000000000400000-0x00000000005FE000-memory.dmp

memory/1356-36-0x0000000000400000-0x000000000043F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-03 15:46

Reported

2024-09-03 15:48

Platform

win11-20240802-en

Max time kernel

91s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe"

Signatures

GCleaner

loader gcleaner

Downloads MZ/PE file

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\taskkill.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe N/A

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\44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe

"C:\Users\Admin\AppData\Local\Temp\44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3560 -ip 3560

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3560 -s 476

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3560 -ip 3560

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3560 -s 796

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3560 -ip 3560

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3560 -s 796

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3560 -ip 3560

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3560 -s 828

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3560 -ip 3560

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3560 -s 868

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3560 -ip 3560

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3560 -s 976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3560 -ip 3560

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3560 -s 984

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3560 -ip 3560

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3560 -s 976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3560 -ip 3560

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3560 -s 1788

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3560 -ip 3560

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3560 -s 516

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe" /f

Network

Country Destination Domain Proto
RU 80.66.75.114:80 80.66.75.114 tcp
US 8.8.8.8:53 114.75.66.80.in-addr.arpa udp

Files

memory/3560-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

memory/3560-2-0x0000000002440000-0x000000000247C000-memory.dmp

memory/3560-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/3560-8-0x0000000010000000-0x000000001001C000-memory.dmp

memory/3560-13-0x00000000006D0000-0x00000000007D0000-memory.dmp

memory/3560-15-0x0000000002440000-0x000000000247C000-memory.dmp

memory/3560-17-0x0000000000400000-0x000000000043F000-memory.dmp

memory/3560-16-0x0000000000400000-0x00000000005FE000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0BP5TNA7\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/3560-29-0x0000000000400000-0x00000000005FE000-memory.dmp

memory/3560-36-0x0000000000400000-0x000000000043F000-memory.dmp

memory/3560-35-0x0000000000400000-0x00000000005FE000-memory.dmp