Malware Analysis Report

2025-01-02 09:44

Sample ID 240905-b5fafs1aqp
Target 2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a
SHA256 2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a
Tags
gcleaner discovery loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a

Threat Level: Known bad

The file 2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Checks computer location settings

Program crash

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Kills process with taskkill

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-05 01:43

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-05 01:43

Reported

2024-09-05 01:45

Platform

win11-20240802-en

Max time kernel

147s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe"

Signatures

GCleaner

loader gcleaner

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\2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.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\2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe

"C:\Users\Admin\AppData\Local\Temp\2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4592 -ip 4592

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4592 -ip 4592

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 812

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4592 -ip 4592

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 832

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4592 -ip 4592

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 832

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4592 -ip 4592

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 952

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 4592 -ip 4592

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 956

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 4592 -ip 4592

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 1428

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4592 -ip 4592

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 1536

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/4592-1-0x0000000000570000-0x0000000000670000-memory.dmp

memory/4592-2-0x0000000002160000-0x000000000218D000-memory.dmp

memory/4592-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4592-8-0x0000000000570000-0x0000000000670000-memory.dmp

memory/4592-9-0x0000000000400000-0x000000000044A000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M3DUQV5R\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/4592-11-0x0000000002160000-0x000000000218D000-memory.dmp

memory/4592-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4592-22-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4592-21-0x0000000000400000-0x000000000044A000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-05 01:43

Reported

2024-09-05 01:46

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

108s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe"

Signatures

GCleaner

loader gcleaner

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.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:\Users\Admin\AppData\Local\Temp\2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe N/A
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

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\2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe

"C:\Users\Admin\AppData\Local\Temp\2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4328 -ip 4328

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4328 -s 740

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4328 -ip 4328

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4328 -s 780

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4328 -ip 4328

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4328 -s 780

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4328 -ip 4328

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4328 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4328 -ip 4328

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4328 -s 904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4328 -ip 4328

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4328 -s 908

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4328 -ip 4328

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4328 -s 1020

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 4328 -ip 4328

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4328 -s 1432

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 4328 -ip 4328

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4328 -s 1508

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.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 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
NL 52.111.243.31:443 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

memory/4328-1-0x0000000000720000-0x0000000000820000-memory.dmp

memory/4328-2-0x00000000006F0000-0x000000000071D000-memory.dmp

memory/4328-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4328-8-0x0000000000400000-0x000000000044A000-memory.dmp

memory/4328-9-0x0000000000720000-0x0000000000820000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8M42AOWL\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/4328-11-0x00000000006F0000-0x000000000071D000-memory.dmp

memory/4328-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4328-21-0x0000000000400000-0x000000000044A000-memory.dmp

memory/4328-22-0x0000000000400000-0x000000000042F000-memory.dmp