Malware Analysis Report

2025-01-02 09:44

Sample ID 240905-v2lgvawckl
Target 18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906
SHA256 18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906
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

18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906

Threat Level: Known bad

The file 18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906 was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Checks computer location settings

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Program crash

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-05 17:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-05 17:29

Reported

2024-09-05 17:31

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.exe"

Signatures

GCleaner

loader gcleaner

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.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\18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.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\18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.exe

"C:\Users\Admin\AppData\Local\Temp\18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2596 -ip 2596

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 748

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2596 -ip 2596

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 740

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2596 -ip 2596

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 792

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2596 -ip 2596

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 844

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2596 -ip 2596

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2596 -ip 2596

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 1004

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2596 -ip 2596

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 1136

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2596 -ip 2596

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 1332

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
RU 80.66.75.114:80 80.66.75.114 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 114.75.66.80.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 232.135.221.88.in-addr.arpa udp

Files

memory/2596-1-0x0000000000710000-0x0000000000810000-memory.dmp

memory/2596-2-0x00000000006A0000-0x00000000006CD000-memory.dmp

memory/2596-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2596-7-0x0000000000710000-0x0000000000810000-memory.dmp

memory/2596-10-0x00000000006A0000-0x00000000006CD000-memory.dmp

memory/2596-9-0x0000000000400000-0x00000000005F8000-memory.dmp

memory/2596-11-0x0000000000400000-0x000000000042F000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YYI0S376\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/2596-22-0x0000000000400000-0x00000000005F8000-memory.dmp

memory/2596-23-0x0000000000400000-0x000000000042F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-05 17:29

Reported

2024-09-05 17:31

Platform

win11-20240802-en

Max time kernel

33s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.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:\Users\Admin\AppData\Local\Temp\18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.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\18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.exe

"C:\Users\Admin\AppData\Local\Temp\18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 772 -ip 772

C:\Windows\SysWOW64\WerFault.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 772 -ip 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 816

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 772 -ip 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 860

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 772 -ip 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 876

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 772 -ip 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 952

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 772 -ip 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 956

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 772 -ip 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 1432

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 772 -ip 772

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "18460291ed1fa9ef08bf1c320284b803a8100a55bdaf010503bef68ea1a90906.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 1384

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 772 -ip 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 772 -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
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/772-1-0x0000000000840000-0x0000000000940000-memory.dmp

memory/772-2-0x0000000002460000-0x000000000248D000-memory.dmp

memory/772-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/772-8-0x0000000000840000-0x0000000000940000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FYUCG7L6\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/772-10-0x0000000002460000-0x000000000248D000-memory.dmp

memory/772-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/772-11-0x0000000000400000-0x00000000005F8000-memory.dmp

memory/772-22-0x0000000000400000-0x000000000042F000-memory.dmp

memory/772-21-0x0000000000400000-0x00000000005F8000-memory.dmp