Malware Analysis Report

2025-01-02 09:44

Sample ID 240905-fgkmgsvala
Target 9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980
SHA256 9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980
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

9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980

Threat Level: Known bad

The file 9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980 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

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-05 04:50

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-05 04:50

Reported

2024-09-05 04:53

Platform

win11-20240802-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.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\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\9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.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\9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe

"C:\Users\Admin\AppData\Local\Temp\9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4848 -ip 4848

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4848 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4848 -ip 4848

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4848 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4848 -ip 4848

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4848 -s 812

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4848 -ip 4848

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4848 -s 860

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4848 -ip 4848

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4848 -s 952

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4848 -ip 4848

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4848 -s 1080

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4848 -ip 4848

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4848 -s 1428

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4848 -ip 4848

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4848 -s 1496

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/4848-1-0x00000000008A0000-0x00000000009A0000-memory.dmp

memory/4848-2-0x0000000002440000-0x000000000246D000-memory.dmp

memory/4848-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4848-8-0x00000000008A0000-0x00000000009A0000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\N0IA4YT0\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/4848-10-0x0000000002440000-0x000000000246D000-memory.dmp

memory/4848-13-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4848-12-0x0000000000400000-0x00000000005FE000-memory.dmp

memory/4848-22-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4848-21-0x0000000000400000-0x00000000005FE000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-05 04:50

Reported

2024-09-05 04:53

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe"

Signatures

GCleaner

loader gcleaner

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.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\9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.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\9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe

"C:\Users\Admin\AppData\Local\Temp\9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 2456 -ip 2456

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 748

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2456 -ip 2456

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 756

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2456 -ip 2456

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 756

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2456 -ip 2456

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 784

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2456 -ip 2456

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2456 -ip 2456

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 980

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2456 -ip 2456

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 1332

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2456 -ip 2456

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 1456

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.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 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.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 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

memory/2456-2-0x00000000008C0000-0x00000000008ED000-memory.dmp

memory/2456-1-0x0000000000950000-0x0000000000A50000-memory.dmp

memory/2456-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2456-8-0x0000000000950000-0x0000000000A50000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\951G8FD5\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/2456-11-0x00000000008C0000-0x00000000008ED000-memory.dmp

memory/2456-10-0x0000000000400000-0x00000000005FE000-memory.dmp

memory/2456-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2456-22-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2456-21-0x0000000000400000-0x00000000005FE000-memory.dmp