Malware Analysis Report

2025-01-02 09:39

Sample ID 240830-pfyx6atcne
Target 14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1
SHA256 14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1
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

14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1

Threat Level: Known bad

The file 14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1 was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Checks computer location settings

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-30 12:16

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-30 12:16

Reported

2024-08-30 12:19

Platform

win10v2004-20240802-en

Max time kernel

135s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe"

Signatures

GCleaner

loader gcleaner

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.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\14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.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\14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe

"C:\Users\Admin\AppData\Local\Temp\14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3652 -ip 3652

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 740

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3652 -ip 3652

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 748

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3652 -ip 3652

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 796

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3652 -ip 3652

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 804

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3652 -ip 3652

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3652 -ip 3652

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3652 -ip 3652

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 1088

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4340,i,1729213506309163284,12809566808978835441,262144 --variations-seed-version --mojo-platform-channel-handle=4036 /prefetch:8

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3652 -ip 3652

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 1416

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3652 -ip 3652

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 1368

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 95.221.229.192.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 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/3652-2-0x00000000007C0000-0x00000000007ED000-memory.dmp

memory/3652-1-0x00000000006C0000-0x00000000007C0000-memory.dmp

memory/3652-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3652-8-0x00000000006C0000-0x00000000007C0000-memory.dmp

memory/3652-9-0x0000000000400000-0x00000000005F5000-memory.dmp

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

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/3652-11-0x00000000007C0000-0x00000000007ED000-memory.dmp

memory/3652-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3652-22-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3652-21-0x0000000000400000-0x00000000005F5000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-30 12:16

Reported

2024-08-30 12:19

Platform

win11-20240802-en

Max time kernel

147s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.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\14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.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\14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe

"C:\Users\Admin\AppData\Local\Temp\14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 568 -ip 568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 776

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 568 -ip 568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 784

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 568 -ip 568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 784

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 568 -ip 568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 808

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 568 -ip 568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 956

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 568 -ip 568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 1080

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 568 -ip 568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 1120

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 568 -ip 568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 1444

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 568 -ip 568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 568 -s 1468

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "14fc30b136fba0eccf1e45c1ff7ee696a01441c74c2068e322f11bae7a8840e1.exe" /f

Network

Country Destination Domain Proto
RU 80.66.75.114:80 80.66.75.114 tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/568-1-0x0000000000890000-0x0000000000990000-memory.dmp

memory/568-2-0x0000000002440000-0x000000000246D000-memory.dmp

memory/568-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/568-8-0x0000000000890000-0x0000000000990000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FF387UFK\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/568-10-0x0000000002440000-0x000000000246D000-memory.dmp

memory/568-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/568-11-0x0000000000400000-0x00000000005F5000-memory.dmp

memory/568-22-0x0000000000400000-0x000000000042F000-memory.dmp

memory/568-21-0x0000000000400000-0x00000000005F5000-memory.dmp