Malware Analysis Report

2025-01-02 09:31

Sample ID 240509-s1mx6scb86
Target 571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43
SHA256 571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43
Tags
gcleaner 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

571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43

Threat Level: Known bad

The file 571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43 was found to be: Known bad.

Malicious Activity Summary

gcleaner loader

GCleaner

Checks computer location settings

Enumerates physical storage devices

Program crash

Unsigned PE

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-09 15:35

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-09 15:35

Reported

2024-05-09 15:38

Platform

win10v2004-20240226-en

Max time kernel

140s

Max time network

160s

Command Line

"C:\Users\Admin\AppData\Local\Temp\571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43.exe"

Signatures

GCleaner

loader gcleaner

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43.exe N/A

Enumerates physical storage devices

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\571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43.exe

"C:\Users\Admin\AppData\Local\Temp\571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4292 -ip 4292

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 748

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4292 -ip 4292

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 756

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4292 -ip 4292

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 756

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4292 -ip 4292

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4292 -ip 4292

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4292 -ip 4292

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4292 -ip 4292

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 1124

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4292 -ip 4292

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 1292

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 --no-appcompat-clear --mojo-platform-channel-handle=3740 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4292 -ip 4292

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 1312

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 22.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 13.107.253.64:443 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
DE 185.172.128.90:80 185.172.128.90 tcp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 216.58.212.234:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 pki.goog udp
US 8.8.8.8:53 pki.goog udp
US 216.239.32.29:80 pki.goog tcp
US 8.8.8.8:53 90.128.172.185.in-addr.arpa udp
US 8.8.8.8:53 234.212.58.216.in-addr.arpa udp
US 8.8.8.8:53 29.32.239.216.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 247.211.222.173.in-addr.arpa udp
US 8.8.8.8:53 10.173.189.20.in-addr.arpa udp

Files

memory/4292-1-0x0000000002B60000-0x0000000002C60000-memory.dmp

memory/4292-2-0x0000000002D90000-0x0000000002DBD000-memory.dmp

memory/4292-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4292-4-0x0000000000400000-0x0000000002AFA000-memory.dmp

memory/4292-8-0x0000000002B60000-0x0000000002C60000-memory.dmp

memory/4292-9-0x0000000002D90000-0x0000000002DBD000-memory.dmp

memory/4292-10-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4292-7-0x0000000000400000-0x0000000002AFA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-09 15:35

Reported

2024-05-09 15:38

Platform

win11-20240419-en

Max time kernel

90s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43.exe"

Signatures

GCleaner

loader gcleaner

Enumerates physical storage devices

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\571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43.exe

"C:\Users\Admin\AppData\Local\Temp\571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4396 -ip 4396

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 4396 -ip 4396

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 792

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4396 -ip 4396

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 824

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4396 -ip 4396

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 872

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4396 -ip 4396

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 4396 -ip 4396

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 984

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4396 -ip 4396

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 1360

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4396 -ip 4396

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 1476

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "571c50939673f8cff8ab7a973b6ae7ebfaf2f0af48275d269f016e5b99d46a43.exe" /f

Network

Country Destination Domain Proto
DE 185.172.128.90:80 185.172.128.90 tcp
US 8.8.8.8:53 90.128.172.185.in-addr.arpa udp

Files

memory/4396-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4396-2-0x0000000002E60000-0x0000000002E8D000-memory.dmp

memory/4396-1-0x0000000002CD0000-0x0000000002DD0000-memory.dmp

memory/4396-4-0x0000000000400000-0x0000000002AFA000-memory.dmp

memory/4396-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4396-6-0x0000000000400000-0x0000000002AFA000-memory.dmp