Malware Analysis Report

2025-01-02 09:37

Sample ID 240507-ljerxadc22
Target 925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d
SHA256 925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d
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

925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d

Threat Level: Known bad

The file 925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d was found to be: Known bad.

Malicious Activity Summary

gcleaner loader

GCleaner

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Program crash

Suspicious use of WriteProcessMemory

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-07 09:33

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-07 09:33

Reported

2024-05-07 09:36

Platform

win10v2004-20240226-en

Max time kernel

140s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d.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\925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d.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\925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d.exe

"C:\Users\Admin\AppData\Local\Temp\925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3076 -ip 3076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 740

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3076 -ip 3076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 748

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3076 -ip 3076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 748

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3076 -ip 3076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 784

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3076 -ip 3076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 924

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3076 -ip 3076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 1012

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3076 -ip 3076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 824

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=4440 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3076 -ip 3076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 1344

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3076 -ip 3076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 1372

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d.exe" /f

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 0.205.248.87.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 139.53.16.96.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
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
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 18.173.189.20.in-addr.arpa udp

Files

memory/3076-1-0x0000000002CB0000-0x0000000002DB0000-memory.dmp

memory/3076-2-0x0000000002C10000-0x0000000002C3D000-memory.dmp

memory/3076-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3076-4-0x0000000000400000-0x0000000002B00000-memory.dmp

memory/3076-6-0x0000000002CB0000-0x0000000002DB0000-memory.dmp

memory/3076-7-0x0000000002C10000-0x0000000002C3D000-memory.dmp

memory/3076-10-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3076-9-0x0000000000400000-0x0000000002B00000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-07 09:33

Reported

2024-05-07 09:36

Platform

win11-20240426-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d.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\925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d.exe

"C:\Users\Admin\AppData\Local\Temp\925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1264 -ip 1264

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1264 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1264 -ip 1264

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1264 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1264 -ip 1264

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1264 -s 824

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1264 -ip 1264

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1264 -s 868

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1264 -ip 1264

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1264 -s 976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 1264 -ip 1264

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1264 -s 1060

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1264 -ip 1264

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1264 -s 1436

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 1264 -ip 1264

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "925a35418ff76ee035f8f0bdc74572757b1fbc738bcd0fbffd735606986a929d.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1264 -s 1536

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/1264-1-0x0000000002C30000-0x0000000002D30000-memory.dmp

memory/1264-2-0x0000000004840000-0x000000000486D000-memory.dmp

memory/1264-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1264-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1264-6-0x0000000004840000-0x000000000486D000-memory.dmp

memory/1264-5-0x0000000000400000-0x0000000002B00000-memory.dmp