Malware Analysis Report

2025-01-02 09:38

Sample ID 240511-rwallsbf9z
Target 41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2
SHA256 41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2
Tags
gcleaner 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

41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2

Threat Level: Known bad

The file 41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2 was found to be: Known bad.

Malicious Activity Summary

gcleaner loader

GCleaner

Checks computer location settings

Program crash

Unsigned PE

Enumerates physical storage devices

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-11 14:32

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-11 14:32

Reported

2024-05-11 14:34

Platform

win11-20240426-en

Max time kernel

91s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2.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\41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2.exe

"C:\Users\Admin\AppData\Local\Temp\41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1136 -ip 1136

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1136 -ip 1136

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 792

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1136 -ip 1136

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 792

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1136 -ip 1136

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 844

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1136 -ip 1136

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1136 -ip 1136

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 984

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1136 -ip 1136

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 1432

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 1136 -ip 1136

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 1448

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
DE 185.172.128.90:80 185.172.128.90 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
RU 5.42.65.64:80 5.42.65.64 tcp

Files

memory/1136-2-0x00000000042B0000-0x00000000042DD000-memory.dmp

memory/1136-1-0x00000000027D0000-0x00000000028D0000-memory.dmp

memory/1136-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1136-4-0x0000000000400000-0x0000000002581000-memory.dmp

memory/1136-6-0x00000000027D0000-0x00000000028D0000-memory.dmp

memory/1136-7-0x00000000042B0000-0x00000000042DD000-memory.dmp

memory/1136-13-0x0000000000400000-0x0000000002581000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PCRE1VQT\advdlc[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/1136-26-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1136-25-0x0000000000400000-0x0000000002581000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-11 14:32

Reported

2024-05-11 14:34

Platform

win10v2004-20240226-en

Max time kernel

142s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2.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\41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2.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\41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2.exe

"C:\Users\Admin\AppData\Local\Temp\41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 868 -ip 868

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 740

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 868 -ip 868

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 748

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 868 -ip 868

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 796

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 868 -ip 868

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 804

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 868 -ip 868

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 868 -ip 868

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 1000

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 868 -ip 868

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 956

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=1424 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:8

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 868 -ip 868

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 1352

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "41fb870195e106f8ac98aeda520a1e476dafb090b2e88677535fba906c7fbcd2.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
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 8.8.8.8:53 234.212.58.216.in-addr.arpa udp
DE 185.172.128.90:80 185.172.128.90 tcp
US 8.8.8.8:53 29.32.239.216.in-addr.arpa udp
US 8.8.8.8:53 90.128.172.185.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
DE 185.172.128.90:80 185.172.128.90 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
DE 185.172.128.90:80 185.172.128.90 tcp
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 13.107.246.64:443 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
DE 185.172.128.90:80 185.172.128.90 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
RU 5.42.65.64:80 5.42.65.64 tcp
US 8.8.8.8:53 64.65.42.5.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 16.173.189.20.in-addr.arpa udp

Files

memory/868-1-0x0000000002790000-0x0000000002890000-memory.dmp

memory/868-2-0x00000000026F0000-0x000000000271D000-memory.dmp

memory/868-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/868-4-0x0000000000400000-0x0000000002581000-memory.dmp

memory/868-6-0x0000000002790000-0x0000000002890000-memory.dmp

memory/868-7-0x00000000026F0000-0x000000000271D000-memory.dmp

memory/868-13-0x0000000000400000-0x0000000002581000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8ZO46T3J\advdlc[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/868-28-0x0000000000400000-0x000000000042F000-memory.dmp

memory/868-27-0x0000000000400000-0x0000000002581000-memory.dmp