Malware Analysis Report

2025-01-02 09:37

Sample ID 240506-h3kkqada91
Target f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858
SHA256 f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858
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

f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858

Threat Level: Known bad

The file f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858 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

2024-05-06 07:15

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-06 07:15

Reported

2024-05-06 07:18

Platform

win10v2004-20240426-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858.exe"

Signatures

GCleaner

loader gcleaner

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858.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\f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858.exe

"C:\Users\Admin\AppData\Local\Temp\f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 5052 -ip 5052

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5052 -s 740

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 5052 -ip 5052

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5052 -s 780

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 5052 -ip 5052

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5052 -s 816

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 5052 -ip 5052

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5052 -s 864

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 5052 -ip 5052

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5052 -s 904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 5052 -ip 5052

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5052 -s 980

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 5052 -ip 5052

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5052 -s 1356

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 5052 -ip 5052

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5052 -s 1304

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.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 8.8.8.8:53 172.210.232.199.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 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/5052-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/5052-2-0x0000000001B30000-0x0000000001B5D000-memory.dmp

memory/5052-1-0x0000000001BC0000-0x0000000001CC0000-memory.dmp

memory/5052-6-0x0000000000400000-0x000000000042F000-memory.dmp

memory/5052-5-0x0000000000400000-0x0000000001A15000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-06 07:15

Reported

2024-05-06 07:18

Platform

win11-20240426-en

Max time kernel

91s

Max time network

93s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858.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\f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858.exe

"C:\Users\Admin\AppData\Local\Temp\f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3024 -ip 3024

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3024 -ip 3024

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 812

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3024 -ip 3024

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 800

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3024 -ip 3024

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 864

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3024 -ip 3024

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3024 -ip 3024

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 1076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3024 -ip 3024

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 1444

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3024 -ip 3024

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "f15892931a890cb8f1e588a8fcfc42e1fa03fb822ec7f34b6795328caa9dc858.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 1360

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/3024-1-0x0000000001AB0000-0x0000000001BB0000-memory.dmp

memory/3024-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3024-2-0x0000000003720000-0x000000000374D000-memory.dmp

memory/3024-6-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3024-5-0x0000000000400000-0x0000000001A15000-memory.dmp