Malware Analysis Report

2025-01-02 09:40

Sample ID 240901-q2am5asfmd
Target 5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c
SHA256 5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c
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

5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c

Threat Level: Known bad

The file 5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Downloads MZ/PE file

Checks computer location settings

Program crash

System Location Discovery: System Language Discovery

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

2024-09-01 13:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-01 13:44

Reported

2024-09-01 13:47

Platform

win10v2004-20240802-en

Max time kernel

134s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.exe"

Signatures

GCleaner

loader gcleaner

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.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\5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.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\5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.exe

"C:\Users\Admin\AppData\Local\Temp\5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2076 -ip 2076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 452

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2076 -ip 2076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2076 -ip 2076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 804

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2076 -ip 2076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 808

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2076 -ip 2076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 856

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2076 -ip 2076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 952

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2076 -ip 2076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 960

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2076 -ip 2076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 1032

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2076 -ip 2076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 1560

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 2076 -ip 2076

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 1688

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.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 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.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 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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/2076-1-0x0000000000880000-0x0000000000980000-memory.dmp

memory/2076-2-0x00000000007A0000-0x00000000007DC000-memory.dmp

memory/2076-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2076-8-0x0000000010000000-0x000000001001C000-memory.dmp

memory/2076-13-0x0000000000880000-0x0000000000980000-memory.dmp

memory/2076-16-0x00000000007A0000-0x00000000007DC000-memory.dmp

memory/2076-15-0x0000000000400000-0x00000000005F7000-memory.dmp

memory/2076-17-0x0000000000400000-0x000000000043F000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\4329235D\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/2076-27-0x0000000000400000-0x00000000005F7000-memory.dmp

memory/2076-36-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2076-35-0x0000000000400000-0x00000000005F7000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-01 13:44

Reported

2024-09-01 13:47

Platform

win11-20240802-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.exe"

Signatures

GCleaner

loader gcleaner

Downloads MZ/PE file

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\5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.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\5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.exe

"C:\Users\Admin\AppData\Local\Temp\5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3404 -ip 3404

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3404 -s 476

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3404 -ip 3404

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3404 -s 800

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3404 -ip 3404

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3404 -s 836

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3404 -ip 3404

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3404 -s 856

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3404 -ip 3404

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3404 -s 884

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3404 -ip 3404

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3404 -s 976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3404 -ip 3404

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3404 -s 980

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3404 -ip 3404

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3404 -s 1552

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3404 -ip 3404

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3404 -s 1836

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3404 -ip 3404

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3404 -s 1804

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "5dc00bf5bc7d303d81f0c86ab18ee44da6d04cc92f110f612d9c70fdf9c6cf9c.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
RU 80.66.75.114:80 80.66.75.114 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
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/3404-1-0x0000000000720000-0x0000000000820000-memory.dmp

memory/3404-2-0x0000000002330000-0x000000000236C000-memory.dmp

memory/3404-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/3404-8-0x0000000010000000-0x000000001001C000-memory.dmp

memory/3404-12-0x0000000000720000-0x0000000000820000-memory.dmp

memory/3404-14-0x0000000002330000-0x000000000236C000-memory.dmp

memory/3404-17-0x0000000000400000-0x000000000043F000-memory.dmp

memory/3404-16-0x0000000000400000-0x00000000005F7000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\ZQ9FC15F\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/3404-27-0x0000000000400000-0x00000000005F7000-memory.dmp

memory/3404-36-0x0000000000400000-0x000000000043F000-memory.dmp

memory/3404-35-0x0000000000400000-0x00000000005F7000-memory.dmp