Malware Analysis Report

2025-01-02 09:40

Sample ID 240902-qwysrs1enl
Target 506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57
SHA256 506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57
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

506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57

Threat Level: Known bad

The file 506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57 was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Downloads MZ/PE file

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Program crash

System Location Discovery: System Language Discovery

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-02 13:37

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-02 13:37

Reported

2024-09-02 13:39

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.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\506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.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\506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.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\506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe

"C:\Users\Admin\AppData\Local\Temp\506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 264 -ip 264

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 264 -s 1616

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.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 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 59.238.56.23.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 37.56.20.217.in-addr.arpa udp

Files

memory/264-1-0x0000000000460000-0x0000000000560000-memory.dmp

memory/264-2-0x00000000006E0000-0x000000000071C000-memory.dmp

memory/264-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/264-8-0x0000000010000000-0x000000001001C000-memory.dmp

memory/264-13-0x0000000000460000-0x0000000000560000-memory.dmp

memory/264-15-0x0000000000400000-0x0000000000453000-memory.dmp

memory/264-16-0x00000000006E0000-0x000000000071C000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\THHXO5RX\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/264-18-0x0000000000400000-0x000000000043F000-memory.dmp

memory/264-27-0x0000000000400000-0x0000000000453000-memory.dmp

memory/264-35-0x0000000000400000-0x0000000000453000-memory.dmp

memory/264-36-0x0000000000400000-0x000000000043F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-02 13:37

Reported

2024-09-02 13:39

Platform

win11-20240802-en

Max time kernel

31s

Max time network

51s

Command Line

"C:\Users\Admin\AppData\Local\Temp\506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.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:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\taskkill.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.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\506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe

"C:\Users\Admin\AppData\Local\Temp\506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4760 -ip 4760

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 1664

Network

Country Destination Domain Proto
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

Files

memory/4760-1-0x0000000000610000-0x0000000000710000-memory.dmp

memory/4760-2-0x00000000022D0000-0x000000000230C000-memory.dmp

memory/4760-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/4760-8-0x0000000010000000-0x000000001001C000-memory.dmp

memory/4760-13-0x0000000000610000-0x0000000000710000-memory.dmp

memory/4760-15-0x0000000000400000-0x0000000000453000-memory.dmp

memory/4760-16-0x00000000022D0000-0x000000000230C000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\WC3VGW7B\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/4760-18-0x0000000000400000-0x000000000043F000-memory.dmp

memory/4760-29-0x0000000000400000-0x0000000000453000-memory.dmp

memory/4760-35-0x0000000000400000-0x0000000000453000-memory.dmp

memory/4760-36-0x0000000000400000-0x000000000043F000-memory.dmp