Malware Analysis Report

2025-01-02 09:44

Sample ID 240903-zjn78sxfmg
Target 134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119
SHA256 134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119
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

134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119

Threat Level: Known bad

The file 134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119 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

2024-09-03 20:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-03 20:45

Reported

2024-09-03 20:47

Platform

win10v2004-20240802-en

Max time kernel

94s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe"

Signatures

GCleaner

loader gcleaner

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.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\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.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\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe

"C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4468 -ip 4468

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 444

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4468 -ip 4468

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4468 -ip 4468

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 784

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4468 -ip 4468

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 820

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4468 -ip 4468

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 836

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4468 -ip 4468

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 928

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4468 -ip 4468

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 1004

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4468 -ip 4468

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 1100

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4468 -ip 4468

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 1664

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4468 -ip 4468

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 508

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.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 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/4468-1-0x00000000006E0000-0x00000000007E0000-memory.dmp

memory/4468-2-0x0000000000690000-0x00000000006CC000-memory.dmp

memory/4468-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/4468-8-0x0000000010000000-0x000000001001C000-memory.dmp

memory/4468-13-0x00000000006E0000-0x00000000007E0000-memory.dmp

memory/4468-14-0x0000000000400000-0x00000000005FE000-memory.dmp

memory/4468-16-0x0000000000690000-0x00000000006CC000-memory.dmp

memory/4468-17-0x0000000000400000-0x000000000043F000-memory.dmp

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

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/4468-27-0x0000000000400000-0x00000000005FE000-memory.dmp

memory/4468-36-0x0000000000400000-0x000000000043F000-memory.dmp

memory/4468-35-0x0000000000400000-0x00000000005FE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-03 20:45

Reported

2024-09-03 20:47

Platform

win11-20240802-en

Max time kernel

91s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe"

Signatures

GCleaner

loader gcleaner

Downloads MZ/PE file

Enumerates physical storage devices

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe

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\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.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\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe

"C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2568 -ip 2568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 484

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2568 -ip 2568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 804

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2568 -ip 2568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 844

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2568 -ip 2568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 864

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2568 -ip 2568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 896

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2568 -ip 2568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2568 -ip 2568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 1108

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2568 -ip 2568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 1396

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 380 -p 2568 -ip 2568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 1660

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "134632ee7c27ac7c859127e0814a3076e5aaf33fb2d3058a14ab7a973af3a119.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2568 -ip 2568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 1680

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 380 -p 2568 -ip 2568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 1720

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 2568 -ip 2568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 472

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/2568-1-0x00000000007E0000-0x00000000008E0000-memory.dmp

memory/2568-2-0x0000000002300000-0x000000000233C000-memory.dmp

memory/2568-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2568-8-0x0000000010000000-0x000000001001C000-memory.dmp

memory/2568-13-0x00000000007E0000-0x00000000008E0000-memory.dmp

memory/2568-15-0x0000000002300000-0x000000000233C000-memory.dmp

memory/2568-17-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2568-16-0x0000000000400000-0x00000000005FE000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\OZ1VS64O\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/2568-34-0x0000000000400000-0x00000000005FE000-memory.dmp

memory/2568-35-0x0000000000400000-0x00000000005FE000-memory.dmp

memory/2568-36-0x0000000000400000-0x000000000043F000-memory.dmp