Malware Analysis Report

2025-01-02 09:42

Sample ID 240902-mxawjsycmn
Target e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d
SHA256 e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d
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

e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d

Threat Level: Known bad

The file e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Downloads MZ/PE file

Checks computer location settings

Program crash

Unsigned PE

Enumerates physical storage devices

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 10:50

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-02 10:50

Reported

2024-09-02 10:52

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.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\e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.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\e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.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\e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.exe

"C:\Users\Admin\AppData\Local\Temp\e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2740 -ip 2740

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2740 -s 1580

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.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 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/2740-1-0x0000000000580000-0x0000000000680000-memory.dmp

memory/2740-2-0x00000000020B0000-0x00000000020EC000-memory.dmp

memory/2740-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2740-8-0x0000000010000000-0x000000001001C000-memory.dmp

memory/2740-13-0x0000000000580000-0x0000000000680000-memory.dmp

memory/2740-15-0x0000000000400000-0x0000000000453000-memory.dmp

memory/2740-16-0x00000000020B0000-0x00000000020EC000-memory.dmp

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

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/2740-18-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2740-29-0x0000000000400000-0x0000000000453000-memory.dmp

memory/2740-35-0x0000000000400000-0x0000000000453000-memory.dmp

memory/2740-36-0x0000000000400000-0x000000000043F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-02 10:50

Reported

2024-09-02 10:52

Platform

win11-20240802-en

Max time kernel

91s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.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\e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.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\e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.exe

"C:\Users\Admin\AppData\Local\Temp\e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "e5fd67a9b4d65ce3c03b1728f0783a15ff8a85b1c8d5c7e1abf5ff5d83e1bb5d.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1116 -ip 1116

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 1668

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/1116-1-0x00007FF968EE0000-0x00007FF9690E9000-memory.dmp

memory/1116-6-0x0000000010000000-0x000000001001C000-memory.dmp

memory/1116-11-0x00007FF968EE0000-0x00007FF9690E9000-memory.dmp

memory/1116-13-0x0000000000400000-0x0000000000453000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6LUG8YDR\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/1116-25-0x0000000000400000-0x0000000000453000-memory.dmp

memory/1116-31-0x0000000000400000-0x0000000000453000-memory.dmp

memory/1116-32-0x00007FF968EE0000-0x00007FF9690E9000-memory.dmp