Malware Analysis Report

2025-01-02 06:49

Sample ID 241124-lhl5lazmgp
Target b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe
SHA256 b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c
Tags
gcleaner onlylogger discovery loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c

Threat Level: Known bad

The file b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe was found to be: Known bad.

Malicious Activity Summary

gcleaner onlylogger discovery loader

Gcleaner family

OnlyLogger

Onlylogger family

GCleaner

OnlyLogger payload

Deletes itself

Checks computer location settings

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-24 09:32

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-24 09:32

Reported

2024-11-24 09:34

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe"

Signatures

GCleaner

loader gcleaner

Gcleaner family

gcleaner

OnlyLogger

loader onlylogger

Onlylogger family

onlylogger

OnlyLogger payload

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.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:\Windows\SysWOW64\taskkill.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.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\b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe

"C:\Users\Admin\AppData\Local\Temp\b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2904 -ip 2904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 736

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2904 -ip 2904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 776

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2904 -ip 2904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 928

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2904 -ip 2904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 948

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2904 -ip 2904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 928

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2904 -ip 2904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 916

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 2904 -ip 2904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 976

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 41.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/2904-1-0x0000000002FB0000-0x00000000030B0000-memory.dmp

memory/2904-2-0x0000000002F60000-0x0000000002FA9000-memory.dmp

memory/2904-3-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2904-6-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2904-5-0x0000000002F60000-0x0000000002FA9000-memory.dmp

memory/2904-4-0x0000000000400000-0x0000000002DBC000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-24 09:32

Reported

2024-11-24 09:34

Platform

win7-20240903-en

Max time kernel

16s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe"

Signatures

GCleaner

loader gcleaner

Gcleaner family

gcleaner

OnlyLogger

loader onlylogger

Onlylogger family

onlylogger

OnlyLogger payload

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

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

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\b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.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\b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe

"C:\Users\Admin\AppData\Local\Temp\b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe" /f

Network

N/A

Files

memory/2572-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

memory/2572-2-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2572-4-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2572-5-0x0000000000400000-0x0000000002DBC000-memory.dmp

memory/2572-6-0x0000000000400000-0x0000000002DBC000-memory.dmp