Malware Analysis Report

2024-11-30 22:17

Sample ID 241121-ntewrs1eqd
Target 2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe
SHA256 2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf
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: 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

2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf

Threat Level: Known bad

The file 2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe was found to be: Known bad.

Malicious Activity Summary

gcleaner onlylogger discovery loader

Gcleaner family

Onlylogger family

GCleaner

OnlyLogger

OnlyLogger payload

Checks computer location settings

Deletes itself

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-21 11:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-21 11:41

Reported

2024-11-21 11:43

Platform

win7-20240903-en

Max time kernel

73s

Max time network

21s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.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

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.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\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.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\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe

"C:\Users\Admin\AppData\Local\Temp\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe" /f

Network

N/A

Files

memory/2648-1-0x0000000000990000-0x0000000000A90000-memory.dmp

memory/2648-2-0x0000000000220000-0x0000000000269000-memory.dmp

memory/2648-3-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2648-4-0x0000000000400000-0x000000000089E000-memory.dmp

memory/2648-6-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2648-5-0x0000000000220000-0x0000000000269000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-21 11:41

Reported

2024-11-21 11:43

Platform

win10v2004-20241007-en

Max time kernel

2s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.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\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.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

Processes

C:\Users\Admin\AppData\Local\Temp\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe

"C:\Users\Admin\AppData\Local\Temp\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 2016 -ip 2016

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 744

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2016 -ip 2016

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 784

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2016 -ip 2016

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 792

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 2016 -ip 2016

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 936

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 2016 -ip 2016

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 936

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 2016 -ip 2016

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 776

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2016 -ip 2016

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 980

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "2faa2fb291f71756412f6d3a7b64d1d11d93b18b66aa1d7007960361e97848bf.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 25.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.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
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

memory/2016-2-0x0000000000D20000-0x0000000000D69000-memory.dmp

memory/2016-1-0x0000000000A20000-0x0000000000B20000-memory.dmp

memory/2016-3-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2016-6-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2016-5-0x0000000000D20000-0x0000000000D69000-memory.dmp

memory/2016-4-0x0000000000400000-0x000000000089E000-memory.dmp