Malware Analysis Report

2024-12-08 02:21

Sample ID 241123-e29xfavjgr
Target a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.exe
SHA256 a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66
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

a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66

Threat Level: Known bad

The file a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.exe was found to be: Known bad.

Malicious Activity Summary

gcleaner onlylogger discovery loader

Onlylogger family

OnlyLogger

GCleaner

Gcleaner family

OnlyLogger payload

Deletes itself

Checks computer location settings

Program crash

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Kills process with taskkill

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-23 04:27

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-23 04:27

Reported

2024-11-23 04:29

Platform

win7-20241010-en

Max time kernel

14s

Max time network

18s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.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:\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\a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.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\a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.exe

"C:\Users\Admin\AppData\Local\Temp\a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.exe" /f

Network

N/A

Files

memory/1048-1-0x0000000000980000-0x0000000000A80000-memory.dmp

memory/1048-2-0x0000000000220000-0x0000000000269000-memory.dmp

memory/1048-3-0x0000000000400000-0x000000000044C000-memory.dmp

memory/1048-6-0x0000000000400000-0x000000000044C000-memory.dmp

memory/1048-5-0x0000000000220000-0x0000000000269000-memory.dmp

memory/1048-4-0x0000000000400000-0x000000000089C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-23 04:27

Reported

2024-11-23 04:29

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.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\a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.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\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\a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.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\a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.exe

"C:\Users\Admin\AppData\Local\Temp\a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4068 -ip 4068

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4068 -s 724

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4068 -ip 4068

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4068 -s 784

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4068 -ip 4068

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4068 -s 880

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4068 -ip 4068

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4068 -s 784

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4068 -ip 4068

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4068 -s 784

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4068 -ip 4068

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4068 -s 968

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4068 -ip 4068

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4068 -s 880

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "a75e90dafe1c1654c511fa5d01f5092a1bb3880b7b210689a910035425918f66.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.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 53.210.109.20.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 81.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/4068-1-0x0000000000BF0000-0x0000000000CF0000-memory.dmp

memory/4068-2-0x0000000000970000-0x00000000009B9000-memory.dmp

memory/4068-3-0x0000000000400000-0x000000000044C000-memory.dmp

memory/4068-4-0x0000000000400000-0x000000000089C000-memory.dmp

memory/4068-6-0x0000000000400000-0x000000000044C000-memory.dmp

memory/4068-5-0x0000000000970000-0x00000000009B9000-memory.dmp