Malware Analysis Report

2025-01-02 09:31

Sample ID 240511-f3949sad85
Target e60305b3943f20c3445d2f15f68a0842.exe
SHA256 43c29c411bfdfd99d46c8a6b8e1ceb11d92e9b99d8d403b381041eddda1dd9ba
Tags
gcleaner 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

43c29c411bfdfd99d46c8a6b8e1ceb11d92e9b99d8d403b381041eddda1dd9ba

Threat Level: Known bad

The file e60305b3943f20c3445d2f15f68a0842.exe was found to be: Known bad.

Malicious Activity Summary

gcleaner loader

GCleaner

Deletes itself

Checks computer location settings

Program crash

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-11 05:25

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-11 05:25

Reported

2024-05-11 05:27

Platform

win7-20240508-en

Max time kernel

119s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e60305b3943f20c3445d2f15f68a0842.exe"

Signatures

GCleaner

loader gcleaner

Deletes itself

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

Enumerates physical storage devices

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\e60305b3943f20c3445d2f15f68a0842.exe

"C:\Users\Admin\AppData\Local\Temp\e60305b3943f20c3445d2f15f68a0842.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "e60305b3943f20c3445d2f15f68a0842.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\e60305b3943f20c3445d2f15f68a0842.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "e60305b3943f20c3445d2f15f68a0842.exe" /f

Network

Country Destination Domain Proto
DE 185.172.128.90:80 185.172.128.90 tcp

Files

memory/2140-1-0x0000000002610000-0x0000000002710000-memory.dmp

memory/2140-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2140-2-0x00000000002C0000-0x00000000002ED000-memory.dmp

memory/2140-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2140-6-0x0000000002610000-0x0000000002710000-memory.dmp

memory/2140-5-0x0000000000400000-0x000000000257F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-11 05:25

Reported

2024-05-11 05:27

Platform

win10v2004-20240508-en

Max time kernel

92s

Max time network

93s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e60305b3943f20c3445d2f15f68a0842.exe"

Signatures

GCleaner

loader gcleaner

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\e60305b3943f20c3445d2f15f68a0842.exe N/A

Enumerates physical storage devices

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\e60305b3943f20c3445d2f15f68a0842.exe

"C:\Users\Admin\AppData\Local\Temp\e60305b3943f20c3445d2f15f68a0842.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2084 -ip 2084

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2084 -s 740

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2084 -ip 2084

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2084 -s 760

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2084 -ip 2084

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2084 -s 740

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2084 -ip 2084

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2084 -s 832

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2084 -ip 2084

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2084 -s 908

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2084 -ip 2084

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2084 -s 1000

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2084 -ip 2084

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2084 -s 1300

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "e60305b3943f20c3445d2f15f68a0842.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\e60305b3943f20c3445d2f15f68a0842.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "e60305b3943f20c3445d2f15f68a0842.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
BE 2.17.107.104:443 www.bing.com tcp
BE 2.17.107.104:443 www.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 104.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
DE 185.172.128.90:80 185.172.128.90 tcp
US 8.8.8.8:53 90.128.172.185.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 35.15.31.184.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp

Files

memory/2084-1-0x0000000002780000-0x0000000002880000-memory.dmp

memory/2084-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2084-2-0x0000000002700000-0x000000000272D000-memory.dmp

memory/2084-6-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2084-5-0x0000000000400000-0x000000000257F000-memory.dmp