Malware Analysis Report

2025-01-02 09:44

Sample ID 240906-hwh4bashlb
Target 0507db046cc1b16a8b8dee003fd92b68.exe
SHA256 b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee
Tags
gcleaner 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

b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee

Threat Level: Known bad

The file 0507db046cc1b16a8b8dee003fd92b68.exe was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Checks computer location settings

Deletes itself

Enumerates physical storage devices

Program crash

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

2024-09-06 07:05

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-06 07:05

Reported

2024-09-06 07:07

Platform

win10v2004-20240802-en

Max time kernel

125s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0507db046cc1b16a8b8dee003fd92b68.exe"

Signatures

GCleaner

loader gcleaner

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\0507db046cc1b16a8b8dee003fd92b68.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\0507db046cc1b16a8b8dee003fd92b68.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\0507db046cc1b16a8b8dee003fd92b68.exe

"C:\Users\Admin\AppData\Local\Temp\0507db046cc1b16a8b8dee003fd92b68.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4380,i,11251706013556949551,5157034131170452377,262144 --variations-seed-version --mojo-platform-channel-handle=4188 /prefetch:8

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "0507db046cc1b16a8b8dee003fd92b68.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\0507db046cc1b16a8b8dee003fd92b68.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2636 -ip 2636

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "0507db046cc1b16a8b8dee003fd92b68.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 1308

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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.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 97.17.167.52.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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/2636-1-0x0000000000790000-0x0000000000890000-memory.dmp

memory/2636-2-0x0000000002050000-0x000000000207D000-memory.dmp

memory/2636-3-0x0000000000400000-0x000000000042F000-memory.dmp

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

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/2636-9-0x0000000000400000-0x0000000000445000-memory.dmp

memory/2636-10-0x0000000000790000-0x0000000000890000-memory.dmp

memory/2636-12-0x0000000002050000-0x000000000207D000-memory.dmp

memory/2636-13-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2636-21-0x0000000000400000-0x0000000000445000-memory.dmp

memory/2636-22-0x0000000000400000-0x000000000042F000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-06 07:05

Reported

2024-09-06 07:07

Platform

win7-20240903-en

Max time kernel

122s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0507db046cc1b16a8b8dee003fd92b68.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

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\0507db046cc1b16a8b8dee003fd92b68.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\0507db046cc1b16a8b8dee003fd92b68.exe

"C:\Users\Admin\AppData\Local\Temp\0507db046cc1b16a8b8dee003fd92b68.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "0507db046cc1b16a8b8dee003fd92b68.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\0507db046cc1b16a8b8dee003fd92b68.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "0507db046cc1b16a8b8dee003fd92b68.exe" /f

Network

Country Destination Domain Proto
RU 80.66.75.114:80 80.66.75.114 tcp
RU 80.66.75.114:80 80.66.75.114 tcp

Files

memory/2992-1-0x0000000000550000-0x0000000000650000-memory.dmp

memory/2992-3-0x0000000000400000-0x0000000000445000-memory.dmp

memory/2992-2-0x0000000000400000-0x000000000042F000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\NQU8S4LJ\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/2992-9-0x0000000000550000-0x0000000000650000-memory.dmp

memory/2992-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2992-12-0x0000000000400000-0x0000000000445000-memory.dmp

memory/2992-21-0x0000000000400000-0x0000000000445000-memory.dmp

memory/2992-22-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2992-23-0x0000000000550000-0x0000000000650000-memory.dmp