Malware Analysis Report

2025-01-02 09:39

Sample ID 240831-paktcasdlm
Target f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe
SHA256 f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe
Tags
gcleaner 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

f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe

Threat Level: Known bad

The file f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Downloads MZ/PE file

Checks computer location settings

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Suspicious use of AdjustPrivilegeToken

Kills process with taskkill

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-31 12:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-31 12:07

Reported

2024-08-31 12:10

Platform

win10v2004-20240802-en

Max time kernel

134s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.exe"

Signatures

GCleaner

loader gcleaner

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.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\f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.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\f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.exe

"C:\Users\Admin\AppData\Local\Temp\f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4324 -ip 4324

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 456

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4324 -ip 4324

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4324 -ip 4324

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 784

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4324 -ip 4324

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4324 -ip 4324

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 856

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4324 -ip 4324

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 928

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4324 -ip 4324

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 1004

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4324 -ip 4324

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 1044

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4324 -ip 4324

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 1568

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 4324 -ip 4324

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 1536

Network

Country Destination Domain Proto
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.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 65.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/4324-2-0x0000000002200000-0x000000000223C000-memory.dmp

memory/4324-1-0x0000000000850000-0x0000000000950000-memory.dmp

memory/4324-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/4324-8-0x0000000010000000-0x000000001001C000-memory.dmp

memory/4324-13-0x0000000000850000-0x0000000000950000-memory.dmp

memory/4324-16-0x0000000002200000-0x000000000223C000-memory.dmp

memory/4324-15-0x0000000000400000-0x00000000005F7000-memory.dmp

memory/4324-17-0x0000000000400000-0x000000000043F000-memory.dmp

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

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/4324-36-0x0000000000400000-0x000000000043F000-memory.dmp

memory/4324-35-0x0000000000400000-0x00000000005F7000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-31 12:07

Reported

2024-08-31 12:10

Platform

win11-20240802-en

Max time kernel

67s

Max time network

73s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.exe"

Signatures

GCleaner

loader gcleaner

Downloads MZ/PE file

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\f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.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\f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.exe

"C:\Users\Admin\AppData\Local\Temp\f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 764 -ip 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 476

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 764 -ip 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 796

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 764 -ip 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 796

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 764 -ip 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 852

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 764 -ip 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 840

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 764 -ip 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 764 -ip 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 980

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 764 -ip 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 980

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 764 -ip 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 1772

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 764 -ip 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 488

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "f615934fe70dc48b8ea23704a7f57454cc282cb74d4b30f8ae452412903f10fe.exe" /f

Network

Country Destination Domain Proto
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

Files

memory/764-1-0x0000000000700000-0x0000000000800000-memory.dmp

memory/764-2-0x0000000002300000-0x000000000233C000-memory.dmp

memory/764-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/764-8-0x0000000010000000-0x000000001001C000-memory.dmp

memory/764-13-0x0000000000700000-0x0000000000800000-memory.dmp

memory/764-15-0x0000000002300000-0x000000000233C000-memory.dmp

memory/764-17-0x0000000000400000-0x000000000043F000-memory.dmp

memory/764-16-0x0000000000400000-0x00000000005F7000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\ZQ9FC15F\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/764-29-0x0000000000400000-0x00000000005F7000-memory.dmp

memory/764-36-0x0000000000400000-0x000000000043F000-memory.dmp

memory/764-35-0x0000000000400000-0x00000000005F7000-memory.dmp