Malware Analysis Report

2025-01-02 09:39

Sample ID 240901-ngkaqazbrg
Target 7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37
SHA256 7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37
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

7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37

Threat Level: Known bad

The file 7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37 was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Checks computer location settings

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Kills process with taskkill

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-01 11:22

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-01 11:22

Reported

2024-09-01 11:24

Platform

win10v2004-20240802-en

Max time kernel

135s

Max time network

104s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe"

Signatures

GCleaner

loader gcleaner

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.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\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.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\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe

"C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4020 -ip 4020

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 740

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4020 -ip 4020

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 748

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4020 -ip 4020

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 748

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4020 -ip 4020

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 812

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4020 -ip 4020

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4020 -ip 4020

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 908

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4020 -ip 4020

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 1072

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4020 -ip 4020

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 1480

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4020 -ip 4020

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 1404

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 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.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

Files

memory/4020-1-0x0000000000750000-0x0000000000850000-memory.dmp

memory/4020-2-0x00000000006C0000-0x00000000006ED000-memory.dmp

memory/4020-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4020-8-0x0000000000750000-0x0000000000850000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\3GJVVK7B\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/4020-11-0x00000000006C0000-0x00000000006ED000-memory.dmp

memory/4020-10-0x0000000000400000-0x00000000005F7000-memory.dmp

memory/4020-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4020-22-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4020-21-0x0000000000400000-0x00000000005F7000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-01 11:22

Reported

2024-09-01 11:24

Platform

win11-20240802-en

Max time kernel

31s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe"

Signatures

GCleaner

loader gcleaner

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\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.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\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe

"C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4352 -ip 4352

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4352 -s 772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4352 -ip 4352

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4352 -s 780

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4352 -ip 4352

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4352 -s 820

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4352 -ip 4352

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4352 -s 844

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4352 -ip 4352

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4352 -s 952

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4352 -ip 4352

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4352 -s 960

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4352 -ip 4352

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4352 -s 1520

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4352 -ip 4352

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4352 -s 1460

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/4352-1-0x00000000007E0000-0x00000000008E0000-memory.dmp

memory/4352-2-0x0000000002440000-0x000000000246D000-memory.dmp

memory/4352-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4352-8-0x00000000007E0000-0x00000000008E0000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FYUCG7L6\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/4352-10-0x0000000002440000-0x000000000246D000-memory.dmp

memory/4352-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4352-11-0x0000000000400000-0x00000000005F7000-memory.dmp

memory/4352-21-0x0000000000400000-0x00000000005F7000-memory.dmp

memory/4352-22-0x0000000000400000-0x000000000042F000-memory.dmp