Malware Analysis Report

2025-01-02 09:40

Sample ID 240902-sb6nzssgkk
Target inte.exe
SHA256 17755d80106436dddce6838115080879d71e018056ed2f72470ff8ddb7a48739
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

17755d80106436dddce6838115080879d71e018056ed2f72470ff8ddb7a48739

Threat Level: Known bad

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

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Deletes itself

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Kills process with taskkill

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-02 14:58

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-02 14:58

Reported

2024-09-02 15:00

Platform

win7-20240705-en

Max time kernel

24s

Max time network

24s

Command Line

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

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

C:\Windows\SysWOW64\cmd.exe

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

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "inte.exe" /f

Network

Country Destination Domain Proto
RU 80.66.75.114:80 80.66.75.114 tcp

Files

memory/2160-1-0x0000000000890000-0x0000000000990000-memory.dmp

memory/2160-2-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2160-3-0x0000000000400000-0x000000000044B000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\GE5J41S2\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/2160-9-0x0000000000890000-0x0000000000990000-memory.dmp

memory/2160-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2160-12-0x0000000000400000-0x000000000044B000-memory.dmp

memory/2160-22-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2160-21-0x0000000000400000-0x000000000044B000-memory.dmp

memory/2160-23-0x0000000000890000-0x0000000000990000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-02 14:58

Reported

2024-09-02 15:00

Platform

win10v2004-20240802-en

Max time kernel

95s

Max time network

122s

Command Line

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

Signatures

GCleaner

loader gcleaner

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\inte.exe N/A

Enumerates physical storage devices

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\inte.exe

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\inte.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4476 wrote to memory of 3460 N/A C:\Users\Admin\AppData\Local\Temp\inte.exe C:\Windows\SysWOW64\cmd.exe
PID 4476 wrote to memory of 3460 N/A C:\Users\Admin\AppData\Local\Temp\inte.exe C:\Windows\SysWOW64\cmd.exe
PID 4476 wrote to memory of 3460 N/A C:\Users\Admin\AppData\Local\Temp\inte.exe C:\Windows\SysWOW64\cmd.exe
PID 3460 wrote to memory of 3276 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 3460 wrote to memory of 3276 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 3460 wrote to memory of 3276 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe

Processes

C:\Users\Admin\AppData\Local\Temp\inte.exe

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

C:\Windows\SysWOW64\cmd.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4476 -ip 4476

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "inte.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4476 -s 1468

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.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 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 1.202.248.87.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/4476-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

memory/4476-2-0x00000000007E0000-0x000000000080D000-memory.dmp

memory/4476-3-0x0000000000400000-0x000000000042F000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\LI43KEDR\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/4476-9-0x00000000005E0000-0x00000000006E0000-memory.dmp

memory/4476-10-0x0000000000400000-0x000000000044B000-memory.dmp

memory/4476-12-0x00000000007E0000-0x000000000080D000-memory.dmp

memory/4476-13-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4476-21-0x0000000000400000-0x000000000044B000-memory.dmp

memory/4476-22-0x0000000000400000-0x000000000042F000-memory.dmp