Malware Analysis Report

2025-01-02 09:32

Sample ID 240509-3bvxlaga86
Target a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d
SHA256 a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d
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

a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d

Threat Level: Known bad

The file a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d was found to be: Known bad.

Malicious Activity Summary

gcleaner loader

GCleaner

Program crash

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Kills process with taskkill

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-09 23:20

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-09 23:20

Reported

2024-05-09 23:25

Platform

win7-20240220-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d.exe"

Signatures

GCleaner

loader gcleaner

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\a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d.exe

"C:\Users\Admin\AppData\Local\Temp\a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d.exe" /f

Network

Country Destination Domain Proto
DE 185.172.128.90:80 185.172.128.90 tcp

Files

memory/2040-1-0x0000000000400000-0x0000000002B05000-memory.dmp

memory/2040-3-0x0000000000400000-0x0000000002B05000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-09 23:20

Reported

2024-05-09 23:25

Platform

win10-20240404-en

Max time kernel

196s

Max time network

256s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d.exe"

Signatures

GCleaner

loader gcleaner

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\a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d.exe

"C:\Users\Admin\AppData\Local\Temp\a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3152 -s 768

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3152 -s 812

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3152 -s 880

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3152 -s 856

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3152 -s 972

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3152 -s 1116

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3152 -s 1180

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3152 -s 1268

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "a74d42c97d16e462aeb764d54f331c6e8c2df4fc1808b49e1ecf9853c46a625d.exe" /f

Network

Country Destination Domain Proto
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 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.0.8.0.8.0.8.0.ip6.arpa udp
US 8.8.8.8:53 84.65.42.20.in-addr.arpa udp
US 8.8.8.8:53 107.211.222.173.in-addr.arpa udp

Files

memory/3152-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3152-2-0x0000000002E50000-0x0000000002E7D000-memory.dmp

memory/3152-1-0x0000000002C10000-0x0000000002D10000-memory.dmp

memory/3152-6-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3152-5-0x0000000000400000-0x0000000002B05000-memory.dmp