Malware Analysis Report

2025-01-02 09:45

Sample ID 240905-2sqhrssgjj
Target d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0
SHA256 d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0
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

d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0

Threat Level: Known bad

The file d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0 was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Deletes itself

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-05 22:50

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-05 22:50

Reported

2024-09-05 22:55

Platform

win7-20240708-en

Max time kernel

122s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0.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:\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\d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0.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\d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0.exe

"C:\Users\Admin\AppData\Local\Temp\d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0.exe" /f

Network

Country Destination Domain Proto
RU 80.66.75.114:80 80.66.75.114 tcp

Files

memory/1700-1-0x00000000004C0000-0x00000000005C0000-memory.dmp

memory/1700-2-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1700-3-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1700-8-0x00000000004C0000-0x00000000005C0000-memory.dmp

memory/1700-9-0x0000000000400000-0x000000000042F000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\39GEHZPO\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/1700-11-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1700-23-0x00000000004C0000-0x00000000005C0000-memory.dmp

memory/1700-22-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1700-21-0x0000000000400000-0x000000000044B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-05 22:50

Reported

2024-09-05 22:56

Platform

win10-20240404-en

Max time kernel

196s

Max time network

257s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0.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:\Users\Admin\AppData\Local\Temp\d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0.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\d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0.exe

"C:\Users\Admin\AppData\Local\Temp\d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "d567be5711b1b8df25432a6d4dee4826da4b3ef3aa8b610cb486bf4640eb4ea0.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
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 31.73.42.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/1104-2-0x00000000005A0000-0x00000000005CD000-memory.dmp

memory/1104-1-0x0000000000620000-0x0000000000720000-memory.dmp

memory/1104-3-0x0000000000400000-0x000000000042F000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VSH5XF98\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/1104-9-0x0000000000620000-0x0000000000720000-memory.dmp

memory/1104-11-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1104-12-0x00000000005A0000-0x00000000005CD000-memory.dmp

memory/1104-13-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1104-22-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1104-21-0x0000000000400000-0x000000000044B000-memory.dmp