Malware Analysis Report

2025-01-02 09:46

Sample ID 240830-hwhgsatamr
Target 4749fcb19cc49a0cd2951f224aced3ba.exe
SHA256 21feed85dcffec9c7a76343729beecd6a53ffe854d972af207edddf154da1814
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

21feed85dcffec9c7a76343729beecd6a53ffe854d972af207edddf154da1814

Threat Level: Known bad

The file 4749fcb19cc49a0cd2951f224aced3ba.exe was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Downloads MZ/PE file

Deletes itself

Loads dropped DLL

Unsigned PE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Program crash

Kills process with taskkill

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-30 07:05

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-30 07:05

Reported

2024-08-30 07:07

Platform

win7-20240729-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4749fcb19cc49a0cd2951f224aced3ba.exe"

Signatures

GCleaner

loader gcleaner

Downloads MZ/PE file

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4749fcb19cc49a0cd2951f224aced3ba.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\4749fcb19cc49a0cd2951f224aced3ba.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\4749fcb19cc49a0cd2951f224aced3ba.exe

"C:\Users\Admin\AppData\Local\Temp\4749fcb19cc49a0cd2951f224aced3ba.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "4749fcb19cc49a0cd2951f224aced3ba.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4749fcb19cc49a0cd2951f224aced3ba.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "4749fcb19cc49a0cd2951f224aced3ba.exe" /f

Network

Country Destination Domain Proto
RU 80.66.75.114:80 80.66.75.114 tcp
RU 80.66.75.114:80 80.66.75.114 tcp

Files

memory/1924-1-0x0000000000550000-0x0000000000650000-memory.dmp

memory/1924-2-0x0000000000220000-0x000000000025C000-memory.dmp

memory/1924-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/1924-8-0x0000000010000000-0x000000001001C000-memory.dmp

memory/1924-12-0x0000000000550000-0x0000000000650000-memory.dmp

memory/1924-14-0x0000000000220000-0x000000000025C000-memory.dmp

memory/1924-15-0x0000000000400000-0x000000000044E000-memory.dmp

memory/1924-16-0x0000000000400000-0x000000000043F000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\Q98GZSGI\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/1924-28-0x0000000000400000-0x000000000044E000-memory.dmp

\Users\Admin\AppData\Local\Temp\kZfj1ShYPH\Y-Cleaner.exe

MD5 a8cf5621811f7fac55cfe8cb3fa6b9f6
SHA1 121356839e8138a03141f5f5856936a85bd2a474
SHA256 614a0362ab87cee48d0935b5bb957d539be1d94c6fdeb3fe42fac4fbe182c10c
SHA512 4479d951435f222ca7306774002f030972c9f1715d6aaf512fca9420dd79cb6d08240f80129f213851773290254be34f0ff63c7b1f4d554a7db5f84b69e84bdd

memory/1924-37-0x0000000000400000-0x000000000044E000-memory.dmp

memory/1924-39-0x0000000000400000-0x000000000043F000-memory.dmp

memory/1924-38-0x0000000000550000-0x0000000000650000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-30 07:05

Reported

2024-08-30 07:07

Platform

win10v2004-20240802-en

Max time kernel

96s

Max time network

136s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4749fcb19cc49a0cd2951f224aced3ba.exe"

Signatures

GCleaner

loader gcleaner

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\4749fcb19cc49a0cd2951f224aced3ba.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4749fcb19cc49a0cd2951f224aced3ba.exe

"C:\Users\Admin\AppData\Local\Temp\4749fcb19cc49a0cd2951f224aced3ba.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1516 -ip 1516

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 440

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1516 -ip 1516

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 520

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 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 37.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/1516-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

memory/1516-2-0x00000000004F0000-0x000000000052C000-memory.dmp

memory/1516-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/1516-4-0x0000000000400000-0x000000000044E000-memory.dmp

memory/1516-5-0x00000000004F0000-0x000000000052C000-memory.dmp