Malware Analysis Report

2025-01-02 09:44

Sample ID 240905-2svsgstbra
Target d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7
SHA256 d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7
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

d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7

Threat Level: Known bad

The file d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7 was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Deletes itself

Enumerates physical storage devices

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-05 22:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-05 22:51

Reported

2024-09-05 22:56

Platform

win7-20240903-en

Max time kernel

240s

Max time network

246s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7.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\d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7.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\d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7.exe

"C:\Users\Admin\AppData\Local\Temp\d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7.exe" /f

Network

Country Destination Domain Proto
RU 80.66.75.114:80 80.66.75.114 tcp

Files

memory/2248-2-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2248-1-0x00000000007D0000-0x00000000008D0000-memory.dmp

memory/2248-3-0x0000000000400000-0x00000000005FE000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\NQU8S4LJ\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/2248-9-0x00000000007D0000-0x00000000008D0000-memory.dmp

memory/2248-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2248-11-0x0000000000400000-0x00000000005FE000-memory.dmp

memory/2248-23-0x00000000007D0000-0x00000000008D0000-memory.dmp

memory/2248-22-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2248-21-0x0000000000400000-0x00000000005FE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-05 22:51

Reported

2024-09-05 22:56

Platform

win10-20240611-en

Max time kernel

190s

Max time network

299s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7.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\d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7.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\d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7.exe

"C:\Users\Admin\AppData\Local\Temp\d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1592 -s 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1592 -s 796

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1592 -s 856

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1592 -s 948

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1592 -s 992

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1592 -s 1116

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1592 -s 1132

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1592 -s 1272

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "d61ca384412ecc86e5591e7d338129e92ebd0e46a055d098910a05b0e0855fb7.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 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 31.73.42.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/1592-2-0x0000000002200000-0x000000000222D000-memory.dmp

memory/1592-1-0x0000000000650000-0x0000000000750000-memory.dmp

memory/1592-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1592-8-0x0000000000650000-0x0000000000750000-memory.dmp

memory/1592-9-0x0000000000400000-0x00000000005FE000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\ZVQ9VIUB\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/1592-11-0x0000000002200000-0x000000000222D000-memory.dmp

memory/1592-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1592-22-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1592-21-0x0000000000400000-0x00000000005FE000-memory.dmp