Malware Analysis Report

2024-10-18 23:17

Sample ID 220731-kysfwahbc9
Target 63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af
SHA256 63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af
Tags
loaderbot loader miner persistence
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af

Threat Level: Known bad

The file 63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af was found to be: Known bad.

Malicious Activity Summary

loaderbot loader miner persistence

LoaderBot executable

Loaderbot family

LoaderBot

LoaderBot executable

Drops startup file

Adds Run key to start application

Creates scheduled task(s)

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-07-31 09:00

Signatures

LoaderBot executable

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

Loaderbot family

loaderbot

Analysis: behavioral1

Detonation Overview

Submitted

2022-07-31 09:00

Reported

2022-07-31 12:25

Platform

win7-20220718-en

Max time kernel

152s

Max time network

45s

Command Line

"C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe"

Signatures

LoaderBot

loader miner loaderbot

LoaderBot executable

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

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Webhost.url C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows\CurrentVersion\Run\Webhost = "C:\\Users\\Admin\\AppData\\Roaming\\Windows\\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe" C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows\CurrentVersion\Run\Webhost = "C:\\Users\\Admin\\AppData\\Roaming\\Windows\\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe" C:\Users\Admin\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe N/A

Creates scheduled task(s)

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

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2008 wrote to memory of 1732 N/A C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe C:\Windows\SysWOW64\cmd.exe
PID 2008 wrote to memory of 1732 N/A C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe C:\Windows\SysWOW64\cmd.exe
PID 2008 wrote to memory of 1732 N/A C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe C:\Windows\SysWOW64\cmd.exe
PID 2008 wrote to memory of 1732 N/A C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe C:\Windows\SysWOW64\cmd.exe
PID 1732 wrote to memory of 1944 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 1732 wrote to memory of 1944 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 1732 wrote to memory of 1944 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 1732 wrote to memory of 1944 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 1300 wrote to memory of 2044 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe
PID 1300 wrote to memory of 2044 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe
PID 1300 wrote to memory of 2044 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe
PID 1300 wrote to memory of 2044 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe
PID 2044 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe C:\Windows\SysWOW64\cmd.exe
PID 2044 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe C:\Windows\SysWOW64\cmd.exe
PID 2044 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe C:\Windows\SysWOW64\cmd.exe
PID 2044 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe C:\Windows\SysWOW64\cmd.exe
PID 1728 wrote to memory of 1400 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 1728 wrote to memory of 1400 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 1728 wrote to memory of 1400 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 1728 wrote to memory of 1400 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe

"C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe"

C:\Windows\SysWOW64\cmd.exe

"cmd" /C schtasks /create /tn \System\SecurityServiceUpdate /tr %userprofile%\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe /st 00:00 /du 9999:59 /sc daily /ri 5 /f

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /tn \System\SecurityServiceUpdate /tr C:\Users\Admin\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe /st 00:00 /du 9999:59 /sc daily /ri 5 /f

C:\Windows\system32\taskeng.exe

taskeng.exe {8CA0F427-4EFD-4770-B862-B66A683DDD74} S-1-5-21-4084403625-2215941253-1760665084-1000:LDLTPJLN\Admin:Interactive:[1]

C:\Users\Admin\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe

C:\Users\Admin\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe

C:\Windows\SysWOW64\cmd.exe

"cmd" /C schtasks /create /tn \System\SecurityServiceUpdate /tr %userprofile%\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe /st 00:00 /du 9999:59 /sc daily /ri 5 /f

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /tn \System\SecurityServiceUpdate /tr C:\Users\Admin\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe /st 00:00 /du 9999:59 /sc daily /ri 5 /f

Network

N/A

Files

memory/2008-54-0x0000000000FE0000-0x0000000000FEA000-memory.dmp

memory/1732-55-0x0000000000000000-mapping.dmp

memory/2008-56-0x0000000075C41000-0x0000000075C43000-memory.dmp

memory/1944-57-0x0000000000000000-mapping.dmp

memory/2044-58-0x0000000000000000-mapping.dmp

memory/1728-59-0x0000000000000000-mapping.dmp

memory/1400-61-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-07-31 09:00

Reported

2022-07-31 12:25

Platform

win10v2004-20220721-en

Max time kernel

154s

Max time network

175s

Command Line

"C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe"

Signatures

LoaderBot

loader miner loaderbot

LoaderBot executable

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

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Webhost.url C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Webhost = "C:\\Users\\Admin\\AppData\\Roaming\\Windows\\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe" C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe N/A

Creates scheduled task(s)

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe

"C:\Users\Admin\AppData\Local\Temp\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe"

C:\Windows\SysWOW64\cmd.exe

"cmd" /C schtasks /create /tn \System\SecurityServiceUpdate /tr %userprofile%\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe /st 00:00 /du 9999:59 /sc daily /ri 5 /f

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /tn \System\SecurityServiceUpdate /tr C:\Users\Admin\AppData\Roaming\Windows\63f8e07b61c7e5dd2e5a643c339eae94e39c97da9e6f0551f48a7740ae4051af.exe /st 00:00 /du 9999:59 /sc daily /ri 5 /f

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
US 131.253.33.200:443 tcp
US 131.253.33.200:443 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 97.97.242.52.in-addr.arpa udp

Files

memory/2588-130-0x0000000000B30000-0x0000000000B3A000-memory.dmp

memory/1500-131-0x0000000000000000-mapping.dmp

memory/2588-132-0x0000000005880000-0x00000000058E6000-memory.dmp

memory/4576-133-0x0000000000000000-mapping.dmp