Malware Analysis Report

2024-11-13 14:21

Sample ID 240617-ym1j1awdjm
Target SaturnxExternal.exe
SHA256 ce02a8c4fed7aefb3da421a2eaffd13fe92495d8701f8016b7cbe946d380b493
Tags
agenttesla evasion keylogger spyware stealer trojan
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

ce02a8c4fed7aefb3da421a2eaffd13fe92495d8701f8016b7cbe946d380b493

Threat Level: Known bad

The file SaturnxExternal.exe was found to be: Known bad.

Malicious Activity Summary

agenttesla evasion keylogger spyware stealer trojan

AgentTesla

AgentTesla payload

Looks for VirtualBox Guest Additions in registry

Looks for VMWare Tools registry key

Checks BIOS information in registry

Maps connected drives based on registry

Unsigned PE

Enumerates system info in registry

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-17 19:54

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-17 19:54

Reported

2024-06-17 19:57

Platform

win7-20240419-en

Max time kernel

121s

Max time network

122s

Command Line

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

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

AgentTesla payload

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

Looks for VirtualBox Guest Additions in registry

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A

Looks for VMWare Tools registry key

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2396 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe C:\Windows\system32\WerFault.exe
PID 2396 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe C:\Windows\system32\WerFault.exe
PID 2396 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe

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

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2396 -s 968

Network

N/A

Files

memory/2396-0-0x000007FEF55F3000-0x000007FEF55F4000-memory.dmp

memory/2396-1-0x000000013F2B0000-0x000000013FA56000-memory.dmp

memory/2396-2-0x000007FEF55F0000-0x000007FEF5FDC000-memory.dmp

memory/2396-3-0x000000001C480000-0x000000001C856000-memory.dmp

memory/2396-4-0x000000001E200000-0x000000001E414000-memory.dmp

memory/2396-5-0x000007FEF55F3000-0x000007FEF55F4000-memory.dmp

memory/2396-6-0x000007FEF55F0000-0x000007FEF5FDC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-17 19:54

Reported

2024-06-17 19:57

Platform

win10v2004-20240611-en

Max time kernel

102s

Max time network

123s

Command Line

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

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

AgentTesla payload

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

Looks for VirtualBox Guest Additions in registry

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A

Looks for VMWare Tools registry key

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Users\Admin\AppData\Local\Temp\SaturnxExternal.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 keyauth.win udp
US 172.67.72.57:443 keyauth.win tcp
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 8.8.8.8:53 57.72.67.172.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 20.189.173.13:443 tcp
US 8.8.8.8:53 7.6.57.23.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 65.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

memory/1716-0-0x00007FFB18043000-0x00007FFB18045000-memory.dmp

memory/1716-1-0x000001AFB9DB0000-0x000001AFBA556000-memory.dmp

memory/1716-2-0x00007FFB18040000-0x00007FFB18B01000-memory.dmp

memory/1716-3-0x000001AFD4CB0000-0x000001AFD5086000-memory.dmp

memory/1716-4-0x000001AFBC130000-0x000001AFBC142000-memory.dmp

memory/1716-5-0x000001AFD5090000-0x000001AFD52A4000-memory.dmp

memory/1716-6-0x00007FFB18040000-0x00007FFB18B01000-memory.dmp

memory/1716-7-0x000001AFDA2A0000-0x000001AFDA352000-memory.dmp

memory/1716-8-0x000001AFDA3A0000-0x000001AFDA3C2000-memory.dmp

memory/1716-10-0x000001AFDA3D0000-0x000001AFDA40C000-memory.dmp

memory/1716-11-0x00007FFB18043000-0x00007FFB18045000-memory.dmp

memory/1716-12-0x00007FFB18040000-0x00007FFB18B01000-memory.dmp

memory/1716-13-0x00007FFB18040000-0x00007FFB18B01000-memory.dmp