Malware Analysis Report

2024-10-23 17:09

Sample ID 220319-przntshher
Target bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36
SHA256 bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36
Tags
themida plugx evasion trojan
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

bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36

Threat Level: Known bad

The file bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36 was found to be: Known bad.

Malicious Activity Summary

themida plugx evasion trojan

PlugX

PlugX Rat Payload

Looks for VirtualBox Guest Additions in registry

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Looks for VMWare Tools registry key

Checks BIOS information in registry

Themida packer

Maps connected drives based on registry

Checks whether UAC is enabled

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of AdjustPrivilegeToken

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-03-19 12:34

Signatures

Themida packer

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

Analysis: behavioral1

Detonation Overview

Submitted

2022-03-19 12:34

Reported

2022-03-19 14:58

Platform

win7-20220311-en

Max time kernel

4294178s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe"

Signatures

PlugX

trojan plugx

PlugX Rat Payload

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

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe N/A

Themida packer

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

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe

"C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 maveable.cc udp
US 172.67.134.15:443 maveable.cc tcp

Files

memory/892-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

memory/892-55-0x0000000075A40000-0x0000000075B50000-memory.dmp

memory/892-56-0x0000000077300000-0x0000000077480000-memory.dmp

memory/892-57-0x0000000076D30000-0x0000000076D77000-memory.dmp

memory/892-61-0x0000000000C70000-0x0000000002900000-memory.dmp

memory/892-62-0x0000000074390000-0x0000000074A7E000-memory.dmp

memory/892-63-0x0000000006720000-0x0000000006721000-memory.dmp

memory/892-64-0x000000000BC20000-0x000000000CFEA000-memory.dmp

memory/892-65-0x0000000006D50000-0x0000000008262000-memory.dmp

memory/892-66-0x0000000008260000-0x0000000008878000-memory.dmp

memory/892-67-0x0000000000730000-0x000000000073C000-memory.dmp

memory/892-68-0x0000000011FF0000-0x000000001269C000-memory.dmp

memory/892-69-0x00000000040D0000-0x0000000004136000-memory.dmp

memory/892-70-0x0000000006725000-0x0000000006736000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-03-19 12:34

Reported

2022-03-19 14:58

Platform

win10v2004-en-20220113

Max time kernel

164s

Max time network

170s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe"

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion

Looks for VirtualBox Guest Additions in registry

evasion

Looks for VMWare Tools registry key

evasion

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe N/A

Themida packer

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

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.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\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\System32\svchost.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe N/A
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Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe

"C:\Users\Admin\AppData\Local\Temp\bb0ecdccb3372022bdf71f0d75c76eb7ad8309a40ea1ef424ce6fdc5b71aba36.exe"

C:\Windows\System32\svchost.exe

C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
US 8.8.8.8:53 maveable.cc udp
US 172.67.134.15:443 maveable.cc tcp
US 8.8.8.8:53 repo.maveable.cc udp
US 172.67.134.15:443 repo.maveable.cc tcp

Files

memory/4196-130-0x0000000076820000-0x0000000076910000-memory.dmp

memory/4196-131-0x0000000076820000-0x0000000076910000-memory.dmp

memory/4196-132-0x0000000076820000-0x0000000076910000-memory.dmp

memory/4196-133-0x0000000076820000-0x0000000076910000-memory.dmp

memory/4196-134-0x0000000076820000-0x0000000076910000-memory.dmp

memory/4196-135-0x0000000076820000-0x0000000076910000-memory.dmp

memory/4196-137-0x0000000076820000-0x0000000076910000-memory.dmp

memory/4196-136-0x0000000076820000-0x0000000076910000-memory.dmp

memory/4196-138-0x0000000076EE0000-0x0000000077083000-memory.dmp

memory/4196-142-0x0000000000160000-0x0000000001DF0000-memory.dmp

memory/4196-143-0x0000000074440000-0x0000000074BF0000-memory.dmp

memory/4196-144-0x0000000006AF0000-0x0000000006AF1000-memory.dmp

memory/4196-145-0x00000000102C0000-0x0000000010864000-memory.dmp

memory/4196-146-0x0000000008600000-0x0000000008692000-memory.dmp

memory/408-147-0x000002680A160000-0x000002680A170000-memory.dmp

memory/408-148-0x000002680A390000-0x000002680A3A0000-memory.dmp

memory/408-149-0x000002680A580000-0x000002680A584000-memory.dmp

memory/4196-150-0x0000000006AF3000-0x0000000006AF5000-memory.dmp

memory/4196-151-0x00000000099E0000-0x0000000009A46000-memory.dmp

memory/4196-152-0x0000000006AF5000-0x0000000006AF6000-memory.dmp

memory/4196-153-0x0000000006AF6000-0x0000000006AF7000-memory.dmp

memory/4196-154-0x0000000006AF7000-0x0000000006AF8000-memory.dmp

memory/4196-155-0x0000000009FD0000-0x0000000009FDA000-memory.dmp

memory/4196-156-0x000000000D580000-0x000000000D5AE000-memory.dmp

memory/4196-157-0x000000000D5B0000-0x000000000D5E8000-memory.dmp

memory/4196-158-0x0000000006AF8000-0x0000000006AF9000-memory.dmp

memory/4196-159-0x0000000006AF9000-0x0000000006AFF000-memory.dmp