10d4f5dcff804de186948afbcd2ed49fd39e6af8da9ea41d7f6d29162de273d5

Analysis

max time kernel
142s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
08/10/2023, 17:07

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General

Target

NEAS.10d4f5dcff804de186948afbcd2ed49fd39e6af8da9ea41d7f6d29162de273d5_JC.dll
Size

5.6MB
MD5

b47bbc48f28a58589793d4ab30e7eeca
SHA1

741f01f1db9ed5717d3fd9cdff7d2d846bf10e26
SHA256

10d4f5dcff804de186948afbcd2ed49fd39e6af8da9ea41d7f6d29162de273d5
SHA512

9b4536278ab3c6c1abeed090464a8a07fd29ae5c621dd093a5d6ef82aec0bef4644e15d05051df416c62141730b4c9f2f654c196b0d12bb9f9c845f301248b41
SSDEEP

98304:lz45zXY6iicwsC869ljE4HxLcMqsse1mGuNBUDTC5Lgl9RIeMSIJ1u4y6C9ipwO9:R49tcLj6vjE4Hx1FsQp+gfRRhIJ9o9oE

Score

9^/10

bootkit evasion persistence trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	rundll32.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	rundll32.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4120	rundll32.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000_Classes\CLSID\{9cc7d970-80e7-3da1-a0c0-dbd716aa}	rundll32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000_Classes\CLSID\{9cc7d970-80e7-3da1-a0c0-dbd716aa}\LocalizedString = 79360fc361b5fa1a0825bc8e	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000_Classes\CLSID\{a04c0187-5773-1bcc-986c-20368356}	rundll32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000_Classes\CLSID\{a04c0187-5773-1bcc-986c-20368356}\InfoTip = fdb2bb0e6fb5ea0a5646589e	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.10d4f5dcff804de186948afbcd2ed49fd39e6af8da9ea41d7f6d29162de273d5_JC.dll,#1
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies registry class
PID:4120

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4120-0-0x0000000010000000-0x0000000010F2A000-memory.dmp

Filesize
15.2MB

Download
memory/4120-1-0x00007FFDA0F30000-0x00007FFDA1125000-memory.dmp

Filesize
2.0MB

Download
memory/4120-5-0x0000000010000000-0x0000000010F2A000-memory.dmp

Filesize
15.2MB

Download
memory/4120-6-0x00007FFDA0F30000-0x00007FFDA1125000-memory.dmp

Filesize
2.0MB

Download
memory/4120-7-0x00007FFDA0F30000-0x00007FFDA1125000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads