ac486401b12a9edf2153035147577adeac73db79375625f13f4c39f9422a7166

Analysis

max time kernel
120s
max time network
128s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
13/10/2023, 02:15

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General

Target

ac486401b12a9edf2153035147577adeac73db79375625f13f4c39f9422a7166.dll
Size

4.3MB
MD5

ebe933ef7cfd469c32ae9645ea2de327
SHA1

f72c79bfa7abba76afc8eecf72c42fafdd9f050f
SHA256

ac486401b12a9edf2153035147577adeac73db79375625f13f4c39f9422a7166
SHA512

68d50731f7920ba99f98eaa1c682198b5aa55ce8a7bb5cc3532adee755c82c233f6a04f894e9187daa3a9b094d0a007f615a8fb98d76e0051225245ee0883e71
SSDEEP

98304:PfhMoQk11rKLeOWOSOeytPnHjDD3d0CHYzxZjgImUZ/Cqw1Xp1WT6Zy7mbPqkSk:HWZP9/eytPHT3Mnjg3kq9ZxbPAk

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\SystemBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	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
2972	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ac486401b12a9edf2153035147577adeac73db79375625f13f4c39f9422a7166.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
PID:2972

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/2972-0-0x0000000180000000-0x0000000180B73000-memory.dmp

Filesize
11.4MB

Download
memory/2972-1-0x0000000180000000-0x0000000180B73000-memory.dmp

Filesize
11.4MB

Download
memory/2972-2-0x0000000180000000-0x0000000180B73000-memory.dmp

Filesize
11.4MB

Download
memory/2972-3-0x0000000180000000-0x0000000180B73000-memory.dmp

Filesize
11.4MB

Download
memory/2972-4-0x0000000076DE0000-0x0000000076F89000-memory.dmp

Filesize
1.7MB

Download
memory/2972-6-0x0000000180000000-0x0000000180B73000-memory.dmp

Filesize
11.4MB

Download
memory/2972-7-0x0000000180000000-0x0000000180B73000-memory.dmp

Filesize
11.4MB

Download
memory/2972-8-0x0000000180000000-0x0000000180B73000-memory.dmp

Filesize
11.4MB

Download
memory/2972-9-0x0000000076DE0000-0x0000000076F89000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads