5be0c2df3f2dbca7bfbe77a8eb96abc472bfc6a566aa26cccd8e9937f446dad3

Resubmissions

15-09-2022 12:33

220915-pre97adaf5 10

12-04-2022 16:13

220412-tn3crsgfd6 9

Analysis

max time kernel
152s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20220331-en
submitted
12-04-2022 16:13

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General

Target

autorun.dll
Size

2.8MB
MD5

8dbc3035b9bb7ba4e7cac241038d239a
SHA1

dd803a0e41bdaa2c2d6ee86bb0dfa288da788bce
SHA256

5be0c2df3f2dbca7bfbe77a8eb96abc472bfc6a566aa26cccd8e9937f446dad3
SHA512

db800f2af108c627fe165c96b42c9efc2bbdd13c67c28aa6c7dd8df79df9ca7e4e4a8cd8587fabdeba7c97c85d7a243191409191035ccfe5683d0ca161f3bf54

Score

9^/10

evasion

Malware Config

Signatures

Enumerates VirtualBox registry keys 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 3 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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	rundll32.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-157025953-3125636059-437143553-1000\SOFTWARE\Wine	rundll32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe
4672	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\autorun.dll,#1
1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious behavior: EnumeratesProcesses
PID:4672

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

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Downloads

memory/4672-124-0x00007FFE91180000-0x00007FFE91190000-memory.dmp

Filesize
64KB

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