24e8c911a34e784acfeae70252c1c4c27c7d40883eeee9871d97691bcc0f9df7

Analysis

max time kernel
87s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
18-05-2023 13:23

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General

Target

EMPRESS/amd_ags_x64.dll
Size

41KB
MD5

9f4fa3c3a49497efb0b6737481fa2358
SHA1

997f2708d94718ed7a94e7cb0acefc8faf2154a5
SHA256

0cb9ee2d5bea42b2cb56a15c2763e20e77436107b13f187c8c7dabd27ee45f8e
SHA512

d373b10e1df2aff28d484a0d75bf6366de9f4061b848eb07acf1383c1d2cf7bf4c72a5891b87525ddfbcaad2bc74b97fcbf977f7289dec2dcb219398917b9462
SSDEEP

768:gUbBwQVwW2Wqn4p5hjufZbVa/FECPdAqTzUVGIM/o/:guYW2gp5hEoEMAqTgVGo

Score

9^/10

evasion 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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2112	4752	WerFault.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\EMPRESS\amd_ags_x64.dll,#1
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
PID:4752
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 4752 -s 384
  2⤵
  - Program crash
  PID:2112

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 480 -p 4752 -ip 4752
1⤵
PID:4204

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

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Downloads

memory/4752-133-0x0000000013000000-0x0000000014BC0000-memory.dmp

Filesize
27.8MB

Download
memory/4752-134-0x0000000013000000-0x0000000014BC0000-memory.dmp

Filesize
27.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads