24e8c911a34e784acfeae70252c1c4c27c7d40883eeee9871d97691bcc0f9df7

Analysis

max time kernel
149s
max time network
173s
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/EMP.dll
Size

16.5MB
MD5

152271c4b4ffef688f8afe097989b224
SHA1

df3bb0aa3f2ca3e27092b1ee2b316afa5234586f
SHA256

1a810d11ff37b79a348ceb52fe3a6c5b7aa83682ecff88764a78a92586c2803e
SHA512

33dd3768e24628294239acea1e86d158c049fb5dc937092cbe6abee77afd2c2165bedc070047ad553c01e6fae33409284d2f9a960368f17c92a83457f60a41be
SSDEEP

393216:6Wj4j1GtzkONfyf9Mah58FSz2pARmnfZQpeWeYO7Uy+JEMUv:6WaGtzkONk9huIRmnfZHDjIynB

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\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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3504	3296	WerFault.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\EMPRESS\EMP.dll,#1
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
PID:3296
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 3296 -s 380
  2⤵
  - Program crash
  PID:3504

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 460 -p 3296 -ip 3296
1⤵
PID:4448

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/3296-133-0x0000000013000000-0x0000000014BC0000-memory.dmp

Filesize
27.8MB

Download
memory/3296-134-0x0000000013000000-0x0000000014BC0000-memory.dmp

Filesize
27.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads