483aecd72609e2677a9e857b18833a7dbe3b68e132a3da72b8c03daacc637a33

Analysis

max time kernel
148s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
22/07/2026, 15:09

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General

Target
483aecd72609e2677a9e857b18833a7dbe3b68e132a3da72b8c03daacc637a33.dll
Size 2.6MB
Sample260722-sjmk3stwev
SHA256 483aecd72609e2677a9e857b18833a7dbe3b68e132a3da72b8c03daacc637a33
MD5 437c5c186464b773f0a0e0724f39459c
SHA1 45f9db7e8b2ca4f2c8d1696689f0381c6effea91
SHA512 639b0b83de23426a48b207c0cd8c7a75c0050005bb65d4449418c20e753e94a05c53af747875b048421db58f8233f37f06e56b37909a9ae4433de137ebf933c8
SSDEEP 49152:giHiY9XjDwPM2BpIeBsSKgwlQhAt8Qw5vAWH5HxwMTitPy:giF38I7g1E842xHqPy
TLSH
T1A6D533C1FC4E5CEEC3AD4E76A583861B2A784358B63489FE020E53927F55E582331A79
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

defense_evasion discovery themida trojan

Malware Config

Signatures

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

defense_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

Themida packer 2 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/4520-0-0x0000000010000000-0x00000000106CE000-memory.dmp	themida
behavioral2/memory/4520-1-0x0000000010000000-0x00000000106CE000-memory.dmp	themida

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4520	rundll32.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

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

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4520	rundll32.exe
4520	rundll32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4684 wrote to memory of 4520	4684	rundll32.exe	88

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\483aecd72609e2677a9e857b18833a7dbe3b68e132a3da72b8c03daacc637a33.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4684
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\483aecd72609e2677a9e857b18833a7dbe3b68e132a3da72b8c03daacc637a33.dll,#1
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4520

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4520-0-0x0000000010000000-0x00000000106CE000-memory.dmp

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memory/4520-1-0x0000000010000000-0x00000000106CE000-memory.dmp

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