496ab9b124db0910ad3a1527333e69e26e644293acc072c0e3550dac1f273572

Analysis

max time kernel
148s
max time network
126s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
10/08/2026, 08:33

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General

Target
496ab9b124db0910ad3a1527333e69e26e644293acc072c0e3550dac1f273572.dll
Size 3.5MB
Sample260810-kfxb4sfa36
SHA256 496ab9b124db0910ad3a1527333e69e26e644293acc072c0e3550dac1f273572
MD5 c8c20633c52c14a58c62a181bb8bb43c
SHA1 c942319c7624e4e50acc071f9839bc1b08df6e33
SHA512 2081f39546632b6f2336ebba45f6b82b2ac9ffd93c14b0c6e563dea5055daa297f48815eee4920bda9bf8480f918fa8778d8b4103982436e133f180449425166
SSDEEP 98304:0jzhvrsiDZS1W1xsx5HTGjEtaLa7l6W8pM:wVIiMcxsxpGjEta6EXC
TLSH
T137F512C21A43D69ADC2D1870D007EEDD93BBAD3AD61B081938CF73560AABD45453F92B
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 6 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/2608-0-0x0000000010000000-0x00000000108A9000-memory.dmp	themida
behavioral2/memory/2608-2-0x0000000010000000-0x00000000108A9000-memory.dmp	themida
behavioral2/memory/2608-4-0x0000000010000000-0x00000000108A9000-memory.dmp	themida
behavioral2/memory/2608-1-0x0000000010000000-0x00000000108A9000-memory.dmp	themida
behavioral2/memory/2608-3-0x0000000010000000-0x00000000108A9000-memory.dmp	themida
behavioral2/memory/2608-5-0x0000000010000000-0x00000000108A9000-memory.dmp	themida

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

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2608	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1200	2608	WerFault.exe	87

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
2608	rundll32.exe
2608	rundll32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 3676 wrote to memory of 2608	3676	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\496ab9b124db0910ad3a1527333e69e26e644293acc072c0e3550dac1f273572.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3676
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\496ab9b124db0910ad3a1527333e69e26e644293acc072c0e3550dac1f273572.dll,#1
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Checks whether UAC is enabled
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2608
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2608 -s 664
    3⤵
    - Program crash
    PID:1200

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2608 -ip 2608
1⤵
PID:4912

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/2608-0-0x0000000010000000-0x00000000108A9000-memory.dmp

Download

memory/2608-2-0x0000000010000000-0x00000000108A9000-memory.dmp

Download

memory/2608-4-0x0000000010000000-0x00000000108A9000-memory.dmp

Download

memory/2608-1-0x0000000010000000-0x00000000108A9000-memory.dmp

Download

memory/2608-3-0x0000000010000000-0x00000000108A9000-memory.dmp

Download

memory/2608-5-0x0000000010000000-0x00000000108A9000-memory.dmp

Download