a761508511850cd6e28bce353a5a1f02a1a739b36a3744dcf95b4082f76b2cd3

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 03:31

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
PCICL32.dll
Size 4.3MB
Sample250322-d3csnaxtbs
SHA256 666fe72e982876e732736b410cd0766a0c713293e38424f94f472486876e75a9
MD5 6a8b46d540d96a991cfe141bd60b3def
SHA1 6c8ced9543300fe447c1dd2a087bd2fa06e36b5a
SHA512 cd64f1557e3247bfe290b24ae61890dd5265ccdc1e7a9baa493eb32c75c80fbf7fdb118803b86b2b57151df4f96c28be4b1663adf2b6d1271dfbe36899fd164e
SSDEEP 98304:UbnoAxfwBBnO2Yriq6QtwKPXiJSHe/EXhGGqaa8hlFCS:Ub/xfwBU2wBhPiw+cXhG3aau/V
MD5 SHA1 SHA512 SSDEEP

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 7 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral5/memory/1228-1-0x0000000011000000-0x0000000011B59000-memory.dmp	themida
behavioral5/memory/1228-2-0x0000000011000000-0x0000000011B59000-memory.dmp	themida
behavioral5/memory/1228-3-0x0000000011000000-0x0000000011B59000-memory.dmp	themida
behavioral5/memory/1228-5-0x0000000011000000-0x0000000011B59000-memory.dmp	themida
behavioral5/memory/1228-6-0x0000000011000000-0x0000000011B59000-memory.dmp	themida
behavioral5/memory/1228-8-0x0000000011000000-0x0000000011B59000-memory.dmp	themida
behavioral5/memory/1228-7-0x0000000011000000-0x0000000011B59000-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
1228	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 1 IoCs

pid	Process
1228	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 1228	2268	rundll32.exe	30
PID 2268 wrote to memory of 1228	2268	rundll32.exe	30
PID 2268 wrote to memory of 1228	2268	rundll32.exe	30
PID 2268 wrote to memory of 1228	2268	rundll32.exe	30
PID 2268 wrote to memory of 1228	2268	rundll32.exe	30
PID 2268 wrote to memory of 1228	2268	rundll32.exe	30
PID 2268 wrote to memory of 1228	2268	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\PCICL32.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\PCICL32.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:1228

Network

MITRE ATT&CK Enterprise v15

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1228-0-0x0000000011000000-0x0000000011B59000-memory.dmp

Download

memory/1228-1-0x0000000011000000-0x0000000011B59000-memory.dmp

Download

memory/1228-2-0x0000000011000000-0x0000000011B59000-memory.dmp

Download

memory/1228-4-0x0000000077DD0000-0x0000000077DD2000-memory.dmp

Download

memory/1228-3-0x0000000011000000-0x0000000011B59000-memory.dmp

Download

memory/1228-5-0x0000000011000000-0x0000000011B59000-memory.dmp

Download

memory/1228-6-0x0000000011000000-0x0000000011B59000-memory.dmp

Download

memory/1228-8-0x0000000011000000-0x0000000011B59000-memory.dmp

Download

memory/1228-7-0x0000000011000000-0x0000000011B59000-memory.dmp

Download