67d193493ae331bfeec5924058e74e4e9b2a6c50cff7b7b46b2b40b67e52015a

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 16:51

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General

Target

67d193493ae331bfeec5924058e74e4e9b2a6c50cff7b7b46b2b40b67e52015a.dll
Size

2.8MB
MD5

c700c8b1afa60ef0076fea819805a382
SHA1

4006e4e686fbe9e57401925e252b981e5303506c
SHA256

67d193493ae331bfeec5924058e74e4e9b2a6c50cff7b7b46b2b40b67e52015a
SHA512

67293cc96f0fe03c211bc8dd009023fb0bf079b53888eace944d576fe523894e9ea80dddeac2b6cec1a098e001fce6bdf81d247af4d16476353bb51656c7b670
SSDEEP

49152:uZmp6X09Ht+USUU5nw9hcG9qY0EQSvFxgkRD+N1Yq21u8iVh//xsIyBdX3WSH:j6XUt+UvwWhIYmkxgAuS1ib3CbG6

Score

9^/10

discovery evasion themida 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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ rundll32.exe
Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

4 4848 rundll32.exe
11 4848 rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	rundll32.exe

flow	pid	process
4	4848	rundll32.exe
11	4848	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

Processes:

rundll32.exe

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 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/4848-0-0x0000000074100000-0x0000000074A07000-memory.dmp	themida
behavioral2/memory/4848-2-0x0000000074100000-0x0000000074A07000-memory.dmp	themida
behavioral2/memory/4848-3-0x0000000074100000-0x0000000074A07000-memory.dmp	themida
behavioral2/memory/4848-4-0x0000000074100000-0x0000000074A07000-memory.dmp	themida
behavioral2/memory/4848-7-0x0000000074100000-0x0000000074A07000-memory.dmp	themida
behavioral2/memory/4848-8-0x0000000074100000-0x0000000074A07000-memory.dmp	themida
behavioral2/memory/4848-6-0x0000000074100000-0x0000000074A07000-memory.dmp	themida
behavioral2/memory/4848-5-0x0000000074100000-0x0000000074A07000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

rundll32.exe

pid process

4848 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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

4848 rundll32.exe
4848 rundll32.exe

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

pid	process
4848	rundll32.exe

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

pid	process
4848	rundll32.exe
4848	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4616 wrote to memory of 4848	4616	rundll32.exe	rundll32.exe
PID 4616 wrote to memory of 4848	4616	rundll32.exe	rundll32.exe
PID 4616 wrote to memory of 4848	4616	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\67d193493ae331bfeec5924058e74e4e9b2a6c50cff7b7b46b2b40b67e52015a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4616
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\67d193493ae331bfeec5924058e74e4e9b2a6c50cff7b7b46b2b40b67e52015a.dll,#1
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Blocklisted process makes network request
  - Checks BIOS information in registry
  - Checks whether UAC is enabled
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4848

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

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Downloads

memory/4848-0-0x0000000074100000-0x0000000074A07000-memory.dmp

Filesize
9.0MB

Download
memory/4848-1-0x0000000076FA4000-0x0000000076FA6000-memory.dmp

Filesize
8KB

Download
memory/4848-2-0x0000000074100000-0x0000000074A07000-memory.dmp

Filesize
9.0MB

Download
memory/4848-3-0x0000000074100000-0x0000000074A07000-memory.dmp

Filesize
9.0MB

Download
memory/4848-4-0x0000000074100000-0x0000000074A07000-memory.dmp

Filesize
9.0MB

Download
memory/4848-7-0x0000000074100000-0x0000000074A07000-memory.dmp

Filesize
9.0MB

Download
memory/4848-8-0x0000000074100000-0x0000000074A07000-memory.dmp

Filesize
9.0MB

Download
memory/4848-6-0x0000000074100000-0x0000000074A07000-memory.dmp

Filesize
9.0MB

Download
memory/4848-5-0x0000000074100000-0x0000000074A07000-memory.dmp

Filesize
9.0MB

Download