20586c23808706e7bf6cf24a37fb5c30195bc02d595f92e43b78760bc14d7366

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
24-03-2023 19:13

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General

Target

sample.exe
Size

10.8MB
MD5

8df943c876b75a51eacc41f008834f4e
SHA1

9b4c89ae6bbc175f20b22a225363f6b2cb4142d5
SHA256

20586c23808706e7bf6cf24a37fb5c30195bc02d595f92e43b78760bc14d7366
SHA512

4badeedae553dc1dad172fb9db1425c994693466cc4b2df57d189b4ac4a53828eedc8dd23e0f023570e7ebe7576945e7200205852f885e69fa7a0820d039c56d
SSDEEP

196608:fzQoJOOpzeSHJPQpySE5o4ly7XcF4WaAUNrkh+2aqhK6C5QOsP2:fzQoPpBHxQpmQIF0yh+ZHsO

Score

9^/10

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:

sample.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ sample.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	sample.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:

sample.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	sample.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	sample.exe

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/1416-133-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp	themida
behavioral2/memory/1416-134-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp	themida
behavioral2/memory/1416-135-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp	themida
behavioral2/memory/1416-136-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp	themida
behavioral2/memory/1416-137-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp	themida
behavioral2/memory/1416-138-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp	themida
behavioral2/memory/1416-139-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp	themida
behavioral2/memory/1416-140-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

sample.exe

description ioc process

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

Processes:

sample.exe

pid process

1416 sample.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

sample.exe

pid process

1416 sample.exe
1416 sample.exe

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

pid	process
1416	sample.exe

pid	process
1416	sample.exe
1416	sample.exe

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1416

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1416-133-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp

Filesize
27.4MB

Download
memory/1416-134-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp

Filesize
27.4MB

Download
memory/1416-135-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp

Filesize
27.4MB

Download
memory/1416-136-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp

Filesize
27.4MB

Download
memory/1416-137-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp

Filesize
27.4MB

Download
memory/1416-138-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp

Filesize
27.4MB

Download
memory/1416-139-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp

Filesize
27.4MB

Download
memory/1416-140-0x00007FF7C4A90000-0x00007FF7C65EB000-memory.dmp

Filesize
27.4MB

Download