72677ad5fac8a1e593ccefdbba6e85734465132b36c39b0d9890b50a4325b16d

Analysis

max time kernel
31s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
17-03-2023 20:37

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General

Target

alocal.exe
Size

2.0MB
MD5

c0ac0367a40430af221b8c03417c2a73
SHA1

7d883b5094f8dd9c4b5cb96910d21aa5eba49bc5
SHA256

4c01ded1e8e7171e860ebe7b2bb949a2bcdd9b7aad7e5905a8f2a393670f20ec
SHA512

0bc0a45b6f05042dc954c507350e14f811f973aab3b170141e9349a25a71b4699f2dd41db8175107d4e5938158b5712c9971654e6d3d174853b65b92e7c95955
SSDEEP

49152:1gQsyP4JX/sdwSQHjnpMRGbaMfJTTVVXIMSW5lnnRoe:1WJX/cwfDpUGbzdTVVYzORoe

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:

alocal.exe

description ioc process

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

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

alocal.exe

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

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral3/memory/2040-54-0x0000000001140000-0x000000000161D000-memory.dmp	themida
behavioral3/memory/2040-55-0x0000000001140000-0x000000000161D000-memory.dmp	themida
behavioral3/memory/2040-57-0x0000000001140000-0x000000000161D000-memory.dmp	themida
behavioral3/memory/2040-56-0x0000000001140000-0x000000000161D000-memory.dmp	themida
behavioral3/memory/2040-58-0x0000000001140000-0x000000000161D000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

alocal.exe

description ioc process

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

Processes:

alocal.exe

pid process

2040 alocal.exe

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

pid	process
2040	alocal.exe

C:\Users\Admin\AppData\Local\Temp\alocal.exe
"C:\Users\Admin\AppData\Local\Temp\alocal.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
PID:2040

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

Replay Monitor

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Downloads

memory/2040-54-0x0000000001140000-0x000000000161D000-memory.dmp

Filesize
4.9MB

Download
memory/2040-55-0x0000000001140000-0x000000000161D000-memory.dmp

Filesize
4.9MB

Download
memory/2040-57-0x0000000001140000-0x000000000161D000-memory.dmp

Filesize
4.9MB

Download
memory/2040-56-0x0000000001140000-0x000000000161D000-memory.dmp

Filesize
4.9MB

Download
memory/2040-58-0x0000000001140000-0x000000000161D000-memory.dmp

Filesize
4.9MB

Download