ebbf1ac8a343ac2124263a44c9f9bba5f00d147521bded66e7f58b3bffa0051a

Analysis

max time kernel
90s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
19-06-2022 20:52

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

DCRatBuild_protected.exe
Size

4.7MB
MD5

6772932f853a6bcaeaa4abf88286efdc
SHA1

d1e459274d36e8b6b72e9043bf1805a47ee85366
SHA256

ebbf1ac8a343ac2124263a44c9f9bba5f00d147521bded66e7f58b3bffa0051a
SHA512

eb1752bc5b9dd35bc35ca422042e519edf77cc89c305eee37bc8681dceaa8f6c9376288a439eec8ee469122fe2b0216263160dcdf11319c0efb9fef454ccc8e4

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:

DCRatBuild_protected.exe

description ioc process

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

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

DCRatBuild_protected.exe

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

Themida packer 4 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/3944-130-0x0000000000400000-0x0000000000ECC000-memory.dmp	themida
behavioral2/memory/3944-131-0x0000000000400000-0x0000000000ECC000-memory.dmp	themida
behavioral2/memory/3944-132-0x0000000000400000-0x0000000000ECC000-memory.dmp	themida
behavioral2/memory/3944-134-0x0000000000400000-0x0000000000ECC000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

DCRatBuild_protected.exe

description ioc process

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

Processes:

DCRatBuild_protected.exe

pid process

3944 DCRatBuild_protected.exe

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

pid	process
3944	DCRatBuild_protected.exe

C:\Users\Admin\AppData\Local\Temp\DCRatBuild_protected.exe
"C:\Users\Admin\AppData\Local\Temp\DCRatBuild_protected.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:3944

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3944-130-0x0000000000400000-0x0000000000ECC000-memory.dmp

Filesize
10.8MB

Download
memory/3944-131-0x0000000000400000-0x0000000000ECC000-memory.dmp

Filesize
10.8MB

Download
memory/3944-132-0x0000000000400000-0x0000000000ECC000-memory.dmp

Filesize
10.8MB

Download
memory/3944-133-0x0000000077580000-0x0000000077723000-memory.dmp

Filesize
1.6MB

Download
memory/3944-134-0x0000000000400000-0x0000000000ECC000-memory.dmp

Filesize
10.8MB

Download
memory/3944-135-0x0000000077580000-0x0000000077723000-memory.dmp

Filesize
1.6MB

Download