Behavioral Report

Analysis

max time kernel
94s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
06-02-2023 19:40

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Report Files Registry Network Processes Mutex Misc

General

Target

modest-menu.exe
Size

14MB
MD5

ac062fc9712de55c8c888d6d7fe40c4b
SHA1

2be787ad29f7b783b24ec925153967f4206adacd
SHA256

e388f58cb819d7d603ab71b8909a439ee9e4ac1630c7c64386112a75f2e60966
SHA512

1ad9ecd99df89806fb1b3d7e02343f5297e0379eeef0235bbeb98288788bab9250e20e3c4d3b0a6cbab7a726bfe7dcb1dbd76419d06d7a35d51ad048b5dd450f
SSDEEP

393216:Dl/7prg5lxSqTWgwboGCij0dVMIVibKTWfXuWIQ:R6UqigwboG2JVib7fp

Score

9^/10

evasion themida trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

TTPs:

Query Registry Virtualization/Sandbox Evasion

Processes:

modest-menu.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ modest-menu.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	modest-menu.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

TTPs:

Query Registry System Information Discovery

Processes:

modest-menu.exe

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

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/4220-132-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp	themida
behavioral2/memory/4220-134-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp	themida
behavioral2/memory/4220-135-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp	themida
behavioral2/memory/4220-136-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp	themida
behavioral2/memory/4220-137-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp	themida
behavioral2/memory/4220-138-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp	themida
behavioral2/memory/4220-139-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp	themida
behavioral2/memory/4220-140-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

TTPs:

System Information Discovery

Processes:

modest-menu.exe

description ioc process

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

Processes:

modest-menu.exe

pid process

4220 modest-menu.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

modest-menu.exe

pid process

4220 modest-menu.exe
4220 modest-menu.exe

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

pid	process
4220	modest-menu.exe

pid	process
4220	modest-menu.exe
4220	modest-menu.exe

C:\Users\Admin\AppData\Local\Temp\modest-menu.exe

"C:\Users\Admin\AppData\Local\Temp\modest-menu.exe"

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:4220

Network

MITRE ATT&CK Matrix

Collection

Command and Control

Credential Access

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Discovery

Query Registry

T1012

System Information Discovery

T1082

Execution

Exfiltration

Impact

Initial Access

Lateral Movement

Persistence

Privilege Escalation

Replay Monitor

00:00 00:00

Downloads

memory/4220-132-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp

Filesize
35MB

Download
memory/4220-133-0x00007FFE9C930000-0x00007FFE9CB25000-memory.dmp

Filesize
1MB

Download
memory/4220-134-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp

Filesize
35MB

Download
memory/4220-135-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp

Filesize
35MB

Download
memory/4220-136-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp

Filesize
35MB

Download
memory/4220-137-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp

Filesize
35MB

Download
memory/4220-138-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp

Filesize
35MB

Download
memory/4220-139-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp

Filesize
35MB

Download
memory/4220-140-0x00007FF7ACB00000-0x00007FF7AEEB4000-memory.dmp

Filesize
35MB

Download
memory/4220-141-0x00007FFE9C930000-0x00007FFE9CB25000-memory.dmp

Filesize
1MB

Download