71296bb15128fe1039a0566b746afaee20092fd8b575322536ec97725a9da9cd

General

Target

modest-menu.exe
Size

11.5MB
MD5

3930ab52a2e6f4b0b371421cd3e509b9
SHA1

907013d0f905adc305caf0251c164db528eb596e
SHA256

71296bb15128fe1039a0566b746afaee20092fd8b575322536ec97725a9da9cd
SHA512

a6d8ed3dc52422b0f486e6ea4f87a414461ec0a04dc5257bdc7341362b4f141331f1eac5b5ce52c6c532450b188e87383944808153134a2e144660b5cfd9130e

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:

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.

Query Registry

T1012

System Information Discovery

T1082

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 6 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral3/memory/3124-130-0x00007FF795790000-0x00007FF79748C000-memory.dmp	themida
behavioral3/memory/3124-132-0x00007FF795790000-0x00007FF79748C000-memory.dmp	themida
behavioral3/memory/3124-133-0x00007FF795790000-0x00007FF79748C000-memory.dmp	themida
behavioral3/memory/3124-134-0x00007FF795790000-0x00007FF79748C000-memory.dmp	themida
behavioral3/memory/3124-135-0x00007FF795790000-0x00007FF79748C000-memory.dmp	themida
behavioral3/memory/3124-136-0x00007FF795790000-0x00007FF79748C000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

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

3124 modest-menu.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

modest-menu.exe

pid process

3124 modest-menu.exe
3124 modest-menu.exe

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

pid	process
3124	modest-menu.exe

pid	process
3124	modest-menu.exe
3124	modest-menu.exe

C:\Users\Admin\AppData\Local\Temp\modest-menu.exe
"C:\Users\Admin\AppData\Local\Temp\modest-menu.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:3124

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3124-130-0x00007FF795790000-0x00007FF79748C000-memory.dmp

Filesize
29.0MB

Download
memory/3124-131-0x00007FF8C1530000-0x00007FF8C1725000-memory.dmp

Filesize
2.0MB

Download
memory/3124-132-0x00007FF795790000-0x00007FF79748C000-memory.dmp

Filesize
29.0MB

Download
memory/3124-133-0x00007FF795790000-0x00007FF79748C000-memory.dmp

Filesize
29.0MB

Download
memory/3124-134-0x00007FF795790000-0x00007FF79748C000-memory.dmp

Filesize
29.0MB

Download
memory/3124-135-0x00007FF795790000-0x00007FF79748C000-memory.dmp

Filesize
29.0MB

Download
memory/3124-136-0x00007FF795790000-0x00007FF79748C000-memory.dmp

Filesize
29.0MB

Download
memory/3124-137-0x00007FF8C1530000-0x00007FF8C1725000-memory.dmp

Filesize
2.0MB

Download

Analysis

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