96349b4ca999a16f0e3b2159c41d25685e3dca999322b3a29b25369a24f63ed1

Analysis

max time kernel
142s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230220-es
resource tags

arch:x64arch:x86image:win10v2004-20230220-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
30-03-2023 20:58

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General

Target

modest-menu.exe
Size

15.3MB
MD5

af6b000cca334405709a7a45f07b1788
SHA1

57c2502d8ca01a6da5b7ab4e61f857e9e0fd40f8
SHA256

0a03f7b518d5bc76cf58e1bfaad2b6840262b494553626c3727acbb8bd70cb91
SHA512

5dcfefd3dd7111fad2b96cad039a0aa3ea388d1666b20a2ada004c05658171b52b26d699b77564031960505c02cdaf440c66c2694d33ead970fe6fcd8b299b5e
SSDEEP

393216:9FESY8FS6GWgq2pyqNqfMgpcbVTv1OGOSHC84uza:DESYUS6GPqqNqUvToGOSHC8w

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 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral3/memory/2768-133-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp	themida
behavioral3/memory/2768-134-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp	themida
behavioral3/memory/2768-135-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp	themida
behavioral3/memory/2768-136-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp	themida
behavioral3/memory/2768-137-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp	themida
behavioral3/memory/2768-138-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp	themida
behavioral3/memory/2768-139-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp	themida
behavioral3/memory/2768-141-0x00007FF764BB0000-0x00007FF7671AD000-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

2768 modest-menu.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

modest-menu.exe

pid process

2768 modest-menu.exe
2768 modest-menu.exe

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

pid	process
2768	modest-menu.exe

pid	process
2768	modest-menu.exe
2768	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:2768

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

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Downloads

memory/2768-133-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp

Filesize
38.0MB

Download
memory/2768-134-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp

Filesize
38.0MB

Download
memory/2768-135-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp

Filesize
38.0MB

Download
memory/2768-136-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp

Filesize
38.0MB

Download
memory/2768-137-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp

Filesize
38.0MB

Download
memory/2768-138-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp

Filesize
38.0MB

Download
memory/2768-139-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp

Filesize
38.0MB

Download
memory/2768-141-0x00007FF764BB0000-0x00007FF7671AD000-memory.dmp

Filesize
38.0MB

Download