b89ca81fe6a92e47a8587732ba500132345d187972d825ca70d18191cb61f36a

Analysis

max time kernel
18s
max time network
21s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22-08-2024 12:17

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General

Target

vax loader_protected.exe
Size

2.8MB
MD5

78acdef46270d9b357032e0050752c50
SHA1

d5ae2895b3855b634406a2afc8ddda83c2b2fec6
SHA256

b89ca81fe6a92e47a8587732ba500132345d187972d825ca70d18191cb61f36a
SHA512

48fa74be027f95f40d74fc94e8d62b39ed12ec3403b5e6c0782a40c5a737f42da3ede4ef9e168bc6fcc842e11c1c31bea5d43a12d991aab346a559b06e83a8ca
SSDEEP

49152:U5jjZUvK1KnoWpI7I1oE/KsOAC12pgeClroU9M+9kN4k8JDj8R4Q1cUWS:UjZU2x+R/I2qtNoU9M9N4FJDjMZ6w

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	vax loader_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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	vax loader_protected.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	vax loader_protected.exe

Themida packer 7 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/3016-0-0x00007FF6A8AD0000-0x00007FF6A936B000-memory.dmp	themida
behavioral1/memory/3016-3-0x00007FF6A8AD0000-0x00007FF6A936B000-memory.dmp	themida
behavioral1/memory/3016-4-0x00007FF6A8AD0000-0x00007FF6A936B000-memory.dmp	themida
behavioral1/memory/3016-2-0x00007FF6A8AD0000-0x00007FF6A936B000-memory.dmp	themida
behavioral1/memory/3016-5-0x00007FF6A8AD0000-0x00007FF6A936B000-memory.dmp	themida
behavioral1/memory/3016-6-0x00007FF6A8AD0000-0x00007FF6A936B000-memory.dmp	themida
behavioral1/memory/3016-7-0x00007FF6A8AD0000-0x00007FF6A936B000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	vax loader_protected.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3016	vax loader_protected.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3016	vax loader_protected.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 2348	3016	vax loader_protected.exe	88
PID 3016 wrote to memory of 2348	3016	vax loader_protected.exe	88
PID 2348 wrote to memory of 3672	2348	cmd.exe	90
PID 2348 wrote to memory of 3672	2348	cmd.exe	90
PID 2348 wrote to memory of 3728	2348	cmd.exe	91
PID 2348 wrote to memory of 3728	2348	cmd.exe	91
PID 2348 wrote to memory of 4892	2348	cmd.exe	92
PID 2348 wrote to memory of 4892	2348	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\vax loader_protected.exe
"C:\Users\Admin\AppData\Local\Temp\vax loader_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
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\vax loader_protected.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2348
- - C:\Windows\system32\certutil.exe
    certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\vax loader_protected.exe" MD5
    3⤵
    PID:3672
- - C:\Windows\system32\find.exe
    find /i /v "md5"
    3⤵
    PID:3728
- - C:\Windows\system32\find.exe
    find /i /v "certutil"
    3⤵
    PID:4892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3016-0-0x00007FF6A8AD0000-0x00007FF6A936B000-memory.dmp

Filesize
8.6MB

Download
memory/3016-1-0x00007FFD85B10000-0x00007FFD85B12000-memory.dmp

Filesize
8KB

Download
memory/3016-3-0x00007FF6A8AD0000-0x00007FF6A936B000-memory.dmp

Filesize
8.6MB

Download
memory/3016-4-0x00007FF6A8AD0000-0x00007FF6A936B000-memory.dmp

Filesize
8.6MB

Download
memory/3016-2-0x00007FF6A8AD0000-0x00007FF6A936B000-memory.dmp

Filesize
8.6MB

Download
memory/3016-5-0x00007FF6A8AD0000-0x00007FF6A936B000-memory.dmp

Filesize
8.6MB

Download
memory/3016-6-0x00007FF6A8AD0000-0x00007FF6A936B000-memory.dmp

Filesize
8.6MB

Download
memory/3016-7-0x00007FF6A8AD0000-0x00007FF6A936B000-memory.dmp

Filesize
8.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads