5444f8a0e98b215d50531dcfa516cd184fdd534e85eeffda21b0337c78425d5b

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
10/10/2023, 03:32

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General

Target

5444f8a0e98b215d50531dcfa516cd184fdd534e85eeffda21b0337c78425d5b.exe
Size

4.2MB
MD5

43a3be1c25a72b96cd73bd96e00432f8
SHA1

7e3728f783719ef365dbd88502d803dce647160e
SHA256

5444f8a0e98b215d50531dcfa516cd184fdd534e85eeffda21b0337c78425d5b
SHA512

18b1628bfbd41156d26739f231e140c08c7dc15ae5725a15bcf12d656b36ca0ec7867635dd4cdfc03408d50039f4b917284f3462b88aa2ee64ad6497c622bc16
SSDEEP

98304:IKwWceyQx/+PG3/ERL61GgIq47AkpLF3g0HbMjO4C08:Il6hNvERLalkp9xHbTb08

Score

9^/10

bootkit evasion persistence 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__	5444f8a0e98b215d50531dcfa516cd184fdd534e85eeffda21b0337c78425d5b.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\VideoBiosVersion	5444f8a0e98b215d50531dcfa516cd184fdd534e85eeffda21b0337c78425d5b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	5444f8a0e98b215d50531dcfa516cd184fdd534e85eeffda21b0337c78425d5b.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Wine	5444f8a0e98b215d50531dcfa516cd184fdd534e85eeffda21b0337c78425d5b.exe

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	5444f8a0e98b215d50531dcfa516cd184fdd534e85eeffda21b0337c78425d5b.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	5444f8a0e98b215d50531dcfa516cd184fdd534e85eeffda21b0337c78425d5b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1572	5444f8a0e98b215d50531dcfa516cd184fdd534e85eeffda21b0337c78425d5b.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1572	5444f8a0e98b215d50531dcfa516cd184fdd534e85eeffda21b0337c78425d5b.exe

C:\Users\Admin\AppData\Local\Temp\5444f8a0e98b215d50531dcfa516cd184fdd534e85eeffda21b0337c78425d5b.exe
"C:\Users\Admin\AppData\Local\Temp\5444f8a0e98b215d50531dcfa516cd184fdd534e85eeffda21b0337c78425d5b.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

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/1572-0-0x0000000000400000-0x0000000000E30000-memory.dmp

Filesize
10.2MB

Download
memory/1572-1-0x00000000778B0000-0x00000000778B2000-memory.dmp

Filesize
8KB

Download
memory/1572-5-0x0000000000400000-0x0000000000E30000-memory.dmp

Filesize
10.2MB

Download