3f504f7015e51873898235bfac8108d2ea29cdb2dec27c76dd42395316e8ffb0

Resubmissions

01/06/2023, 22:52

230601-2tdklagg99 7

01/06/2023, 22:46

230601-2p7mwahc2w 7

Analysis

max time kernel
580s
max time network
422s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
01/06/2023, 22:46

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Report Analysis Logs

General

Target

Paint tool Sai Angel Drawin/Paint Tool SAI/Sai.exe
Size

1.6MB
MD5

f8840c6ce81203775f436c7533a5448a
SHA1

236d89fb9c1517b2aca6c135792ad1d40bb24326
SHA256

91e5c38110ba2dace3d4d20b8f12f62c01af417c4d27873b36aff393cb6df6c3
SHA512

4c0944e883823904800ea99e2ebd8f73616af55f9efdf760e553fa4ee90dd419d6e23b1425609ca57e782c91dcb9cfb2cd6ac8a2c3191c503fbef476c9b14403
SSDEEP

24576:PjNgYD3KIzDlXdXYawBqUqS54iO+QAh76cINTRNCvo5N7QJ:BnHf9+QAYTTAo

Score

6^/10

bootkit persistence

Malware Config

Signatures

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

T1067

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

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 5 IoCs

Processor 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\CentralProcessor\1\ProcessorNameString	Sai.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\2	Sai.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	Sai.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Sai.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\1	Sai.exe

C:\Users\Admin\AppData\Local\Temp\Paint tool Sai Angel Drawin\Paint Tool SAI\Sai.exe
"C:\Users\Admin\AppData\Local\Temp\Paint tool Sai Angel Drawin\Paint Tool SAI\Sai.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
PID:1988

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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