94e3a8f25dbff86ee6fe11ee045b70055357c08ae1723598a361c96eac5e2c24

Analysis

max time kernel
124s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
08-11-2023 03:15

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General

Target

Bootkits/6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe
Size

83KB
MD5

64e1aa6f5dca669ba51678157058d54b
SHA1

9f6df0a011748160b0c18fb2b44ebe9fa9d517e9
SHA256

6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286
SHA512

91f5cc1aba9b26a16e7b9e082c2982f71fe9996be9072f0252a2864894904fec57b65b6d1dae98274df2fe3e4ab4626364040e16802fa5ccf152b71228b54c0d
SSDEEP

1536:esDWvcIU3ayXD1D12E5G9JR0+iGxxUWfdOzq3bdPOoH6LBqtgkdd+4MxUAsKliwZ:WeayXIJR0hGvTfMwfaLBViYUAzF

Score

7^/10

bootkit persistence

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Control Panel\International\Geo\Nation	6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum	6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.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

Processes:

6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe

description	pid	process	target process
PID 3856 wrote to memory of 4832	3856	6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe	cmd.exe
PID 3856 wrote to memory of 4832	3856	6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\Bootkits\6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe
"C:\Users\Admin\AppData\Local\Temp\Bootkits\6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:3856

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\Bootkits\6B0CD0~1.EXE
2⤵
PID:4832

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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