bd4634c411ba8bb4a42379c7d5c16784ba6c292982f7ef5fe0a87c76a2dbcc70

Analysis

max time kernel
33s
max time network
43s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
13/10/2023, 20:48

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Reason

Machine shutdown

Report Analysis Logs

General

Target

2023-08-25_de8bc935a263ee8567b6169b67ba3874_xiaoba_JC.exe
Size

700KB
MD5

de8bc935a263ee8567b6169b67ba3874
SHA1

9f138671b9cc434926dfef1c6a20ee335648b6b8
SHA256

bd4634c411ba8bb4a42379c7d5c16784ba6c292982f7ef5fe0a87c76a2dbcc70
SHA512

cab46fbf52b22d1c32a854a55e2c71fee1c8eb5e5627530395a0962f576b9025160c4a67deab30f3427d8f1bcb82dc87579f76a4f36d813e539a5c0dc47b99b3
SSDEEP

12288:rSqIYTIQfKpkPvH70o3osXW8QB2qdyfzUEEDd9QygxDms:SQgwposm8QfWwEEDYygx

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

T1542.003

description	ioc	Process
File opened for modification	\??\physicaldrive0	2023-08-25_de8bc935a263ee8567b6169b67ba3874_xiaoba_JC.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "114"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2304	2023-08-25_de8bc935a263ee8567b6169b67ba3874_xiaoba_JC.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2304	2023-08-25_de8bc935a263ee8567b6169b67ba3874_xiaoba_JC.exe
2304	2023-08-25_de8bc935a263ee8567b6169b67ba3874_xiaoba_JC.exe
5080	LogonUI.exe

C:\Users\Admin\AppData\Local\Temp\2023-08-25_de8bc935a263ee8567b6169b67ba3874_xiaoba_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2023-08-25_de8bc935a263ee8567b6169b67ba3874_xiaoba_JC.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2304

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39a9055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:5080

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

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2304-0-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

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memory/2304-1-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

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Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads