a6c3d2432a392c6c748f7f124caf61c6d8601b01d995c479b3fca9b1d4e1165e

Reason

Machine shutdown

General

Target

a6c3d2432a392c6c748f7f124caf61c6d8601b01d995c479b3fca9b1d4e1165e.exe
Size

131.2MB
MD5

2299fbcdba412d89fd74e9177caaad2f
SHA1

63e7c2d440f3b10ec871bbdb2abb68a664f836dc
SHA256

a6c3d2432a392c6c748f7f124caf61c6d8601b01d995c479b3fca9b1d4e1165e
SHA512

9501ceef29b4effdfa21eb499e228a3eb65e15a759037517b08285953c93042b0fc8c359ae7aadaeac1f6065ec2222303ab06e97036126c059cc23b9835c6500
SSDEEP

786432:K/Bzjh0PSmVGvNtp6YKD7Vz40zj9RKZlzbUNdTNoYboNzWeCrjStSTtLwSTRpf4t:K/4NYB0GbUDBZopWeCroiSvaSdL

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	a6c3d2432a392c6c748f7f124caf61c6d8601b01d995c479b3fca9b1d4e1165e.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	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\EnableWindowColorization = "251"	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 (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
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "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\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: 33	4192	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	4192	AUDIODG.EXE
Token: SeShutdownPrivilege	1308	shutdown.exe
Token: SeRemoteShutdownPrivilege	1308	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5044	LogonUI.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4788 wrote to memory of 1308	4788	a6c3d2432a392c6c748f7f124caf61c6d8601b01d995c479b3fca9b1d4e1165e.exe	106
PID 4788 wrote to memory of 1308	4788	a6c3d2432a392c6c748f7f124caf61c6d8601b01d995c479b3fca9b1d4e1165e.exe	106
PID 4788 wrote to memory of 1308	4788	a6c3d2432a392c6c748f7f124caf61c6d8601b01d995c479b3fca9b1d4e1165e.exe	106

C:\Users\Admin\AppData\Local\Temp\a6c3d2432a392c6c748f7f124caf61c6d8601b01d995c479b3fca9b1d4e1165e.exe
"C:\Users\Admin\AppData\Local\Temp\a6c3d2432a392c6c748f7f124caf61c6d8601b01d995c479b3fca9b1d4e1165e.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:4788
- C:\Windows\SysWOW64\shutdown.exe
  "shutdown" /r /t 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1308

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x2fc 0x3d0
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4192

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa395a055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:5044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4788-0-0x0000000006BD0000-0x0000000007559000-memory.dmp

Filesize
9.5MB

Download
memory/4788-3-0x0000000006BD0000-0x0000000007559000-memory.dmp

Filesize
9.5MB

Download
memory/4788-5-0x0000000000090000-0x00000000008B8000-memory.dmp

Filesize
8.2MB

Download
memory/4788-4-0x0000000008150000-0x0000000008D39000-memory.dmp

Filesize
11.9MB

Download
memory/4788-8-0x0000000008150000-0x0000000008D39000-memory.dmp

Filesize
11.9MB

Download
memory/4788-9-0x0000000006410000-0x000000000642F000-memory.dmp

Filesize
124KB

Download
memory/4788-13-0x00000000065D0000-0x0000000006684000-memory.dmp

Filesize
720KB

Download
memory/4788-12-0x0000000006410000-0x000000000642F000-memory.dmp

Filesize
124KB

Download
memory/4788-20-0x0000000006400000-0x000000000640C000-memory.dmp

Filesize
48KB

Download
memory/4788-17-0x0000000006400000-0x000000000640C000-memory.dmp

Filesize
48KB

Download
memory/4788-21-0x0000000006440000-0x0000000006446000-memory.dmp

Filesize
24KB

Download
memory/4788-16-0x00000000065D0000-0x0000000006684000-memory.dmp

Filesize
720KB

Download
memory/4788-24-0x0000000006440000-0x0000000006446000-memory.dmp

Filesize
24KB

Download
memory/4788-25-0x00000000064A0000-0x00000000064DA000-memory.dmp

Filesize
232KB

Download
memory/4788-28-0x00000000064A0000-0x00000000064DA000-memory.dmp

Filesize
232KB

Download
memory/4788-33-0x0000000006500000-0x0000000006515000-memory.dmp

Filesize
84KB

Download
memory/4788-36-0x0000000006500000-0x0000000006515000-memory.dmp

Filesize
84KB

Download
memory/4788-32-0x0000000006470000-0x0000000006481000-memory.dmp

Filesize
68KB

Download
memory/4788-37-0x0000000006560000-0x0000000006572000-memory.dmp

Filesize
72KB

Download
memory/4788-40-0x0000000006560000-0x0000000006572000-memory.dmp

Filesize
72KB

Download
memory/4788-29-0x0000000006470000-0x0000000006481000-memory.dmp

Filesize
68KB

Download
memory/4788-43-0x0000000007D10000-0x0000000007D20000-memory.dmp

Filesize
64KB

Download
memory/4788-50-0x0000000007D80000-0x0000000007D9D000-memory.dmp

Filesize
116KB

Download
memory/4788-49-0x0000000007D10000-0x0000000007D20000-memory.dmp

Filesize
64KB

Download
memory/4788-53-0x0000000007D80000-0x0000000007D9D000-memory.dmp

Filesize
116KB

Download
memory/4788-57-0x0000000007DF0000-0x0000000007E2C000-memory.dmp

Filesize
240KB

Download
memory/4788-65-0x0000000007D30000-0x0000000007D39000-memory.dmp

Filesize
36KB

Download
memory/4788-66-0x0000000007DA0000-0x0000000007DB3000-memory.dmp

Filesize
76KB

Download
memory/4788-62-0x0000000007D30000-0x0000000007D39000-memory.dmp

Filesize
36KB

Download
memory/4788-61-0x0000000007F20000-0x0000000008009000-memory.dmp

Filesize
932KB

Download
memory/4788-58-0x0000000007F20000-0x0000000008009000-memory.dmp

Filesize
932KB

Download
memory/4788-54-0x0000000007DF0000-0x0000000007E2C000-memory.dmp

Filesize
240KB

Download
memory/4788-69-0x0000000007DA0000-0x0000000007DB3000-memory.dmp

Filesize
76KB

Download
memory/4788-110-0x0000000000090000-0x00000000008B8000-memory.dmp

Filesize
8.2MB

Download
memory/4788-111-0x0000000000090000-0x00000000008B8000-memory.dmp

Filesize
8.2MB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads