912c16fc6c53627f065d8b7fdc49be683e40cb7b0310641fa65221f4c1fdc319

Analysis

max time kernel
6s
max time network
7s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
09/05/2024, 10:26

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Reason

Machine shutdown

General

Target
912c16fc6c53627f065d8b7fdc49be683e40cb7b0310641fa65221f4c1fdc319.exe
Size 904KB
Sample240509-mgpprsfe89
SHA256 912c16fc6c53627f065d8b7fdc49be683e40cb7b0310641fa65221f4c1fdc319
MD5 404000a5eb61552e5853047568042c77
SHA1 e2db54fccdae081d8c7e73a1739757375db16fad
SHA512 16b3a2386534a63947a866c79e909e64c44f74264b3e7df00c401f0762b4263ce4f7ada9fe508f87c61abcbc32552ddbefebd10944c1e7296261b35fd63ee36f
SSDEEP 12288:/yQd5G3mSBxxK5ietUZP5x58dGAq6YX0ttyPHfisVQTImli7l:/yQDG3mLiWUl5zxAv+2sVQTPi7l
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

bootkit persistence upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x00090000000233fa-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
5792	912c16fc6c53627f065d8b7fdc49be683e40cb7b0310641fa65221f4c1fdc319.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x00090000000233fa-1.dat	upx
behavioral2/memory/5792-5-0x00000000747E0000-0x000000007481C000-memory.dmp	upx

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	912c16fc6c53627f065d8b7fdc49be683e40cb7b0310641fa65221f4c1fdc319.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
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 = "217"	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\Themes\History\AutoColor = "0"	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\DWM	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\AccentColor = "4292311040"	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\ColorizationAfterglowBalance = "10"	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\DWM\ColorizationBlurBalance = "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\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	5792	912c16fc6c53627f065d8b7fdc49be683e40cb7b0310641fa65221f4c1fdc319.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
5792	912c16fc6c53627f065d8b7fdc49be683e40cb7b0310641fa65221f4c1fdc319.exe
5792	912c16fc6c53627f065d8b7fdc49be683e40cb7b0310641fa65221f4c1fdc319.exe
2928	LogonUI.exe

C:\Users\Admin\AppData\Local\Temp\912c16fc6c53627f065d8b7fdc49be683e40cb7b0310641fa65221f4c1fdc319.exe
"C:\Users\Admin\AppData\Local\Temp\912c16fc6c53627f065d8b7fdc49be683e40cb7b0310641fa65221f4c1fdc319.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:5792

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39ae055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2928

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

ExtraDll.dll

Path C:\Users\Admin\AppData\Local\Temp\ExtraDll.dll
Size 97KB
SHA256 48773d597155dc39dd172c26867972da89dd61fcee0d138433eda26a2d8633b7
MD5 c35425ad1f0c32225d307310deccc335
SHA1 b2e347b244e40ffa113dffaffd1895777e3ac30a
SHA512 47b6a7447fcc4f9f21018f608fcbdb5650f16cbd869cae5d4ed5d9b88ca1e944de1cac10e9a252aa7b210f1a31456c0ed91728b8a7e24def99d7e3f9683e2bae
SSDEEP 3072:58yan8ia/orIGiqsJkaBJWIKvEfdEFAOr:jOKfqWky3cElEFt
MD5 SHA1 SHA512 SSDEEP

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memory/5792-5-0x00000000747E0000-0x000000007481C000-memory.dmp

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Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads