a4bd10ac7e47dc568574f9ed0df6a1184174942ebe02efe6e9bbd27e399cc10c

Analysis

max time kernel
122s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2022, 23:22

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Reason

Machine shutdown

General

Target
a4bd10ac7e47dc568574f9ed0df6a1184174942ebe02efe6e9bbd27e399cc10c.exe
Size 100KB
Sample221206-3cn6fadf33
SHA256 a4bd10ac7e47dc568574f9ed0df6a1184174942ebe02efe6e9bbd27e399cc10c
MD5 6e23f0bab78a1d2979b7e00cace378e2
SHA1 2d89916df02bdfaa2aaad1efa30c72471684594e
SHA512 8e718e10bcc752a223a244cd793191fc3b388de1b1ba7284b19b8f8541c942c3401d4c4827ae5dc6cafe588d6f8d7567c33df32f72cbdeb3a9bc936d8a4e84ec
SSDEEP 3072:35z5qT5XSwkKXzPcdlnfdHRFY4HhgsteoMJlId:35z525kKXz0nnfdHRNHB0Id
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

persistence

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\chnairl.dll	a4bd10ac7e47dc568574f9ed0df6a1184174942ebe02efe6e9bbd27e399cc10c.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
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\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	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\DWM\ColorizationColor = "3288365271"	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\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "169"	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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4904	a4bd10ac7e47dc568574f9ed0df6a1184174942ebe02efe6e9bbd27e399cc10c.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5068	LogonUI.exe

C:\Users\Admin\AppData\Local\Temp\a4bd10ac7e47dc568574f9ed0df6a1184174942ebe02efe6e9bbd27e399cc10c.exe
"C:\Users\Admin\AppData\Local\Temp\a4bd10ac7e47dc568574f9ed0df6a1184174942ebe02efe6e9bbd27e399cc10c.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
PID:4904

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39eb855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:5068

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4904-132-0x0000000001000000-0x000000000101A000-memory.dmp

Download

memory/4904-133-0x0000000001000000-0x000000000101A000-memory.dmp