b8d40ca1053a5f95ce2083fc03f67d2383190e9ec6fa1d974ae3592ba95f507a

Analysis

max time kernel
3s
max time network
5s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07-09-2024 03:01

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Reason

Machine shutdown

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General

Target

cc3698cd1a78f0d3ab620f9aeb4c31d0N.exe
Size

100KB
MD5

cc3698cd1a78f0d3ab620f9aeb4c31d0
SHA1

f0067f5f89aa766d03c6f733f246f05df46ceb25
SHA256

b8d40ca1053a5f95ce2083fc03f67d2383190e9ec6fa1d974ae3592ba95f507a
SHA512

365e70a65eb761ae91d90137ab8ba15e6e2d69afbb6349c6d6954c667d72bbd0e25e5cd62f652efbccaf1b7551b12b44c9682fee9ad031fec925390cf7f06481
SSDEEP

1536:E4Okn8VHPRctsmB5mKu9rxZYJ928jmq1GPygnUonpRzT:E1knIHPutssPu9rxY2UmlyIUoz

Score

8^/10

discovery persistence privilege_escalation

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\guscbkh.dll	cc3698cd1a78f0d3ab620f9aeb4c31d0N.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cc3698cd1a78f0d3ab620f9aeb4c31d0N.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
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\DWM\AccentColor = "4292311040"	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\ColorizationBlurBalance = "1"	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\DWM	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\ColorizationColorBalance = "89"	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\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "58"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2144	cc3698cd1a78f0d3ab620f9aeb4c31d0N.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1988	LogonUI.exe

C:\Users\Admin\AppData\Local\Temp\cc3698cd1a78f0d3ab620f9aeb4c31d0N.exe
"C:\Users\Admin\AppData\Local\Temp\cc3698cd1a78f0d3ab620f9aeb4c31d0N.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2144

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3998855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:1988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\0004

Filesize
4B

MD5
f1d3ff8443297732862df21dc4e57262

SHA1
9069ca78e7450a285173431b3e52c5c25299e473

SHA256
df3f619804a92fdb4057192dc43dd748ea778adc52bc498ce80524c014b81119

SHA512
ec2d57691d9b2d40182ac565032054b7d784ba96b18bcb5be0bb4e70e3fb041eff582c8af66ee50256539f2181d7f9e53627c0189da7e75a4d5ef10ea93b20b3

Download Submit
memory/2144-12-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2144-11-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/2144-10-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2144-13-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download