2d58eab8713adf1aeeff6e92ffe90fa03f258b4720259f72a5a27d728163e8fb

Analysis

max time kernel
115s
max time network
116s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23-08-2024 10:26

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Reason

Machine shutdown

Report Analysis Logs

General

Target

d87d5cacbb7946a390c0590956dfcd80N.dll
Size

17KB
MD5

d87d5cacbb7946a390c0590956dfcd80
SHA1

6438083f92145972c3e06bc8e2fb3c607d674566
SHA256

2d58eab8713adf1aeeff6e92ffe90fa03f258b4720259f72a5a27d728163e8fb
SHA512

ecb86b0fd3efb159c376e2f9e54670c6c1f9d453a24512dcb95b495ab86c50a260aa316213dee4ae69a052ac75987a7664822eefb66455d9e50e8d4f09c39db8
SSDEEP

192:LdRXQDliROL23iBfRKqMFa7LYgudpc8A1AmBM7:LbQDwRxiBpxea7ydpc88HM7

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 3 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	shutdown.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 (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	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\ColorizationAfterglow = "3288365271"	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\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\DWM	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 = "103"	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\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3760	shutdown.exe
Token: SeRemoteShutdownPrivilege	3760	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2012	LogonUI.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4624 wrote to memory of 2144	4624	rundll32.exe	84
PID 4624 wrote to memory of 2144	4624	rundll32.exe	84
PID 4624 wrote to memory of 2144	4624	rundll32.exe	84
PID 2144 wrote to memory of 3276	2144	rundll32.exe	107
PID 2144 wrote to memory of 3276	2144	rundll32.exe	107
PID 2144 wrote to memory of 3276	2144	rundll32.exe	107
PID 3276 wrote to memory of 3760	3276	cmd.exe	109
PID 3276 wrote to memory of 3760	3276	cmd.exe	109
PID 3276 wrote to memory of 3760	3276	cmd.exe	109

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d87d5cacbb7946a390c0590956dfcd80N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d87d5cacbb7946a390c0590956dfcd80N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2144
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c start C:/Windows/System32/shutdown.exe -s -f -t 00
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3276
  - - C:\Windows\SysWOW64\shutdown.exe
      C:/Windows/System32/shutdown.exe -s -f -t 00
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:3760

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa390e055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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

memory/2144-0-0x0000000069800000-0x0000000069806000-memory.dmp

Filesize
24KB

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