6ae1b1dbd01b7ce27f8486f31aa0c9724b38099d8026c45b2db10dc1425d813b

Analysis

max time kernel
147s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240419-en
resource tags

arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
submitted
10/06/2024, 13:12

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General

Target

secret.txt
Size

153B
MD5

2242698b786a720416a7bb3de87e6f0c
SHA1

695c4ef2d139783519fb6e73c55669a500e72e2f
SHA256

6ae1b1dbd01b7ce27f8486f31aa0c9724b38099d8026c45b2db10dc1425d813b
SHA512

2811649ed33c4da1d129df22a607fdf4305818d91083c9a3a6b10c76e714beb23aaf86c19b90442e2f93642cbd920e8bece4deb0d6dee9c22eeccfab3a858f00

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 35 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\Mode = "4"	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000009000000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings	cmd.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\LogicalViewMode = "1"	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\FFlags = "1092616257"	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000	NOTEPAD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}"	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings	NOTEPAD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\FFlags = "1"	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByKey:PID = "0"	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupView = "0"	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByDirection = "1"	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\IconSize = "16"	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	NOTEPAD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Documents"	NOTEPAD.EXE
Key created	\Registry\User\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\NotificationData	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 14002e80922b16d365937a46956b92703aca08af0000	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1"	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	NOTEPAD.EXE

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
3260	NOTEPAD.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3260	NOTEPAD.EXE
3260	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3648 wrote to memory of 3260	3648	cmd.exe	78
PID 3648 wrote to memory of 3260	3648	cmd.exe	78

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\secret.txt
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3648
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\secret.txt
  2⤵
  - Modifies registry class
  - Opens file in notepad (likely ransom note)
  - Suspicious use of SetWindowsHookEx
  PID:3260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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