c902a802ceb339d5a9bc912a98d4de073c438bd7e1489042c6860bc139123bef

Analysis

user interaction
yes
max time kernel
150s
max time network
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
07/08/2026, 15:28

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General

Target
CookieLoggerBuilder.cpp
Size 7KB
Sample260807-swee8s1tht
SHA256 c902a802ceb339d5a9bc912a98d4de073c438bd7e1489042c6860bc139123bef
MD5 51768f1683224ed51f3c8535eecd86e2
SHA1 4e7694dfb6e57ee00a196fbd1faf80c7591199af
SHA512 94415c6232d2ff24d590267d8937733aacf4855920c9e2734ba35bb6ae3b2eaf32aa12cf0fd082f9015bffcae328a2e5d173d85cf3245cf5c6e47df7716bb2e4
SSDEEP 96:36w17+qgGin/EQKRxx22ac3fWZ3OETkiFz0H+D1MdFQmuM2fb/AJR0:qqub/VQxRLekiFz0HPFQmkTA70
TLSH
T149E1C515216F38242D3152BA67521606FE5AA2131B964B38F48D92D0FFB07C9DAB4FE3
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

execution ransomware

Malware Config

Signatures

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
5940	cmd.exe

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2115213192-531537726-3295841909-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-2115213192-531537726-3295841909-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2115213192-531537726-3295841909-1000_Classes\cpp_auto_file	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2115213192-531537726-3295841909-1000_Classes\cpp_auto_file\shell	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2115213192-531537726-3295841909-1000_Classes\cpp_auto_file\shell\edit\command	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2115213192-531537726-3295841909-1000_Classes\cpp_auto_file\shell\open	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2115213192-531537726-3295841909-1000_Classes\cpp_auto_file\shell\open\command	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2115213192-531537726-3295841909-1000_Classes\cpp_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2115213192-531537726-3295841909-1000_Classes\.cpp	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2115213192-531537726-3295841909-1000_Classes\.cpp\ = "cpp_auto_file"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2115213192-531537726-3295841909-1000_Classes\cpp_auto_file\shell\edit	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2115213192-531537726-3295841909-1000_Classes\cpp_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	OpenWith.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
552	NOTEPAD.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5272	OpenWith.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 5272 wrote to memory of 552	5272	OpenWith.exe	91

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\CookieLoggerBuilder.cpp
1⤵
- Executes a command shell one-liner
- Modifies registry class
PID:5940

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5272
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\CookieLoggerBuilder.cpp
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:552

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

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 v16

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