21fbc53b326028cff6f990347428dae0593c56e2b4db9d98b49cc371d37d1c92

Analysis

user interaction
yes
max time kernel
298s
max time network
280s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
30/07/2026, 19:09

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General

Target
waif_v4.5.4/Release/leechcore.lib
Size 5KB
Sample260730-xt72zsec43
SHA256 21fbc53b326028cff6f990347428dae0593c56e2b4db9d98b49cc371d37d1c92
MD5 22fdd9e621964f58df975eff6e122d46
SHA1 cc2644c987f542ecec91936b2884dc05abcd9e39
SHA512 d7e99be0c9acc69deb372c668e1465da77c97de8c2c8b8379e89990969fc4ff100d452127a6d43d34ae3eb94446d3d1c50a0e7cd058d145e16846cc08787703e
SSDEEP 96:IkZGC3kIAxoVm+iLSwKeKEKLQ5ZoWJ6WfAL:Im3ZAEQ5ZLc
TLSH
T1A0B1A037F55A5F1FF2DE20B4822190FCE52C54143602546B7C8C78CBEBAF62E960A54B
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
2340	cmd.exe

Modifies registry class 12 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000_Classes\lib_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000_Classes\lib_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000_Classes\lib_auto_file\shell\edit	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000_Classes\lib_auto_file\shell	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000_Classes\lib_auto_file\shell\open	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000_Classes\lib_auto_file\shell\open\command	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000_Classes\lib_auto_file	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000_Classes\.lib	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000_Classes\.lib\ = "lib_auto_file"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000_Classes\lib_auto_file\shell\edit\command	OpenWith.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2480	NOTEPAD.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2352	OpenWith.exe

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
2352	OpenWith.exe
2352	OpenWith.exe
2352	OpenWith.exe
2352	OpenWith.exe
2352	OpenWith.exe
2352	OpenWith.exe
2352	OpenWith.exe
2352	OpenWith.exe
2352	OpenWith.exe
2352	OpenWith.exe
2352	OpenWith.exe
2352	OpenWith.exe
2352	OpenWith.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2480	2352	OpenWith.exe	99

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\waif_v4.5.4\Release\leechcore.lib
1⤵
- Executes a command shell one-liner
- Modifies registry class
PID:2340

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\waif_v4.5.4\Release\leechcore.lib
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:2480

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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