Analysis
- max time kernel
60s - max time network
67s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
15/08/2026, 18:00
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
CryptoWall.exe
Resource
win10v2004-20260513-en
8 signatures
60 seconds
Behavioral task
behavioral2
Sample
CryptoWall.exe
Resource
win11ltsc2024-20260710-en
7 signatures
60 seconds
General
- Target CryptoWall.exe
- Size 132KB
- Sample260815-wlaaba1dng
- SHA256 e036d68b8f8b7afc6c8b6252876e1e290f11a26d4ad18ac6f310662845b2c734
- MD5 919034c8efb9678f96b47a20fa6199f2
- SHA1 747070c74d0400cffeb28fbea17b64297f14cfbd
- SHA512 745a81c50bbfd62234edb9788c83a22e0588c5d25c00881901923a02d7096c71ef5f0cd5b73f92ad974e5174de064b0c5ea8044509039aab14b2aed83735a7c4
- SSDEEP 3072:naRQpzd/99wen3XgWorw8I3h8LkMvqCgQfBUnPy8L6kssU:nJdTwo30ri3h8LkMvqCgQfBUPy8L6ksP
- TLSH T1E3D31910D060C3BAE09250F9D7EB0DBDB8355D50235619C763C63F38AB92DE5A731BAA
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fe06c223.exe explorer.exe - Executes dropped EXE 2 IoCs
pid Process 2456 fe06c223.exe 3428 fe06c223.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2246396966-3025826688-3847171515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fe06c22 = "C:\\fe06c223\\fe06c223.exe" explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2246396966-3025826688-3847171515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fe06c223 = "C:\\Users\\Admin\\AppData\\Roaming\\fe06c223.exe" explorer.exe - Looks up external IP address via web service 1 TTPs 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 15 ip-addr.es 1 ip-addr.es 5 myexternalip.com - System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language fe06c223.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language fe06c223.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language CryptoWall.exe - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 5940 CryptoWall.exe 4932 explorer.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 5940 wrote to memory of 4932 5940 CryptoWall.exe 89 PID 4932 wrote to memory of 5588 4932 explorer.exe 92
Processes
-
C:\Users\Admin\AppData\Local\Temp\CryptoWall.exe"C:\Users\Admin\AppData\Local\Temp\CryptoWall.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:5940 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\syswow64\explorer.exe"2⤵
- Creates a file in the Startup directory
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4932 -
C:\Windows\SysWOW64\svchost.exe-k netsvcs3⤵
- System Location Discovery: System Language Discovery
PID:5588
-
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C:\fe06c223\fe06c223.exeC:\fe06c223\fe06c223.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2456
-
C:\Users\Admin\AppData\Roaming\fe06c223.exeC:\Users\Admin\AppData\Roaming\fe06c223.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3428
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\fe06c223\fe06c223.exe
- Size 132KB
- SHA256 e036d68b8f8b7afc6c8b6252876e1e290f11a26d4ad18ac6f310662845b2c734
- MD5 919034c8efb9678f96b47a20fa6199f2
- SHA1 747070c74d0400cffeb28fbea17b64297f14cfbd
- SHA512 745a81c50bbfd62234edb9788c83a22e0588c5d25c00881901923a02d7096c71ef5f0cd5b73f92ad974e5174de064b0c5ea8044509039aab14b2aed83735a7c4
- SSDEEP 3072:naRQpzd/99wen3XgWorw8I3h8LkMvqCgQfBUnPy8L6kssU:nJdTwo30ri3h8LkMvqCgQfBUPy8L6ksP
- TLSH T1E3D31910D060C3BAE09250F9D7EB0DBDB8355D50235619C763C63F38AB92DE5A731BAA
- MD5 SHA1 SHA512 SSDEEP TLSH