| File name: | javaw.exe |
| Full analysis: | https://app.any.run/tasks/1981de8b-b3b1-4b51-84c0-5fb3d2facbb0 |
| Verdict: | Malicious activity |
| Threats: | BlueSky ransomware, first identified in June 2022, shares code similarities with other well-known ransomware families like Conti and Babuk. It primarily spreads via phishing emails and malicious links and can propagate through networks using SMB protocols. BlueSky uses advanced evasion techniques, such as hiding its processes from debuggers via the NtSetInformationThread API, making it difficult for analysts to detect and mitigate its attacks. |
| Analysis date: | May 11, 2025, 13:48:17 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, 3 sections |
| MD5: | D8A44D2ED34B5FEE7C8E24D998F805D9 |
| SHA1: | D8369CB0D8CCEC95B2A49BA34AA7749B60998661 |
| SHA256: | 3E035F2D7D30869CE53171EF5A0F761BFB9C14D94D9FE6DA385E20B8D96DC2FB |
| SSDEEP: | 1536:wBrE2D2ZjyKBQs8swOVWCqBTXdXu3+MkNCMm2i9w4:iBD2RfQ/7OVWS3+1rm2i9w4 |
MALICIOUS
RANSOMWARE has been detected
- javaw.exe (PID: 4208)
Renames files like ransomware
- javaw.exe (PID: 4208)
Bluesky note has been found
- javaw.exe (PID: 4208)
SUSPICIOUS
Reads the date of Windows installation
- javaw.exe (PID: 4208)
INFO
Checks supported languages
- javaw.exe (PID: 4208)
Creates files or folders in the user directory
- javaw.exe (PID: 4208)
Reads the computer name
- javaw.exe (PID: 4208)
Reads the machine GUID from the registry
- javaw.exe (PID: 4208)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable (generic) (52.9) |
|---|---|---|
| .exe | | | Generic Win/DOS Executable (23.5) |
| .exe | | | DOS Executable Generic (23.5) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2085:02:07 16:05:31+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 94.8 |
| CodeSize: | 67584 |
| InitializedDataSize: | 7168 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xe880 |
| OSVersion: | 5.1 |
| ImageVersion: | 48623.16013 |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
Total processes
130
Monitored processes
3
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4208 | "C:\Users\admin\AppData\Local\Temp\javaw.exe" | C:\Users\admin\AppData\Local\Temp\javaw.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 4244 | "C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent | C:\Windows\System32\slui.exe | — | SppExtComObj.Exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows Activation Client Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5244 | C:\WINDOWS\system32\SppExtComObj.exe -Embedding | C:\Windows\System32\SppExtComObj.Exe | — | svchost.exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: KMS Connection Broker Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
681
Read events
677
Write events
4
Delete events
0
Modification events
| (PID) Process: | (4208) javaw.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\EA408C6BF0D12F526F821798C3F54C9A |
| Operation: | write | Name: | RECOVERYBLOB |
Value: 84F84881FB98D270B2CFC9098890BB15120A252385435DA1384A5BEF99479CA7C3CAC5BA78DFD4C28FF4E3D29DBEB4D602982D2C43D2D2D23FA552B921D0D9B61DE7F02EA758A5E40370ADC96201A353D0CFDB50F667283C1233AAD4CA372B7A6B52BB60768B51610D92B8AE0ECF3150490B3B31AA76C047 | |||
| (PID) Process: | (4208) javaw.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\EA408C6BF0D12F526F821798C3F54C9A |
| Operation: | write | Name: | x25519_public |
Value: EEE4E552BA86C129E4257E1B749397A58107DB2D86500F4028C4E7380973FF7B | |||
| (PID) Process: | (4208) javaw.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\EA408C6BF0D12F526F821798C3F54C9A |
| Operation: | write | Name: | completed |
Value: 0 | |||
| (PID) Process: | (4208) javaw.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\EA408C6BF0D12F526F821798C3F54C9A |
| Operation: | write | Name: | completed |
Value: 1 | |||
Executable files
0
Suspicious files
78
Text files
110
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 4208 | javaw.exe | C:\Users\admin\Desktop\duefront.rtf | binary | |
MD5:7058155EF5DE658677B28DF5C5A6E71E | SHA256:24E4B541B16B1A6E122E070B781D6B5869DF516236D57721804508B9DF7B20BB | |||
| 4208 | javaw.exe | C:\Users\admin\3D Objects\# DECRYPT FILES BLUESKY #.txt | text | |
MD5:D6319C334EFD168F44F2BE5407F9BA32 | SHA256:FDCF7ECA20B9B999403013537B7C7A6A66321B7F7C31460AC224213606ABAAD1 | |||
| 4208 | javaw.exe | C:\Users\admin\.ms-ad\# DECRYPT FILES BLUESKY #.txt | text | |
MD5:D6319C334EFD168F44F2BE5407F9BA32 | SHA256:FDCF7ECA20B9B999403013537B7C7A6A66321B7F7C31460AC224213606ABAAD1 | |||
| 4208 | javaw.exe | C:\Users\admin\Desktop\considerteam.rtf | binary | |
MD5:3E69566088532DBBC2848137A38AD045 | SHA256:9CB593DE323D479B490772ECFCFD7188EFD968D50F41AC287C28C664B5946736 | |||
| 4208 | javaw.exe | C:\Users\admin\.ms-ad\# DECRYPT FILES BLUESKY #.html | html | |
MD5:50B525019B969BA220CE4A9C0B2B1B8B | SHA256:A32D6EFA4225BADA1EA7A9A9D32E48AEAAC655D4428D07D026BCEF9170082583 | |||
| 4208 | javaw.exe | C:\Users\admin\# DECRYPT FILES BLUESKY #.html | html | |
MD5:50B525019B969BA220CE4A9C0B2B1B8B | SHA256:A32D6EFA4225BADA1EA7A9A9D32E48AEAAC655D4428D07D026BCEF9170082583 | |||
| 4208 | javaw.exe | C:\Users\admin\3D Objects\# DECRYPT FILES BLUESKY #.html | html | |
MD5:50B525019B969BA220CE4A9C0B2B1B8B | SHA256:A32D6EFA4225BADA1EA7A9A9D32E48AEAAC655D4428D07D026BCEF9170082583 | |||
| 4208 | javaw.exe | C:\Users\admin\AppData\Local\VirtualStore\# DECRYPT FILES BLUESKY #.html | html | |
MD5:50B525019B969BA220CE4A9C0B2B1B8B | SHA256:A32D6EFA4225BADA1EA7A9A9D32E48AEAAC655D4428D07D026BCEF9170082583 | |||
| 4208 | javaw.exe | C:\Users\admin\AppData\Local\VirtualStore\# DECRYPT FILES BLUESKY #.txt | text | |
MD5:D6319C334EFD168F44F2BE5407F9BA32 | SHA256:FDCF7ECA20B9B999403013537B7C7A6A66321B7F7C31460AC224213606ABAAD1 | |||
| 4208 | javaw.exe | C:\Users\admin\Contacts\# DECRYPT FILES BLUESKY #.html | html | |
MD5:50B525019B969BA220CE4A9C0B2B1B8B | SHA256:A32D6EFA4225BADA1EA7A9A9D32E48AEAAC655D4428D07D026BCEF9170082583 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
27
DNS requests
13
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
5496 | MoUsoCoreWorker.exe | GET | 200 | 23.52.120.96:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
5496 | MoUsoCoreWorker.exe | GET | 200 | 23.48.23.156:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
6544 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
6668 | SIHClient.exe | GET | 200 | 23.52.120.96:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
6668 | SIHClient.exe | GET | 200 | 23.52.120.96:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2104 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
5496 | MoUsoCoreWorker.exe | 23.48.23.156:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
5496 | MoUsoCoreWorker.exe | 23.52.120.96:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
3216 | svchost.exe | 172.211.123.248:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
6544 | svchost.exe | 40.126.32.138:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
6544 | svchost.exe | 2.17.190.73:80 | ocsp.digicert.com | AKAMAI-AS | DE | whitelisted |
4208 | javaw.exe | 192.168.100.2:445 | — | — | — | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |