| File name: | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.7z |
| Full analysis: | https://app.any.run/tasks/2a94fb95-ab4b-43d2-9334-ad25fbfacfe8 |
| 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: | April 13, 2025, 13:15:09 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-7z-compressed |
| File info: | 7-zip archive data, version 0.4 |
| MD5: | BC95C82F9B26A7BA06D8CE1C04AD71A0 |
| SHA1: | CE4F52CB0EFCF5B9C94AD2379BC8C8A1BBDAED95 |
| SHA256: | 91F65C6594EEB4DD12CD4C5B77B84E8AFD71472561DA336F88AA7492BD2EBD86 |
| SSDEEP: | 768:a9vjGOCDej/zqCkucLihj51mpCuMRPMjDTfx:a9VKej/lPhDm4RkjDd |
| .7z | | | 7-Zip compressed archive (v0.4) (57.1) |
|---|---|---|
| .7z | | | 7-Zip compressed archive (gen) (42.8) |
| FileVersion: | 7z v0.04 |
|---|---|
| ModifyDate: | 2023:07:15 05:59:08+00:00 |
| ArchivedFileName: | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 896 | 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
| |||||||||||||||
| 3888 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4220 | ping 127.0.0.1 -n 3 | C:\Windows\SysWOW64\PING.EXE | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: TCP/IP Ping Command Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4696 | "C:\WINDOWS\system32\NOTEPAD.EXE" C:\Users\Public\Desktop\# DECRYPT FILES BLUESKY #.txt | C:\Windows\System32\notepad.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Notepad Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4844 | "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
| |||||||||||||||
| 4896 | "C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\Desktop\2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.7z | C:\Program Files\WinRAR\WinRAR.exe | explorer.exe | ||||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Exit code: 0 Version: 5.91.0 Modules
| |||||||||||||||
| 4976 | "C:\Users\admin\Desktop\2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe" | C:\Users\admin\Desktop\2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 6388 | "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 3 > nul & del "C:\Users\admin\Desktop\2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe" | C:\Windows\SysWOW64\cmd.exe | — | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
| (PID) Process: | (4896) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 3 |
Value: C:\Users\admin\Desktop\preferences.zip | |||
| (PID) Process: | (4896) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 2 |
Value: C:\Users\admin\Desktop\chromium_ext.zip | |||
| (PID) Process: | (4896) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 1 |
Value: C:\Users\admin\Desktop\omni_23_10_2024_.zip | |||
| (PID) Process: | (4896) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\Desktop\2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.7z | |||
| (PID) Process: | (4896) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (4896) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (4896) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (4896) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (4896) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface |
| Operation: | write | Name: | ShowPassword |
Value: 0 | |||
| (PID) Process: | (4896) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface\MainWin |
| Operation: | write | Name: | Placement |
Value: 2C0000000000000001000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF3D0000002D000000FD03000016020000 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 4976 | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe | C:\$WinREAgent\Backup\location.txt | binary | |
MD5:F937A69F10CD4CA25B3B83EC4D99F0BF | SHA256:1E99A2D7C47CC89A523FBEDEFDF5B7E9FA131CA339110F51F34D5720E8D14235 | |||
| 4976 | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe | C:\$WinREAgent\Rollback.xml | binary | |
MD5:0996C2617D924840B6C43687B42DC919 | SHA256:0E1D9F0B90B45769B9B51A62337ED6928C6944289C6874510477E8B8EC7624EF | |||
| 4976 | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe | C:\$WinREAgent\rollback.xml.bluesky | binary | |
MD5:0996C2617D924840B6C43687B42DC919 | SHA256:0E1D9F0B90B45769B9B51A62337ED6928C6944289C6874510477E8B8EC7624EF | |||
| 4976 | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe | C:\$WinREAgent\Rollback\# DECRYPT FILES BLUESKY #.html | html | |
MD5:24EEC9D30962CDA3EAD9E9C0981936E3 | SHA256:87ABDD6A6FB85A22BAA975562566A3C2BF23A84E2C1D29C8DF32AD36CEABE949 | |||
| 4976 | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe | C:\$WinREAgent\# DECRYPT FILES BLUESKY #.html | html | |
MD5:24EEC9D30962CDA3EAD9E9C0981936E3 | SHA256:87ABDD6A6FB85A22BAA975562566A3C2BF23A84E2C1D29C8DF32AD36CEABE949 | |||
| 4976 | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe | C:\Users\# DECRYPT FILES BLUESKY #.txt | text | |
MD5:F1A7EAB449D77A0CE5179F6481D17ED4 | SHA256:18BDFAF88CF3871D8409908B561E8BAABD63BE2FAC0D99F6723A399A5CAFDEC5 | |||
| 4976 | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe | C:\$WinREAgent\Backup\location.txt.bluesky | binary | |
MD5:F937A69F10CD4CA25B3B83EC4D99F0BF | SHA256:1E99A2D7C47CC89A523FBEDEFDF5B7E9FA131CA339110F51F34D5720E8D14235 | |||
| 4976 | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe | C:\$WinREAgent\Scratch\WimTempPath\# DECRYPT FILES BLUESKY #.txt | text | |
MD5:F1A7EAB449D77A0CE5179F6481D17ED4 | SHA256:18BDFAF88CF3871D8409908B561E8BAABD63BE2FAC0D99F6723A399A5CAFDEC5 | |||
| 4976 | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe | C:\$WinREAgent\Backup\# DECRYPT FILES BLUESKY #.txt | text | |
MD5:F1A7EAB449D77A0CE5179F6481D17ED4 | SHA256:18BDFAF88CF3871D8409908B561E8BAABD63BE2FAC0D99F6723A399A5CAFDEC5 | |||
| 4976 | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe | C:\$WinREAgent\Rollback\# DECRYPT FILES BLUESKY #.txt | text | |
MD5:F1A7EAB449D77A0CE5179F6481D17ED4 | SHA256:18BDFAF88CF3871D8409908B561E8BAABD63BE2FAC0D99F6723A399A5CAFDEC5 | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 23.216.77.15:80 | 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 |
— | — | GET | 200 | 23.216.77.15:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
1128 | SIHClient.exe | GET | 200 | 2.23.246.101:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
1128 | SIHClient.exe | GET | 200 | 2.23.246.101:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
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 |
— | — | 23.216.77.15:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
3216 | svchost.exe | 172.211.123.250:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
6544 | svchost.exe | 20.190.159.0:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
6544 | svchost.exe | 2.17.190.73:80 | ocsp.digicert.com | AKAMAI-AS | DE | whitelisted |
2104 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4976 | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe | 192.168.100.1:445 | — | — | — | unknown |
4976 | 2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef.exe | 192.168.100.2:445 | — | — | — | whitelisted |
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |