MALICIOUS — ff1aea93958a85d5a4008afaa57d606b41812e960a8d75206c895416ed4c2e5a
MALICIOUS — ff1aea93958a85d5a4008afaa57d606b41812e960a8d75206c895416ed4c2e5a is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the VBChinky family. 4 of 55 detection engines flagged it, exhibiting 5 ATT&CK techniques.
Identification
- SHA-256:
ff1aea93958a85d5a4008afaa57d606b41812e960a8d75206c895416ed4c2e5a - SHA-1:
d3fb5819b7fefb7763095e9880c7ccfe8bcd39f0 - MD5:
cbf961fe58119ca5c95fd76f90e1f323 - imphash:
74a700ac5b845069d415423354fd8c51 - ssdeep:
768:j6Xw1owYOWJOaoUJdWqXfLbjKevUo+Pu9Oty/N/X+YVhP5itZfP6v+XymJ:GXw1owc9fThvUo+EEmNfP8Sv+HJ - TLSH:
T1B9371DA7B768C9A2C4F1EA5F0C093FAD608C47C83B2B403E16E9550A6DD65F3B12491D - Submitted as: ff1aea93958a85d5a4008afaa57d606b41812e960a8d75206c895416ed4c2e5a
- File type: pe · Size: 73728 bytes
- Verdict: malicious (99/100) · Family: VBChinky
Detections (4 of 55 engines)
- ClamAV (daily): Html.Trojan.VBChinky-3
- Microsoft Defender: Worm:Win32/Vobfus.AC
- Emsisoft (Emergency Kit): Gen:Trojan.Chinky.2
- Kaspersky (KVRT): Worm.Win32.Vobfus.exhd
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 9 weighted signals:
- ClamAV (daily) flagged Html.Trojan.VBChinky-3 (rule
Html.Trojan.VBChinky-3) - engine signal, weight 0.90, confidence 0.95 - 1 behavioral detection(s): Registry Run Key Persistence [high] (rule
tl-run-key) - dynamic signal, weight 0.60, confidence 0.90 - Observed at runtime: Registry Run Key Persistence (T1547.001) (rule
Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 24 external host(s) at runtime (26 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- enumerate processes (rule
enumerate processes) - capa signal, weight 0.20, confidence 0.60 - Dropped 1 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
49856 behavior events · 3 ATT&CK techniques · 4 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- ns1.thepicturehut.net
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
Dropped files
- C:\Users\analyst\coeluw.exe -
61e79a71eeacffe266bd4afda4cb976cd5d07ce45d8e34ea0d1329266c33ea3a - 175341e0efa4cdb2362f9d153c6140a53d7d37190d411685befd63448e2d8dcd -
175341e0efa4cdb2362f9d153c6140a53d7d37190d411685befd63448e2d8dcd - 306d5d75c6e4d6ba19995a2f4760daf015d22868ffec01a485ede38ffd6df78d -
306d5d75c6e4d6ba19995a2f4760daf015d22868ffec01a485ede38ffd6df78d - 0378532839eef01adaef6eedb5d0351ac0aced9362460122e99c30edbefe4bfd -
0378532839eef01adaef6eedb5d0351ac0aced9362460122e99c30edbefe4bfd
Embedded URLs
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/fa5c4269-9d03-4a47-8d97-be6931f0b22c/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/fa5c4269-9d03-4a47-8d97-be6931f0b22c?P1=1787883975&P2=404&P3=2&P4=N%2fMJDOs5ZtE3IY9aARftErVe2JD6HNCa24zcQmloOAjyjkNyTQWqrHQiwSuMlE2W0vidV6beUjEBgsFzf0BnTg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787884019&P2=404&P3=2&P4=OdpP8VmP11VzjirqtmmfHktjNPKHh2aQap%2biUci%2fTUxXkTZ4qKN0ux3rz%2fvpaiPMw6K9QBTo%2f%2bVRtrG%2fkkrb7g%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5?P1=1787280696&P2=404&P3=2&P4=GK8Vg6Te1rnCTBtTzF9VWvn3bjZ%2bgAJTaCcQQaFrQJrtE60Np7pklmnd9BhaWv3dxRepRd93l9jtpj2P5Za5KA%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/b56480f9-8215-4de7-ba7e-8e690088d21d/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/b56480f9-8215-4de7-ba7e-8e690088d21d?P1=1787280264&P2=404&P3=2&P4=TW1aBA2V%2f6Etr3d2mlVT0plQftUFMt5wkPLR9r2hDUAyFrrubYTHu7jPbEVyUyI%2brpuup1Rvq2TWVXh2oC%2bSlw%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- ns1.thepicturehut.net
Embedded IP addresses
- 13.89.179.12
- 85.210.196.11
- 4.230.171.124
- 52.253.84.76
- 74.179.77.204
- 135.233.95.135
- 20.42.65.88
- 20.236.44.162
- 52.123.129.14
- 52.123.128.14
- 20.42.65.85
- 203.26.79.13
- 135.233.45.222
- 135.233.95.80
- 172.178.240.161
- 52.148.114.188
- 72.153.5.137
- 135.234.160.245
- 4.150.223.112
- 4.209.250.170
- 52.178.17.234
- 40.79.150.122
- 52.110.12.20
- 52.110.12.48
More VBChinky samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report