SUSPICIOUS — ._extension.js
SUSPICIOUS — ._extension.js is a unknown sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (65/100). 0 of 53 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
01eb8189a6fbaba16189473294daf816c97a69caf97861ff8c537fed54d59591 - SHA-1:
16484a621945216fae345d275fda6249c51fe00a - MD5:
dec09a9a3e236008c5061a42d4409c4d - ssdeep:
3:PFoESNt/FPl2XjdlW3//lllNvXllel96LEZWxIUcll0tlRl:PgG0/KIIUc4lRl - TLSH:
T1430C92E2A2F2209FCFE40109D196841DCA2243E958A89A60542A14A685E52278E14322 - Submitted as: ._extension.js
- File type: unknown · Size: 176 bytes
- Verdict: suspicious (65/100)
Detections (0 of 53 engines)
No engine flagged this sample.
MITRE ATT&CK
Why this verdict
The suspicious score of 65/100 is the fusion of 3 weighted signals:
- Memory forensics: 2 finding(s), e.g. SSDT hook (rule
windows.ssdt.SSDT) - memory signal, weight 0.50, confidence 0.85 - Contacted 20 external host(s) at runtime (15 HTTP) - network signal, weight 0.40, confidence 0.80
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
343 behavior events · 1 ATT&CK techniques · 0 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
- 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
- officeclient.microsoft.com
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/9a8a705c-852d-4d18-b32a-ee1d872f4bd9/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/9a8a705c-852d-4d18-b32a-ee1d872f4bd9?P1=1787944043&P2=404&P3=2&P4=Z1zo6Mlam1OXKzZQImV72zvZKHhKzdMPeV07PAbjz5n4xtOyVj%2b7lpr5fJa8qKgh1cpv9FJbRGbneoIc7PpKoA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 20.42.65.91
- 4.230.171.124
- 52.230.59.222
- 4.247.188.224
- 74.178.76.128
- 4.150.223.101
- 20.165.94.54
- 20.236.44.162
- 52.123.128.14
- 52.123.129.14
- 4.150.223.106
- 52.123.252.240
- 203.26.79.13
- 135.234.160.245
- 4.207.44.67
- 72.145.35.110
- 20.165.94.46
- 52.110.12.50
- 52.148.114.188
- 52.110.12.22
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report