Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceb5e15e9f85344c…

MALICIOUS

PDF

15.7 KB Created: 2019-04-30 05:15:03 +01:00 Authoring application: mPDF 5.7
MD5: b8ec10e3747e22f710d89e0bb191f881 SHA-1: cf9454a4867878dee38239d6128b6186694cc3c5 SHA-256: ceb5e15e9f85344c8d80f900bbef318b55930ae87a405c7aaee3623b0c695807
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded URLs pointing to external PDF files, many of which are hosted on the domain 'loaminoo.linkpc.net'. This suggests a link farm or redirection tactic designed to lead users to potentially malicious content, rather than delivering a direct payload within this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://loaminoo.linkpc.net/8099091095099098/A-Deadly-Reunion-Brian-McReynolds-2-by-Brian-Richardson.pdf
    • http://loaminoo.linkpc.net/8099091095099099/A-Deadly-Game-Brian-McReynolds-3-by-Brian-Richardson.pdf
    • http://loaminoo.linkpc.net/2099098094099/Deadly-Storm-by-Brian-Michael-Bendis.pdf
    • http://loaminoo.linkpc.net/4091092091099097/Brian-s-Hunt-Brian-s-Saga-5-by-Gary-Paulsen.pdf
    • http://loaminoo.linkpc.net/7098094098098/Brian-s-Return-Brian-s-Saga-4-by-Gary-Paulsen.pdf
    • http://loaminoo.linkpc.net/4095099093090/Minnesota-State-of-Wonders-A-Photo-Exploration-by-Brian-Peterson-by-Brian-Peterson.pdf
    • http://loaminoo.linkpc.net/3093092098096091/The-Midnight-Court-A-New-Translation-Of-quot-C-irt-An-Mhe-n-O-che-quot-By-Brian-Merriman-by-Brian-Merriman.pdf
    • http://loaminoo.linkpc.net/1098096094097092/Brian-Aldiss-Presents-Britain-s-Leading-SF-Exponent-Presents-his-Favourite-Stories-by-Brian-W-Aldiss.pdf
    • http://loaminoo.linkpc.net/3090094098093091/Ultimate-Comics-Spider-Man-by-Brian-Michael-Bendis-Volume-2-by-Brian-Michael-Bendis.pdf
    • http://loaminoo.linkpc.net/3090095098093096/Ultimate-Comics-Spider-Man-by-Brian-Michael-Bendis-Volume-3-by-Brian-Michael-Bendis.pdf
    • http://loaminoo.linkpc.net/8099091096090090/James-Clark-McReynolds-Defender-of-the-Constitution-by-Ann-McReynolds-Bush.pdf
    • http://loaminoo.linkpc.net/4091092091097091/You-Don-t-Know-About-Me-by-Brian-Meehl.pdf
    • http://loaminoo.linkpc.net/1092099097094098/Ex-mas-by-Kate-Brian.pdf
    • http://loaminoo.linkpc.net/4090094094092099/Saga-18-by-Brian-K-Vaughan.pdf
    • http://loaminoo.linkpc.net/6099097095099/Locomotive-by-Brian-Floca.pdf
    • http://loaminoo.linkpc.net/2096092091092/The-Best-of-Crank-by-Brian-Cholfin.pdf
    • http://loaminoo.linkpc.net/4090095090093095/Private-by-Kate-Brian.pdf
    • http://loaminoo.linkpc.net/1091091097096097/When-Mr-Dog-Bites-by-Brian-Conaghan.pdf
    • http://loaminoo.linkpc.net/6092099099092093/The-Brontes-by-Brian-Wilks.pdf
    • http://loaminoo.linkpc.net/2096098093099098/Stuffed-by-Brian-M-Wiprud.pdf
    • http://loaminoo.linkpc.net/1098096094097092/Brian-Aldiss-Presents-Britain-s-Leading-SF-Exponent-Presents-his-Favourit

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