Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f8160b9d8d65b0e…

MALICIOUS

PDF

17.0 KB Created: 2020-02-14 01:09:16 +00:00 Authoring application: mPDF 5.7
MD5: cebdec42ff58295a6d48259a223ffb99 SHA-1: 035ab29030cd06295108fa4b7be31a10a2358c58 SHA-256: 5f8160b9d8d65b0ee2b2bd1e60daf7c3a36f5e5f2882d4e4fb8a2fc44d68a91d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or SEO manipulation tactic. The ML classifier also flagged this PDF as malicious with high confidence. The embedded URLs likely serve to redirect users to potentially malicious content or to improve search engine rankings for malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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://owlaokopdf.myhome.cx/481688163816381698166/The-Sky-and-the-Sea-Poetry-and-Prose-by-Kevin-J-Johnson.pdf
    • http://owlaokopdf.myhome.cx/381678165816081628162/Poetry-and-Prose-by-Heinrich-Heine.pdf
    • http://owlaokopdf.myhome.cx/481658169816881688161/Poetry-and-Prose-by-Heinrich-Heine.pdf
    • http://owlaokopdf.myhome.cx/1816181628162816981608166/Selected-Poetry-and-Prose-by-Ilse-Aichinger.pdf
    • http://owlaokopdf.myhome.cx/281608165816481658169/Reruns-Poetry-and-Prose-by-D-Marie-Fitzgerald.pdf
    • http://owlaokopdf.myhome.cx/1816181608166816781628169/American-Poetry-and-Prose-by-Norman-Foerster.pdf
    • http://owlaokopdf.myhome.cx/68163816981638160/Collected-Poetry-amp-Prose-by-Wallace-Stevens.pdf
    • http://owlaokopdf.myhome.cx/281658164816181688162/Civil-War-Poetry-and-Prose-by-Walt-Whitman.pdf
    • http://owlaokopdf.myhome.cx/781648169816181688169/Pot-Pourri-A-Selection-of-Poetry-and-Prose-by-Pam-Le-Tissier.pdf
    • http://owlaokopdf.myhome.cx/1816181658164816981678169/Lost-A-Collection-of-Poetry-and-Prose-by-Cristina-Filomena.pdf
    • http://owlaokopdf.myhome.cx/881608168816381668169/Dimensions-of-Midnight-Poetry-and-Prose-by-Cecil-Hemley.pdf
    • http://owlaokopdf.myhome.cx/381688161816281638166/The-Loyal-Opposition-Environmental-Prose-and-Poetry-by-Keith-Ainsworth.pdf
    • http://owlaokopdf.myhome.cx/181618161816281688167/The-Latin-Deli-Prose-and-Poetry-by-Judith-Ortiz-Cofer.pdf
    • http://owlaokopdf.myhome.cx/1816181618167816781618166/Neon-Soul-A-Collection-of-Poetry-and-Prose-by-Alexandra-Elle.pdf
    • http://owlaokopdf.myhome.cx/881648166816981698167/The-Wide-Open-Prose-Poetry-and-Photographs-of-the-Prairie-by-Annick-Smith.pdf
    • http://owlaokopdf.myhome.cx/881618168816981618165/27-Views-of-Charlotte-The-Queen-City-in-Prose-amp-Poetry-by-Jack-Claiborne.pdf
    • http://owlaokopdf.myhome.cx/681668161816081668162/Aesthetes-and-Decadents-of-the-1890-s-An-Anthology-of-British-Poetry-and-Prose-by-Karl-E-Beckson.pdf
    • http://owlaokopdf.myhome.cx/881618166816981648164/The-Purity-of-Jazz-and-Speckled-Trout-and-Other-Prose-and-Poetry-by-James-Robert-Campbell.pdf
    • http://owlaokopdf.myhome.cx/681688160816681698161/Poetry-and-Designs-Authoritative-Texts-Illuminations-in-Color-and-Monochrome-Related-Prose-Criticism-by-William-Blake.pdf
    • http://owlaokopdf.myhome.cx/981618165816881648160/Bertolt-Brecht-Poetry-and-Prose-by-Bertolt-Brecht.pdf

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