Malicious PDF — malware analysis report

Static analysis result for SHA-256 8072af1a0e4b016b…

MALICIOUS

PDF

20.9 KB Created: 2019-05-04 13:57:32 +01:00 Authoring application: mPDF 5.7
MD5: a13c18080423a35b4fe1228c760a17b3 SHA-1: 7dd6a42401b21c69f2509f70ead2c114092d79ae SHA-256: 8072af1a0e4b016b36eab905abbdaeb21a87f450b396fb112ede1046ef6c29fe
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. While the specific intent of the links is unclear due to their benign reputation, the sheer volume and the critical heuristic firing suggest a malicious purpose, likely to redirect users to harmful sites or to improve the ranking of malicious content through link farming.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9904

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/1090097095091096092/Die-Messianische-Weissagung-Und-Ihre-Erf-Llung-Mit-Besonderer-Beziehung-Auf-Ihre-Behandlung-in-Der-Schule-by-Julius-Richter.pdf
    • http://loaminoo.linkpc.net/1090097095091096094/Die-Messianische-Weissagung-Und-Ihre-Erf-llung-Mit-Besonderer-Beziehung-Auf-Ihre-Behandlung-in-Der-Schule-by-Julius-Richter.pdf
    • http://loaminoo.linkpc.net/1090095095092099092/Die-Deutschstunde-von-Siegfried-Lenz-und-ihre-bersetzerische-Behandlung-im-Translat-von-Jes-s-Ruiz-unter-besonderer-Ber-cksichtigung-der-Aspekte-Kunst-und-Landschaft-by-Vicente-Berezo.pdf
    • http://loaminoo.linkpc.net/1090092096098094092/Ueberschattete-Kindheit-Im-Lichte-Des-Filmes-Sexuelle-Ausbeutung-Und-Ihre-Darstellung-in-Filmdokumenten-Mit-Besonderer-Beruecksichtigung-Von-Knaben-by-Irina-Kammerer.pdf
    • http://loaminoo.linkpc.net/1091097096090091094/Lassen-Sie-Ihre-Fettdepots-brennen-in-21-Tagen-by-J-Grzybowski.pdf
    • http://loaminoo.linkpc.net/1091091090098090092/Fursten-Und-Ihre-Residenzen-in-Thuringen-by-Heiko-Lass.pdf
    • http://loaminoo.linkpc.net/1091091096098090093/Die-Biene-Maja-und-ihre-Abenteuer-by-Waldemar-Bonsels.pdf
    • http://loaminoo.linkpc.net/9097096095093094/Isl-ndische-Pferdenamen-und-ihre-Bedeutung-by-Fenja-Snaehvit.pdf
    • http://loaminoo.linkpc.net/8096091092096092/Superimmun-So-Maximieren-Sie-Ihre-Abwehrkr-fte-by-Joel-Fuhrman.pdf
    • http://loaminoo.linkpc.net/9098095098098095/Die-Zeit-schl-gt-ihre-Ratten-tot-by-Tino-Hemmann.pdf
    • http://loaminoo.linkpc.net/9091090096096095/Occupy-in-Deutschland-Die-Protestbewegung-Und-Ihre-Akteure-by-Lars-Geiges.pdf
    • http://loaminoo.linkpc.net/1091098091097096091/Cora-und-ihre-zauberhaften-Erlebnisse---Teil-3---Gutenachtgeschichten-by-Kigunage.pdf
    • http://loaminoo.linkpc.net/9099090095099097/Schicksalswege-in-der-Hallertau-und-ihre-besonderen-Menschen-by-Harry-Schneider.pdf
    • http://loaminoo.linkpc.net/9095092092094099/M-rdermann-Ich-verteidige-Menschen-nicht-ihre-Taten-by-Uwe-Krechel.pdf
    • http://loaminoo.linkpc.net/1091098097099093092/Wenn-Tiere-ihre-Menschen-spiegeln-by-Rolf-Kamphausen.pdf
    • http://loaminoo.linkpc.net/6097096090098091/Tante-Will-Meinen-Schwanz-In-Ihre-Muschi-by-Priska-Meier.pdf
    • http://loaminoo.linkpc.net/1090092097090093094/Prinzessin-Emmy-und-ihre-Pferde---Trubel-im-Klassenzimmer-by-Florentine-Wolf.pdf
    • http://loaminoo.linkpc.net/8096091090091099/Die-geheime-Benedict-Gesellschaft-und-ihre-Reise-ins-Abenteuer-by-Trenton-Lee-Stewart.pdf
    • http://loaminoo.linkpc.net/3099092095091/Fr-ulein-Pop-und-Mrs-Up-und-ihre-gro-e-Reise-durchs-Papierland-by-Antje-von-Stemm.pdf
    • http://loaminoo.linkpc.net/1091092099092090096/So-retten-Sie-Ihre-Ehe-So-entfachen-Sie-den-Funken-der-Liebe-erneut-by-Klos-J-rgen.pdf
    • http://loaminoo.linkpc.net/1090092096098094092/Ueberschattete-Kindheit-Im-Lichte-Des-Filmes-Sexuelle-Ausbeutung-Und-Ihre-Darste

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