Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f1a0d0554e82507…

MALICIOUS

PDF

28.5 KB Created: 2020-03-20 16:13:55 +00:00 Authoring application: mPDF 5.7
MD5: 11fc00f624bfa6ffc8a932f86cdb2b47 SHA-1: 4bf9332d95727fee06ab9fd5de6076dca18ad4c9 SHA-256: 5f1a0d0554e825078257a5ee5abcf3b9c72c207e3f94ec2576c175123e7003f3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the embedded URLs suggest a malicious intent to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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://eascasas.myhome.cx/8aa6aa2aa5aa2aa5/Der-Struwwelpeter-und-andere-Geschichten-by-Heinrich-Hoffmann.pdf
    • http://eascasas.myhome.cx/8aa6aa2aa6aa3aa5/Die-Klassiker---Der-Struwwelpeter-Max-und-Moritz-und-die-Struwwelliese-by-Hoffmann-Heinrich.pdf
    • http://eascasas.myhome.cx/9aa9aa0aa0aa4aa5/Der-Struwwelpeter-Gesamtausgabe-illustriert-M-rchen-und-Kinderb-cher-19-by-Heinrich-Hoffmann.pdf
    • http://eascasas.myhome.cx/8aa6aa2aa5aa1aa0/Slovenly-Kate-and-Other-Stories-From-the-Struwwelpeter-Library-by-Heinrich-Hoffmann.pdf
    • http://eascasas.myhome.cx/8aa6aa2aa5aa5aa8/Struwwelpeter-or-Merry-Rhymes-and-Funny-Pictures-by-Heinrich-Hoffmann.pdf
    • http://eascasas.myhome.cx/1aa1aa8aa6aa3aa3aa3/Der-Struwwelpeter-Bilderbuch-Klassiker-mit-den-Original-Illustrationen-Eines-der-ber-hmtesten-Kinderb-cher-Deutschlands-by-Heinrich-Hoffmann.pdf
    • http://eascasas.myhome.cx/8aa6aa2aa4aa5aa0/Struwwelpeter-Merry-Stories-and-Funny-Pictures-by-Heinrich-Hoffman.pdf
    • http://eascasas.myhome.cx/1aa0aa6aa2aa1aa0aa0/Der-Berliner-Struppelpeter-by-Heinrich-Hoffmann.pdf
    • http://eascasas.myhome.cx/9aa6aa5aa0aa1aa8/Herzog-Aquitanien-Richard-Lowenherz-Heinrich-IV-Heinrich-V-John-of-Gaunt-1-Duke-of-Lancaster-Heinrich-VI-Eduard-III-Ludwig-VII-by-Quelle-Wikipedia.pdf
    • http://eascasas.myhome.cx/9aa0aa8aa5aa3aa4/Geheimnisse-der-Steinzeit-mit-Blick-auf-die-Evolution-des-Menschen-Begleitband-zur-Ausstellung-in-Lampertheim-aus-der-Sammlung-Emil-Hoffmann-by-Emil-Hoffmann.pdf
    • http://eascasas.myhome.cx/1aa1aa4aa5aa4aa9aa3/Heinrich-Schreyber-Aus-Erfurt-Genannt-Grammateus-Festschrift-Zum-500-Geburtstag-by-Heinrich-Schreiber.pdf
    • http://eascasas.myhome.cx/1aa0aa7aa7aa7aa9aa5/Vorbericht-Und-Inhaltsverzeichnis-Zu-Heinrich-Laubes-Gesammelten-Werken-In-F-nfzig-B-nden-by-Heinrich-Laube.pdf
    • http://eascasas.myhome.cx/8aa6aa9aa7aa0aa8/K-nig-Heinrich-der-vierte-Der-Zweyte-Theil-der-seinen-Tod-und-die-Cr-nung-von-Heinrich-dem-f-nften-enth-lt-by-William-Shakespeare.pdf
    • http://eascasas.myhome.cx/9aa3aa9aa7aa7aa8/Sieben-Jahre-In-Tibet-Mit-Heinrich-Harrers-Rede-Vor-Der-Royal-Geographical-Society-2002-by-Heinrich-Harrer.pdf
    • http://eascasas.myhome.cx/6aa9aa2aa0aa4/Tales-of-E-T-A-Hoffmann-by-E-T-A-Hoffmann.pdf
    • http://eascasas.myhome.cx/1aa1aa4aa9aa1aa9aa2/Der-Hexenhammer-Ein-Werk-zur-Legitimation-der-Hexenverfolgung-das-der-Dominikaner-Heinrich-Kramer-lat-Henricus-Institoris-im-Jahre-1486-ver-ffentlichte-by-Heinrich-Institoris.pdf
    • http://eascasas.myhome.cx/1aa1aa2aa5aa4aa9aa6/Der-Geitzige-Ein-Lustspiel-in-F-nf-Aufz-gen-Nach-Moliere-F-r-Die-Deutsche-B-hne-Von-Heinrich-Zschokke-by-Heinrich-Zschokke.pdf
    • http://eascasas.myhome.cx/1aa1aa6aa2aa7aa7aa5/Dr-Heinrich-M-llers-Weil-Seniors-Und-Superintendenten-Zu-Rostock-Kreuz--Buss--Und-Betschule-Wahrer-Christen-In-Zwei-Und-Zwanzig-Beitrachtungen-Der-Gemeine-Gottes-Zu-St-Marien-in-Den-ffentlichen-Betstunden-Vorgestellt-by-Heinrich-Muller.pdf
    • http://eascasas.myhome.cx/2aa6aa3aa9aa8aa7/The-Complete-Poems-of-Heinrich-Heine-A-Modern-English-Version-by-Heinrich-Heine.pdf
    • http://eascasas.myhome.cx/8aa6aa2aa4aa4aa3/Der-Anti-Struwwelpeter-by-F-K-Waechter.pdf

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