Malicious PDF — malware analysis report

Static analysis result for SHA-256 901090629d8b702a…

MALICIOUS

PDF

19.6 KB Created: 2019-05-07 04:35:33 +01:00 Authoring application: mPDF 5.7 First seen: 2021-06-17
MD5: 54edf06d8bdf16881ab4d118e5b5c90c SHA-1: 2af67a72a19572a95fd289552ab32be6946d946a SHA-256: 901090629d8b702a1ac71433e1f521f289e3c358861d6369885a2eabaf5f6cea
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified as a link farm, which is a common technique for distributing malicious content. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the presence of numerous links suggests an attempt to redirect users to malicious sites, likely for downloading further payloads or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

Heuristics 3

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://muicuiu.dumb1.com/1a01a02a08a03a04a04/Elend-Eine-Reise-in-den-Wahnsinn-by-David-L-gler.pdf In PDF document text
    • http://muicuiu.dumb1.com/1a00a04a02a01a06a00/Eine-gef-hrliche-Reise---Freunde-in-Not-by-David-Schweig.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a07a03a09a06a04/Ich-m-chte-eine-Pampelsine-Der-t-gliche-Wahnsinn-mit-Demenz-und-anderen-T-cken-by-Lotti-Beitz.pdfIn PDF document text
    • http://muicuiu.dumb1.com/8a06a05a07a06a00/Heisskalte-Staubfunken-Eine-abenteuerliche-Reise-by-J-Renner.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a08a07a06a08a04/Rund-um-den-Pazifik-Eine-Reise-in-732-Tagen-by-Peter-Faust.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a09a02a08a07a03/Die-Nacht---Reise-in-eine-verschwindende-Welt-by-Paul-Bogard.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a03a05a07a06a09/Herzklopfen-in-Nimmerland-Eine-zauberhafte-Reise-1-by-Anna-Katmore.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a07a06a06a00a03/Confusa-Desio-Eine-Reise-in-Abschweifungen-by-Rosetta-Froncillo.pdfIn PDF document text
    • http://muicuiu.dumb1.com/9a05a00a01a00a09/Leben-ist-eine-Reise-die-heimw-rts-f-hrt-by-Florian-Wolf.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a00a00a04a01a04/Barabbas-Eine-Reise-zur-ck-zu-den-Wurzeln-by-Sabina-Ramos.pdfIn PDF document text
    • http://muicuiu.dumb1.com/8a06a08a09a02a00/Setz-die-Segel-Eine-spirituelle-Reise-in-31-Tagen-by-Birgit-Aurell.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a01a03a04a09a05/Die-Reise-zum-ersten-Kuss-Eine-Kosovarin-in-Kreuzberg-by-Arta-Ramadani.pdfIn PDF document text
    • http://muicuiu.dumb1.com/9a01a07a07a02a08/Tr-ume-Eine-Reise-in-unsere-innere-Wirklichkeit-by-Stefan-Klein.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a01a01a07a02a07a07/Fighter-Wing-Eine-Reise-In-Die-Welt-Der-Modernen-Kampfflugzeuge-by-Tom-Clancy.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a01a07a07a06a03/Letzten-Sommer-In-Deutschland-Eine-Romantische-Reise-by-Irina-Liebmann.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a06a02a03a06a01/Ich-trinke-den-Wind-Eine-ungew-hnliche-Reise-durch-den-Sudan-by-Gesine-Auffenberg.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a01a06a06a02a03a05/Kindergedichte-eine-Reise-durch-die-Nacht-in-geheimnisvollen-Bildern-by-Christian-Morgenstern.pdfIn PDF document text
    • http://muicuiu.dumb1.com/9a00a05a06a07a06/Wale-und-Delfine---Eine-emotionale-Reise-in-die-Welt-der-sanften-Riesen-by-Isabelle-Groc.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a01a08a03a06a07/Ich-und-Franziskus-Eine-moderne-Reise-in-den-Fu-tapfen-des-Heiligen-Franz-von-Assisi-by-Ian-Morgan-Cron.pdfIn PDF document text
    • http://muicuiu.dumb1.com/9a07a03a06a02a07/Fremd-in-ihrem-Land-Eine-Reise-ins-Herz-der-amerikanischen-Rechten-by-Arlie-Russell-Hochschild.pdfIn PDF document text

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