Malicious PDF — malware analysis report

Static analysis result for SHA-256 79c0b0cf160f08e2…

MALICIOUS

PDF

15.5 KB Created: 2020-03-14 00:22:40 +00:00 Authoring application: mPDF 5.7 First seen: 2021-10-11
MD5: 19e4c69f00ca298ef07f88a81282c1f0 SHA-1: 56873165a061625031ee80310d12a3fd67a8fdfc SHA-256: 79c0b0cf160f08e2d5876fdfaae4088cf00ec71642e2f34afa4b961f1ed8bf14
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded URLs pointing to external PDF documents on a single domain, indicative of a link farm or redirection scheme. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of external links suggests an attempt to drive traffic or distribute further content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

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://calistazz.myhome.cx/7864868867864861/BDSM---Natalie-gequ-lt-im-Folterkeller-by-Joe-Gessler.pdf In PDF document text
    • http://calistazz.myhome.cx/7864868866865862/BDSM---Sex-und-Rock-n-Roll-by-Joe-Gessler.pdfIn PDF document text
    • http://calistazz.myhome.cx/7864868867865863/BDSM---Sabsi-abgerichtet-im-Swingerclub-by-Joe-Gessler.pdfIn PDF document text
    • http://calistazz.myhome.cx/5867864866866866/Punished-Properly---Seduction-Spanking-Restraints-BDSM-Erotica-by-BDSM-BDSM.pdfIn PDF document text
    • http://calistazz.myhome.cx/7864868865868868/Statistische-Graphik-by-Gessler.pdfIn PDF document text
    • http://calistazz.myhome.cx/7864868866865867/Die-Behandlung-Von-Herzrhythmusstoerungen-Bei-Nierenkranken-by-U-Gessler.pdfIn PDF document text
    • http://calistazz.myhome.cx/7864868866866863/Hawaii-Isles-of-Enchantment-by-Clifford-Gessler.pdfIn PDF document text
    • http://calistazz.myhome.cx/7864868865868869/Very-California-Travels-Through-the-Golden-State-by-Diana-Hollingsworth-Gessler.pdfIn PDF document text
    • http://calistazz.myhome.cx/7864868868865861/Ijrvet-International-Journal-for-Research-in-Vocational-Education-and-Training-Yearbook-2017-by-Michael-Gessler.pdfIn PDF document text
    • http://calistazz.myhome.cx/5867864867865863/C-is-for-BDSM-Checklist-3-by-L-DuBois.pdfIn PDF document text
    • http://calistazz.myhome.cx/5867864866867860/The-ABC-s-of-BDSM-by-Dama-deNoche.pdfIn PDF document text
    • http://calistazz.myhome.cx/5867864867865861/Everything-BDSM-by-Abbey-Pointer.pdfIn PDF document text
    • http://calistazz.myhome.cx/7861869867865860/Der-Job---Eins-BDSM-Roman-by-Mirador.pdfIn PDF document text
    • http://calistazz.myhome.cx/5867864868862864/BDSM-Trilogy-by-Elaine-Shuel.pdfIn PDF document text
    • http://calistazz.myhome.cx/1861869864860861862/Die-Sex-Entf-hrung-Gay-BDSM-by-Marc-Andr-.pdfIn PDF document text
    • http://calistazz.myhome.cx/5867864868862869/BDSM-Lifestyles-by-John--Smith.pdfIn PDF document text
    • http://calistazz.myhome.cx/1867867866864866/BDSM-Billionaire-by-Lady-Aingealicia.pdfIn PDF document text
    • http://calistazz.myhome.cx/5867864866868863/Keep-Me-A-BDSM-Romance-by-Cate-Bellerose.pdfIn PDF document text
    • http://calistazz.myhome.cx/4864869865869860/BDSM-Volume-1-by-The-Grey-Knight.pdfIn PDF document text
    • http://calistazz.myhome.cx/1860862861867865868/Die-Sklaven-BDSM-by-Lola-Hammerfeld.pdfIn PDF document text

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