Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb8d705f7045ae96…

MALICIOUS

PDF

121.7 KB Created: 2022-07-24 00:34:42 +00:00 Authoring application: nirareny (via PDF Master 1.0.1) First seen: 2026-05-09
MD5: 8260841587af6ebbb4a45e5fcf266956 SHA-1: 34cd880922d662982852d8a307475010f97d1c35 SHA-256: cb8d705f7045ae96665b98541812d5b2625edc4479aacad99727708baed7fd29
224 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0005

Heuristics 7

  • 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.
  • Cracked-software lure uses shortlink/download gateway critical PDF_CRACKED_SOFTWARE_SHORTLINK_LURE
    PDF visible text advertises a crack, serial number, archive, or pirated-software download and pairs it with a shortlink or encoded download gateway. This is a high-confidence social-engineering carrier for unwanted software or droppers; the PDF itself is not a parser exploit.
  • Cracked-software lure uses download-gateway redirectors high PDF_CRACKED_SOFTWARE_REDIRECTOR_LINK_FARM
    PDF contains multiple cracked-software/keygen/serial-key lure links together with long encoded download-gateway URLs or known crack-download redirector hosts. This is stronger than generic piracy vocabulary: the document is an SEO lure that funnels users through redirect/download infrastructure commonly used for adware, unwanted software, or droppers.
  • PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
    PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://dawnloadonline.com/sechio/QXV0b0NBRAQXV/overnighters/pulmocort/=ZG93bmxvYWR8b04yWXpoM01YeDhNVFkxT0RJeE9ETTBOSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.splitted PDF link annotation
    • https://www.theblender.it/autocad-crack-download-10/In PDF document text
    • https://firstlady-realestate.com/2022/07/24/autocad-crack-with-product-key-free-download-for-pc/In PDF document text
    • https://atompublishing.info/wp-content/uploads/2022/07/AutoCAD-16.pdfIn PDF document text
    • http://www.studiofratini.com/wp-content/uploads/2022/07/AutoCAD-81.pdfIn PDF document text
    • https://alafdaljo.com/autocad-crack-with-product-key-free-for-pc-april-2022/In PDF document text
    • https://parsiangroup.ca/2022/07/autocad-free-download-for-windows-updated-2022-2/In PDF document text
    • https://whatshappeningtoday.com/wp-content/uploads/2022/07/AutoCAD-2.pdfIn PDF document text
    • https://biodashofficial.com/autocad-crack-35/In PDF document text
    • https://togetherwearegrand.com/wp-content/uploads/2022/07/AutoCAD-44.pdfIn PDF document text
    • https://clarissaviaggi.com/wp-content/uploads/2022/07/vyrfylo.pdfIn PDF document text
    • http://dealskingdom.com/autocad-23-1-crack-free-mac-win-latest-2022/In PDF document text
    • http://lacartadecervezas.com/?p=6879In PDF document text
    • http://inventnet.net/advert/autocad-20-0-crack-free-download-for-windows-april-2022/In PDF document text
    • http://www.midax.it/registrazione-utenti/In PDF document text
    • http://fiskenaesbaadlaug.dk/?p=6964In PDF document text
    • https://mohacsihasznos.hu/advert/autocad-crack-free-download-4/In PDF document text
    • https://connectingner.com/2022/07/24/autocad-crack-83/In PDF document text
    • https://taavistea.com/wp-content/uploads/2022/07/AutoCAD-26.pdfIn PDF document text
    • https://kivabe.info/wp-content/uploads/2022/07/AutoCAD-97.pdfIn PDF document text
    • https://ksycomputer.com/autocad-2018-22-0-free-download-3264bit-2/In PDF document text
    • http://dawnloadonline.com/sechio/qxv0b0nbraqxv/overnighters/pulmocort/=zg93bmxvywr8b04ywxpom01yedhnvfkxt0rjee9ettboshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.splittedIn PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003a82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A82 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000c26e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC26E 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261