Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af06bc8e180ce6b…

MALICIOUS

PDF

310.5 KB Created: 2021-08-02 11:52:33 +02:00 Authoring application: freefior (via PDF Master 1.0.1) First seen: 2026-06-05
MD5: 52c6120f29a6a0ee439971853ae13a15 SHA-1: 93e3f0979ab4f9ef9fe978b3a2e34473c3ef9264 SHA-256: 4af06bc8e180ce6b8658d8d632aa1cbaf018debba4e3c910e39e5750940774e1
84 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0599

Heuristics 5

  • PDF links to disposable redirector campaign host medium PDF_DISPOSABLE_REDIRECTOR_CAMPAIGN
    PDF's outbound link points to a throwaway redirector domain that recurs as the sole redirect across a large family of otherwise unrelated spam PDFs (movie-piracy, affiliate, and viral-link lures). These domains appear on no reputable list and exist only to funnel openers into malvertising / scam / download chains.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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 https://fancli.com/20yr62 PDF link annotation
    • https://hardplagearon.weebly.com/uploads/1/3/8/5/138576997/lovely-shots--25-miss-big-oranges-dscf1489-imgsrcru.pdfIn PDF document text
    • https://naltechksleepxab.weebly.com/uploads/1/3/8/5/138586845/ready-for-hq--dsc00893-imgsrcru.pdfIn PDF document text
    • https://licountuide.weebly.com/uploads/1/3/8/5/138582150/rb-leipzig-vs-manchester-united-fc-link-6.pdfIn PDF document text
    • https://tiurll.com/1p7ljbIn PDF document text
    • https://geags.com/1xcw63In PDF document text
    • https://www.elsolucionario.org/circuitos-y-electronica/control/In PDF document text
    • https://www.elsolucionario.org/mecanica-fluidos-aplicaciones-ingenieria-joseph-bIn PDF document text
    • https://www.elsolucionario.org/mecatronica-w-bolton-2da-In PDF document text
    • https://michaeldalebernard.ning.com/photo/albums/vipbox-new-orleans-saints-vs-tampa-bay-buccaneers-streamingIn PDF document text
    • https://trello.com/c/pLJKmoDE/103-you-searched-for-kyle-beats-mac-torrentsIn PDF document text
    • https://social-shopping.ning.com/photo/albums/alluring-alana-adams-a50fe1db-5ce2-4102-8ae7-b9e1e3cc-imgsrc-ruIn PDF document text
    • https://hufdustserpe.localinfo.jp/posts/19901317In PDF document text
    • https://bayareaspringers.ning.com/photo/albums/lainey-13-lainey17-imgsrc-ruIn PDF document text
    • http://sensayudo.tistory.com/5In PDF document text
    • https://rapifiram.amebaownd.com/posts/19901318In 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002d73.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2D73 122148 bytes
SHA-256: be6ff0fed96a450171b5963554133f75eea9f835b6294fbaaf4f984508d4d290
font_01_sfnt_off0000e076.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE076 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54