Malicious PDF — malware analysis report

Static analysis result for SHA-256 20520186320529ed…

MALICIOUS

PDF

128.0 KB Created: 2022-07-27 02:11:48 +00:00 Authoring application: felyhayn (via PDF Master 1.0.1) First seen: 2026-07-19
MD5: 0634a6c42a8e791fa7566e6d1f8d1acb SHA-1: 59afc54fd70b7a67492a3ac1bdd11dd9d7aaa27b SHA-256: 20520186320529edf9e8fa81e701d62bf3ef66ba7c560b0da326a44643cad77b
174 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0013

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • PDF links to a cracked-software download doorway (base64-obfuscated) high PDF_CRACKED_SOFTWARE_DOWNLOAD_DOORWAY
    PDF's embedded link hides a pirated-software title as a base64 blob inside the URL path/query (and/or carries the ``download|`` doorway-template marker), rather than in visible text. This is a TCPDF-generated SEO doorway that ranks for software-piracy searches and funnels users to fake 'crack/keygen' download pages distributing adware, potentially-unwanted programs, or droppers. The base64 encoding is deliberate obfuscation to evade plaintext lure rules; the PDF itself carries no parser exploit — the risk is the linked crack-download destination.
  • 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://emailgoal.com/arizonacommunity.haryana?&mainmuscle=strain&ZG93bmxvYWR8R3Q0TW5acllueDhNVFkxT0RJeE9UUTNNM3g4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA=panwar&szczerbiak=QmlsbGlvbnMgU2Vhc29uIDEgQ29tcGxldGUgVG9ycmVudCBFWlRWQml PDF link annotation
    • http://findmallorca.com/ansys-products-v170-win64-isossqtorrent-new/In PDF document text
    • https://miniwho.com/wp-content/uploads/2022/07/Codigos_De_Activacion_Del_Presto_101432-1.pdfIn PDF document text
    • https://futurestrongacademy.com/wp-content/uploads/2022/07/GMT_MAX_ORG_The_Crew_Crack_V1_0_msil_propia_2017_Gawad_Mater.pdfIn PDF document text
    • https://lockdownfactor.com/wp-content/uploads/2022/07/ATRIS_Stahlgruber_Technik_012016_HOT.pdfIn PDF document text
    • https://canariasenvivo.com/wp-content/uploads/2022/07/Autodesk_3ds_Max_2014_Product_Key_And_Serial_149.pdfIn PDF document text
    • http://raga-e-store.com/kunii-levenspiel-fluidization-engineering-free-download-bestzip/In PDF document text
    • https://biodashofficial.com/wp-content/uploads/2022/07/miguglen.pdfIn PDF document text
    • http://eafuerteventura.com/?p=42852In PDF document text
    • https://amplefair.com/workplace-2013-2019-c2r-set-up-lite-v6-4-1-1-ratiborus-obtain-best/In PDF document text
    • https://nnewi.info/wp-content/uploads/2022/07/kanels-1.pdfIn PDF document text
    • https://youdocz.com/wp-content/uploads/2022/07/OkJaanumoviedownload720pmovies.pdfIn PDF document text
    • http://pacificgoods.net/wp-content/uploads/2022/07/bommarilluhindidubbedmoviedownload.pdfIn PDF document text
    • https://4w15.com/hack-adobe-acrobat-xi-pro-11-0-11-multilang/In PDF document text
    • https://morefxoptions.com/wp-content/uploads/2022/07/isamzylo.pdfIn PDF document text
    • https://havtornensrige.dk/wp-content/uploads/latadaw.pdfIn PDF document text
    • https://www.tresors-perse.com/wp-content/uploads/2022/07/tamail-1.pdfIn PDF document text
    • https://www.dancesocksbcn.com/advert/pc-unlocker-full-better-cracked-windows/In PDF document text
    • http://classibox.wpbranch.com/advert/apple-imac/In PDF document text
    • https://nyfindnow.com/wp-content/uploads/2022/07/phinan.pdfIn PDF document text
    • https://arabistgroup.com/wp-content/uploads/2022/07/QGIS_Map_Designpdf.pdfIn PDF document text
    • https://futurestrongacademy.com/wp-In 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
font_00_sfnt_off00000bfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFB 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off000093e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93E7 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261