Malicious PDF — malware analysis report

Static analysis result for SHA-256 efcf8dc3babd1d65…

MALICIOUS

PDF

125.4 KB Created: 2022-07-06 03:16:20 +00:00 Authoring application: lanatt (via PDF Master 1.0.1) First seen: 2026-05-23
MD5: 2430a3b8f54c7757f90b135806de7bb6 SHA-1: 01e5ba1cb9e67d6bb28f7717b8c8a202f16eac71 SHA-256: efcf8dc3babd1d65f7f0d9d178b9646bef98234a7310d4b8ba000e364fdb36aa
232 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0005

Heuristics 8

  • 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.
  • 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
  • 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://godsearchs.com/ZG93bmxvYWR8WHIxTkhCNVpIeDhNVFkxTnpBMk56RTFOSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/beinamovie.komondor/aG93IHRvIGluc3RhbGwgc3R5bHVzIHJteCBjcmFjawaG9/lingua.rear.paraphasias.tonus PDF link annotation
    • https://www.sedaguzellikmerkezi.com/crumplepop-videodenoise-1-0-4-crack-free-download-new/In PDF document text
    • https://dashiofficial.com/wp-content/uploads/2022/07/leticat.pdfIn PDF document text
    • http://worldwidefellowship.org/?p=18944In PDF document text
    • https://szklanepulapki.pl/wp-content/uploads/2022/07/NEW_Full_Ulead_GIF_Animator_50.pdfIn PDF document text
    • https://expressionpersonelle.com/wp-content/uploads/2022/07/homemcomendoocudocachorro.pdfIn PDF document text
    • https://gaming-walker.com/upload/files/2022/07/nkuG5wgQ35bzkDC7iHSN_06_0728471d22b2f8c4aa07ffb4d69822b3_file.pdfIn PDF document text
    • https://dev.izyflex.com/advert/culegere-chimie-organica-elena-alexandrescu-pdf-download-verified/In PDF document text
    • https://samak1.com/wp-content/uploads/2022/07/Missale_Romanum_Editio_Typica_Tertia_Emendata_Pdf_Download_n.pdfIn PDF document text
    • http://www.ndvadvisers.com/?p=In PDF document text
    • https://blackchurchlistings.com/wp-content/uploads/2022/07/Ratio_Master_175.pdfIn PDF document text
    • http://balloonfellows.com/wp-content/uploads/2022/07/telugu_movie_hd_download_utorrent_movies.pdfIn PDF document text
    • http://lms.courses4u.in/blog/index.php?entryid=9144In PDF document text
    • http://weymouthma.pt7.vt-s.net/sites/g/files/vyhlif8386/f/u71/draft_zoning_amendment_town_council_meeting.pdfIn PDF document text
    • http://shalamonduke.com/?p=44974In PDF document text
    • https://omaamart.com/wp-content/uploads/2022/07/belasarr.pdfIn PDF document text
    • https://www.colchesterct.gov/sites/g/files/vyhlif4286/f/uploads/boardscommissionapp2015_0.pdfIn PDF document text
    • https://gf-tunenoe.dk/wp-content/uploads/2022/07/facegen_modeller_35_free_crack_software-1.pdfIn PDF document text
    • https://unboxguru.com/wp-content/uploads/2022/07/zbysflec.pdfIn PDF document text
    • https://gaming-walker.com/upload/files/2022/07/nkuG5wgQ35bzkDC7iHSN_06_0728471d22b2f8c4aaIn PDF document text
    • https://samak1.com/wp-In PDF document text
    • http://balloonfellows.com/wp-In PDF document text
    • http://weymouthma.pt7.vt-In PDF document text
    • http://godsearchs.com/zg93bmxvywr8whixtkhcnvpiedhnvfkxtnpbmk56rtfoshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/beinamovie.komondor/ag93ihrvigluc3rhbgwgc3r5bhvzihjtecbjcmfjawag9/lingua.rear.paraphasias.tonusIn PDF document text
    • http://kaycani.yolasite.com/resources/Prodad-Heroglyph-Plugin-Edius-6-4shared.pdfIn PDF document text
    • https://trello.com/c/89qwLHxX/136-udemy-become-a-expert-in-java-go-beginner-to-advance-crack-freeIn PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • https://trello.com/c/89qwLHxX/136-udemy-become-a-expert-in-java-go-beginner-to-advance-crack-In 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: efekt-metal.pl 339 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004259.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4259 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000c984.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC984 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261