Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a66585ef80ccc8…

MALICIOUS

PDF

135.2 KB Created: 2022-09-11 00:59:35 +00:00 Authoring application: honkapi (via PDF Master 1.0.1) First seen: 2026-05-09
MD5: 78df43d61c433eda434f30ab5a6c74b8 SHA-1: 8d5c1ec4a2dee669c6093fbe9b27697ba014e80c SHA-256: 18a66585ef80ccc88678566ee2981667f2443f1c2f7e7b66c98630b15cd935ae
224 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0008

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://xtraserp.com/ZG93bmxvYWR8S1k1Y20xdU9IeDhNVFkyTWpZNE1ETTVNSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.backbones/sinned.builds?cGVwIDE5OTIgcHJlZXNjb2xhciBwZGYgMTQcGV=poclain.cassgrain PDF link annotation
    • https://aboe.vet.br/advert/vrmesh-7-6-crack-hot/In PDF document text
    • https://youtubemap.net/wp-content/uploads/2022/09/trickar.pdfIn PDF document text
    • https://xtc-hair.com/autocad-2008-x64-xforce-keygen-downloadhttps-scoutmails-com-index301-php-k-autocad-2008-x64-xforce-link/In PDF document text
    • http://mariana-flores-de-camino.com/?p=22671In PDF document text
    • https://tinilist.com/wp-content/uploads/2022/09/demjean.pdfIn PDF document text
    • https://t-girls.it/wp-content/uploads/2022/09/CALLOFDUTY111WALLHACKAIMBOTRADARCHEAT_EXCLUSIVE-2.pdfIn PDF document text
    • http://adomemorial.com/2022/09/11/dukes-of-hazzard-free-torrent-download-verified/In PDF document text
    • http://shaeasyaccounting.com/amd-a8-4500m-apu-with-radeon-tm-hd-graphics-driver/In PDF document text
    • https://brandyallen.com/2022/09/11/madras-cafe-movie-download-hot-in-mp4/In PDF document text
    • https://bodhibliss.org/eve-online-apocrypha-client-hack-tool-free-download-link/In PDF document text
    • https://diontalent.nl/wp-content/uploads/2022/09/philippinehistorybyteodoroagoncillopdffree.pdfIn PDF document text
    • https://isaiah58boxes.com/2022/09/10/descargartnclase2pararfactorcrack-exclusive/In PDF document text
    • https://news.mtkenya.co.ke/advert/pradeep-chemistry-class-12-pdf-portable-download/In PDF document text
    • https://antoinevanaalst.com/wp-content/uploads/2022/09/Devil_May_Cry_Anime_Torrent_Eng_Sub_INSTALL.pdfIn PDF document text
    • https://acsa2009.org/advert/feiying-simulator-launcher-14-full-3/In PDF document text
    • https://ppetn.com/wp-content/uploads/2022/09/Forza_Horizon_2_Pc_Download_Utorrent_Moviesinstmankl.pdfIn PDF document text
    • https://balancingthecrazy.com/2022/09/10/netcad-6-full-repack-crack-indir/In PDF document text
    • https://webkhoacua.com/multiecuscan-3-5-exclusive-crack/In PDF document text
    • https://obzorkuhni.ru/wp-content/uploads/2022/09/titanic_2_jack_is_back_full_movie.pdfIn PDF document text
    • https://www.tucarroycasa.com/wp-content/uploads/2022/09/Serato_Video_110_Serial_Number_LINK.pdfIn PDF document text
    • https://xtc-hair.com/autocad-2008-x64-xforce-keygen-downloadhttps-scoutmails-com-index301-php-In PDF document text
    • https://t-girls.it/wp-In PDF document text
    • https://antoinevanaalst.com/wp-In PDF document text
    • https://ppetn.com/wp-In PDF document text
    • https://www.tucarroycasa.com/wp-In PDF document text
    • http://xtraserp.com/zg93bmxvywr8s1k1y20xdu9iedhnvfkytwpzne1ettvnshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.backbones/sinned.builds?cgvwide5otigchjlzxnjb2xhcibwzgygmtqcgv=poclain.cassgrainIn 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_off00000fcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCF 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off000097bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97BB 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261