Malicious PDF — malware analysis report

Static analysis result for SHA-256 c687ac11555be5cd…

MALICIOUS

PDF

139.1 KB Created: 2022-09-10 16:43:49 +00:00 Authoring application: henfin (via PDF Master 1.0.1) First seen: 2026-05-16
MD5: be47be40aa229c6a0716207cbb2d5039 SHA-1: c1f31f945854c9e811cbe4320289be1bb35eb63b SHA-256: c687ac11555be5cd8ff9357ad02d9aae37488ebbd4208f93c26babc5924f48ae
224 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0006

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://findinform.com/assimilation/tomoka.buckthorn/delton/VFZnZW5pYWwgNC4xMCBNdWx0aWxpbmd1YWwgQnVpbGQgMTgwIFBsdXNwYWtldCBQcmVtaXVtVFZ?ZG93bmxvYWR8eE04Ym1Kb04zeDhNVFkyTWpZNE1ETTVNSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA&pricker=lotrimin.retest PDF link annotation
    • https://mdotm.in/visible-body-3d-human-anatomy-atlas-pc-hot-cracked-rar/In PDF document text
    • https://efekt-metal.pl/witaj-swiecie/In PDF document text
    • http://archlooks.com/?p=21781In PDF document text
    • http://tekbaz.com/2022/09/10/acronis-true-image-serial-key-full-download/In PDF document text
    • http://www.studiofratini.com/windows-vista-ultimate-32-bitonly-80-mb-super-compressed/In PDF document text
    • https://kitchenwaresreview.com/transducers-and-instrumentation-by-dvs-murthy-ebook-download-2021/In PDF document text
    • https://bodhibliss.org/inpho-applicationsmaster-crack-link/In PDF document text
    • https://topfleamarket.com/wp-content/uploads/2022/09/Swar_Systems_SwarPlug_Full_Edition_VSTi_10_keygen.pdfIn PDF document text
    • http://estatesdevelopers.com/wp-content/uploads/2022/09/Pantorouterplansfreedownload31_BETTER.pdfIn PDF document text
    • https://eneohii.com/wp-content/uploads/2022/09/kisi_kisi_soal_bahasa_inggris_sma_kelas_x_semester_2__added_.pdfIn PDF document text
    • https://www.rajatours.org/hd-online-player-return-to-the-36th-chamber-of-shaoli/In PDF document text
    • https://farmaciacortesi.it/wp-content/uploads/2022/09/Star_Trek_Online_Hack_V21rarl.pdfIn PDF document text
    • http://awaazsachki.com/?p=72277In PDF document text
    • https://fajas.club/wp-content/uploads/2022/09/DescargarElLibroUnDolorImperialPdf.pdfIn PDF document text
    • https://mondetectiveimmobilier.com/2022/09/10/hd-online-player-hancock-2008-unrated-1080p-multi-mkvonly-top/In PDF document text
    • https://wanoengineeringsystems.com/starcraft-ii-the-complete-collection-pc-game-multi6-free-download-��-elamigos-top/In PDF document text
    • https://rednails.store/new-crack-autodesk-revit-2018x86-x64-keygen/In PDF document text
    • https://www.imoc.cc/wp-content/uploads/2022/09/Breaking_Bad_Season_3_480p_COMPLETE_HDTVrip.pdfIn PDF document text
    • http://www.bigislandltr.com/wp-content/uploads/2022/09/Pdf_xchange_editor_serial_key.pdfIn PDF document text
    • http://it-labx.ru/?p=143601In PDF document text
    • https://kitchenwaresreview.com/transducers-and-instrumentation-by-dvs-murthy-ebook-In PDF document text
    • https://topfleamarket.com/wp-In PDF document text
    • http://estatesdevelopers.com/wp-In PDF document text
    • https://eneohii.com/wp-In PDF document text
    • https://mondetectiveimmobilier.com/2022/09/10/hd-online-player-hancock-2008-unrated-1080p-In PDF document text
    • https://wanoengineeringsystems.com/starcraft-ii-the-complete-collection-pc-game-multi6-free-In PDF document text
    • https://www.imoc.cc/wp-In PDF document text
    • http://findinform.com/assimilation/tomoka.buckthorn/delton/vfznzw5pywwgnc4xmcbndwx0awxpbmd1ywwgqnvpbgqgmtgwifbsdxnwywtldcbqcmvtaxvtvfz?zg93bmxvywr8ee04ym1kb04zedhnvfkytwpzne1ettvnshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda&pricker=lotrimin.retestIn 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_off00001bc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BC4 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000a3b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3B0 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261