Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b471af8dc8e0de…

MALICIOUS

PDF

123.1 KB Created: 2022-07-02 01:25:09 +02:00 Authoring application: fearimmo (via PDF Master 1.0.1) First seen: 2026-04-06
MD5: abc4b5cffa6cfad6a0539ce264973f4f SHA-1: 28f54b971e6fa228e30f5fa481d104d1d9e3ff5e SHA-256: a8b471af8dc8e0de3eef38e461039ddb6220b4f8564c4eafa596b6768d9f8637
129 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0014

Heuristics 5

  • 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.
  • 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.
  • 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.
  • 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://blogbasters.com/exilim/impresser/?muffler=ZG93bmxvYWR8VG84TVhRM1pueDhNVFkxTmpjeE1qTXdOWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.newson.dGhlIERhYXdhdC1lLUlzaHEgaGluZGkgZHViYmVkIG1vdmllIGRvd25sb2FkdGh.cavernous PDF link annotation
    • https://www.mil-spec-industries.com/system/files/webform/musicsoft-downloader-ver561-for-windows--added-by-users.pdfIn PDF document text
    • https://paydayplus.net/system/files/webform/download-shadow-of-the-colossus-pc-full-versionbfdcml.pdfIn PDF document text
    • https://www.locatii.md/wp-content/uploads/2022/07/nekplen.pdfIn PDF document text
    • https://gamersmotion.com/paulo-coelho-love-selected-quotations-pdf-63/In PDF document text
    • https://gimgame.ru/tamilmozhiyinsirappupdf15/In PDF document text
    • https://fessoo.com/upload/files/2022/07/phL8OYuV8EJjsKKp9q6W_01_323782abb85b6bdead80e3f34b8a885e_file.pdfIn PDF document text
    • https://www.nextiainfissi.it/2022/07/01/ten-kings-ashok-banker-epub/In PDF document text
    • https://www.townofriverview.ca/sites/default/files/webform/grant-application/harnoel590.pdfIn PDF document text
    • http://leasevoordeel.be/wp-content/uploads/2022/07/Munjeviti_Juric_Crtani_Film_Sinhronizirano_Na_22.pdfIn PDF document text
    • https://www.alconfin.it/wp-content/uploads/2022/07/Arthur_And_The_Revenge_Of_Maltazard_MULTI6PCDVD_Skidrow_Reloaded.pdfIn PDF document text
    • https://purosautosdetroit.com/?p=30259In PDF document text
    • https://heidylu.com/crysis-2-crack-windows-7-64-bit-hot/In PDF document text
    • https://brinke-eq.com/advert/hindi-hd-1080p-blu-badrinath-ki-dulhania-movie/In PDF document text
    • https://ak-asyl-mgh.de/advert/link-download-torrent-rad-studio-com-o-delphi-xe4-2012-com/In PDF document text
    • https://jobdahanday.com/descargar-los-simpsons-porno-bart-se-coje-a-lisa-juegos-para-celular-hitgolkes-zip/In PDF document text
    • https://rocky-tundra-47963.herokuapp.com/soatrav.pdfIn PDF document text
    • https://virtudojo.com/wp-content/uploads/2022/07/Nekojishi_Download_full_version.pdfIn PDF document text
    • https://youfee.de/wp-content/uploads/2022/07/Mxpro_Qpcr_Software_Free_Download.pdfIn PDF document text
    • https://luxvideo.tv/2022/07/01/intel-r-pentium-r-4-cpu-3-06-ghz-sound-driver-download-_best_/In PDF document text
    • http://blogbasters.com/exilim/impresser/?muffler=zg93bmxvywr8vg84tvhrm1puedhnvfkxtmpjee1qtxdowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.newson.dghlierhyxdhdc1llulzahegagluzgkgzhviymvkig1vdmlligrvd25sb2fkdgh.cavernousIn PDF document text
    • https://mithssicongteku.wixsite.com/coawastirac/post/ez-paycheck-license-keyIn 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_off000019cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x19CC 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
font_01_sfnt_off0000c7af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7AF 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54