Malicious PDF — malware analysis report

Static analysis result for SHA-256 552a4c1feec85ad2…

MALICIOUS

PDF

131.1 KB Created: 2022-07-18 02:25:23 +00:00 Authoring application: whatjam (via PDF Master 1.0.1) First seen: 2026-05-19
MD5: e9a952825ae828ef0fc4b81cbf91c190 SHA-1: b305cda7a5e17f30672c49fc3aaa268fe368f2f3 SHA-256: 552a4c1feec85ad27803e1d7c43afac35d2d9acc23742772d493324234c1f4e2
194 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0005

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.
  • 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.
  • 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://bestentrypoint.com/institut/?exhibitionists&primelocation=d2luZG93cyA3IDY0IGJpdCBrZXlnZW4gdWx0aW1hdGUgd2Fycmlvcgd2l&nutr=ZG93bmxvYWR8NDFOY0RWeFlueDhNVFkxT0RBd05qWTVPWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation
    • http://www.vclouds.com.au/?p=738490In PDF document text
    • https://efekt-metal.pl/witaj-swiecie/In PDF document text
    • https://antiquesanddecor.org/prepress-imposition-software-free-verified-download/In PDF document text
    • https://clinicalnutrition.ie/wp-content/uploads/2022/07/curso_de_aerografia_ignacio_otero_descarga_gratis.pdfIn PDF document text
    • https://smartictbd.com/2022/07/18/fausto-papetti-emmanuelle-mp3-better/In PDF document text
    • https://inge-com.fr/wp-content/uploads/2022/07/Roger_Zelazny_Gospodar_Svetlosti_Pdf_Free.pdfIn PDF document text
    • http://atmecargo.com/?p=11964In PDF document text
    • https://authorwbk.com/2022/07/18/iboot-26-iso-free-download-link/In PDF document text
    • https://auxclicscitoyens.fr/wp-content/uploads/2022/07/Curriculum_Development_By_Purita_Bilbao_Pdf_Free_EXCLUSIVE.pdfIn PDF document text
    • https://www.ozcountrymile.com/advert/idm-ultraedit-15-10-0-1017-portable-download-better/In PDF document text
    • https://northshorerealtysanpancho.com/advert/adobe-media-encoder-cc-2017-v11-0-2-53-x64-crack-sadeempc-rar-extra-quality/In PDF document text
    • http://www.tampabestplaces.com/wp-content/uploads/2022/07/jesflan.pdfIn PDF document text
    • https://mybusinessplaces.com/wp-content/uploads/2022/07/Malwarebytes_Premium_41056_Crack_UPD_2020_With_License_Keys_Lifetime.pdfIn PDF document text
    • https://praxis-heine.com/blog/verified-download-xforce-keygen-autocad-2010-64-bit-patch/In PDF document text
    • https://perlevka.ru/advert/jikkyou-powerful-pro-yakyuu-2009-rar-top/In PDF document text
    • https://botkyrkaboxning.se/wp-content/uploads/2022/07/Horde_2_The_Citadel_English_83.pdfIn PDF document text
    • http://mulfiya.com/?p=16760In PDF document text
    • https://www.dorlandini.com/wp-content/uploads/2022/07/malcarl.pdfIn PDF document text
    • http://www.delphineberry.com/?p=25433In PDF document text
    • https://clinicalnutrition.ie/wp-In PDF document text
    • https://auxclicscitoyens.fr/wp-In PDF document text
    • https://northshorerealtysanpancho.com/advert/adobe-media-encoder-cc-2017-v11-0-2-53-x64-crack-In PDF document text
    • https://mybusinessplaces.com/wp-content/uploads/2022/07/Malwarebytes_Premium_41056_Crack_UIn PDF document text
    • http://bestentrypoint.com/institut/?exhibitionists&primelocation=d2luzg93cya3idy0igjpdcbrzxlnzw4gdwx0aw1hdgugd2fycmlvcgd2l&nutr=zg93bmxvywr8ndfoy0rwefluedhnvfkxt0rbd05qwtvpwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn PDF document text
    • https://mybusinessplaces.com/wp-content/uploads/2022/07/malwarebytes_premium_41056_crack_upd_2020_with_license_keys_lifetime.pdfIn 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: efekt-metal.pl 339 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3375 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000bb61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB61 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261