Malicious PDF — malware analysis report

Static analysis result for SHA-256 f55848c291fbd003…

MALICIOUS

PDF

125.2 KB Created: 2022-07-06 08:03:34 +00:00 Authoring application: amysabu (via PDF Master 1.0.1) First seen: 2023-12-11
MD5: 9d9fc1629bffa65a5914b6cf0bf50751 SHA-1: 8890399e78385ae386c9c9477f574f8848408ef3 SHA-256: f55848c291fbd0039458dda5a77c9ded62e0d27074a25d286e234f37f85e8b78
134 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0009

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.
  • 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/bath/clep.VGlueU1vZGVsIFN1Z2FyIFNldHMgMjEtMjkgaGl0VGl/?limeback=ZG93bmxvYWR8cWw4WkRCMmNIeDhNVFkxTnpBMk56RTFOSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/orderd PDF link annotation
    • https://cineafrica.net/oracle-forms-10g-tutorial-for-beginners-pdf-new-download/In PDF document text
    • http://www.gnvlearning.id/?p=10222In PDF document text
    • https://www.footballdelhi.com/adobe-acrobat-xi-11-crack-password34-exclusive/In PDF document text
    • https://kigetss.com/cncusbcontrollersoftwarekeygencracks-link/In PDF document text
    • https://promwad.com/sites/default/files/webform/tasks/levamel285.pdfIn PDF document text
    • http://www.ndvadvisers.com/aldus-pagemaker-5-0-software-free-download-for-windows-7-better/In PDF document text
    • https://sourav.info/wp-content/uploads/2022/07/geogla.pdfIn PDF document text
    • https://melaninterest.com/pin/308960/In PDF document text
    • https://best-housing.nl/wp-content/uploads/2022/07/glorpri.pdfIn PDF document text
    • https://www.huxleycf.co.uk/sites/default/files/webform/gavrqua483.pdfIn PDF document text
    • https://osteocertus.com/wp-content/uploads/2022/07/Windows_8_Super_Litel.pdfIn PDF document text
    • http://www.delphineberry.com/?p=16295In PDF document text
    • https://csermooc78next.blog/wp-content/uploads/2022/07/i_use_metalogix_migration_manager_for_blogs_and_wikis_and_here_iswhy.pdfIn PDF document text
    • https://togetherwearegrand.com/shree-lipi-ankur-software-exclusive-crack/In PDF document text
    • https://serippyshop.com/wp-content/uploads/2022/07/Godmustbecrazy2hindidubbed_BETTER.pdfIn PDF document text
    • http://aiplgurugram.com/?p=16908In PDF document text
    • https://facepager.com/upload/files/2022/07/eIvgCv3YW4PU4yFkakQG_06_7ec3d5fe731c36f61d55cf417c2a3482_file.pdfIn PDF document text
    • https://www.jpgcars.com/blog/137125In PDF document text
    • http://findinform.com/bath/clep.vglueu1vzgvsifn1z2fyifnldhmgmjetmjkgagl0vgl/?limeback=zg93bmxvywr8cww4wkrcmmniedhnvfkxtnpbmk56rtfoshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/orderdIn PDF document text
    • https://cuisodivedepti.wixsite.com/soufftollasearch::soufftollasearch:VkjpXt2Agb:cuisodivedepti@gmail.com/post/hillier-s-fundamentals-of-automotive-electronics-pdf-free-49-__full__In PDF document text
    • https://trello.com/c/lpQprsEl/160-be-awesome-live-awesome-by-himesh-pdf-free-fullIn 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
font_00_sfnt_off0000211e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x211E 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000a90a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA90A 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261