Malicious PDF — malware analysis report

Static analysis result for SHA-256 29f3fcb4c23bb796…

MALICIOUS

PDF

111.3 KB Created: 2022-10-15 17:56:23 +00:00 Authoring application: comhare (via PDF Master 1.0.1) First seen: 2024-01-03
MD5: 961a2e32b661766aa6e7bf25bf94f098 SHA-1: 0da97ff6419ad50f5b7cdf83e68ac5d20cba6af8 SHA-256: 29f3fcb4c23bb79688f5a3c15a43525d7e04eb0b9c5c1fc1abca8c55f20a6ec1
164 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0012

Heuristics 5

  • 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.
  • 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.
  • 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://signforcover.com/gamecasts/levelest.pornographic/ZG93bmxvYWR8clk2Ym1KaGNueDhNVFkyTlRjek16ZzBNWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/aranjuez.epivir.RG93bmxvYWQgUHJvY29kZXIgRm9yIEVkaXVzIDYgMjARG9.remnant/ PDF link annotation
    • http://www.male-blog.com/2022/10/15/adobe-after-effects-cc-2018-18-1-1-16-x64-patch-rar/In PDF document text
    • https://www.caelmjc.com/wp-content/uploads/2022/10/Mecanismos_Y_Dinamica_De_Maquinaria_Mabie_Solucion_Artda_Photodeluxe_Ro.pdfIn PDF document text
    • https://ventanasantiruido.info/2022/10/15/water-supply-and-sanitary-engineering-by-g-s-birdie-pdf-free-80-hot/In PDF document text
    • https://the4streets.com/wp-content/uploads/2022/10/windows_xp_sounds_download_zip.pdfIn PDF document text
    • https://vintriplabs.com/xforce-keygen-install-autocad-mobile-2019-64-bit-windows-10/In PDF document text
    • https://endlessorchard.com/download-tu-hi-re-marathi-movie-kickass-torrent-top/In PDF document text
    • https://mindfullymending.com/new-maplesoft-maple-14-added-portable-32-bit-hot/In PDF document text
    • https://www.cooks.am/wp-content/uploads/2022/10/gemmanc.pdfIn PDF document text
    • https://rerummea.com/wp-content/uploads/2022/10/erowid_methamphetamine_shake_and_bake.pdfIn PDF document text
    • https://pnda-rdc.com/upd-download-al-quran-per-juz-pdf-to-jpg/In PDF document text
    • https://www.caelmjc.com/wp-content/uploads/2022/10/Mecanismos_Y_Dinamica_De_Maquinaria_MabIn PDF document text
    • https://ventanasantiruido.info/2022/10/15/water-supply-and-sanitary-engineering-by-g-s-birdie-pdf-In PDF document text
    • http://signforcover.com/gamecasts/levelest.pornographic/zg93bmxvywr8clk2ym1kagnuedhnvfkytlrjek16zzbnwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/aranjuez.epivir.rg93bmxvywqguhjvy29kzxigrm9yievkaxvzidygmjarg9.remnant/In 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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000019a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19A1 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000a18d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA18D 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261

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