Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f136edbe228d5a…

MALICIOUS

PDF

254.1 KB Created: 2022-07-20 23:37:38 +00:00 Authoring application: kailgit (via PDF Master 1.0.1) First seen: 2026-07-19
MD5: 7143aa6f5425f76cb1fc37f442365569 SHA-1: a50b691d3b75a85ab05022cec4a248cb4f6f6854 SHA-256: 26f136edbe228d5a74a8377fbf17c2502edeef159847fdf0639778796cdf2f9d
204 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0009

Heuristics 7

  • 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 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 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://dormister.com/yesses/ZG93bmxvYWR8T3kxZWpkbk5IeDhNVFkxT0RJeU1EZzJObng4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/floundering/U2FseXV0IM-AU2F/?multifunctions=&sparkling=differs PDF link annotation
    • http://www.devraco.com/wp-content/uploads/2022/07/josedar.pdfIn PDF document text
    • https://evolutionbikes.it/wp-content/uploads/2022/07/Choco_Pixel_X.pdfIn PDF document text
    • https://voxpopuli.kz/wp-content/uploads/2022/07/gavkaf.pdfIn PDF document text
    • https://ibipti.com/the-roc-t���-cheat-code/In PDF document text
    • https://www.easyblogging.in/wp-content/uploads/2022/07/Entanglement_Trainer_Incl_Product_Key_Free_Download_2022Latest.pdfIn PDF document text
    • http://www.antiquavox.it/daffodil-yellow-a-few-poems-from-an-insect-collector-trainer-free-download-for-windows-2022/In PDF document text
    • https://fraenkische-rezepte.com/wp-content/uploads/2022/07/mertak.pdfIn PDF document text
    • https://www.gregcolley.com/cartoon-magic-world-universal-keygen-download/In PDF document text
    • https://earthoceanandairtravel.com/2022/07/20/conan-exiles-the-imperial-east-pack-trainer-free-updated/In PDF document text
    • https://gembeltraveller.com/the-end-of-an-actress-original-soundtrack-hack-mod-updated-2022/In PDF document text
    • http://classiswisconsin.org/wp-content/uploads/2022/07/Poor_Stickman.pdfIn PDF document text
    • https://www.coursesuggest.com/wp-content/uploads/2022/07/Muslim_3D_Crack__Serial_Number__Download_X64_Updated.pdfIn PDF document text
    • https://footpathschool.org/2022/07/20/the-clockwork-man-the-hidden-world-trainer-mac-win-updated-2022/In PDF document text
    • https://fokusparlemen.id/wp-content/uploads/2022/07/theohar.pdfIn PDF document text
    • https://film-cue.com/wp-content/uploads/2022/07/The_Chronicles_of_Moses_and_the_Exodus.pdfIn PDF document text
    • http://uk-ok.com/?p=14610In PDF document text
    • http://www.dagerardo.ch/a-players-heart-install-crack-license-key-full/In PDF document text
    • https://farmaciacortesi.it/edge-of-time-rise-of-the-aeus-patch-full-version-license-key-full-free-download-3264bit-2022/In PDF document text
    • https://oldeberkoop.com/wp-content/uploads/2022/07/The_Deepening_EcoOffensive.pdfIn PDF document text
    • https://fescosecurity.com/wp-content/uploads/2022/07/evetharw.pdfIn PDF document text
    • http://dormister.com/yesses/zg93bmxvywr8t3kxzwpkbk5iedhnvfkxt0rjeu1ezzjobng4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/floundering/u2fsexv0im-au2f/?multifunctions=&sparkling=differsIn 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_off00003b31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B31 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000c31d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC31D 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261