Malicious PDF — malware analysis report

Static analysis result for SHA-256 284c82d83f4da032…

MALICIOUS

PDF

78.2 KB Created: 2021-04-08 04:33:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5204e4e544a97c00549c4a4ff415c9bc SHA-1: 4526fa0664dea3301d48dc3240113d3fe384e08c SHA-256: 284c82d83f4da032c1eae4a3924ce0b8fcc971355fd558f7ba730e5838e212b7
76 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a heuristic indicating it is an SEO redirector for phishing, specifically a 'free-download phishing' lure. The embedded URL, https://druttle.ru/wix?keyword=chicco+polly+13+high+chair, is the primary indicator of this malicious activity. While no scripts were extracted, the PDF structure and the nature of the URL suggest an attempt to trick users into visiting a compromised site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://druttle.ru/wix?keyword=chicco+polly+13+high+chair PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4478968/normal_5fc96feb0fa32.pdfIn PDF document text
    • https://cdn.sqhk.co/vugomupuzisa/06Ygcje/15245427012.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489028/normal_5ff2155c7e11d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480898/normal_5fd03a8276dec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408475/normal_5fd6843bccd16.pdfIn PDF document text
    • https://cdn.sqhk.co/lekibefefu/dhehiiW/spectrum_dream_2d_pixel_platformer_games.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404488/normal_5fd125c013e2c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374177/normal_60673c9f4d081.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwonesi/fhjhahf/rawox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472776/normal_601638ae1477a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375087/normal_5ffc4e6d16cd7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368242/normal_5fc88868dc589.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kuboki/44546921123.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/gangstar_4_game_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/faxaxos/anti-_capitalism_a_marxist_introduction.pdfIn PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/46842494395.pdfIn PDF document text
    • http://xoraruboxa.epizy.com/nasuwixajuz.pdfIn PDF document text
    • http://wawanojuvib.rf.gd/helping_and_linking_verbs.pdfIn 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/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f356.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF356 5240 bytes
SHA-256: 3f38c38bce29aa3401540b06b2ecb2842540975aaf02368db4847a16a11b98a1
font_01_sfnt_off00010535.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10535 11332 bytes
SHA-256: bebb50e7ed7fcd863b45408ab1a88021f7f450def9838479d434eb1f4dccfb91