Malicious PDF — malware analysis report

Static analysis result for SHA-256 c468675397bbca78…

MALICIOUS

PDF

46.7 KB Created: 2020-11-05 19:13:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0722c597bc7fda3435bdbf2c09e19fa6 SHA-1: df95ff0acd59f1c5783eec3603157f6a6ea77693 SHA-256: c468675397bbca789ab116c48807be1ece0d6a67ab6c1cdd5f9bfc68667d8550
76 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URL that redirects to a suspicious domain, identified as a potential SEO redirector for phishing or malware delivery. The ML classifier strongly indicated maliciousness, and the PDF structure itself contains external URI references. Although no scripts were directly extracted, the presence of a malicious redirector suggests an attempt to lure the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://trafficel.ru/aws?keyword=words+with+the+root+germ PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373301/normal_5f9b042eaf8e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367635/normal_5f874e1f1c2af.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/3c60a07f-faf1-4644-9361-ab5ed19585e9/lafotoxanipoxol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a8f52d3-9f33-4717-abda-d7ba8d574345/dakisawirutesigepewuga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b17e7481-4302-46a2-8da8-fb3778e4441c/59680338296.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3055b30c-2a86-4004-87b5-59b4a8b5b8cf/black_and_decker_bread_maker_recipes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4a5ba59-3dfe-43d7-9c88-7b4c18229043/low_profile_video_card_for_dell_optiplex_9020.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/beer_brewery_process.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9aa89c90-e4d8-4ec9-ae64-4c36cc068d96/dosumadejaxos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/deb6d20e-5e9f-4f4d-9619-57a196529001/tiluwepuxelunolo.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/nanud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c278f68-912a-4da8-8f9f-8862fde3c6bf/lenukiju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44281362-214b-4317-b067-907444843df6/xudewezuravin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1160a8b7-88ab-415f-871e-6b80c072e631/rasisi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acebf401-afef-4659-bded-1105ee6d6a30/49234563248.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68DC 4784 bytes
SHA-256: 19225d670fa25d72d121ffeb2e0aec45f710620b873475b7dda9beea24a30c34
font_01_sfnt_off0000793f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x793F 11608 bytes
SHA-256: 6c8fb288fab204bae6f42c6b9d9082ca86985d7d03da9bc20a22997d4b08357b
font_02_sfnt_off0000a01e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA01E 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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