Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebf304cd325e22a6…

MALICIOUS

PDF

44.3 KB Created: 2020-08-17 11:43:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d134e13b4f1dae591d9ac5f69f38b4fc SHA-1: b4ce3feaee473391dc4e0625ec4b123cc00929df SHA-256: ebf304cd325e22a6beaef097076d95afddde84a32e437124f033a01cae775e74
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though partially corrupted, contains text related to 'hiking guide zion national park' and the malicious URL, suggesting a lure to download potentially harmful content. The presence of multiple embedded links and the ML classifier's high confidence score indicate a malicious intent to redirect users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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.
  • 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://ttraff.com/pify?keyword=hiking+guide+zion+national+park In PDF document text
    • http://files.bandbac.net/uploads/1/3/0/8/130813841/3113811.pdfIn PDF document text
    • http://files.seattlemobiletinting.com/uploads/1/3/1/0/131070202/fijot-kepulomonuvesux-jejidugu-ruruzasepipej.pdfIn PDF document text
    • http://xixeged.discoverhispresence.com/uploads/1/3/2/3/132302921/zalofi.pdfIn PDF document text
    • http://files.thecritterranchllamas.com/uploads/1/3/1/3/131384400/c369cccf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6068/1109/files/1970c10_for_sale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0846/5828/files/roman_catholic_songs_in_tamil_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1046/3643/files/73446628353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7216/7841/files/10270493088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6421/4175/files/60746031328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5442/3445/files/gutavogoguxom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3038/0698/files/dexotusubuzamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/95163299228.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3310/0439/files/jetotidakajapoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3010/9593/files/rizuzukagowuzukituno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7643/5612/files/us_military_phonetic_alphabet.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

Related samples 4

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_off0000707d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x707D 5024 bytes
SHA-256: 48810b692999cc6de5c29f110fd021ff025624266fba7ff9d063daf9c2491acb
font_01_sfnt_off000081a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81A3 10004 bytes
SHA-256: 3daa15de1ab0e90319744470a22096972316de1aef4537d8e7e865105e61532e

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