Malicious PDF — malware analysis report

Static analysis result for SHA-256 17a0f694d44c1b20…

MALICIOUS

PDF

67.0 KB Created: 2020-08-15 06:04:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e92ebfd09fc144f96a0ed3ab3ef8953f SHA-1: 3883f14def6575992c079e922544510f02001b15 SHA-256: 17a0f694d44c1b20d2da25d5625805c1fa14e06679ae51437af9cc236270a925
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=kingdom+hearts+dream+drop+distance+wiki+guide, which is used in both the document body and heuristic firings.

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.ru/pify?keyword=kingdom+hearts+dream+drop+distance+wiki+guide In PDF document text
    • http://tekuvuxok.norwichpoetry.org/uploads/1/3/0/9/130969242/4128990.pdfIn PDF document text
    • http://files.customcateringco.com/uploads/1/3/0/7/130738841/1458801.pdfIn PDF document text
    • http://files.isuprssa.com/uploads/1/3/0/8/130873921/9609515.pdfIn PDF document text
    • http://files.jackieschuknecht.com/uploads/1/3/1/6/131606165/lulerewakenunidixiz.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/1/0437/5543/8241/files/adyashanti_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2588/9442/files/xunudazewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4641/1160/files/padman_full_movie_hd_1080p_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7767/2868/files/34473382610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9842/3967/files/wulotelewijiratadatulegis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4225/9612/files/palida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4619/8683/files/kipel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4749/2506/files/jebowivajoxedov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7460/0598/files/laboratory_equipment_list_and_their_uses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3343/6066/files/40609431634.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 3

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_off0000c7ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7FF 5580 bytes
SHA-256: 587a9a8e15e9777524d7d45b102d14d356006dba655a69c8314f8b20264a8c71
font_01_sfnt_off0000dad2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD2 10524 bytes
SHA-256: 3f81965450a1eaf26779e33b6f116899bfbf090bc41f20aea6402d8d4736110a

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