Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce862937e8c2aa20…

MALICIOUS

PDF

33.2 KB Created: 2020-08-05 17:22:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d14cc6ce84351a1bf85dc01789767179 SHA-1: 21fa3fe265d1db45a0c4ca00e3933a13d43fabe8 SHA-256: ce862937e8c2aa205265024ad13786d3f416dcdf8b60947f0fe86721fc61b752
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.ru) which is flagged as malicious. The document body and embedded links suggest a lure to download educational material, likely a phishing or malware distribution scheme. The presence of multiple Shopify links, some benign and some unknown, indicates an attempt to blend malicious content with legitimate-looking resources.

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/wb?keyword=platinum%20physical%20science%20grade%2011%20pdf In PDF document text
    • http://files.gilbertparksandrecreationfoundation.org/uploads/1/3/1/8/131871467/1542920.pdfIn PDF document text
    • http://lizeviti.pmubywendyrose.com/uploads/1/3/0/7/130738841/vapanalomo_migujaf_siresamug.pdfIn PDF document text
    • http://files.jagtheatre.com/uploads/1/3/1/4/131406491/9207116.pdfIn PDF document text
    • http://files.cofina.co.uk/uploads/1/3/1/8/131872048/06465d9a69.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/1/0439/0171/4587/files/40275832908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kovogosiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3549/9418/files/60658984945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8778/2297/files/68666433113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8737/9094/files/aneurisma_de_aorta_descendente.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9581/8404/files/nerurenaxax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2771/6520/files/bafasofixubukadut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2254/0185/files/wexewojitepeboforixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2172/9955/files/kovovikusebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2821/files/59978381841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1829/7245/files/zekujuzojedaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1605/2123/files/fisanovopov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8523/3318/files/ancient_egypt_history_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/20099907496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1275/7400/files/12393579859.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_off0000455c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x455C 5724 bytes
SHA-256: e54bab74f9e7dabbb9d88004f5e5ea4cbb5ddaa75d32afa1937ae7e52cee1af8
font_01_sfnt_off000058b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58B9 8928 bytes
SHA-256: c01057bf57df8c3ea8d34a88e4d781a9185cc3d97d337978fc91db09b6c43b42