Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df13cdd478cbe3c…

MALICIOUS

PDF

51.9 KB Created: 2020-08-22 23:58:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5fa63cab2e47dfa79f052033a7376153 SHA-1: d5a512087dd9cfbdd4debd0ca9d2179b6b0c7a72 SHA-256: 6df13cdd478cbe3c9dbe8059b05a32d68b64ae1aaddc7304ff7967113c8b1f05
194 Risk Score

Malware Insights

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

This PDF file was identified as malicious due to its structure, which includes a large number of external links designed to appear as SEO content. The primary malicious URL, https://ttraff.ru/pify?keyword=extent+report+cucumber+selenium, is a known redirector, indicating an attempt to funnel users to harmful sites. The document body, though heavily obfuscated, contains this malicious URL and several benign-looking Shopify links, likely to lend legitimacy. No scripts were extracted, but the PDF's design strongly suggests a phishing or scam attempt.

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=extent+report+cucumber+selenium In PDF document text
    • http://files.quadrysteria.com/uploads/1/3/2/8/132814990/a1a2c4.pdfIn PDF document text
    • http://files.theconsumerperspective.com/uploads/1/3/1/4/131437724/gidamigexagugu-fagoti-vakusila-kififoge.pdfIn PDF document text
    • http://files.marriedmarks.com/uploads/1/3/0/7/130738644/1323285.pdfIn PDF document text
    • http://files.stvincentschurch.com/uploads/1/3/0/9/130969699/setakoximutep_fekoxekewuso_fobodixovamawe.pdfIn PDF document text
    • http://files.marissapriestley.com/uploads/1/3/1/0/131070934/7de25dae92bc00d.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://cdn.shopify.com/s/files/1/0435/5876/4696/files/american_english_phonetic_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wimuwukewamofese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0057/3601/files/60523658329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3756/4838/files/attestation_employeur_pole_emploi_remplissable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6373/6485/files/33659653395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2648/0295/files/11114905570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1327/0692/files/67797003236.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7667/3946/files/sarelataguvedisagobedanev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6640/6552/files/19382303833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4763/2548/files/43570792517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0005/3408/files/93664666992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27947700243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6334/4280/files/75840545134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0628/8291/files/python_hash_table.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_off00007613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7613 4916 bytes
SHA-256: 7db5ec7d4b67b1bf6fc9332af3d0dfc1feebb8f3545d21d3ce69d1e5298076a7
font_01_sfnt_off000086ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86AC 14116 bytes
SHA-256: 7fc6b2a63298bc23534525cddd0048c9074e6ebf54da3ae8b7c0984155dd9347
font_02_sfnt_off0000b46e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB46E 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3