Malicious PDF — malware analysis report

Static analysis result for SHA-256 037dcecfd870b022…

MALICIOUS

PDF

41.5 KB Created: 2020-08-02 16:46:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f3b37a3f5b4306c3fe613431cacbf375 SHA-1: 7ca8cf726533dd56d30e1b3c979a87362d704845 SHA-256: 037dcecfd870b022ec2f82310540efee866ca21ab630fa06514ab2db4d6de8fe
234 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirectors and SEO farms, suggesting a malicious intent to drive traffic to potentially harmful sites. The presence of a link to `ttraff.cc` and a heuristic firing for `PDF_MALICIOUS_REDIRECTOR_LINK` strongly indicate a phishing or malware distribution attempt. The document body's content, while garbled, includes keywords related to 'mower parts' and URLs, reinforcing the lure aspect.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.cc/pify?keyword=kingkutter+finish+mower+parts In PDF document text
    • http://files.arlingtonteosinte.org/uploads/1/3/1/4/131406629/vusiwipa.pdfIn PDF document text
    • http://files.chalfontyogaandmeditationcenter.com/uploads/1/3/1/6/131636843/9442431.pdfIn PDF document text
    • http://files.thekissinglipsofamerica.com/uploads/1/3/0/7/130739678/wuputipinivop.pdfIn PDF document text
    • http://files.trinitybiblechurchglassboro.com/uploads/1/3/0/7/130775934/cc5b6074f3d66f1.pdfIn PDF document text
    • http://files.ultrabender.com/uploads/1/3/1/4/131407106/4412152.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/1/0435/5942/0063/files/damovilopuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8384/8097/files/58003042120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/37033772539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13908697451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/hp_smart_array_p410i_license_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5254/7739/files/30485050322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3934/1216/files/celebrate_recovery_lesson_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6387/8566/files/kejowopete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/47176734503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2352/4259/files/ritaxibivobaveso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1446/3394/files/bewinowivenulodosoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3146/1016/files/gipodetofagapovixakaxanub.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_off0000613d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x613D 5408 bytes
SHA-256: 1fbdfae8466fa9c9726080d3f30a67421156712f9ec165f9d6946018f75982c2
font_01_sfnt_off00007394.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7394 10556 bytes
SHA-256: dd9168aa750a37397da43ae931ebfdc785752990c40d59a3823a4168cd94c520