Malicious PDF — malware analysis report

Static analysis result for SHA-256 035e15985c5f9abc…

MALICIOUS

PDF

69.1 KB Created: 2020-07-30 05:06:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 39507e62689b3c456e59886f11891e90 SHA-1: 34451518f1b73ebf53f4c5fe33c3abb40be063d5 SHA-256: 035e15985c5f9abc8a0fdbfdb219b4c6135bbafefd0ee6c020743c8d67321fdc
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it is a malicious redirector and part of an SEO link farm, designed to phish users. The embedded link, 'https://ttraff.cc/pify?keyword=aparato+respiratorio+pdf+anatomia', is a known malicious redirector. The document body, though heavily obfuscated, appears to contain metadata related to PDF generation, further supporting the analysis of a malicious document.

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.cc/pify?keyword=aparato+respiratorio+pdf+anatomia In PDF document text
    • http://files.buntcounselling.co.uk/uploads/1/3/2/6/132683289/lemew.pdfIn PDF document text
    • http://files.beachcitiesrollerderby.com/uploads/1/3/2/6/132682040/giruroboje-raxilu-waxupujenini.pdfIn PDF document text
    • http://files.teambethfoundation.org/uploads/1/3/1/4/131407823/sapuvifuzovaga-winigew-goradu.pdfIn PDF document text
    • http://files.swimshsc.com/uploads/1/3/0/7/130739311/nivavolarivajozamag.pdfIn PDF document text
    • http://files.dominicanhairalliance.com/uploads/1/3/0/9/130969545/pobax_fatavutizaj.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/1/0429/6799/0438/files/99171159986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9119/8112/files/9977586088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/37344431422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2590/8383/files/xomovuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wizivudid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/53007341053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mutiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0745/1029/files/zaxesaxubexofepawavazen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7735/4143/files/puvijawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7310/1214/files/84058450683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6624/4766/files/fiwiketanabujumarulax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3604/7525/files/77017049355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8938/7939/files/40268070123.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_off0000d0c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0C1 4932 bytes
SHA-256: cf817c4f4457ee71ec01b193eee280a646d64c149d96ad369ad80cd12e6f7e16
font_01_sfnt_off0000e15d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE15D 11440 bytes
SHA-256: f0808a7234fe366888508bd562bf95bba583cc67888bdfe6dad75bf0f5c7a59c

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