Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecfdc229691b081b…

MALICIOUS

PDF

46.4 KB Created: 2020-07-28 18:47:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5aee0aced5fdac9a2e2aa9d9f6bd73a1 SHA-1: c2fb396ae156175e4529422b06ea34eb03e039c8 SHA-256: ecfdc229691b081b5c95ea04b8d50aa14b1fedaa3eba1472c16176633884221e
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a lure related to 'html payment form templates free' and embeds multiple links. One of these links, 'https://ttraff.ru/pify?keyword=html+payment+form+templates+free', is identified as a malicious redirector. The document structure and embedded links suggest a phishing attempt to redirect users to malicious content, likely for credential harvesting or malware delivery.

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.
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=html+payment+form+templates+free In PDF document text
    • http://files.rottingdeancricketclub.co.uk/uploads/1/3/2/8/132814136/jebobozojavolo_libofojuxerefu.pdfIn PDF document text
    • http://files.accruemineralsltd.com/uploads/1/3/2/7/132740415/0966038d97.pdfIn PDF document text
    • http://files.shopmoxiemae.com/uploads/1/3/0/7/130740586/0b5cb998be8661f.pdfIn PDF document text
    • http://files.womensclubofpittsford.org/uploads/1/3/1/3/131380305/9770744.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/1/0433/0687/7080/files/fiwowosilikaragufes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0879/4525/files/zorejew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8731/2536/files/noweroni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/76290155037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8118/8003/files/wevitupusowupawire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6169/8969/files/8486758113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4836/2399/files/49415475480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6707/1894/files/gezuzujuzudoriwigupetutef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/17974343769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4461/5830/files/wozifikufilupenaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6363/1272/files/52601767745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4645/2899/files/78385551799.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 1

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_off000079b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79B1 4848 bytes
SHA-256: c147a22336e4d570ac1d7176c7f7b86728e8c49ee48ef264a4110cc767e9ff69
font_01_sfnt_off00008a12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A12 10088 bytes
SHA-256: 03285b1dd7f510eb22c793a57b339689c2bf43619fb5359126d7382607a64fc7

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