Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecfdb83dc5b6968f…

MALICIOUS

PDF

48.2 KB Created: 2020-08-25 21:48:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 34726b4c691b357d3bf549c3f3023045 SHA-1: 8becb0c1ad03053a575296037b517f4a3d6d0202 SHA-256: ecfdb83dc5b6968f427855fe487d25b1f363898876c9c465da7cbc9ea510a0bb
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though heavily obfuscated, contains the same redirector URL and numerous other URLs, many hosted on Shopify, likely as part of a link farm to improve SEO for malicious content. The primary intent appears to be directing users to malicious infrastructure via a deceptive link.

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.com/pify?keyword=george+foreman+indoor+outdoor+grill+recipes In PDF document text
    • http://zinaxu.northcountrypress.com/uploads/1/3/1/8/131871721/fuwomadabeg-pegidifi-sodaxoboxawo.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/1/0428/9835/8432/files/72710717911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5717/6986/files/51367392534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/4752/0165/files/igcse_chemistry_past_paper_questions_by_topic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7355/2028/files/ponurudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0696/8483/files/47842786406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5809/2439/files/58019344632.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9191/1066/files/12634961100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2731/5353/files/rotate_web_page_chrome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3915/2536/files/toxizazowoganotutifijape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1868/9432/files/90744826282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1746/2182/files/leveling_guide_maplestory_ark.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_off00007c2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C2C 5508 bytes
SHA-256: f932dd9006bffa8278065a6fe424bb6a037689d1490a9f59f9ca23a885b74efa
font_01_sfnt_off00008ecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ECC 10928 bytes
SHA-256: 92ff4227f0ac9fed41d06f28c9ac02b8bbaaf0257cb8b14ae9f535c134a1b1b5

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