Malicious PDF — malware analysis report

Static analysis result for SHA-256 41ed8739e091593a…

MALICIOUS

PDF

47.8 KB Created: 2020-08-01 21:24:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 2065bbe7f0deecf7d30dd640c144eb6b SHA-1: 21525193d5c7a1a13d1cba9a0c4de0ac2ef95eeb SHA-256: 41ed8739e091593a2b5fac56f48f5dd60af5a6337173c6261173ce360fbc638e
194 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=unholy+dk+guide', suggesting a lure to a malicious site. The ML classifier also strongly indicated maliciousness.

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=unholy+dk+guide In PDF document text
    • http://files.theburnerdowner.com/uploads/1/3/0/8/130814042/zanirajuzidar.pdfIn PDF document text
    • http://files.harrowphotographer.co.uk/uploads/1/3/1/4/131438180/3924126.pdfIn PDF document text
    • http://files.tchsdance.com/uploads/1/3/0/8/130873918/2045e56761.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/1/0428/8253/1481/files/tibelilatatupam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4326/6458/files/12702967759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5419/3047/files/1515881604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1392/1175/files/shotga_cola_synergy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0073/3596/files/dinuxojaxusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0611/3430/files/53363304343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6812/9431/files/24060785863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27039997465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56070096689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2619/4333/files/27984625334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5344/9365/files/57615330652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/48147542265.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 6

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_off00007f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F3E 4760 bytes
SHA-256: 65521d07a0d5d7de7e484a951e047150f225aecd33a2576e1b38b2310c34066d
font_01_sfnt_off00008f7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F7D 10248 bytes
SHA-256: 5417cc1edf74d1ed913d18880c5a6857e94de755836ec44d83cb2be244c51a56

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