Malicious PDF — malware analysis report

Static analysis result for SHA-256 39c468870c365095…

MALICIOUS

PDF

43.1 KB Created: 2020-08-10 10:43:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 617d79c408d73165e3165b82225a2f9a SHA-1: adfcc0803d655b8bc3c74514f3cbbf7ef90d0fce SHA-256: 39c468870c365095d215d09af43a3185f2751b00cfd6595226b423555ca33362
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=acme+thread+dimensions+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though heavily obfuscated, contains the same malicious URL and a benign-looking title, suggesting a lure to trick users into clicking the malicious link. The presence of multiple embedded URLs and the redirector link strongly indicate a phishing or malware distribution attempt.

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=acme+thread+dimensions+pdf In PDF document text
    • http://files.admarc.com/uploads/1/3/0/7/130775795/gatumaduvuweli-setivas.pdfIn PDF document text
    • http://files.weiratherdesigns.com/uploads/1/3/1/4/131438114/witun.pdfIn PDF document text
    • http://files.erincmilhem.com/uploads/1/3/1/4/131437750/9827527.pdfIn PDF document text
    • http://fexidek.wagonwheelacres.com/uploads/1/3/0/8/130874317/lefanowuwarojatiwela.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/1/0436/0830/9923/files/7411405196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4949/2384/files/mla_citation_style_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1599/4529/files/65146500504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7149/5574/files/arabisch_leren_schrijven.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8325/5198/files/cinderella_short_story.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3947/3314/files/18320533087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6868/5464/files/46532274624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6454/0825/files/gilenegejefogoxorovudeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4242/1398/files/84252891394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4111/1712/files/77212546411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2627/6775/files/mafeboro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4857/4884/files/vuvexamuvoladovekot.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 2

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_off00006520.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6520 5352 bytes
SHA-256: fa9499ce211372d78011fcb83657c658f99418a1ae202f444ec97f9335986b6e
font_01_sfnt_off00007729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7729 12012 bytes
SHA-256: b1dbb47a9b70ebc986afaea8750c7de2dd01e036c93e85075a746f97a2072109

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