Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d0e2f041a909ea4…

MALICIOUS

PDF

40.3 KB Created: 2020-08-02 20:31:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d8d3844562584793d3f44240209153eb SHA-1: 6124fa6e6d8df6ba0cffeb124624beb01174de1e SHA-256: 8d0e2f041a909ea4aca30a177bf29570540f4e38336e0afddaf40e6ba13591f6
194 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs, many pointing to external PDFs. The primary malicious URL identified is https://ttraff.ru/pify?keyword=cruis+n+usa+n64, which is likely used to redirect users to further malicious content or phishing sites. The document body contains garbled text but does include the primary malicious URL and several benign Shopify URLs.

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.ru/pify?keyword=cruis+n+usa+n64 In PDF document text
    • http://files.nextgenplacebos.org/uploads/1/3/0/8/130814118/b8eb506d7.pdfIn PDF document text
    • http://files.raymondhaim.net/uploads/1/3/1/3/131380591/jozakefavofiwer.pdfIn PDF document text
    • http://files.slate870.com/uploads/1/3/1/3/131379899/6751116.pdfIn PDF document text
    • http://files.rocklandurgentcare.net/uploads/1/3/2/6/132681443/lodedudugum.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/1/0431/6997/2392/files/59085034366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/ponuxomezejimukadagabezug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8933/0325/files/56501778191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5530/7159/files/what_is_c_good_for.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8072/8224/files/81191300625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gamawogedeveredu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2491/6388/files/vuvosasokif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89709194360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9518/6851/files/sudojerelabugisesim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/9822312003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/1027733329.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_off00006126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6126 4796 bytes
SHA-256: 8df5c293e40c21ed4a25dbab9151c610050bb5b2df1f20fdeac0fcb21cabf83f
font_01_sfnt_off00007181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7181 10320 bytes
SHA-256: ce5ed6d8f638384dfd6f2f9ef53dc4b6493c5805a0aa3b41dd136b9b736784dc

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