Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d708413662053b8…

MALICIOUS

PDF

48.3 KB Created: 2020-08-22 04:23:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 051711b6da2aa345c2572e5e2fa5d8c2 SHA-1: 6ad36d3c1fac947e62aea4e2b5c398c1fe451396 SHA-256: 7d708413662053b80c68e4c0736e2bad1e0b4e328de83cb3894d6aa30fcb6c13
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though partially obfuscated, includes the same malicious URL and several benign-looking PDF links, suggesting a link farm or phishing lure. The ML classifier strongly indicates maliciousness, and the presence of redirector links points to an attempt to funnel users to malicious infrastructure.

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=aceptacion+social+y+cultural+de+la+informatica In PDF document text
    • http://waxuwitim.juliaalbain.com/uploads/1/3/0/7/130775350/pexawazasuwes_reforos.pdfIn PDF document text
    • http://files.altruswap.com.au/uploads/1/3/2/3/132303035/nisatapebapakubuvoku.pdfIn PDF document text
    • http://files.naturescape-photography.com/uploads/1/3/1/4/131455158/3480064.pdfIn PDF document text
    • http://liwebulo.richmondhillnaturopath.com/uploads/1/3/1/6/131606490/wibugarapomesinef.pdfIn PDF document text
    • http://rapibe.ourheritagehearts.com/uploads/1/3/0/8/130814020/6971688.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/1/0437/9561/1810/files/noxokuxoxaxasilawefur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1636/3927/files/lab_equipments_and_their_uses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6571/9449/files/from_here_to_eternity_caitlin_doughty.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4143/1464/files/vuxopamutetovomexetike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1760/9122/files/ladisuneje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9229/5332/files/tagaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/denikiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4847/5541/files/vofigivibimekirafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2985/4368/files/fitedelazabijena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0088/8469/files/wilitidasefigijizituwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5656/9249/files/risk_management_example.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 3

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_off00007bf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BF4 5392 bytes
SHA-256: 669def6105d16ff6af8b09382975aa6b1d1d3105541bc3c81f2bb83ca15ea324
font_01_sfnt_off00008e31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E31 11160 bytes
SHA-256: f770d851288facb342c838ba45a65c7cc693ee7c6f4a4a75d85f97f2513422f2

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