Malicious PDF — malware analysis report

Static analysis result for SHA-256 76a7716466a40b63…

MALICIOUS

PDF

66.2 KB Created: 2020-08-11 15:38:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ba0307f302a34f6f263d8c10894703a7 SHA-1: 3d50700eb07be2c05a03ba2c8ea09dc938b600c7 SHA-256: 76a7716466a40b63c5621e06f3bda5f92e01e17d72d7d7bc2214e8d88aae26c9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. This indicates a phishing or scam attempt, likely to lead the user to a malicious site or download further malware. The presence of many SEO-optimized PDF links suggests an attempt to game search engine results for malicious purposes.

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=auditory+verbal+therapy+techniques+pdf In PDF document text
    • http://fagiwu.gbpeace.org/uploads/1/3/0/8/130874359/05cd2.pdfIn PDF document text
    • http://files.yogitreewellbeing.com/uploads/1/3/1/6/131636745/fotej.pdfIn PDF document text
    • http://jojedu.chhsseniors.com/uploads/1/3/1/4/131438216/f182099f364d0.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/1/0432/1899/3307/files/94992970071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/canadian_universities_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9183/6566/files/19141842402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1726/3510/files/rizixereduvurafab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7055/3250/files/vigosatekudobexulef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27621352833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wojilezufaguxulidumusad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4737/7301/files/xubino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/nunuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9883/2037/files/50559935933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2809/4882/files/82576806965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0112/4760/files/62126541540.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 4

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_off0000c4ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4AC 5660 bytes
SHA-256: 5706d9dfd748751e5e176bb41ca0ed2b2a3eeb10f0cb7935f63a70e6fac2dc6e
font_01_sfnt_off0000d7e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E0 10512 bytes
SHA-256: 381ec5e21bf84b6bbf8b76ac77c9b4682f282000ef8abb82f96b79cec563f41a

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