Malicious PDF — malware analysis report

Static analysis result for SHA-256 77dda2612000e905…

MALICIOUS

PDF

42.1 KB Created: 2020-08-03 21:03:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 337cea72f01b1746f3d982473118d043 SHA-1: d5d86eb18fd9487ec5371d7aade6826d30fbb5d1 SHA-256: 77dda2612000e90523259101bf8172dc027f462b43189403201fae40b8a3af01
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service that is known to host malicious content. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=statistical+learning+using+r+pdf', which is also flagged by heuristics as a malicious redirector. This suggests the document is designed to trick users into visiting malicious sites under the guise of providing a PDF download.

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=statistical+learning+using+r+pdf In PDF document text
    • http://files.selbyvillepetandgarden.com/uploads/1/3/0/8/130813055/3436fe13d8aa0.pdfIn PDF document text
    • http://files.jartjewelry.com/uploads/1/3/1/3/131380308/f87bf5.pdfIn PDF document text
    • http://files.indigolightpath.com/uploads/1/3/1/4/131454034/12bc1844707.pdfIn PDF document text
    • http://files.amandamarkle.com/uploads/1/3/1/8/131871484/jusurinasolalere.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/1/0438/5393/8853/files/62063605656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51906755497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0799/0169/files/fibufoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4294/6724/files/85258688438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9403/5880/files/92_cadillac_deville.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6917/8017/files/28817407578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9050/1020/files/lejagamelozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99324429390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9324/5590/files/55533226180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6589/2261/files/39693711826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2457/9751/files/how_to_convert_to_vertex_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0510/0707/files/70412586340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5657/0266/files/guvanozazopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9112/4643/files/74943139232.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 7

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_off00006602.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6602 5424 bytes
SHA-256: fabd11d9728e4a2e97635c84879ab14f2fc9c224d988de49517f16733adeb75a
font_01_sfnt_off00007881.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7881 10272 bytes
SHA-256: ce7972c28f2234f732e4ae7e8bfec99728b127acbdbfbeffca86e980db615274

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