Malicious PDF — malware analysis report

Static analysis result for SHA-256 4769745de397acdf…

MALICIOUS

PDF

35.9 KB Created: 2020-08-03 18:39:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02bd4fadb059c06c5403ac26b88707d5 SHA-1: cef032f35710da705314fd6f511837f4c0129ba5 SHA-256: 4769745de397acdf02f584102e84622fe993ee31b6afaa9d3ad05e36dd822216
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier strongly supports the malicious nature of this PDF.

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=schindler+s+list+violin+sheet+music+pdf+free In PDF document text
    • http://files.sjcacademy.com/uploads/1/3/0/8/130814390/1049087.pdfIn PDF document text
    • http://files.teachforthebroadestreach.org/uploads/1/3/0/7/130775292/0d8bec5f.pdfIn PDF document text
    • http://files.hingham-therapy.com/uploads/1/3/2/6/132681033/tevifavukelo.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/1/0429/9702/2879/files/miwaranav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tokon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1916/5086/files/zaferegazusuxilabodudiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8673/1681/files/13582968337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7351/9272/files/51995851273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/fibonupakewukativiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3105/0915/files/67465536684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1570/8580/files/78870892937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5103/1464/files/1652717932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5480/7717/files/poe_basalt_flask.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69440205977.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_off00004d21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D21 5348 bytes
SHA-256: f3ea4a46ca6246914c75d1c9b1e7dac7569bc60e8fb540259d6a9e3c62fa5d33
font_01_sfnt_off00005f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F32 10456 bytes
SHA-256: 3ed964dd7761a35bd1fe2b3513976fa0db9f062e2bdbd7a300a67998937965a5

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