Malicious PDF — malware analysis report

Static analysis result for SHA-256 825a515bb31c75cc…

MALICIOUS

PDF

50.1 KB Created: 2020-08-01 10:29:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a416c43aca2dff112052683b4fa0f477 SHA-1: d2f8e3b3ee1110686dd4be8f29574eb7cc001b5a SHA-256: 825a515bb31c75ccef531e606b85e6633603a09c93fc04c75035d28c94cb0fe6
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, ttraff.com, which is likely used to funnel victims to phishing sites. The document also includes a large number of links to other PDFs hosted on Shopify, suggesting an attempt at SEO manipulation to increase visibility for malicious content. The ML classifier strongly indicated maliciousness, and the overall structure points to a phishing or scam campaign.

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=a+deeper+love+inside In PDF document text
    • http://files.brentfields.com/uploads/1/3/0/8/130815437/pukajorowis_somapopivubazeb_vevuxemobun_dexif.pdfIn PDF document text
    • http://files.hooverridge.com/uploads/1/3/1/4/131407369/bapexalenawavafebi.pdfIn PDF document text
    • http://files.blackwatervideo.com/uploads/1/3/1/8/131856877/a6847938.pdfIn PDF document text
    • http://files.jewellhjohnson.com/uploads/1/3/2/8/132816158/252b1d3f634b0.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/1/0432/2590/7368/files/88240125574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0385/3476/files/15193793921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/4476058953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5106/5243/files/what_dies_lml_mean.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/samabutikoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0350/1989/files/37415074859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0733/6857/files/95800333851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7668/0869/files/5802787686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9636/7511/files/vajukodezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4615/1078/files/dawigaximunej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4816/3735/files/gevizakenis.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E0 4792 bytes
SHA-256: 40c3dbc9ec1163e46d24a1d668f91df2fdbcc5a207e9fd874c1806bcc5dadc00
font_01_sfnt_off00007842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7842 14664 bytes
SHA-256: a543245db3557b5356b138fe64d76555bcb0b12131b35a5aa42bdeec9f4676fa
font_02_sfnt_off0000a682.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA682 16092 bytes
SHA-256: ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073

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