Malicious PDF — malware analysis report

Static analysis result for SHA-256 13d7f025104751d6…

MALICIOUS

PDF

43.2 KB Created: 2020-08-03 00:10:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6ea25decf44439d3494d37bd5e74588 SHA-1: a2a614ce5aef5d4f43c2ef24474f54476d4ae437 SHA-256: 13d7f025104751d64f1e45ede46df817a525c82a86a29459fd0f77e5387cf700
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirectors and SEO link farms, indicating a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious. The embedded content, though obfuscated, includes the URL 'https://ttraff.com/pify?keyword=dark+souls+2+mad+warrior', which is also identified as a malicious redirector. The document body also contains this URL and numerous other Shopify links, suggesting a lure to download potentially malicious content.

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=dark+souls+2+mad+warrior In PDF document text
    • http://files.saugusxc.net/uploads/1/3/2/6/132695543/goloxiv-mired-zakobegoselaten.pdfIn PDF document text
    • http://files.hertssarc.org/uploads/1/3/0/9/130969470/sinegisiwexivonunof.pdfIn PDF document text
    • http://files.millbrookrotarydirectory.com/uploads/1/3/0/7/130775846/d99ea.pdfIn PDF document text
    • http://files.glendyyeung.com/uploads/1/3/1/8/131857305/902577.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/1/0428/9835/8432/files/75609531209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/95913502253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3544/3875/files/biological_psychology_james_kalat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6563/9069/files/86652584286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sazofafusogowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5034/4352/files/inherited_hemolytic_anemia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9775/9648/files/livojimulola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/nosoxakifuvib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6899/5222/files/zexebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2641/4748/files/66047441656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5272/8474/files/dumilogiwevanum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4624/8358/files/bufosaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1224/4134/files/vexabov.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 8

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_off00006b48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B48 5256 bytes
SHA-256: 6bbb5f261c0b22da8bb25265b9cd60f8decf2ee46aae698169453ce396a77d8c
font_01_sfnt_off00007d2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2E 10104 bytes
SHA-256: e8028c7829c17e32dc06034f797f2340bd68c0d5a84956128494e5757f9087c4

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