Malicious PDF — malware analysis report

Static analysis result for SHA-256 69afba9a5e554a78…

MALICIOUS

PDF

46.7 KB Created: 2020-08-06 02:15:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf9caa94a068d31706fd13c3ce22e06a SHA-1: 87761041394639726a17491af8d6ad6039aed0ea SHA-256: 69afba9a5e554a7802cdfda00a53eae2f6965023b5d96176807f33ee3b2ab7e2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are part of an SEO link farm designed to redirect users. The primary redirector URL, https://ttraff.ru/pify?keyword=types+of+foundation+in+civil+engineering+pdf, is flagged as malicious. This suggests the document is a lure to drive traffic to malicious infrastructure, likely for further exploitation or phishing.

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.ru/pify?keyword=types+of+foundation+in+civil+engineering+pdf In PDF document text
    • http://files.shanteltampagal.org/uploads/1/3/1/3/131378952/98ea3bc8.pdfIn PDF document text
    • http://files.guyinspired.com/uploads/1/3/2/8/132814303/zaras-mobalafadepij-raguwalef-dojagipamoriw.pdfIn PDF document text
    • http://files.bugtug.org/uploads/1/3/1/0/131070651/9914927.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/1/0437/8080/0674/files/one_dimensional_array_in_c_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5774/9917/files/44256259038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/15715777136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3547/6636/files/nitaxiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87664315042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6703/8106/files/pipapizazur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1290/7423/files/gazubolumexurepurozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7815/6449/files/47371505635.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovovowegafakaroseras.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 5

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_off000078f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78F5 5432 bytes
SHA-256: d521c3e151134053d6f49433bfb6f82b45620331bde10f3a25a2009c7692e2a4
font_01_sfnt_off00008b94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B94 10256 bytes
SHA-256: 0218e1a60bd039390d6b6a3334798ac7dd76490a72db5d87efca9619346324e3

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