Malicious PDF — malware analysis report

Static analysis result for SHA-256 885ed8913ced08bf…

MALICIOUS

PDF

43.1 KB Created: 2020-08-12 18:13:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2e7a475d36f4d7d6ffce12e3ff46472d SHA-1: ac41630d0b0d33825b2d8abef9f546cdf27c2036 SHA-256: 885ed8913ced08bf81c515ade06a3650d1671e8402434008c2c302fe0b440a8c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links, many of which point to a redirector service known to host malicious content. The primary redirector URL, https://ttraff.com/pify?keyword=bach+adagio+bwv+974+piano+pdf, is explicitly flagged as malicious. The document appears to be part of a link farm or SEO manipulation scheme designed to trick users into downloading potentially harmful files.

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=bach+adagio+bwv+974+piano+pdf In PDF document text
    • http://files.louisianacareerdevelopment.org/uploads/1/3/1/4/131453084/366453.pdfIn PDF document text
    • http://files.pottingwithpotter.com/uploads/1/3/1/1/131163969/4698086.pdfIn PDF document text
    • http://files.joneswedding.vip/uploads/1/3/0/7/130776386/4903328.pdfIn PDF document text
    • http://fofided.educationinno.org/uploads/1/3/1/4/131453109/7769863.pdfIn PDF document text
    • http://makaxif.nourishdiy.com/uploads/1/3/1/1/131164250/147720dd4332.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/1/0439/2307/9323/files/applied_physics_1_first_year_engineering.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4275/7029/files/kikatefisetenubak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5649/4757/files/42522121985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8232/3870/files/netbeans_java_gui_builder_tutorial_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9237/6741/files/fapezajitexazolupef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0681/9493/files/95283086364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4388/9058/files/17760536989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9118/2243/files/ravoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1141/3915/files/viwumazogokiwerud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72518400380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/dugabivasujogi.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_off000068ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68EC 5776 bytes
SHA-256: 34fc25111d3d00d7a0f7e7eb7f302427e9cbee86e70472bb7b7d7748217c4c80
font_01_sfnt_off00007cba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CBA 10244 bytes
SHA-256: 9b7507e24cccc10a896a02d26b8a17b5f9e7729e42f05546f8e76248048af05d

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