Malicious PDF — malware analysis report

Static analysis result for SHA-256 64206629bc616cb6…

MALICIOUS

PDF

52.4 KB Created: 2020-08-11 00:40:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c23affb5674148ff3e0191f5edbd8c80 SHA-1: 3efc941c8c2195a82f91cb972700ccdf74ac392f SHA-256: 64206629bc616cb612330faf2b6a600a3b9b3f30fd6cc64a3e32400c3db0dce2
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of an SEO link farm. One prominent link redirects through 'ttraff.ru', a known malicious redirector, to a PDF file. This suggests a phishing or scam attempt using a link farm to obscure the malicious destination. No scripts were extracted, but the presence of embedded URLs and the redirector link strongly indicate a malicious intent to lead the user to harmful 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.ru/pify?keyword=cantidad+de+liquido+amniotico+normal+pdf In PDF document text
    • http://fifilagim.naturetherapyonline.com/uploads/1/3/1/8/131856706/ratopelekadeni.pdfIn PDF document text
    • http://files.liftislandfashion.com/uploads/1/3/1/6/131606807/604476e2.pdfIn PDF document text
    • http://files.publichealthmuseum.org/uploads/1/3/1/3/131384789/a826b1b39.pdfIn PDF document text
    • http://files.sarahulan.com/uploads/1/3/1/3/131398253/6546742.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4924/5082/files/69265264068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1297/9879/files/ubuntu_automatic_logon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8590/3510/files/athlean_x_meal_plan_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pajakeveposemilakojataza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7003/7924/files/dibakapekut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6644/1376/files/d_d_eberron_campaign_setting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3588/5725/files/logopuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7720/6178/files/runezobesunepifazivaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4809/2323/files/fafijewekolonofodal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9722/6402/files/67167098928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6459/7397/files/amino_acids_classification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3542/5944/files/85477750777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7176/6690/files/33299120191.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000702c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x702C 3304 bytes
SHA-256: 7c54c13321a22b13e8c8cf75e560e9151677e82cfd7fb4553fa360d909f90a16
font_01_sfnt_off00007c11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C11 5156 bytes
SHA-256: e7ca25324bfcd5476a4f6d8795d9617e48909841d3098c95f766203bbd6bc672
font_02_sfnt_off00008d79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D79 11756 bytes
SHA-256: 8c6e9b3a1ee826398e0210a1ab169c631a0d37be8345b4bbb1d5f7c790033a31
font_03_sfnt_off0000b3a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3A6 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34