Malicious PDF — malware analysis report

Static analysis result for SHA-256 67cfd25b94f55104…

MALICIOUS

PDF

42.3 KB Created: 2020-08-23 10:23:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59af53ef0ec95977bd6e6bc69e337e8e SHA-1: fd73a67dd54fb9b2833895d54f95b51570b4ef56 SHA-256: 67cfd25b94f55104d624ab14e22fffa84149bf2f39cd4e8f9123190df6995326
194 Risk Score

Malware Insights

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

The PDF file contains numerous links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though partially corrupted, includes the same malicious URL and a benign-looking title, suggesting a lure for users to click through to malicious content. The presence of multiple PDF links, including a link farm, indicates an attempt to distribute malicious content or engage in SEO manipulation for 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.cc/pify?keyword=malformaciones+congenitas+causas+geneticas In PDF document text
    • http://files.jessicaouellette.com/uploads/1/3/2/6/132682281/zibavuzamebavad.pdfIn PDF document text
    • http://files.buyvalentusproduct.com/uploads/1/3/0/8/130874683/lanuma_nozakuzonadiros_kidozuputajog_bagugizaluzi.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/1/0428/7630/5564/files/88314158058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8046/6080/files/tegukijezon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6623/6834/files/xemivajodubepefite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9664/4511/files/suddenlink_san_angelo_tx_tv_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3767/1075/files/customary_units_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0371/5489/files/koxidepuzibiwurukav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5883/0229/files/siponuwuvosuxexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12729031526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/93234490286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/9104/5026/files/gupujofasag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2278/6466/files/dave_ramsey_free_credit_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6249/2324/files/xizasuxigizesamuvonu.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 2

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_off000064ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64AC 5208 bytes
SHA-256: 35368e23490575e4a724642621f15d9a12b795f56cb2d7c2512f089e9c0f5a9d
font_01_sfnt_off0000764f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x764F 11164 bytes
SHA-256: c5728bf45a95fd2e45ae24f3d5ca4a02116d7032b12a137f6376949dcd22992b

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