Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d87b66fd0d3800f…

MALICIOUS

PDF

49.0 KB Created: 2020-07-31 10:53:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec019b42aed40700bcb1621f0254e3ae SHA-1: 48fa45f4e51d835af8fe52c311108dc36272a77b SHA-256: 3d87b66fd0d3800f6104ac480d84aec155d43b58e546fe84c2e2dde73b672059
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in conjunction with a lure document titled 'Fiche de paie octobre 2020 pdf'. The document also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm for SEO poisoning or malware distribution. The ML classifier strongly indicates maliciousness.

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=fiche+de+paie+octobre+2020+pdf In PDF document text
    • http://files.apostolicdeliverancefive.org/uploads/1/3/1/1/131163904/2916a.pdfIn PDF document text
    • http://files.blinkgatproducts.com/uploads/1/3/1/3/131398308/6133949.pdfIn PDF document text
    • http://files.tynksgemstonedesigns.com/uploads/1/3/2/7/132740415/7381d2f1749d4.pdfIn PDF document text
    • http://files.stoneharborpawprints.com/uploads/1/3/1/3/131380008/e499c118d72ae.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/1/0429/8519/3625/files/bapilujiwibave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9072/9377/files/51101002739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7764/0092/files/bipiwijimub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/kunorulalapasidibulekenem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9280/3744/files/pojosuzefosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5627/5362/files/77050930618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4741/files/gaxenixizasanurex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2577/4245/files/57957789221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8034/3961/files/51028516601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6718/7108/files/58795599889.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_off00007d49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D49 5084 bytes
SHA-256: 1559b214e926dd9378e1f6589e4ce1b45e34b5b869586e53ee57b7f3fc3d0ac1
font_01_sfnt_off00008e99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E99 12552 bytes
SHA-256: 60004d083107438374277634bd6ae0ca82aa4b86fd2104de5de53a74434ca7fb

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