Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cd0b5e1ade0bd79…

MALICIOUS

PDF

55.8 KB Created: 2020-08-15 10:41:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 65cb17632d377991b601852012326c8d SHA-1: 06b7acb5788f8ce81bc4596233b126ddbcd694c6 SHA-256: 3cd0b5e1ade0bd79fa1c56165e088b5ba10219e6f1f61bd4fba38069523b89a4
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=behringer+xr18+edit', which is likely a lure to entice users to click on a malicious link. The PDF also contains a large number of external links, many hosted on Shopify, which is characteristic of SEO link farm abuse.

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=behringer+xr18+edit In PDF document text
    • http://robiki.rashadsofly.com/uploads/1/3/1/4/131452845/2dcb00f808.pdfIn PDF document text
    • http://walerow.bonafidefiction.com/uploads/1/3/1/8/131871864/9d2ae30b55.pdfIn PDF document text
    • http://files.mwpto.org/uploads/1/3/0/8/130813821/nizokixa.pdfIn PDF document text
    • http://sukalajal.danielalexandermatthews.com/uploads/1/3/0/8/130814328/58daef9a31.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/1/0431/2681/6932/files/25552712095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4828/4839/files/77_brain_teaser_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/xapewagejetarap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0981/7251/files/20198076984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8996/1884/files/24142045976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0356/6486/files/90882671022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9224/5666/files/candlestick_patterns_bangla.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4324/9563/files/75354897710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/4998718819.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000086c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C5 5028 bytes
SHA-256: 6904dc1ece65798e2320e9bc81eabd62034b6dc54fca42a36902e6c85f6f1cf3
font_01_sfnt_off000097e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97E2 10996 bytes
SHA-256: b4fe8d2de583651fb521b6465c44ae2714cf83a6aa2d3355c08db73034841cf2
font_02_sfnt_off0000bd03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD03 16288 bytes
SHA-256: ef0fe5e4c3df87daa3c22f420b1c38346ade548d775f49ca8892d494fcc58392

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