Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb6ee9daf2cfa8aa…

MALICIOUS

PDF

34.0 KB Created: 2020-08-06 13:04:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 93190d40345af98ac3bf79ae5e93f287 SHA-1: 6eeb1f94fae9d5709823b12fc5151d7ea323caf7 SHA-256: fb6ee9daf2cfa8aace045cdfd351e7cf5c8fafbeb24385564ffa39952d1ea881
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources, a technique often used for SEO poisoning or redirecting users to malicious sites. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to SAT math and includes the URL https://ttraff.ru/pify?keyword=cracking+the+sat+math+1+subject+test+pdf, suggesting a lure to a potentially malicious site. No scripts were extracted from this sample.

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=cracking+the+sat+math+1+subject+test+pdf In PDF document text
    • http://files.ylrart.com/uploads/1/3/0/9/130969628/e9bfa4.pdfIn PDF document text
    • http://files.tinagutierrezartsphotography.com/uploads/1/3/0/7/130775383/remax-taxopugazaledu-fuluxibejurifuj-lavosiraleset.pdfIn PDF document text
    • http://files.romanhoering.com/uploads/1/3/1/4/131437648/69ef1bf27211dd.pdfIn PDF document text
    • http://vifazes.jungw8.com/uploads/1/3/1/4/131454106/9833729.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/1/0432/6686/7362/files/luwegeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1578/2048/files/62380961687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2230/3911/files/nilipukizoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0998/1085/files/xibatinina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/lobisuwesezerepif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90841244024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5093/2123/files/82838014229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3242/0250/files/dyson_dc17_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/mugexejodagisimux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6593/3985/files/96656866122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3709/0211/files/dolokinazubewutig.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_off00004658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4658 5772 bytes
SHA-256: f20f678725b974d1a89d8017e341cca4b636d42f2b8d9a77d1cc7317a341fbbd
font_01_sfnt_off000059dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59DC 9728 bytes
SHA-256: f751be2c39739394d2698a1f1fb79c1c6cde0110c01382595b0bd24807831d43

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