Malicious PDF — malware analysis report

Static analysis result for SHA-256 de441e342de3d269…

MALICIOUS

PDF

44.5 KB Created: 2020-08-08 23:30:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 602c70577ae4a8dce449f0caf93436d7 SHA-1: 30e90e144e31b4d4d534ef8f9cfa2636dafac3c3 SHA-256: de441e342de3d2697b4b139fe465a87311fdd1a003446324cfd575ba366a8260
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used to lure users to potentially malicious content. The document body, though heavily obfuscated, contains the target URL, indicating the primary intent is to drive traffic to this redirector.

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=geothermal+energy+advantages+and+disadvantages+pdf In PDF document text
    • http://xuvejufiz.wolfpups.org/uploads/1/3/1/4/131483281/saruwurituwuber.pdfIn PDF document text
    • http://files.meganwords.com/uploads/1/3/0/7/130776225/raserak-taxajenamoz-nikifivopaja.pdfIn PDF document text
    • http://files.sewmanystitchesvt.com/uploads/1/3/1/8/131857890/balegot.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/1/0439/7439/4014/files/tipobitugomuropoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5781/4431/files/zawody_po_angielsku_wiczenia_dla_dzieci.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nimapudusakodinufuzexive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2550/6208/files/b._u._m._s_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5639/0559/files/hi_state_abbreviation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8176/8864/files/27042888174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7160/2855/files/pidotigorotedakexodajidul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5448/1056/files/88464235347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8279/0552/files/php_combine_arrays.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50398535586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6713/7438/files/75421723950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2627/6775/files/22304563068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9494/1603/files/11415028308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1820/6887/files/7477539875.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 1

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_off00006ed7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED7 5648 bytes
SHA-256: 8a809f5f708259443f5b8d2cf3a3f0e984aec1502ccef4e70263a0e87f4733ef
font_01_sfnt_off000081ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81EC 10180 bytes
SHA-256: 6b5e13b3df6128302b215f7020a9c8ef1b434de4096a57836a1f31acf22e4905

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