Malicious PDF — malware analysis report

Static analysis result for SHA-256 027be403b5a18836…

MALICIOUS

PDF

44.7 KB Created: 2020-08-14 07:31:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06ec4d6ea8ab98956c0e894b826c8d8c SHA-1: daea19b46ebf9b528d27624670e2c07da622030e SHA-256: 027be403b5a1883653b66419852f9af2f9115c8d4db36da2bf3ca3884032b2b5
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to drive traffic to malicious infrastructure. The embedded URL 'https://ttraff.ru/pify?keyword=intermolecular+forces+and+boiling+point+worksheet' is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links to Shopify, likely part of an SEO spam campaign to distribute malicious content.

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=intermolecular+forces+and+boiling+point+worksheet In PDF document text
    • http://remirepik.c3pojhmi.com/uploads/1/3/1/3/131381006/6b6f72c627a.pdfIn PDF document text
    • http://bitemuba.jesspurtellyoga.com/uploads/1/3/1/3/131380183/kugapipegine.pdfIn PDF document text
    • http://files.academyjuniors.net/uploads/1/3/2/6/132696233/rowebemuxo-bijejowapoja.pdfIn PDF document text
    • http://tejujurev.extremeimprov.co.uk/uploads/1/3/1/1/131163908/1659479.pdfIn PDF document text
    • http://budoz.antigonekoutalieri.com/uploads/1/3/1/6/131636948/zevus-donivus-lupeze.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/1/0431/7157/8024/files/masofarurujiwosiko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5037/7126/files/spoken_english_conversation_through_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5207/1074/files/sotafunutivodinikokojuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1878/6728/files/10796973092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0508/2776/files/94460201842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1261535930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48466687054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3260/7900/files/68294901796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/0645/3928/files/causal_inference_in_statistics_a_primer_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36920421444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8228/5216/files/reinforced_brick_masonry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8512/2984/files/kangen_water_benefits.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 5

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_off00006e90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E90 5804 bytes
SHA-256: ccae3239ed6dff5106c11347c0a56dc45b7ae8ba47a0d5bd59c30f575ba16bf9
font_01_sfnt_off00008225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8225 10364 bytes
SHA-256: 7278c604c6d7f83daa345cad7fde4950b9862b5ddd431c8432488f779b073954

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