Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb7edca3dbd13648…

MALICIOUS

PDF

42.2 KB Created: 2020-08-13 21:44:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ab60629ed27d1b05474584882a34b1a SHA-1: 2699a2d0e74039efd8eda81bcf1f377cf12c0502 SHA-256: bb7edca3dbd13648d5c0433221b5f6d13c0d9d818574cd930ad151aba2e8d9c7
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=transforma%25C3%25A7%25C3%25B5es+isotermica+isobarica+isocorica'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external PDF links, many hosted on Shopify. This suggests a campaign focused on driving traffic to malicious sites or potentially distributing further malware through these links.

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.cc/pify?keyword=transforma%25C3%25A7%25C3%25B5es+isotermica+isobarica+isocorica In PDF document text
    • http://files.bellevilledistrictkennelclub.com/uploads/1/3/1/4/131454986/3851762.pdfIn PDF document text
    • http://files.ebenezerunitedchurch.ca/uploads/1/3/1/6/131606262/mozetakopek_bebeniwagawunos_xusimuk_josuxasa.pdfIn PDF document text
    • http://files.darajakenya.com/uploads/1/3/1/4/131483020/40d8164a7f99a.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/1/0431/6617/1285/files/15868883268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9113/2577/files/77821905151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57355052908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6661/4175/files/thinking_in_java_latest_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7813/2636/files/95856896558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0482/9602/files/13880031131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5731/4977/files/anne_bronte_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3353/4357/files/coronary_artery_disease_risk_factors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2834/8060/files/can_t_help_falling_in_love_chords_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/vegetarian_keto_recipe_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1367/5928/files/structural_isomerism.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 2

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_off00006019.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6019 5484 bytes
SHA-256: e819f38890c1f6548ddf4ef5ceb964a364a57d22a9b0f5235a5a212c2cfda315
font_01_sfnt_off00007215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7215 12724 bytes
SHA-256: 319263303943ddcf162b2ad0bd570c4e2b0f6769b04fd90f629c8b0870a0f8fb

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