Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b90a47614c3005f…

MALICIOUS

PDF

45.7 KB Created: 2020-08-19 21:20:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a76ec07b72a949c1e38f6b302b68e50d SHA-1: 30ef31b758e247ecb34d5ecc77a448116dd144b7 SHA-256: 7b90a47614c3005f06965ada193a6d52a99ba58814d8cf3cdad9fab989c0d28d
202 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDFs, many of which are hosted on Shopify and appear to be part of an SEO link farm designed to funnel traffic to a malicious redirector. The primary redirector URL is https://ttraff.ru/pify?keyword=first+page+of+report+writing, which is flagged as malicious. The document body also contains this URL, suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=first+page+of+report+writing In PDF document text
    • http://files.marnacurrie.com/uploads/1/3/0/8/130814611/312e132f.pdfIn PDF document text
    • http://tezesafig.coachshi.com/uploads/1/3/1/4/131438641/fetoxomis_zanetijewakimig_vowumofovujavip.pdfIn PDF document text
    • http://files.carossell.com/uploads/1/3/1/4/131454986/848ad808c0ff1e.pdfIn PDF document text
    • http://minosig.modestmayboutique.com/uploads/1/3/1/4/131406082/matebo_bokevexixip_gatefazujudurel_malegawij.pdfIn PDF document text
    • http://files.thehouseofsufyan.com/uploads/1/3/1/4/131407802/6aec00ca67.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/1/0435/1960/6936/files/54059132912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4324/9576/files/beauty_and_the_beast_script_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6408/2073/files/chrome_for_64_bit_os.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45251784546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8846/0441/files/kujod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6237/0210/files/udemy_certificate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/timilutumitaluk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sobobubujuwin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3177/3852/files/cds_ota_syllabus_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0387/0375/files/audit_report_icai.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 4

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_off000076a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A6 5084 bytes
SHA-256: b1abca05a6e6b41e2e78ccb3bbfb597d2cf54372e11a08538e6f6796725ad557
font_01_sfnt_off00008819.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8819 10028 bytes
SHA-256: e10d2c3ee5014a56e8ddd34399e78e03c63a39ddc5361ed4949db25df3774f2a

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