Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb20575f327628f0…

MALICIOUS

PDF

36.5 KB Created: 2020-08-18 14:22:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62f5642da014ccf0fffbb7c6941e7710 SHA-1: 1fe232b29589dff953555f5c0c4c69b45ae54bab SHA-256: fb20575f327628f087b31b346cb09d0512bd043499351cf50a71fef2e116e494
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=lover+birthday+cake+images', suggesting a lure to a malicious site. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the malicious nature of this redirection. 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=lover+birthday+cake+images In PDF document text
    • http://files.dunstablepropertyblog.com/uploads/1/3/2/6/132682070/vunesu_pigururobuxolaw_xugitisawijalo.pdfIn PDF document text
    • http://files.ieleaders.net/uploads/1/3/0/7/130776718/45c35ab516bd.pdfIn PDF document text
    • http://files.kodzobooks.com/uploads/1/3/0/7/130739084/mukig.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/1/0427/8085/2383/files/barley_water_nutritional_information.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8922/2045/files/16366381006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29331550606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3623/5160/files/jerovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6591/5032/files/guwabesepekodipuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/9784/5913/files/digital_storage_oscilloscope_block_diagram_explanation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0879/4525/files/klasifikasi_aspergillus_niger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4273/2192/files/mekunowog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9259/0236/files/dark_souls_the_board_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3964/5093/files/teori_biosentrisme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0587/8170/files/wall_street_excel_shortcuts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0313/4627/files/lesefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2929/1427/files/symantec_bluecoat_proxy.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_off000051e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51E5 5628 bytes
SHA-256: 565e42dd22bd6751213d52c1677850c3c492c5af31072b563bcb1b0bf6283f97
font_01_sfnt_off000064f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F4 9404 bytes
SHA-256: 7099a5b707555888692cc7ceb40955142f0c52d38f8ed64a01d18312cdcbe487

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