Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0304cbedb1cf08b…

MALICIOUS

PDF

60.2 KB Created: 2020-10-13 04:12:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: d31724f88f0c73a52524d9b077f53284 SHA-1: dc36c9c8cce1a6518632a2d02118c12ab55aa471 SHA-256: b0304cbedb1cf08b306a73e2557afb72ed84d9d74abe9f9a2ab733a657359e8b
202 Risk Score

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://gettraff.ru/strik?keyword=cisno+portable+espresso+machine+instructions In PDF document text
    • http://pokiviwag.freshperspectivenews.com/uploads/1/3/0/8/130874161/jalujeroba.pdfIn PDF document text
    • http://files.sunsetridgeatlanesend.ca/uploads/1/3/2/6/132682607/d497e963.pdfIn PDF document text
    • http://files.shophhbstore.com/uploads/1/3/1/1/131163492/jazapaj_fatoluki.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ab10ae0-7e33-4eea-a419-ed58d056dc6b/87058728837.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a0e04d0-3c11-48b7-a04c-6a9aa41821b1/91022885673.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1abeae1d-5b30-4566-ac96-c8b33df7edeb/vilumej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c665d91-75e8-4742-b207-9945f5d8b2d8/gasujovurob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d73f160d-43e7-428a-a67b-faad1157ac65/dugizobuviwutelen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1527/4147/files/62999258027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2207/2480/files/toonami_dragon_ball_super_marathon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0491/8414/5574/files/buvukir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0179/1132/files/nyit_college_of_osteopathic_medicine_mission_statement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/6354/9338/files/75461807469.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc2abbb9-cc57-4a78-ae2b-bdf0c5516b21/53700226958.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b42fa8f-9bc6-477e-a15d-28ecdf223afb/26315831682.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/554ac19f-e0d1-486d-9f79-1c4c168a93ac/dezujumuwopotilitodig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe2958da-7108-4237-92d7-18b13a16971f/41611097006.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 6

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_off0000ae29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE29 5220 bytes
SHA-256: 0d35e82defce9209e253ae57b70c92583534cdf59fcaf6ee13041c7c9571b045
font_01_sfnt_off0000bfb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFB3 10408 bytes
SHA-256: f864506d5c18447f2abe561811ede9a3d01b37a4e1e146187a732ddb5fb60773

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