Malicious PDF — malware analysis report

Static analysis result for SHA-256 510c883748dcdf45…

MALICIOUS

PDF

60.2 KB Created: 2020-10-07 18:32:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b1d0a7fb08b19597d3fd7a87882fb2d8 SHA-1: 4903d9fd1f659c56d2d72ddacb709e82e14827dd SHA-256: 510c883748dcdf456de8e195cf8caf1f55519491e81b1b147d671c2624f2c661
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://ggtraff.ru/pify?keyword=12+steps+and+12+traditions+step+8 In PDF document text
    • http://lobaper.guardtoursystems.com/uploads/1/3/0/7/130738962/fusodudutu_fafizilesa_josuxobab.pdfIn PDF document text
    • http://files.deathpartyofalberta.ca/uploads/1/3/1/6/131637886/dodugulodetorowej.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/6883d050-4f1b-45c7-b328-3bb4140148a7/93040800424.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97b2e3ff-7fce-48f9-bed0-6a47c552aeed/gavolapexigi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6b9fa20-9b26-4dc0-b527-91c10cae3147/85558909132.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/404741ea-1407-47e3-8fa4-9efda4f7dd3a/13474175370.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/517fd000-b166-4ae4-bfe4-fd300fd3e272/takitozojewujugonibawit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12081ca0-2d52-4a85-a92f-ae13eb3a96d4/71615786913.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ae9ef89-5d63-4f89-9366-bb90cbda4995/dexegetovivonow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7427/2924/files/2002_mustang_gt_manual_transmission_swap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/2941/7112/files/tax_geek_tuesday_263a.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000af19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF19 5204 bytes
SHA-256: 26c945fc98cae8537f0d149cd59c00d3e4b5199dc6266eb4d1a87664f6aa2c01
font_01_sfnt_off0000c0d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0D7 10548 bytes
SHA-256: 90976c4a852eb72ddb60e8d21322ffb168672134a58bcdad11a8a1af854d7a2c

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