Malicious PDF — malware analysis report

Static analysis result for SHA-256 69d8920b5ab5acc8…

MALICIOUS

PDF

42.7 KB Created: 2020-11-02 00:35:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 58a883ceefb1024a73fdbb14712c5a13 SHA-1: 302357d0282c26b33692c539c6cecf21241babc1 SHA-256: 69d8920b5ab5acc82eb26d5c8d3ef2dbbcdb68bb84d2b822c56be37d16b4db81
194 Risk Score

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.link/123?keyword=free+stealth+mode+spy+apps In PDF document text
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/bufaloxad.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1696278.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000068a7.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000068a7.bin)
    • https://uploads.strikinglycdn.com/files/2726e174-ca5b-4f93-bc4a-338ff57a4766/92495155400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4494/1223/files/bethlehem_girls_lacrosse.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e250fd9-01fc-489d-bdc5-8f7277acf158/68965491912.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d54b51d-26fe-4c18-b98c-3a4c3abe66ee/robotoolz_vector_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd054656-bcc4-4efa-84bd-1bca204f4272/77368098189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9595/6898/files/62672654672.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/ajanta_caves_information_in_marathi.pdfIn PDF document text
    • https://s3.amazonaws.com/tojabixefova/60744610187.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d8ad7be-999e-46e5-8890-51b86ba9671f/36290103171.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee7a82e1-1045-4d99-8997-8438e9df8a97/dowasosufewo.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/pebokuwoliwigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/8307/6262/files/69943050043.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 extracted file (font_00_sfnt_off000068a7.bin)

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_off000068a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A7 5256 bytes
SHA-256: 578ca773442f455a9f3c03bd85bcd96e030bf2d3dc02ff2165620a7a9bff5777
font_01_sfnt_off00007a62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A62 10560 bytes
SHA-256: 0175c47a2c61879f26914d5ceee519ca05df5b94ec528680273d603f25c4f2ad

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