Malicious PDF — malware analysis report

Static analysis result for SHA-256 068b0d5fba366b5b…

MALICIOUS

PDF

44.1 KB Created: 2020-10-06 14:10:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: b4e42bd0ad31a9663cdb13642df9fb95 SHA-1: 7e19ec07120d398cd4cea02d95d426f001d0ecb6 SHA-256: 068b0d5fba366b5b2e987587919489195f51ed4c903b32c4566e5f2b61cf83f8
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://ggtraff.ru/strik?keyword=building+construction+process+from+start+to+finish+pdf In PDF document text
    • http://tokiso.frigatebirdfishing.com/uploads/1/3/2/6/132696212/lajenuv.pdfIn PDF document text
    • http://files.bariatricketo.com/uploads/1/3/1/6/131606420/4503881.pdfIn PDF document text
    • http://zimawob.nmpstag.com/uploads/1/3/1/3/131397997/4052b925382a63c.pdfIn PDF document text
    • http://files.californiatradewinds.com/uploads/1/3/0/7/130776519/xurupususik-dovatikaku-powikajusa-rararomig.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/02f2c108-91a4-4174-9b29-ceaf9667e176/34197566851.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcd7ce04-2f9a-4f58-80e2-fc4dcaeb09c0/62281977418.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b067508-7fb2-4811-ad43-7326e4d34c6a/67157729800.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36af04a8-1f4e-4b7c-9855-dabfd48196f4/vepinexaketurokufe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5cb3cf2-58f0-4205-99b7-201db605f770/41704897651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/0515/8049/files/72395841468.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d053499d-64ad-4b62-9538-9d8606b5559d/12969675920.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a0e3c25-d4c8-489f-aff1-5c2baa97d1fd/dumujirajumedegiputi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/058a9e43-fbf1-4f93-a25e-18d7a0ff2e1c/31641400797.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 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ed2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED2 5500 bytes
SHA-256: e8f1d3e26093cca4435afdba61f8b84ef52a4482d1b6a1c6c6ad496307af1560
font_01_sfnt_off00007151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7151 10456 bytes
SHA-256: 66c8a89b021d65115f1d809cf17582afe771e2d347d83458b05c723bf3e3a967
font_02_sfnt_off000094eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94EB 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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