Malicious PDF — malware analysis report

Static analysis result for SHA-256 d614318300291e3b…

MALICIOUS

PDF

47.5 KB Created: 2020-10-02 07:40:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 27429ee78cdbe108eb19048be31245aa SHA-1: f3849c4905d97b60b9892f188e417b9c60756520 SHA-256: d614318300291e3ba638980044c0301df81cbe0e835e72253cca21e44bbcb49f
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=safety+stock+calculation+using+poisson+distribution In PDF document text
    • http://ximoj.northdevonmovingimage.org.uk/uploads/1/3/0/8/130813528/vimukog.pdfIn PDF document text
    • http://lanuze.artistskayak.com/uploads/1/3/1/6/131606289/1833365.pdfIn PDF document text
    • http://files.varsitycolorsgreek.com/uploads/1/3/1/3/131381540/9280678.pdfIn PDF document text
    • http://foloped.thequiltinggardener.com/uploads/1/3/0/7/130740598/92b5001f52ccf25.pdfIn PDF document text
    • http://files.feedplaylovepetcare.com/uploads/1/3/2/8/132814974/meripamowalub.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/1/0488/1645/5845/files/wizimupebubufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8646/6210/files/no_bernard_santa_clause_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0247/6190/files/2789611464.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c0ff45d-82c2-495b-b2a0-e0f4a68b5083/81101899138.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c651abc-0e10-46e4-99ff-b877ecda3896/48567505083.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff048c0e-6dca-4434-a28a-42cbb202fdb2/909235541.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60acc300-8710-41c3-83f2-881999c89983/lafejamegadez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/920fdc5f-5ee8-485a-98b4-34636a403eb0/86806398616.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c4941c5-33fe-4a3d-b37f-05e0127d083a/ladowobo.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 1

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_off00007368.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7368 5732 bytes
SHA-256: 2e804dbcef3e1f448739b07182512089909be743f128ce918fcf38f8e0737bd8
font_01_sfnt_off00008708.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8708 13220 bytes
SHA-256: cfce404e64049492b1256c4956e00f92e07aadfabfbc52074718303ed6734f78

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