Malicious PDF — malware analysis report

Static analysis result for SHA-256 edf12a30854e3a81…

MALICIOUS

PDF

44.6 KB Created: 2020-08-23 18:06:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5b40c78015f01e5bab00b8df17fc78a3 SHA-1: 3214cffe0269d93c6aa82c447288a19a292c2246 SHA-256: edf12a30854e3a81d0a1e59a13acdcb2085f75b566a9edc902930285829b96d6
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.ru/pify?keyword=inflatable+mattress+reviews+consumer+reports In PDF document text
    • http://files.philiprodrigues.com/uploads/1/3/0/8/130873855/pedilenaxozefesi.pdfIn PDF document text
    • http://files.hanoversymphonyorchestra.org/uploads/1/3/1/3/131384589/894ec.pdfIn PDF document text
    • http://vowekun.endpointtech.com/uploads/1/3/0/7/130738970/7338300.pdfIn PDF document text
    • http://files.cantysbookshopfyshwick.com/uploads/1/3/1/0/131070712/dizafibavusox.pdfIn PDF document text
    • http://files.anengineersblog.org/uploads/1/3/1/4/131438461/b1a9c379f724.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/1/0432/2508/8168/files/pixikewen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6588/5351/files/lipapegovunodeworikib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1052/2268/files/9262374080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2838/0839/files/tudo_sobre_cancer_de_colo_de_utero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3201/0152/files/vaxukujujesenawunula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0807/1576/files/zebobefosazizufikikeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4116/8283/files/sikitatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2093/4558/files/gst_manual_with_gst_law_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/5338/3581/files/78544895518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8921/6163/files/kobatozobibaxixil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/vatamaxotakufajulaloxud.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 4

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_off000071d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71D3 5388 bytes
SHA-256: 0ff8a96eb14a89ac27d09fe7a8317c5ad54c02d930cc09bde48dc96508d5c026
font_01_sfnt_off0000841a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x841A 9612 bytes
SHA-256: a21ca84d86bc943ccecf5720323d249627c2e18cebdbe7eca4370871e940890d

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