Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f0f754ff124b5bd…

MALICIOUS

PDF

70.8 KB Created: 2020-08-10 03:20:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3078593cd6e5b46584bd8eac69dd3988 SHA-1: 397bef3cba07966cd9c6bf62f0d9ef089c488177 SHA-256: 3f0f754ff124b5bd46418845d575a55e0fdd9acababd33df33d2f1adde85ad36
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.com/pify?keyword=psicologia+conciencia+pdf In PDF document text
    • http://vikaxe.personalgriefcoach.info/uploads/1/3/0/9/130969204/c343d0f48bd.pdfIn PDF document text
    • http://xoladak.invernesswhiskytours.com/uploads/1/3/0/9/130969754/f51ff.pdfIn PDF document text
    • http://files.artistdscott.com/uploads/1/3/1/3/131384492/3072396.pdfIn PDF document text
    • http://files.sixftswellspress.com/uploads/1/3/1/6/131637701/wixatezak.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/1/0432/4245/5195/files/faxesavujodim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6597/4690/files/8881474161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0557/4309/files/53618880023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/57809017277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6646/6216/files/xixux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5602/9093/files/arbeitszeitgesetz_kraftfahrer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9183/6571/files/pathfinder_mythic_realms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6982/3383/files/65882964959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/gememis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0976/8600/files/jugefefos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5621/5702/files/caprice_24_john_williams.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2901/8262/files/kagunaguzivix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/filupanigikokoxod.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_off0000d589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD589 5228 bytes
SHA-256: 409d663721a52a09824eab0f74fa71977c5eed099804f857e5b0b9dd680ec690
font_01_sfnt_off0000e770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE770 11364 bytes
SHA-256: a675657c28e4ef37e90633542f0ee0ad0dc7069d8485e560dcb7308e493aa9f8

Open this report in the interactive analyzer, or submit your own file for analysis.