Malicious PDF — malware analysis report

Static analysis result for SHA-256 322d3af85d9b34fe…

MALICIOUS

PDF

53.5 KB Created: 2020-10-02 13:23:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3ce90f220348d0574354a7c5f807a953 SHA-1: 226a75167c6727c495866ee0c32688b7ad443686 SHA-256: 322d3af85d9b34fe462c29de8aaf76272e1aee8c9eda0bcbe6c4c596e19dbdd7
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=carte+fause+avec+argent In PDF document text
    • http://denupirij.creasyspeaks.com/uploads/1/3/1/4/131438539/3736529.pdfIn PDF document text
    • https://site-1036960.mozfiles.com/files/1036960/sevekixenepeve.pdfIn PDF document text
    • https://site-1040516.mozfiles.com/files/1040516/78967753107.pdfIn PDF document text
    • https://site-1037057.mozfiles.com/files/1037057/33858387592.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ae989b7-cdae-4cc1-8c74-221b8ab2c295/43585721944.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87fc092d-ea38-44e5-8e23-49b1b09f0424/86378256168.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a154f602-9da5-41c6-830c-6dcb237b9c76/52182954301.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0825f5bf-5261-48c4-9688-14596645b4b4/10890981456.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49c8efb0-f9cf-4992-bcb7-76188bc0946e/wuzewesozuzipudig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/5437/0468/files/99248960715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/1019/9199/files/digital_advertising_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/3174/3648/files/8561770348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/3895/2610/files/97867465173.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008374.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8374 4984 bytes
SHA-256: 9b94e5d7bcdb32f1ccbaecbc37ac9f91da839eafdde3bdec7c7a43b0ef35a4bb
font_01_sfnt_off0000947a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x947A 1800 bytes
SHA-256: 6d2a3a16cc464ce72cf05976c7f96a31c93af2202e0dc760c37a694345e222ee
font_02_sfnt_off00009d0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D0A 13596 bytes
SHA-256: afb3669b0df05a50be7cdd7e8de8f3160bd82bc63ab97d512fc67ff5d6ba4406

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