Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd79a533cb6225a7…

MALICIOUS

PDF

45.0 KB Created: 2020-10-09 13:17:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: b34b536e564715f1375b87a9ec9e1692 SHA-1: bfbbe9cdae76ceb19448371320922dbff9e921b1 SHA-256: cd79a533cb6225a756f100149964ff488f004b7eee2f1df652c45a048e8881c7
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://cctraff.ru/strik?keyword=formato+de+minuta+de+reunion+de+trabajo+excel In PDF document text
    • https://site-1036858.mozfiles.com/files/1036858/sakilewap.pdfIn PDF document text
    • https://site-1037897.mozfiles.com/files/1037897/nasazokalotixepo.pdfIn PDF document text
    • https://site-1039800.mozfiles.com/files/1039800/lokixusirewibamasoti.pdfIn PDF document text
    • https://site-1039814.mozfiles.com/files/1039814/notaworominenerifovado.pdfIn PDF document text
    • https://site-1036702.mozfiles.com/files/1036702/15821455777.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/ddbe2e55-a2d1-4dbc-9fcc-24065097bb84/zevibubomiloxova.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6876bd8f-519c-48a5-a2ec-bc527bec37c8/pajinuwiwefowisudususefuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6317e75a-db03-40e4-a525-01b51da109fa/kutomud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/4209/8337/files/69562684782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/9894/7742/files/sagavodivejapixusadipova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/3886/8124/files/17762014643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1392/9122/files/44805802870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4433/4487/files/43945604117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/2718/8890/files/iroot_apk_atualizado_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4388/9058/files/mutated_zygomite_slayer_task.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2737/3990/files/49505717111.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_off000061f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F5 5028 bytes
SHA-256: 4efa4f2c3d7389574ec708f00df1c9ad784387e4c032083520cf28889f1ed570
font_01_sfnt_off000072f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72F0 11112 bytes
SHA-256: ed35a9d1e57bbde75547ad3f3e77036b5bf66b16b21ac17062f21bf2b3df634d
font_02_sfnt_off000096eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96EB 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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