Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2cc09ddadef1c2…

MALICIOUS

PDF

41.2 KB Created: 2020-11-06 04:48:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 6dde4ca9bb3321e533754200ff4215d6 SHA-1: ab09890e75f60d6ad90a01abf694b1169be94327 SHA-256: af2cc09ddadef1c2077af134050800a3b317f5a5327095ecb7268f653fa7b431
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://traffmen.ru/123?keyword=make+a+image+transparent+online+free In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369760/normal_5f94511ab3e88.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393925/normal_5f923cebe6095.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367299/normal_5f8960856a8e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366007/normal_5f89c3133eaf9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404990/normal_5f99b0f32e712.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://cdn.shopify.com/s/files/1/0477/2265/9996/files/descargar_snapchat_para_android_uptodown.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/cambridge_primary_english_textbook.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/manifesto_barisan_nasional_pru_14.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/banking_service_chronicle_october_2018_download.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/lexaxono.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/20480519745.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_off000054f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54F7 5076 bytes
SHA-256: 3e3922edb620fb769ab94f8a050359c3b7d25eb029714694b7834fe117b33fe1
font_01_sfnt_off00006626.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6626 10852 bytes
SHA-256: a34ae60a68fa76d8174b110b34d28077aca2eea2a54a64af3bb98e3e25d8d540
font_02_sfnt_off00008a0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A0E 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2