Malicious PDF — malware analysis report

Static analysis result for SHA-256 478d56bc893f3832…

MALICIOUS

PDF

42.9 KB Created: 2020-11-01 00:19:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: 1e5ce4ff21be1838fad747cfcc43d4aa SHA-1: 4b1639b6a87769f7bc2e4e708f073d72b0c8db52 SHA-256: 478d56bc893f3832bc600c3a65977b1bd4883b72817b8a6088cdad40ffa31587
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.me/123?keyword=pakka+pets+cheats In PDF document text
    • https://cdn-cms.f-static.net/uploads/4381320/normal_5f8d1b3c54c88.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405197/normal_5f94c09330276.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379236/normal_5f974e18ed30f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392220/normal_5f94fcd73be01.pdfIn PDF document text
    • https://voxapinave.weebly.com/uploads/1/3/2/7/132740917/5867975.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366620/normal_5f882db237c6e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7506/2945/files/devefewupil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b5c9091-01e1-47a2-a9bd-9a6ef2b84376/36554685251.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/466b7980-5c5e-4c21-9046-9b527e284278/frank_zappa_transcriptions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1954/1416/files/google_chromecast__android_box.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/931581c4-94cd-484d-ad30-6713f10db9b6/jvc_tv_service_manual.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9C 4960 bytes
SHA-256: c40c0f018f018b844c6dfff66e587e5317860759cd106abc33ba04745823ba9b
font_01_sfnt_off00006c73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C73 5952 bytes
SHA-256: afa7d1e08a39de498cd6533389a55e6e156ffee21ca6b6d105191c26b7998852
font_02_sfnt_off00007bb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB7 10312 bytes
SHA-256: f6b5e40495c45bc4906657848e5a61ae3cbbb1e01ab26cbccbfe96a88adb15c7