Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8d47fd6fd2c60e…

MALICIOUS

PDF

64.6 KB Created: 2020-10-19 05:46:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: 364fdcbd0d1eceb7112f76b9f010f710 SHA-1: f3a127ffab5d667db793d11bee0a8956a30806db SHA-256: aa8d47fd6fd2c60ee2c8d68bd96db74da5317d76c9cddd80ab39ab4253bc9417
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/123?keyword=illinois+comptroller+annual+financial+report+instructions In PDF document text
    • https://panidulupeju.weebly.com/uploads/1/3/0/9/130969186/jezefisoliben-fupazara-beneniretovivol.pdfIn PDF document text
    • https://botubadixebom.weebly.com/uploads/1/3/1/4/131407995/c6158782a23.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/kezupukono.pdfIn PDF document text
    • https://turomanusogagi.weebly.com/uploads/1/3/1/4/131453559/ludiditepif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367903/normal_5f87582290299.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366956/normal_5f87b3523fd1f.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/1/0437/6258/1658/files/my_horizontal_life_audiobook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5940/7765/files/didnt_find_class_androidx.core.app.corecomponentfactory_proguard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/8432/8344/files/rudisawafaxexuxosiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0193/2706/files/20383190378.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49d80bab-482e-4e6b-be59-42f9a0ffab1f/relojetir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cacfc8a1-53a0-46b1-8e66-4806be02f68b/gepexe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df375e00-84d2-4b82-aee8-1be66ab238d5/54462549110.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3dec0093-d08d-4d6d-af7c-bb3f63689d35/dawuferejuvad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0728/5147/files/85740837022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7306/4097/files/datinozunin.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_off0000c1b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1B9 5100 bytes
SHA-256: 66adb69b4fd5837990e5288bb24e5f5ee1c3c588c2079bff64889f983272e840
font_01_sfnt_off0000d2f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2F0 9908 bytes
SHA-256: d5a0c6bc82ad213c16584508b6ba3e15764fe376e94b14ec200e457ff5d112c9

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