Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8600d5c7746bae…

MALICIOUS

PDF

44.3 KB Created: 2020-11-03 06:52:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 0ae61d18fd9897b54912fad8e70d15fb SHA-1: c962680a41a9800dbac522d9ef2c55323082b697 SHA-256: 5d8600d5c7746baefdc2c53e40b54dd38023dba9d83c47e7824f88b64ff06d0d
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://ggtraff.ru/123?keyword=dad+s+swim+club In PDF document text
    • https://dikoriwapajok.weebly.com/uploads/1/3/4/4/134447187/nivitoralej.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/bupemigimamuvap.pdfIn PDF document text
    • https://kikuvabafot.weebly.com/uploads/1/3/4/3/134332304/f9ffcd6f4ad5df.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/199877.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367287/normal_5f876237c33da.pdfIn PDF document text
    • https://fomezesas.weebly.com/uploads/1/3/4/3/134343882/sigixo-moledegirarebi-zenubomemub-raguwebumi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426267/normal_5f986d9fcf326.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/1/0502/6840/5915/files/csc_guidelines_on_promotion_of_teachers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/1518/8892/files/fish_bundle_guide_stardew_valley.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/2058/2563/files/80853204948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0506/5778/8078/files/nufaxadejobosugemilizupoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/7905/0438/files/indra_nooyi_leadership_style.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0507/5501/0735/files/unblocked_sushi_cat_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a4623b8-384b-4af1-b23c-f2b4f0f60f21/kimosafo.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_off000060d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D1 4688 bytes
SHA-256: 1b7dbda75fac80b9c7a34141f853379f7b0f0decaf85533c963e413afbe6907b
font_01_sfnt_off000070c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70C7 11096 bytes
SHA-256: 63f8766bddaaa7745ab3802866f0a504015863ae3c7681d13f33bf05ae30b2e4
font_02_sfnt_off0000968e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x968E 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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