Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac82d77ca467cf4d…

MALICIOUS

PDF

42.9 KB Created: 2020-08-12 16:22:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1ddd55d3feff987a8827a944585513fd SHA-1: 2327d0df5d711591a577310e79b08c48406cf55f SHA-256: ac82d77ca467cf4ddfdfaf910eef5531e66ad87c76c79e19a96772ac0d771771
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm, with many links pointing to benign Shopify URLs but one critical link to a known malicious redirector. The document body also contains the malicious URL, suggesting a lure to download a PDF. No scripts were extracted from this sample, but the presence of the malicious redirector and the link farm strongly indicate a phishing or scam attempt.

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.cc/pify?keyword=basic+drawing+book+pdf+download In PDF document text
    • http://temoj.mrspearlsmusic.com/uploads/1/3/2/3/132303195/kisuru.pdfIn PDF document text
    • http://files.channamalkin.com/uploads/1/3/2/6/132695258/xafirejiniv_lisej_fisugiwevi.pdfIn PDF document text
    • http://files.extremeflyerdesigns.com/uploads/1/3/2/3/132302978/5737948.pdfIn PDF document text
    • http://suzipi.kiwibokke.com/uploads/1/3/1/1/131164312/d2a6f30f.pdfIn PDF document text
    • http://files.brookeannbailey.com/uploads/1/3/2/7/132740659/takigizojagojel_xepapikuga_jixatapazewovi_tutowatomaz.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/1/0431/1531/5349/files/zitenejevuxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pexivopagutufaxusezonav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2197/1104/files/bubbler_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1888/7068/files/goxaxokowititadafunumep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8155/5350/files/jobidukikuwepabaxozafofas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6662/9032/files/jozuzixelefapes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/vifutifemopujivawazeluf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4464/2715/files/fobanofavaviz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6107/6387/files/sejarah_amandemen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8570/8968/files/28629081507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/15996287747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1714/2433/files/julite.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006820.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6820 5668 bytes
SHA-256: 9075439e8de9dea31d89a7a506fd23783a43fb1bf475b704d6de802db65c12f8
font_01_sfnt_off00007b87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B87 10292 bytes
SHA-256: 6a0f41720f263e97650162daf3d46d5d7c2b0c5597d37d1275f5a9e83fcf523f

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