Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cd5bd27cbc1e8e0…

MALICIOUS

PDF

44.8 KB Created: 2020-10-16 09:50:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: e7466b3bbd249329bc595f9bfe430afc SHA-1: fd87a4e224383fe3aa174343d68ddecd7de20f61 SHA-256: 8cd5bd27cbc1e8e038ac6defcea2d90b43b57b9caa2c05d3cece3325397c7480
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://gettraff.ru/123?keyword=maine+aapko+pareshan+kiya+in+english In PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/kubokujada-kijezubat-muxin.pdfIn PDF document text
    • https://genamimiwovem.weebly.com/uploads/1/3/1/6/131636881/jiramodo-rejonebolived-nademaw-megasomifurare.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/nukexifepejisox.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/3029889.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed642e9f-e45d-41d0-b2c3-62eab1514543/nupumosiputagiwurakuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f558419-9870-445e-8dc2-2ab99f558c50/64771564703.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22610819-51a8-4f9c-8538-7a0f6fda66f8/titudisixasibilikevilowob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/2274/6263/files/a_pie_luigi_amara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3745/7575/files/basic_engineering_circuit_analysis_11th_solution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/0882/9851/files/29987248048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6712/0037/files/tamarafoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8187/5112/files/jabivuvozinusulunuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/5956/3682/files/99388871688.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3725865e-a617-41ab-a158-19650cdc0b83/xugapubigoninuvizovavazi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ec4854c-620f-452c-b26f-554fb055577a/50930417165.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2843a67a-d78e-4143-b75c-37a20723feee/17767079949.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ab1ac30-d851-4224-a460-0cf90f0222f7/govewitufadoxesojano.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdc2482b-0a9f-44f1-8daa-28dc4be552f9/sigufufegivexufebazabeguz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2969/0530/files/nisuberiviretifejujuvux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5753/9993/files/63073942792.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 8

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_off00006fb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB1 5252 bytes
SHA-256: 2c72b3ee4403865d78c7638f0523a9286e93b0e721f53933c678be4e11571761
font_01_sfnt_off0000818f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x818F 10536 bytes
SHA-256: 40d4b028daa1d0fc13ca2038f54ceb7d289341fda8c9ebe0d712fde57b908601

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