Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc772ea77c721575…

MALICIOUS

PDF

40.8 KB Created: 2020-10-02 13:33:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 46bf3c6f7ecc9f9b55c514ee273e26e6 SHA-1: 64ffad99e9d8b3454e3ee3198a4812d501bd9f61 SHA-256: bc772ea77c72157580f7d5c2c46545bd89760d2af4abc5cc2d1d9bc9f5b89e1d
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/strik?keyword=how+to+build+a+car+adrian+newey+pdf+free+download In PDF document text
    • http://zomeno.runonsentences.org/uploads/1/3/0/7/130775256/6240643.pdfIn PDF document text
    • http://kulirigi.cultivatebirch.com/uploads/1/3/1/4/131437181/lajakijobeteremoke.pdfIn PDF document text
    • http://files.jonathanbrooks.net/uploads/1/3/1/4/131407088/2884832.pdfIn PDF document text
    • http://files.volcano-blog.com/uploads/1/3/0/8/130874125/tumepelatixa.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://uploads.strikinglycdn.com/files/288e7179-2021-4c70-a8f0-1dd9abd47fd7/35477809013.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32bee597-fd2e-453b-a422-8c07c76a5c9a/98419937961.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bf7bbe8-ebca-493a-ae30-53769a01cd99/19709864233.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79f39b86-742c-4562-9571-e8b86fea874e/jidukunanugivazodavofeped.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/799f4423-c7b4-4339-b5e4-80b16bcdccc5/30608813198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7376/3496/files/jml_arctic_air_cooler_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/7718/4925/files/jikisidezefovejane.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d63a73e-e8de-4273-9091-56e119212562/99704366898.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5ba2cbf-0894-49cb-b96c-aed9fde1f53a/nenumevekalodakedir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91e5363e-3d6b-4026-99a7-7bcf25352dfd/toloba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d46363b-590d-4196-b150-110b2a1b8d6c/semalulusufowoxuluvu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/108203c1-82f3-48fa-92b4-8a3b61b07457/77232609298.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
🗂 Part of campaign: cresaptowneagles2883.com 4 samples

Related samples 5

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54AE 5148 bytes
SHA-256: 3ce784f7f724902d9b6ecdb37f0f033df29d082b1d3cc5a6ed18f24567c30424
font_01_sfnt_off0000664a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x664A 9884 bytes
SHA-256: 620dc10ba39149f6cb61d6a9243cf752c1664c5fd98302dbad5c405dfa2ca68d
font_02_sfnt_off00008802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8802 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

Open this report in the interactive analyzer, or submit your own file for analysis.