Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6980420adcf08d6…

MALICIOUS

PDF

44.2 KB Created: 2020-10-12 11:48:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c77c50a681bfbddc2916245e75a7ec86 SHA-1: 6810b47bb17a4901927f28bc1cb507b79c258cdd SHA-256: f6980420adcf08d686e682a254d9ff133a800d570b356e8af712111a383dd95a
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.com/pify?keyword=libros+gnosticos+gratis+pdf In PDF document text
    • http://kekiv.sno-ops.org/uploads/1/3/1/1/131164159/dexisasisowe.pdfIn PDF document text
    • http://files.glazedamused.com/uploads/1/3/1/8/131857650/jusugabage-zisebajikebe-sapetabidiwudo-wasapimu.pdfIn PDF document text
    • http://files.paulwilliamgagnon.com/uploads/1/3/0/7/130776211/zizor.pdfIn PDF document text
    • http://kizumaxuw.hidayatashila.com/uploads/1/3/0/8/130874473/kanevepij_suvitimuzuwimos_wusolavafadel.pdfIn PDF document text
    • http://zoliti.ameliaandcompany.com/uploads/1/3/0/8/130814017/fuvopax-witeru.pdfIn PDF document text
    • https://site-1038471.mozfiles.com/files/1038471/supivimakudet.pdfIn PDF document text
    • https://site-1039641.mozfiles.com/files/1039641/luvinakojojutakowuzozin.pdfIn PDF document text
    • https://site-1043698.mozfiles.com/files/1043698/94480791719.pdfIn PDF document text
    • https://site-1038614.mozfiles.com/files/1038614/mefasawevikumefidenewazi.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/e2d0298b-5983-45db-8ceb-e5de0447a442/lotamutagaxikesozire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dcebc4f-3700-4a8e-9ae5-924ca4f9e2d5/30522246774.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d5159a5-ffe2-48d2-841b-18b7b5943f10/39799083119.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a86cc51d-cb59-4cf1-8a9a-293fb3785ad0/11393508399.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b58e9d4-dfbb-45c8-927e-2411a5a9480f/45567717747.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 4

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_off00006b2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2C 5372 bytes
SHA-256: 2a6196661db22b0029d4d0c9dcd0ef11298dd5510ba1674c682b7d531117923b
font_01_sfnt_off00007d73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D73 11340 bytes
SHA-256: 18e77b669296ef0a9edc300c825a4f9c520cf8ff4e79fd356fcd09d9d5af56d4

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