Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9f148064f778992…

MALICIOUS

PDF

44.1 KB Created: 2020-10-01 12:56:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 01d9f01937bd491d43a0c83c435cce82 SHA-1: 789e22b0c214d9d11b5a3a81b50929c519454f88 SHA-256: d9f148064f7789929428f9a1ddc86dabd9ba86caa0dd5f54eecb039f4350e9c9
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://ggtraff.ru/strik?keyword=predicts+2018+artificial+intelligence+pdf In PDF document text
    • http://files.isucsf.com/uploads/1/3/2/8/132815370/1834857.pdfIn PDF document text
    • http://vizuwa.pauljbennettauthor.com/uploads/1/3/0/8/130874134/mezolapifavokarud.pdfIn PDF document text
    • http://ledevoten.anniemeekmontgomery.com/uploads/1/3/1/3/131380600/pulepunegeporowawe.pdfIn PDF document text
    • http://files.stfrancispaumavalley.org/uploads/1/3/1/8/131856200/e977af50dcbe77d.pdfIn PDF document text
    • http://boneso.stfrancesbasketball.com/uploads/1/3/1/4/131453741/f71994dc8.pdfIn PDF document text
    • http://wuzor.lilianholm.com/uploads/1/3/1/3/131381045/8421934.pdfIn PDF document text
    • http://mawujis.simplysailing.ca/uploads/1/3/0/8/130814328/3112826.pdfIn PDF document text
    • http://figimuxep.sunsetskinboutique.com/uploads/1/3/1/4/131454215/nazile.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/bb2f373c-6acf-4d0b-b07d-58498bc3766a/89403416993.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e74f83c-3ba5-4f63-beff-91dfdf9d7deb/jodawoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a862c68-0d90-4e95-8acc-0b92cfb646a2/99814396449.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af7fc896-5ebd-4be9-b57d-a4309c4f1f70/dexosenudebalefotenejute.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/561b3eb0-59fa-477b-9a3c-96fc99d11c75/22203671242.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5929055-f9ab-4b23-b403-28e52b1ba1e5/vofewogavixu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58fb829c-4d51-4a87-9e75-b5098d7ba98c/libatud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4eaa8f59-8649-4d4b-a9c5-3b3ca4bbf79d/40355102037.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c3fcf3d-d598-4223-8e5b-7149c7cf49b9/tewotevetudidorulasemima.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_off00006beb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BEB 5844 bytes
SHA-256: 2753f17a010c6f5f77e4ecf907854877a8c41230ffb6aa5280e51d4709a4823c
font_01_sfnt_off00007fe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE9 10448 bytes
SHA-256: 57e1b04b5ee661e20e53a4c0cdb550a807e2ec3c54f0cfde34f7daf11067b74c

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