Malicious PDF — malware analysis report

Static analysis result for SHA-256 080a919c1709b3f9…

MALICIOUS

PDF

43.1 KB Created: 2020-11-08 16:02:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: ad586656ba2ca6e91fe4cde65e27b132 SHA-1: 0f2e03fa47b86e3127b33e3dff2796fa5246253e SHA-256: 080a919c1709b3f95f9fd9f9c287a94cf387899118ed8fb3204038fc4a0fc96e
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://traffmen.ru/123?keyword=21+irrefutable+laws+of+leadership+worksheet In PDF document text
    • https://gogipemefa.weebly.com/uploads/1/3/4/4/134471158/diwuzekonabizabagugu.pdfIn PDF document text
    • https://pojutawetuje.weebly.com/uploads/1/3/1/3/131382470/fakebifuri.pdfIn PDF document text
    • https://xuvakaxatal.weebly.com/uploads/1/3/1/0/131070170/7091873da761e69.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367668/normal_5f925d221c9b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382960/normal_5fa4e9073427f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366009/normal_5f893d9b77ee6.pdfIn PDF document text
    • https://galuxenezinex.weebly.com/uploads/1/3/4/4/134437763/niwajetefivin.pdfIn PDF document text
    • https://nogafuku.weebly.com/uploads/1/3/2/8/132815296/fagewulo.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/c854f12c-f53c-45f1-a6b6-19e9bd9ed756/26679012925.pdfIn PDF document text
    • https://zuwefuvuze.files.wordpress.com/2020/11/libro_ambiente_y_sustentabilidad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c746c34f-bd8b-4390-86b1-811f19f28cf2/ripemalizosoraruxutaputu.pdfIn PDF document text
    • https://vakonowar.files.wordpress.com/2020/11/reading_comprehension_about_food_for_beginners.pdfIn PDF document text
    • https://kebupud.files.wordpress.com/2020/11/16674380217.pdfIn PDF document text
    • https://fodabijiwifi.files.wordpress.com/2020/11/85104049410.pdfIn PDF document text
    • https://votitunuxuxi.files.wordpress.com/2020/11/68137391948.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_off000069ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69FF 5516 bytes
SHA-256: 15643ac16a314bef9ed532435b2b05dd7ce824b624d7a1c52e4173ab3379c816
font_01_sfnt_off00007cc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC5 10184 bytes
SHA-256: d64999ba7765a05f4aae6d44ddcef5071db2af4eb1940036fa12ec351fc1fd2f

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