Malicious PDF — malware analysis report

Static analysis result for SHA-256 341412473b16772e…

MALICIOUS

PDF

43.6 KB Created: 2020-10-15 10:59:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6e46cfdd53598692dba346b160bb9a78 SHA-1: eab5dd194f9f2baaca6d4056606ad090bd21ba63 SHA-256: 341412473b16772ea1e68ec159e26fdb264a6bea3d9a4f6bbdc05e707e775214
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://gettraff.ru/123?keyword=taxonomia+e+sistematica+vegetal+pdf In PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/7061675.pdfIn PDF document text
    • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/9889394.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/199877.pdfIn PDF document text
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/6452398.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/lonevu.pdfIn PDF document text
    • https://site-1040974.mozfiles.com/files/1040974/pepop.pdfIn PDF document text
    • https://site-1038401.mozfiles.com/files/1038401/pinowepij.pdfIn PDF document text
    • https://site-1048473.mozfiles.com/files/1048473/vagaribubigezalile.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368266/normal_5f8771d113dbe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366004/normal_5f870100889d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365642/normal_5f87bd71d0afb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366358/normal_5f873cfb3ce4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367937/normal_5f87bddc82117.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/18ad995.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/wewebunovemerifabo.pdfIn PDF document text
    • https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/zilariteliwijokotisi.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/rotesojelunemiroto.pdfIn PDF document text
    • https://site-1036812.mozfiles.com/files/1036812/86995915393.pdfIn PDF document text
    • https://site-1041785.mozfiles.com/files/1041785/91168118217.pdfIn PDF document text
    • https://site-1042346.mozfiles.com/files/1042346/miwaw.pdfIn PDF document text
    • https://site-1036661.mozfiles.com/files/1036661/21267066920.pdfIn PDF document text
    • https://site-1038908.mozfiles.com/files/1038908/nadevisibejow.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7066/8448/files/fanolazajigolijuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4800/8866/files/music_for_catholic_weddings_guidelines.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C91 5456 bytes
SHA-256: 2660cb06543c76d45fa9bf5fa7c3014ecb7738099e7a6a0f520a2089b1574832
font_01_sfnt_off00007f1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F1A 9948 bytes
SHA-256: 84a97cd8da190e2c7b11f676112d01069a4549bd0b12fccdf245d4204610bdde

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