Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f6ee21a489e8b01…

MALICIOUS

PDF

48.2 KB Created: 2020-10-05 11:05:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: ef276fa6509011c191760f435849a158 SHA-1: 7dbb858ccde234550bba1522817abc4a3f4caea6 SHA-256: 9f6ee21a489e8b0131f080b2df94cb07452bed4fde8207661a3271256a8364f1
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/pify?keyword=happy+birthday+sarah+jessica+parker In PDF document text
    • https://site-1036731.mozfiles.com/files/1036731/77598181534.pdfIn PDF document text
    • https://site-1042011.mozfiles.com/files/1042011/nirupuxa.pdfIn PDF document text
    • https://site-1037235.mozfiles.com/files/1037235/mefuduwanonan.pdfIn PDF document text
    • https://site-1038967.mozfiles.com/files/1038967/69868996135.pdfIn PDF document text
    • https://site-1039214.mozfiles.com/files/1039214/1443261774.pdfIn PDF document text
    • http://files.blackfiligreeco.com/uploads/1/3/0/8/130874161/gutusovaripemuk_xasarot_sojegada.pdfIn PDF document text
    • http://files.cozycatsanddogs.com/uploads/1/3/0/8/130873944/7209288.pdfIn PDF document text
    • http://miwopi.ondaruokala.fi/uploads/1/3/1/4/131438523/gelusadelepige.pdfIn PDF document text
    • http://files.loveyourwork.org/uploads/1/3/1/6/131606353/kired-tusaju.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/1/0435/2940/4567/files/wakitifepaxix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/9827/8555/files/30895175162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6716/3302/files/95433957732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9453/5072/files/coca_cola_cooler_for_sale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1829/6228/files/vista_heights_middle_school_colors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1673/0277/files/touche_nail_spa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0387/3960/files/27853322809.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_off00007ecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ECD 5472 bytes
SHA-256: 7b9ae7fd48d87f7d4b11459c35d89cc3d5c96022d4395cb8d9c3b258f5d018cd
font_01_sfnt_off00009163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9163 9964 bytes
SHA-256: 74539c71f373488014b2da6b309d5e8926ad126d8e4452e18d64937c1779d31f

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