Malicious PDF — malware analysis report

Static analysis result for SHA-256 3349880494c1d8a6…

MALICIOUS

PDF

50.4 KB Created: 2020-10-01 06:54:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 48faa44fb46dfbf9a3d415dbb7d14d27 SHA-1: adba8fd648c4c42c6235a3820c2e71f445d98899 SHA-256: 3349880494c1d8a65b2ef299a22056ce66edaae512200f432a90f38b6db94fdd
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/strik?keyword=poultry+broiler+business+plan+pdf In PDF document text
    • http://files.defensivesolutionsmidland.com/uploads/1/3/1/4/131453996/suvuburugoninafepet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7250/files/odyssey_of_the_mind_pin_design_competition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1482/2811/files/patagonia_guide_pant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0235/6127/files/297329550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9626/7168/files/broken_arrow_full_movie_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85f72356-8b5e-417d-9456-0815fb00b96d/8394213410.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a46ea240-55b6-4b3d-8572-f1c8a1e5638f/dirijuzexupod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b831876f-b895-42ce-8324-971b35b6fb2a/62833584520.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/621ba430-643e-4e19-86f2-73b1a0744545/xupeloledokixajedidaxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a830decc-671e-44f9-832d-2d0c71f2c8a0/zupona.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6819a19-91cc-4fc5-bd09-2c213e544ada/misurilo.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76B6 5160 bytes
SHA-256: c1e31837a71327046a4c31232456c35bd253ebbe990fee9dabb9466d5ff77df6
font_01_sfnt_off00008849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8849 11204 bytes
SHA-256: 21a64af6d62421aff728ee2e50bd0dbf220031208836fbd502b26e539910d257
font_02_sfnt_off0000ae7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE7C 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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