Malicious PDF — malware analysis report

Static analysis result for SHA-256 200d9f036f5c12b5…

MALICIOUS

PDF

43.2 KB Created: 2020-10-08 22:06:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 0e99331e6bf8154cf7a25010c408d4e5 SHA-1: 62d384506506781c6e8688fad25db22074ffd460 SHA-256: 200d9f036f5c12b5f50e85037b599cb0bbf4de34d0120fe07f8865611683da8c
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://gettraff.ru/strik?keyword=envision+math+grade+4+worksheets+pdf In PDF document text
    • https://site-1039895.mozfiles.com/files/1039895/melejunoxuvowadaze.pdfIn PDF document text
    • https://site-1038517.mozfiles.com/files/1038517/tusuf.pdfIn PDF document text
    • https://site-1037274.mozfiles.com/files/1037274/baputedevokovajin.pdfIn PDF document text
    • https://site-1037276.mozfiles.com/files/1037276/60253973661.pdfIn PDF document text
    • https://site-1036830.mozfiles.com/files/1036830/19456142846.pdfIn PDF document text
    • http://niwaj.explorebeyondborders.com/uploads/1/3/0/9/130969402/8851394.pdfIn PDF document text
    • http://files.trainedbydane.com/uploads/1/3/1/6/131636917/3788680.pdfIn PDF document text
    • http://files.ritosrepellant.com/uploads/1/3/1/4/131453206/004a86351.pdfIn PDF document text
    • http://tuwulu.pnnag.org/uploads/1/3/1/8/131871727/nitadure-xojifoxugimul-taxixanek-lakuxovuga.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/1/0434/7956/4448/files/sc_high_tide_camera_watch_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5023/6064/files/woodingdean_water_well.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/3146/4600/files/the_circle_maker_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/5088/4008/files/41604594981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5644/7136/files/69377224694.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5484fbd5-782b-4e4d-99ef-1ff09e813b59/viwevasamuvuwuwabulogepis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/027c95e2-6173-49cd-994c-1b6014681ed9/lerorikonubefadalex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e983e45-1ed9-4e0f-8b5f-a5e7726b43ad/zasimopovu.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_off00006981.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6981 5684 bytes
SHA-256: 136006b2789ca00d8cf224821ccb42d71deb2b97e4e9119cdbf477f886925358
font_01_sfnt_off00007cd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CD7 10252 bytes
SHA-256: 64b1f7e46b77a78557cfc2b21d50e133fe0f92bee312b7b36c8800d7430731c6

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