Malicious PDF — malware analysis report

Static analysis result for SHA-256 00e6dbff5f762797…

MALICIOUS

PDF

45.8 KB Created: 2020-10-15 07:48:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 38a02a8eaf205c2b816d71c5e6b619af SHA-1: 8d1755fb985faf2512481b9f42f0029d869f9c05 SHA-256: 00e6dbff5f762797f0da46ef838d86823f305cb5bf4e63997bf4f8703148b8b0
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/123?keyword=administration+and+management+book+pdf In PDF document text
    • https://besavikeneg.weebly.com/uploads/1/3/2/8/132815808/0595f0ad25.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/ratefunerod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366317/normal_5f87a661eba0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366395/normal_5f8756ed63581.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366344/normal_5f87110c0cb73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366048/normal_5f878768d368c.pdfIn PDF document text
    • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/5598480.pdfIn PDF document text
    • https://jufaxexave.weebly.com/uploads/1/3/0/7/130775513/wodabaxazugiwafab.pdfIn PDF document text
    • https://fimosezit.weebly.com/uploads/1/3/0/7/130775491/befivawatokezikub.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/1/0497/2471/9261/files/gorepejubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2571/8184/files/phim_han_quoc_19_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3301/5958/files/boom_beach_hack_apk_43.66.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7680/2967/files/midejotafifovuxonugebik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8759/2608/files/best_ultimate_fighter_winners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2609/8594/files/parts_of_an_insect_for_kids.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/3540/8576/files/drift_chasing_speedway_car_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/9027/9077/files/three_quarters_of_the_elements_are.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2366/2236/files/vemewixamotaletonine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1283/2931/files/complete_idiots_guide_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/9341/8681/files/which_of_the_following_was_designed_as_a_place_or_worship_or_meditation.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_off0000737f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x737F 5524 bytes
SHA-256: aa2b43129981fe1a14f48fe9cda96a23e6be72c3be7edd70c1b60990509ad667
font_01_sfnt_off0000862a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x862A 10340 bytes
SHA-256: 7709e02758f392360056a45dc29e7ce0783c960d0fc28f93cc4a046bbd0fa655

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