Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a6fc1cb3e4ce59a…

MALICIOUS

PDF

67.1 KB Created: 2021-02-28 20:17:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 196d3c57ec8c4734d6c955447725f6c1 SHA-1: cc23b86288ee08a37313c75894bd8f587ec24fea SHA-256: 3a6fc1cb3e4ce59a93eb3833d37c8ff79c82d28488abfd2fae2aa408019e2bd9
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://golowaki.ru/wix?keyword=unit+2+describing+motion+worksheet+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381090/normal_5fd7a4211c9d5.pdfIn PDF document text
    • http://falorilipeb.mywebcommunity.org/cost_to_service_navien_tankless_water_heater.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503035/normal_603b62422cd21.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421970/normal_601eeb1bd1340.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384470/normal_600fc321e3f31.pdfIn PDF document text
    • http://lazirog.mywebcommunity.org/mokuvarafejipox.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401696/normal_60032bf6cfe20.pdfIn PDF document text
    • https://cdn.sqhk.co/kewudomavave/SZxRggd/defender_2020_price_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/sebudesusoj/gjig8gg/free_full_hd_movies_2020_vr990.pdfIn PDF document text
    • http://kaxavetaxudu.mywebcommunity.org/5426351559.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dotivaf/210207926.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/faxiwowedibavo.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/characteristics_of_autocratic_leadership_style.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/breadnut_nutrition_information.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/tunewuroragonuwumijitawep.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/39134402896.pdfIn PDF document text
    • http://tefetuzuzip.myartsonline.com/fipuvufedewuxefufo.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_off0000c839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC839 5740 bytes
SHA-256: d172f8fd50e9159a47df032b0228a1c561cd5fc770932bf3aaab3e9dd5c4a5ec
font_01_sfnt_off0000dbae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBAE 10456 bytes
SHA-256: 3b7ee8444a25456279853d9c41e010fc9faccd6ce9837cf2b804ad9ec507b342