Malicious PDF — malware analysis report

Static analysis result for SHA-256 bee931b2333bc59e…

MALICIOUS

PDF

70.3 KB Created: 2021-02-19 15:59:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a449f7ada41c37d41454a13f92bb4f21 SHA-1: a03822279e144795bd11ea141ce24a6350a8f515 SHA-256: bee931b2333bc59e15d34f2b56deeb36801d26c0f03158e1f6a75ee6b26b4175
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://jacksth.ru/wix?keyword=final+fantasy+x+hd+remaster+100+guide PDF link annotation
    • https://cdn.sqhk.co/vexorikodo/bejebBj/motorola_edge_plus.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427079/normal_5ffe4e5d3600e.pdfIn PDF document text
    • https://cdn.sqhk.co/vetedaxuzele/bBk8gfh/carpet_steam_cleaner_for_sale_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/toxotunem/bicigjg/dewexidopipi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403674/normal_60051a46f2d5f.pdfIn PDF document text
    • https://cdn.sqhk.co/kenipafitu/4Usib1z/vikings_record_prediction.pdfIn PDF document text
    • http://fegovoze.22web.org/bajrangi_bhaijaan_movie_picture.pdfIn PDF document text
    • https://cdn.sqhk.co/dosojegomugu/zHZiamP/64249081426.pdfIn PDF document text
    • https://cdn.sqhk.co/tejosepu/rbguijv/jemogezamifi.pdfIn PDF document text
    • https://cdn.sqhk.co/fekerepusa/ggrahiM/raregaxubax.pdfIn PDF document text
    • https://modevibivuruwix.weebly.com/uploads/1/3/1/4/131406629/9302079.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470552/normal_6014165d6bd51.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450632/normal_5fe5f2c2ba459.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/jeworurowam/introductory_astronomy_and_astrophysics.pdfIn PDF document text
    • https://s3.amazonaws.com/waduzirader/makkar_ielts_speaking_may_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/29845615057.pdfIn PDF document text
    • http://waverotefiwob.epizy.com/29901767965.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_off0000d3b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3B1 5640 bytes
SHA-256: 3c8534614d315e435e5a56a8b7fbce80ad89b059f7fe3b37245977a1f4778a2a
font_01_sfnt_off0000e6d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6D0 11048 bytes
SHA-256: 64d271816d59b901edfc90cac3602eaafb09aa8341ffbf98553fbd585a20992d