Malicious PDF — malware analysis report

Static analysis result for SHA-256 32d3309e461d1657…

MALICIOUS

PDF

74.8 KB Created: 2021-02-21 23:27:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5c91230be31063a5f8250d7f0c2ff420 SHA-1: 16ae27982e88914b02b12693ae6ff68c93ff6211 SHA-256: 32d3309e461d1657af05d52c8cc33482cae1557db3e13a8e054fbf39727be98a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=arctic+king+air+conditioner+5000+btu+installation PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4452608/normal_60016a3488c6c.pdfIn PDF document text
    • http://reduslim-ufficiale.website/duponudel6o6hx.pdfIn PDF document text
    • https://mexasazage.weebly.com/uploads/1/3/4/5/134513067/sawufuve_nokedi.pdfIn PDF document text
    • https://tunomofezu.weebly.com/uploads/1/3/2/3/132303147/4087278.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382962/normal_5fc9dad287892.pdfIn PDF document text
    • https://diwesosun.weebly.com/uploads/1/3/2/6/132695938/witikixov.pdfIn PDF document text
    • http://grigolia-studio.ru/reuters_news_us_politicsj4502.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413468/normal_5fd2650e80b09.pdfIn PDF document text
    • http://astrohelp.space/vox_ad30vt_manual_espaollf8xq.pdfIn PDF document text
    • https://gawinageriju.weebly.com/uploads/1/3/0/8/130874076/3929694.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459636/normal_5ffe430993241.pdfIn PDF document text
    • http://funuvumolifedaj.iblogger.org/dakazemefipolukudopuse.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367644/normal_5ffdd120e3ffb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366011/normal_5fc939be4212e.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/pakirupatilumuvobedi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kitasavino.epizy.com/sagugon.pdfIn PDF document text
    • http://tedipokexumo.epizy.com/68012965057.pdfIn PDF document text
    • http://sezusin.rf.gd/defenseless_hearts_meagan_brandy.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_off0000e73d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE73D 5564 bytes
SHA-256: 070684189594e60820b320670a10fc96c43450f6cfff3b9c0b1f9d9e65a0c783
font_01_sfnt_off0000fa39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA39 10548 bytes
SHA-256: 0d3553d28242b95cab8b81c1a1538d78412daafca5c32e44282720d3d8f18cad