Malicious PDF — malware analysis report

Static analysis result for SHA-256 7312c2c191c3f984…

MALICIOUS

PDF

69.9 KB Created: 2021-01-27 09:48:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7b3e8fa91258c339d9e92d5f8d578157 SHA-1: 129a5f7917b2c2290f831ffbcb503c4e6d631ac3 SHA-256: 7312c2c191c3f984eb8509efb8e0a8026c3acefb3803b7c9978989db9bade6bb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/wb?keyword=fox%20news%20ratings%20plummet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4389106/normal_5fd885a93c849.pdfIn PDF document text
    • https://cdn.sqhk.co/fufejapopunu/4tMMnhi/57042818578.pdfIn PDF document text
    • https://cdn.sqhk.co/nudabesawi/fEgjhdA/define_artillery_in_world_history.pdfIn PDF document text
    • https://cdn.sqhk.co/verexumifo/mOhi3gc/day_office_rental_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/tudobele/djjjXC7/vatuxexuxumovakebupefes.pdfIn PDF document text
    • https://cdn.sqhk.co/guzowozuk/gijcRSY/30604321202.pdfIn PDF document text
    • https://cdn.sqhk.co/niramojiga/7E16FHy/ice_cream_sandwich_vanilla_and_chocolate.pdfIn PDF document text
    • https://cdn.sqhk.co/diratukuz/ULALAR5/wiwoboleduresoji.pdfIn PDF document text
    • http://jokidinavefo.22web.org/financial_reporting_framework_in_pakistan.pdfIn PDF document text
    • https://cdn.sqhk.co/zerurukoraju/pCgg5uA/38737913663.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sekijipaladi.epizy.com/free_template_power_point_lucu.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/beautiful_disaster_book_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gogunabones/formas_del_verbo_abrazar_en_ingles.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/kopavug.pdfIn PDF document text
    • https://s3.amazonaws.com/kegovev/82291610460.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_off0000d372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD372 5252 bytes
SHA-256: 5231e0980379126c0819a7b6ad797782b14a10e5602f09569fc768eb2a287848
font_01_sfnt_off0000e558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE558 11060 bytes
SHA-256: d3d80cbc4139a549afa06e88e419e4d44852ab6f877145c54e8ea6b56e8e86ca