Malicious PDF — malware analysis report

Static analysis result for SHA-256 001465525f97ce82…

MALICIOUS

PDF

69.5 KB Created: 2021-02-22 01:20:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 65d31f58ff5d38ba9c395145c4123870 SHA-1: 47ad9d6db566aac22de4c8105694eef3ff87263c SHA-256: 001465525f97ce821b94572cfd70484c92913dbc466019c05d8cb1288dfe0f2f
194 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
  • 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.
  • 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://yafferge.ru/wix?keyword=find+fx%2528x+y%2529+calculator In PDF document text
    • https://cdn-cms.f-static.net/uploads/4419413/normal_600c70629cb84.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416923/normal_5fd8efa64637d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421461/normal_5ff9a78cbe88c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473938/normal_602993cc38211.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375352/normal_6011c93573b97.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/dazovosugev/diagnosing_mental_disorders_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/falejogajir/lorugajukibonalode.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/notary_affidavit_format_for_address_proof.pdfIn PDF document text
    • https://s3.amazonaws.com/dapekufoxiraku/54238705894.pdfIn PDF document text
    • http://rexonaboruli.epizy.com/sagulemaba.pdfIn PDF document text
    • https://s3.amazonaws.com/punagilelabon/apache_cordova_ios_android.pdfIn PDF document text
    • http://suzimisefodude.epizy.com/atsui_negative_form.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/financial_auditing_process.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/berkshire_hathaway_annual_report_for_2002.pdfIn PDF document text
    • http://sozizowumideni.rf.gd/assainissement_dfinition.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_off0000d1f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1F1 5116 bytes
SHA-256: 272823f54732f82d576d6b444f68210d48dc79123bfa57529f2fa69ccf81dc3d
font_01_sfnt_off0000e387.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE387 10968 bytes
SHA-256: 5d59437363d8389bb12959f1919fcffebfb3fba3ef3486c7d1c3d604ac254d70