Malicious PDF — malware analysis report

Static analysis result for SHA-256 a609d16115993232…

MALICIOUS

PDF

71.4 KB Created: 2021-03-03 04:20:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f9634bc57ee5def136c655dbf7ff7ad7 SHA-1: 8d7519bc8a5b8a821f5d0e24b6eaa96a2d21d49b SHA-256: a609d16115993232dde46336a2dfad8344d9240603780b8895bc636dd6b7f8c6
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://crophysi.ru/award?keyword=active+and+passive+voice+rules+and+exercises+pdf In PDF document text
    • http://pixunune.sportsontheweb.net/good_quotes_from_alice_in_wonderland.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478430/normal_5fdfa1a0243da.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408595/normal_5fe3572030cee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445754/normal_600b70554390c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368777/normal_5fda2613d6704.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470678/normal_600a5a7249d6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404755/normal_5fd0b6b881bbd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379231/normal_60297e916f109.pdfIn PDF document text
    • https://cdn.sqhk.co/rujoremebi/fjbjaqV/descargar_naruto_x_boruto_ninja_voltage_pc.pdfIn PDF document text
    • http://nonowun.mywebcommunity.org/jobodixoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378857/normal_602a25ba8df37.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/tojabixefova/24246932525.pdfIn PDF document text
    • https://s3.amazonaws.com/jevelel/97782553579.pdfIn PDF document text
    • https://s3.amazonaws.com/gifojuxaxeva/math_worksheet_generator_subtraction_with_regrouping.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/harga_daihatsu_sigra_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/minions_banana_trap_remix.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/sesaxamekozisog.pdfIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/xinuwuzopodifesalura.pdfIn PDF document text
    • http://tiwatimab.atwebpages.com/bejojopojenorujetuzutasoz.pdfIn PDF document text
    • http://sarutufasiko.atwebpages.com/think_and_grow_rich_original_audiobook_free.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_off0000db76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB76 5268 bytes
SHA-256: 9c47c43161ed351454818b0c490b5527bc8d154d7a54e6ebfbf354fa3b3bbc07
font_01_sfnt_off0000ed80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED80 10224 bytes
SHA-256: 6e52e408fb6f71f5c2933dbc97d9988b1054c6dfeb8b04bb9cd60c4dff86402f

Open this report in the interactive analyzer, or submit your own file for analysis.