Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e13e1d311540edd…

MALICIOUS

PDF

69.5 KB Created: 2021-02-27 00:53:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c037e63a6cedb5a4e1ed1f9b364b83c4 SHA-1: bbe483691a7668b84fb72d50df795f948a31dbdf SHA-256: 5e13e1d311540edd057391797fc3ad17560e6aa03eea3b8626bbbd0e20792ff7
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/award?keyword=cambridge+preparation+for+the+toefl+test+audio PDF link annotation
    • http://nelitip.22web.org/kaziwogawitagotuwovi.pdfIn PDF document text
    • http://fajujefa.getenjoyment.net/taco_bell_chipotle_sauce_nutrition_facts.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374364/normal_5fcd9983b7bfb.pdfIn PDF document text
    • http://sdfsdfsdf.shaketorch.com/classes_guide_three_houses.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461766/normal_5fff74eaf28b7.pdfIn PDF document text
    • http://mumolazesinidix.getenjoyment.net/why_is_my_aux_cord_not_working_iphone_7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409421/normal_5ff8104d691cb.pdfIn PDF document text
    • http://tufuwavaziga.mygamesonline.org/80309244575.pdfIn PDF document text
    • https://cdn.sqhk.co/jorafulati/ghmo2ji/33722679704.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490365/normal_5fc834337c688.pdfIn PDF document text
    • http://topchambre.xyz/833576758542efc1.pdfIn PDF document text
    • http://somixewavado.sportsontheweb.net/moultrie_trail_camera_flash_not_working.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389606/normal_6003114be6e47.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/defipedibe/windows_10_updates_over_metered_connection.pdfIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/ja_economics_textbook_answers.pdfIn PDF document text
    • http://nisogifamesada.epizy.com/jetarasugubepunekubet.pdfIn PDF document text
    • http://dezenaxo.rf.gd/informative_presentation_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kubedukowug/movies_malayalam_2015.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_off0000d21d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD21D 5500 bytes
SHA-256: 9e3ed749a24f6b0a9714a415fee5d89309263e48d7fdef1e6707db0f44e9d742
font_01_sfnt_off0000e49b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE49B 10684 bytes
SHA-256: e99cd9677dc346e091779863300a12f026af49cfecdcacf281b317f7d2c1ff98