Malicious PDF — malware analysis report

Static analysis result for SHA-256 75be786ae877133b…

MALICIOUS

PDF

300.7 KB Created: 2021-03-23 23:18:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: e355555ec9e8b24128d338df1f455311 SHA-1: 4a24e5a9d29ff9eb3a8890c4801af64a31d9323f SHA-256: 75be786ae877133b658295921842f0290d2beb2b0393392fc79c5b26c5522785
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://yafferge.ru/wix?keyword=imaizumi+kagerou+crying'. This indicates an attempt to lure the user to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of a malicious URL in a PDF is a strong indicator of a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9896

Heuristics 4

  • 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.
  • 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=imaizumi+kagerou+crying In PDF document text
    • http://fofolep.mywebcommunity.org/rukuk.pdfIn PDF document text
    • http://niburufajanuto.sportsontheweb.net/42703907623.pdfIn PDF document text
    • https://xupalodigodub.weebly.com/uploads/1/3/5/2/135298884/ddba5.pdfIn PDF document text
    • http://sowopezamiw.medianewsonline.com/jegetanupoginaj.pdfIn PDF document text
    • https://sojugadetoju.weebly.com/uploads/1/3/4/6/134683069/pagixezofomojoruv.pdfIn PDF document text
    • http://botefin.medianewsonline.com/bb_clarinet_finger_chart.pdfIn PDF document text
    • http://delozofize.scienceontheweb.net/copper_busbar_weight_calculation_formula.pdfIn PDF document text
    • http://mirijesuwakug.sportsontheweb.net/21696182026.pdfIn PDF document text
    • https://tovakuroxi.weebly.com/uploads/1/3/1/1/131164121/mawamovefixakiwuj.pdfIn PDF document text
    • http://rawiduti.medianewsonline.com/can_i_move_my_fios_router_to_a_different_room.pdfIn PDF document text
    • https://vuxidozeni.weebly.com/uploads/1/3/4/6/134669409/46dea.pdfIn PDF document text
    • https://sefidobove.weebly.com/uploads/1/3/4/3/134320077/xajotikigaruroj_nuniziretixoz.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/sudevejerifu/wilewedu.pdfIn PDF document text
    • http://bagugexasorip.myartsonline.com/41723087290.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54bc5d32-1bad-4fd3-9ee8-436c3d65f757/57079700085.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/jaco_costa_rica_weather_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af881b62-bb1d-4ecc-9e4f-3a5d14a12860/vogirumosepibazemiju.pdfIn PDF document text
    • http://zewadomi.myartsonline.com/pressure_cooker_recipes_chicken_tortilla_soup.pdfIn PDF document text
    • http://tajavuminona.atwebpages.com/jofugavume.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4642dc2-bde2-4180-ace6-97c2502efaad/19775695250.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/rubber_sheet_supplier_in_chennai.pdfIn PDF document text
    • https://ift.tt/34ikjhyIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002aa1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA1E 143700 bytes
SHA-256: 79e9cc324a918b6aad858cea131e64397ae5deeaa6a07d605eff8d78734a064c
font_01_sfnt_off00045266.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45266 5064 bytes
SHA-256: 3c53a3f221629ce14a0d7fd157b5e55c731f42fde7a559063ccaeb6b8a3809e8
font_02_sfnt_off0004639e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4639E 12532 bytes
SHA-256: acf27e9b900c885b31da351d9d14a3cb16fe4bd367e7d62f661f3de5355ce0cd
font_03_sfnt_off00048cbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48CBB 16848 bytes
SHA-256: ff8a292a186f6335354b36729adfdecb747687f01d192614480474569b93e7ef

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