Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa85e5c15ac50991…

MALICIOUS

PDF

72.8 KB Created: 2021-11-06 03:27:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 9754283eb79f8e8e82460da99d288ad2 SHA-1: 6f3c14a32b35c224a66f2966f38c3faeff222962 SHA-256: aa85e5c15ac50991fc4abc64944db84545c8acf0fe03c674f2c83a1cab80dc3b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 6

  • 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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://oniceh.ru/uplcv?utm_term=mega+millions+numbers+payout PDF link annotation
    • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/16142a562acda6---jojarafutasepoma.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16150f05920292---35505071494.pdfIn PDF document text
    • http://55pluscommunityspecialist.com/userfiles/files/62455124081.pdfIn PDF document text
    • http://gt-outillages.fr/ressource/site-image/files/68175601359.pdfIn PDF document text
    • https://textmakareknutsson.se/upload/image/51732628305.pdfIn PDF document text
    • https://raghuvirtrading.com/userfiles/file/59691090351.pdfIn PDF document text
    • http://kiapelhrimov.cz/UserFiles/File/kugetudifevedipavexep.pdfIn PDF document text
    • http://neoneofitou.com/ckfinder/userfiles/files/71884957179.pdfIn PDF document text
    • http://www.nomorcantikjoss.com/file/toxobagukafaselulovuruvuf.pdfIn PDF document text
    • https://cristalensi.com/public/File/68734412065.pdfIn PDF document text
    • https://ever.dacola.com/upload/files/sibikiborefotid.pdfIn PDF document text
    • http://www.groupementpecheduloir.com/ckfinder/userfiles/files/90558450198.pdfIn PDF document text
    • https://guapa2.com/admin/fck/file/dukulirizona.pdfIn PDF document text
    • http://cbgnfinance.com/userfiles/file/laxudur.pdfIn PDF document text
    • http://cesurmakina.com/userfiles/file/85048175667.pdfIn PDF document text
    • http://allier-genealogie.org/File:/52777554793.pdfIn PDF document text
    • https://autohausnschmidt.de/userfiles/file/buwodopefagavotogegawunot.pdfIn PDF document text
    • https://amityhr.com/userfiles/file/xugaroso.pdfIn PDF document text
    • http://www.andreapondika.cz/file/24728480588.pdfIn PDF document text
    • https://bangprice.com/bangprice.com/beta/cms_image/file/79817756328.pdfIn PDF document text
    • http://circuitvietnamcambodge.com/hinhanh/file/rawalologikefafap.pdfIn PDF document text
    • http://munnarteabungalows.com/userfiles/file/pojedatolesejovu.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1618123064e54c---22966777557.pdfIn PDF document text
    • http://dangkydoanhnghiep.org/hinhanh_fckeditor/file/49057041393.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b5e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5E0 10944 bytes
SHA-256: fd857d00173256728edd42b85ab57d65c03bb5d567520979fd76cf0524d92c39
font_01_sfnt_off0000cf0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF0D 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef
font_02_sfnt_off0000e62e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE62E 18276 bytes
SHA-256: b023b73f04d7f39227d26537e7eba7e6a58b0ff8eaa6bc176c8b519797cde988