Malicious PDF — malware analysis report

Static analysis result for SHA-256 1915597da8574cf1…

MALICIOUS

PDF

82.4 KB Created: 2021-08-18 10:01:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 90356042ab7bf267ac4da20ab6106e54 SHA-1: 1a671a41712e61a405828896c8bb5975113719e7 SHA-256: 1915597da8574cf142f6b1c903f793c52cb3203a9c8b6a1a5b9e7282895f2368
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://philabc.ru/uplcv?utm_term=cattle+farming+business+plan+in+nigeria+pdf PDF link annotation
    • http://adveotec.com/img/file/6319753704.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/f0v0gugccdtqss306q176tk342/gojizale.pdfIn PDF document text
    • http://beganijewellers.com/ckeditor/ckfinder/userfiles/files/tupilinatexebuzigur.pdfIn PDF document text
    • http://namthangbasaltstone.com/uploads/image/files/faxakobilaxubopozuzopub.pdfIn PDF document text
    • http://youandisagenix.com/ckfinder/userfiles/files/titezutomog.pdfIn PDF document text
    • http://bbfederico2.net/userfiles/file/robafemagofikumidolej.pdfIn PDF document text
    • http://cameragiaminh.com/upload/files/33946881019.pdfIn PDF document text
    • http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/ib9t55r7s0bbee86adr7n2pbs0/95199750521.pdfIn PDF document text
    • http://apvn.info/userfiles/file/62431790427.pdfIn PDF document text
    • http://sovaimm.it/userfiles/files/15251519774.pdfIn PDF document text
    • http://kaupa.cz/userfiles/file/83289266975.pdfIn PDF document text
    • http://adasbruiloften.nl/userfiles/file/bukapemupavoratilopubefut.pdfIn PDF document text
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc1440c7305---20442400965.pdfIn PDF document text
    • http://globalquestconsulting.com/userfiles/files/panodatudi.pdfIn PDF document text
    • http://zhfangyuan.com/uploadfiles/files/63458611669.pdfIn PDF document text
    • http://toanthinh.vn/webroot/img/files/36055719298.pdfIn PDF document text
    • http://pensjonatagat.pl/userfiles/file/dawobepavin.pdfIn PDF document text
    • http://terwaarde.be/ckfinder/userfiles/files/24199766984.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160762a66b1e75---17638665269.pdfIn PDF document text
    • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/245eb0f8289d15a17db18ad725c7e770/jevutipekejoleke.pdfIn PDF document text
    • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/3e83abcb8e3f86e2547718e7a15c4b16/1208226557.pdfIn PDF document text
    • https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/limmsqerfuarlaq12okp86jng8/16037953984.pdfIn PDF document text
    • http://newgatedesign.com/Images_upload/files/vokolanu.pdfIn PDF document text
    • http://emke.hu/uploads/ckfinder/userfiles/files/5860282390.pdfIn PDF document text
    • http://blfimmobiliare.com/userfiles/files/63828685932.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_off0000df43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF43 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f75a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF75A 10992 bytes
SHA-256: d199a210d88cb3efc180e5e2e7d6b3df93c4a65d28406fa2c5bf56503053b2a7
font_02_sfnt_off0001106d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1106D 16684 bytes
SHA-256: 2ceb2ac0f02e34930de9574e32fe86b36738794f516042eecc22338a5881fa52