Malicious PDF — malware analysis report

Static analysis result for SHA-256 445ac35c63e52e2b…

MALICIOUS

PDF

85.5 KB Created: 2021-09-12 11:55:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-11
MD5: 5ff87b1d89b3bf7813bd0052131ea8f1 SHA-1: 7aa45ef4d035c9e6a2527a11166b362e8a6d7c9c SHA-256: 445ac35c63e52e2b30e819b58a4ba606b9112f8eaf0f1389f0661df8d1c715af
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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://drafthe.ru/uplcv?utm_term=best+camera+phone+2020+bangladesh PDF link annotation
    • http://dellalontra.it/userfiles/files/muruleninetorelabi.pdfIn PDF document text
    • http://finchamauto.com/pics/97313022059.pdfIn PDF document text
    • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/ce8390eb0fc2de8d82832db9d4883b2f/63979992998.pdfIn PDF document text
    • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161377c1c13da3---31062368482.pdfIn PDF document text
    • http://rotang.net/userfiles/file/zolebopaxolubipow.pdfIn PDF document text
    • http://chaputlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nuzejupevelibefadi.pdfIn PDF document text
    • http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1613361e1457db---zedakesuto.pdfIn PDF document text
    • https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/dbe5532d7d1e1600f49f1d4e82fdd356/gasovid.pdfIn PDF document text
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138491070f4c---23535330855.pdfIn PDF document text
    • http://atek-ent.com/upload/file/zijifutobosutalobeja.pdfIn PDF document text
    • http://lagostena.it/userfiles/files/23585321212.pdfIn PDF document text
    • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/b716d082a436cf449fac9a32d35c74c5/89670899607.pdfIn PDF document text
    • http://netichikawaya.com/userfiles/file/xerunazase.pdfIn PDF document text
    • https://bhavanarayanaswamy.org/userfiles/file/mudopifefegavut.pdfIn PDF document text
    • http://sevenhillsgroup.net/ckfinder/userfiles/files/39323272951.pdfIn PDF document text
    • http://www.temaricerca.com/entry2013new/admindia/ckfinder/userfiles/files/fuzizoginifojujamiloz.pdfIn PDF document text
    • http://himalayakebab.irafbrothers.com/shipinc/userfiles/files/12031078420.pdfIn PDF document text
    • http://www.binghan.my/userfiles/file/13523200779.pdfIn PDF document text
    • https://profix.fr/ckfinder/userfiles/files/vizexegixa.pdfIn PDF document text
    • http://3q1p.com/upload/file/210912041752211001m86kie465zm9.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16134d93ea8b2d---xowuluzubopig.pdfIn PDF document text
    • http://sualpturizm.com/userfiles/file/98293034833.pdfIn PDF document text
    • http://pk-rowery.pl/user_pict/file/tamuxebatoxoluwupori.pdfIn PDF document text
    • http://sushikyototogo.com/uploads/files/87039376868.pdfIn PDF document text
    • https://mahae.hu/files/files/xovetajetutipilexajiweri.pdfIn PDF document text
    • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613984da3a43a---69108856898.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_off0000e5e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E9 11304 bytes
SHA-256: 064a8072efc974554b341e65e0df0d1a214e3bad91343800063942457fc5aaca
font_01_sfnt_off0000ffe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFE9 18232 bytes
SHA-256: a1c76135f0525a04e560399c2be8f43a6031b15eb45c4cd577a424d12c5c866c
font_02_sfnt_off00012fb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FB7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1