Malicious PDF — malware analysis report

Static analysis result for SHA-256 00aee2c60b18daca…

MALICIOUS

PDF

114.1 KB Created: 2021-08-01 15:08:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 65f4440116ab04c10ed7932b2e3bfcca SHA-1: 0fd343220a170d5fe506c86498ab36ff1a4f8260 SHA-256: 00aee2c60b18dacaa41837042d469d9a5db213d1070304f90010046432b1fdcd
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress sites, suggesting it functions as a link farm to distribute further malicious content or phish users. The presence of embedded JavaScript, though not fully analyzed here, likely facilitates the redirection to these external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://ketchas.ru/uplcv?utm_term=guild+wars+2+sylvari+elementalist+guide PDF link annotation
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/f3fc96d3633a86c19c84420989717b81/dofabumit.pdfIn PDF document text
    • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a39b1067e97---fogifakopizafitelejawuwof.pdfIn PDF document text
    • http://on-video.com/movies/movie_data/file/jurepirifeketewif.pdfIn PDF document text
    • https://cristalparkhotel.com/ckfinder/userfiles/files/55024395377.pdfIn PDF document text
    • https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/1mhh7i7oht744ld2q0dgl83401/xituk.pdfIn PDF document text
    • https://almondzwealth.com/administrator/imagetemp/file/2799282763.pdfIn PDF document text
    • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a4cfc4418bb---74876560284.pdfIn PDF document text
    • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a667aeb0d71---3293025813.pdfIn PDF document text
    • https://asharfilalkulfi.com/ckfinder/userfiles/files/gusipezure.pdfIn PDF document text
    • http://nensi.si/upload/file/bemupunix.pdfIn PDF document text
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/9pg1c0n6vp283rjc4vr1buq9v6/81826696066.pdfIn PDF document text
    • https://mygoaltv.org/ipp/images/uploads/files/xeluxuliferumezusix.pdfIn PDF document text
    • https://nergizleryapi.com/image/files/kesunijutopogosugirike.pdfIn PDF document text
    • https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/853e0b700045b4b400455977f9bfc7d8/28902442427.pdfIn PDF document text
    • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/t3l4j58q423st266qhbpcloh2f/nijiwogafi.pdfIn PDF document text
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607e8b515add5---tesopisalokumapepexeze.pdfIn PDF document text
    • https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/3572dc9f774057b26f8ef5c57bb9bc76/gufatafilexa.pdfIn PDF document text
    • http://airconbank.com/upload/fckeditor/file/wexutepivobokisibalevul.pdfIn PDF document text
    • http://mhfmjournal.com/data/22/2/55/64/2544879/user/2788947/htdocs/userfiles/file/86698914416.pdfIn PDF document text
    • http://jshtextile.com/UserFiles/file///72647500019.pdfIn PDF document text
    • https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/a0864a72bcc2c57894aa3067f478d163/lejarilutalubigoti.pdfIn PDF document text
    • https://tenfci.org/userfiles/file/jometijijozexafolon.pdfIn PDF document text
    • https://contabil-fiscal.ro/mm/file/nobokoga.pdfIn PDF document text
    • http://uci.ir/userfiles/file/wifilizafuluvopiv.pdfIn PDF document text
    • https://gfow.om/wp-content/plugins/super-forms/uploads/php/files/roucnnuev1r743ggp3fl0t3vef/pusogiguwisopi.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_off00015a07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15A07 10996 bytes
SHA-256: 358d254543250c42c98003f0735342c45941f648c19e04f46f3cc7d17ce1189e
font_01_sfnt_off00017378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17378 17524 bytes
SHA-256: 3fb853c40a0ed2e1dfa16cac986434574d747c422638526fd67e191ea8430ec2
font_02_sfnt_off0001a15a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A15A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.