Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e1a600460dbafdf…

MALICIOUS

PDF

77.1 KB Created: 2021-09-06 21:49:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 95dc5102bde8aed0eb75d1e4b0c2425b SHA-1: 7bd30bd9c03f1e3172902c2418d2c90add70b602 SHA-256: 5e1a600460dbafdfb9dd09e2fd795c15433824a1b3541b3902c2e51d2dde29db
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The file contains a link farm with numerous URLs pointing to compromised WordPress sites and other domains, suggesting an attempt to redirect users to malicious content. The presence of these links and the overall structure indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609f7cd8b77be---60230412369.pdf In PDF document text
    • https://myphi.biz/nbloom/fckuploads/file/labadizutoz.pdfIn PDF document text
    • https://flyags.com/editorResources/file///tolitatarosasegiduduxeloz.pdfIn PDF document text
    • http://mindentudor.hu/userfiles/file/27518132867.pdfIn PDF document text
    • http://nenkin-t.com/upload_img/ck/files/dakabuweritekol.pdfIn PDF document text
    • http://tentimesneedlehill.com/UPFILE/userfiles/files/33903980800.pdfIn PDF document text
    • http://top1np.com/ckfinder/userfiles/files/7135382883.pdfIn PDF document text
    • https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/6ed59948cf9c56140ca1390a0e4471ee/36976275321.pdfIn PDF document text
    • https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/3b888f5aa5ad0f0ed283538f0c953ea1/zudanutovulurajodenitibor.pdfIn PDF document text
    • https://pensiuneavalentina.ro/app/webroot/file/jivenufukufosuvogenonib.pdfIn PDF document text
    • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/ctfqsg0q551s2beooetontbvi4/52022370015.pdfIn PDF document text
    • http://hncastlecable.com/d/files/67951520617.pdfIn PDF document text
    • http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/0918a51c235baedf58a4f4ffbd588d48/wimudokuma.pdfIn PDF document text
    • http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608de0607e53a---waxajitewufuv.pdfIn PDF document text
    • https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/k44rc2b7n8opio2qve7omf71k5/mizuluwumonosarokodufutir.pdfIn PDF document text
    • https://alakharia.com/public_html/userfiles/file/danaxamegekuwuvolasomise.pdfIn PDF document text
    • https://culturasiapamplona.com/guiarte_userfiles/files/feruruvigig.pdfIn PDF document text
    • http://wdnederland.nl/file/40595388919.pdfIn PDF document text
    • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/7e930cfb9a8fa1559489cc4fa43735f1/84803283694.pdfIn PDF document text
    • https://vibanghanoi.com/uploads/files/dasolusipilevopufikuxun.pdfIn PDF document text
    • http://sparkpro.lv/content/file/62576987837.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=put+pdf+into+onenotePDF link annotation
    • 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_off0000caa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAA2 18112 bytes
SHA-256: 0fc6fc13c5076e277fd71df1b9340cfe47b4b75eb0d7f79611dcef08c55f9b17
font_01_sfnt_off0000f881.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF881 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011098.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11098 10116 bytes
SHA-256: 0e288bcf2c152580fea9352d2e545d57e019fada423d8374a1d32e464189056b

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