Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed964e39f47fa373…

MALICIOUS

PDF

87.7 KB Created: 2021-07-01 09:52:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-25
MD5: b305382263239aece7bea25102ec5f70 SHA-1: 0089cebb91c3508e6e98cb16dd11d41a3b3d63bf SHA-256: ed964e39f47fa373eed5498a02d17624e83b07b368ed698ef19f4fea413f1f52
156 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised or disposable hosting domains, as indicated by heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM'. The ML classifier and ClamAV detection strongly suggest malicious intent. The primary function appears to be redirecting users to potentially harmful external content, consistent with phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

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 http://mashtalkandil.com/userfiles/file/rejuf.pdf In PDF document text
    • http://mazdooradda.com/userfiles/file/73030954797.pdfIn PDF document text
    • http://minutemen-jrotc.com/clients/84940/File/pexirudujabitugosi.pdfIn PDF document text
    • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/2ce900a8c71d7af239d0c9137e1b4a9d/69375186424.pdfIn PDF document text
    • http://bielwod.com/userfiles/file/12958306497.pdfIn PDF document text
    • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/160c2ae6241f05---mofozupiderufu.pdfIn PDF document text
    • http://ghalemdi.com/userfiles/file/85174039268.pdfIn PDF document text
    • http://wawabed.pl/uploads/userfiles/file/20809182192.pdfIn PDF document text
    • https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/90d99e1543276ff251203aac4f59c416/xapojigepugunexibafogi.pdfIn PDF document text
    • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/0ldu7cjrreltaq7dugdkukdhld/70945672564.pdfIn PDF document text
    • http://apsons.eu/files/file/datijodemumukujawub.pdfIn PDF document text
    • https://bouveau-consulting.com/userfiles/file/lunulonajulupujo.pdfIn PDF document text
    • http://metallpress.ru/files/tonirof.pdfIn PDF document text
    • http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/f2104a1ac626e061ed85044afbfd80f0/zageberuparas.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c89de94b0f---21887197144.pdfIn PDF document text
    • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbe3121c21---64559125596.pdfIn PDF document text
    • http://www.reenactmentmarket.eu/images/wyswig_images/file/fenugimulegajijunanud.pdfIn PDF document text
    • http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae36d587653---fibikofesatefupowox.pdfIn PDF document text
    • http://beachhigh65.com/clients/879402/File/lonibipusuwun.pdfIn PDF document text
    • https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/0s40u38gsk9rhl0vv28a1ouhqu/xaliduvadejeluko.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b83520e1fbe---59230606600.pdfIn PDF document text
    • http://arcomproltd.com/userfiles/file/67898650264.pdfIn PDF document text
    • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607005ad22753---majizux.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160917eb941d22---45471596697.pdfIn PDF document text
    • http://abacusnancy.com/userfiles/file/roxakofopikafewo.pdfIn PDF document text
    • http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16071dc569afc0---61005108249.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=elements+of+digital+image+processing+system+pdfPDF 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_off0000f2ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2AB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010ac2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AC2 11060 bytes
SHA-256: ae680da92bdc6981b15766488aa37fdfb39b02af88225f3d1fa0d10d381b1549
font_02_sfnt_off00012446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12446 17212 bytes
SHA-256: 7dee2c10a8a982d2c70e9a52228281de195e49b6229a8b5aa68e1f72603c50b8

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