Malicious PDF — malware analysis report

Static analysis result for SHA-256 0415d08049076b90…

MALICIOUS

PDF

101.4 KB Created: 2021-06-27 21:06:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-25
MD5: 59ad3bed77674692da9a080b8cc5c65a SHA-1: 75c4632240decba271194b48a9543463abedcc00 SHA-256: 0415d08049076b90c761b74bea5400aed2279f0e1138aa8331882f43230e5a5d
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains numerous external links, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to direct users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or content-luring attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9923

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://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/04e521745018b50a16abfb9ff20f8d72/gapibujoda.pdf In PDF document text
    • http://fluitec.fr/ressource/site-image/files/13932902912.pdfIn PDF document text
    • http://kaupa.cz/userfiles/file/41316679341.pdfIn PDF document text
    • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/4r3s41oqp4n7h4limc3kmt7jj7/98755805492.pdfIn PDF document text
    • http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c6de4145d9---bitigijikadapafesopito.pdfIn PDF document text
    • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/s01ojkqc6fb2lam836nf9a5cu8/radesagutolefob.pdfIn PDF document text
    • http://alexhofford.com/temp/files/file/retisugoxajaxusiba.pdfIn PDF document text
    • http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c78b8e9665---zedoxatopatidukuguxijesa.pdfIn PDF document text
    • https://lacecinella.com/writable/public/userfiles/file/39053277141.pdfIn PDF document text
    • http://chandigarhdatarecovery.com/files/file/23936622402.pdfIn PDF document text
    • http://alexanderkanevskyartistbiography.com/clientMedia/file/soxiderekenizax.pdfIn PDF document text
    • https://turismoporsantander.com/aym_image/files/xifaral.pdfIn PDF document text
    • https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/bf901148ba0fa29fe2678f29709895a2/wulojidaxidowubava.pdfIn PDF document text
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160842e659171e---vatinunelavivixinejapiteb.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160afcd5997ad7---namavonanujowovowabupim.pdfIn PDF document text
    • http://limoride.net/gallery/file/67729245109.pdfIn PDF document text
    • https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/3684163ea6ce95253790b91a3e948ab9/83515145695.pdfIn PDF document text
    • http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609b52795ce46---rizalibuzaji.pdfIn PDF document text
    • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//18106931641.pdfIn PDF document text
    • https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/1oh3303adav4aao6iiaer7pokd/zujadukuzomerisofefid.pdfIn PDF document text
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/6539abed35ceb8927c0811fc589904d6/68660517327.pdfIn PDF document text
    • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/gibidndsujldhjep0h187nvft7/bopigasisabefelewupes.pdfIn PDF document text
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1608815a91683d---44489332749.pdfIn PDF document text
    • https://drlanda.hu/user/file/senufuwonofitutolura.pdfIn PDF document text
    • https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/628084de5cfc1fc25f0dbee8d038d28e/lapewivega.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=systemic+failure+meaningPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012975.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12975 10848 bytes
SHA-256: 0bf0975e20465ed9a6ef1237ca9120e6479ab074101cb3c0e8b5a3ec79319b42
font_01_sfnt_off0001427b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1427B 17532 bytes
SHA-256: b70ad51a399e04d425ef2a9307b1c17aec73eb5d53427318efe8a5c05682ef77
font_02_sfnt_off0001704f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1704F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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