Malicious PDF — malware analysis report

Static analysis result for SHA-256 48280e5c84566037…

MALICIOUS

PDF

84.8 KB Created: 2021-06-27 03:10:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: bd8d4a361731761d8f1ea92fb68a445d SHA-1: 6a31eb6c56f82939304283ad7a2060545610c02a SHA-256: 48280e5c84566037d236be0a5808bb5943a707599140ab78b2597d1a8f05d471
156 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs that point to compromised WordPress sites and disposable domains, indicating a link farm designed to lure users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. No scripts were extracted, and the document body was unreadable, but the heuristic firings and URL analysis are sufficient to determine the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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://synerhu.ru/uplcv?utm_term=magnetic+free+energy+generator+ppt PDF link annotation
    • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/0c8557d331dc6121519e5cd4567b041f/vewewemozo.pdfIn PDF document text
    • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16072f8685442b---43273311081.pdfIn PDF document text
    • https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/3uis4jv9u0fqbsbg1sncdabqj0/64529303085.pdfIn PDF document text
    • http://maihome.hu/admin1/file/17523980429.pdfIn PDF document text
    • https://aduanaldelvalle.com/userfiles/file/wajanobajojamagizirogis.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/9a14671843c556cb1cd1cc6628720c96/30893441758.pdfIn PDF document text
    • http://berbun.com/user_img/file/87538187867.pdfIn PDF document text
    • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ab30a793d7f---winajapusowezalibujupe.pdfIn PDF document text
    • http://archimax.ch/dynamic-images/cms/file/guvetu.pdfIn PDF document text
    • http://crabandclaw.com/uploads/files/debofu.pdfIn PDF document text
    • http://brandnewgoods.net/userfiles/file/pegixasu.pdfIn PDF document text
    • https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/eee3496b2e936010a39fdfdce764d521/ginogisumajev.pdfIn PDF document text
    • http://acecaalcoy.com/userfiles/file/nipetajorilalejugegugiw.pdfIn PDF document text
    • http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc469532e1---duzejunibosawojepawef.pdfIn PDF document text
    • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7c19b6b65---95545896130.pdfIn PDF document text
    • https://aslimitada.com/userfiles/file/rofevutugapuwivizu.pdfIn PDF document text
    • https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/40d99c60b9eefacfbdb2bb773f0fd6e4/89570973273.pdfIn PDF document text
    • https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/ff706cd0a12c77912aea539dea66a599/faveju.pdfIn PDF document text
    • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/k02uo476odg5fr4l9bunbkf06h/45793617394.pdfIn PDF document text
    • http://imbirimbir.ru/files/sidujomusitosofa.pdfIn PDF document text
    • http://greatnice.club/updatefiles/file/55284542706.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607794f862f41---vatuxinedeluvogejimilagis.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_off0000e71e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE71E 10548 bytes
SHA-256: 7c33df3a03ffe82441bc7b2cdb62fbd0f235209f43927104f1c081ad60a0ac68
font_01_sfnt_off0000ff56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF56 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11768 17240 bytes
SHA-256: 0167dc4f78c28d4be91ea7c2800bd23216a46540334c762335796a740f90e227

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