Malicious PDF — malware analysis report

Static analysis result for SHA-256 217906149b17e1f6…

MALICIOUS

PDF

83.4 KB Created: 2021-09-17 02:32:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 49f700b2b548b09e3abbe4bdde16a099 SHA-1: 7a0ee4634b2d338eeb48cffce12429a9a320353f SHA-256: 217906149b17e1f63f6b52314296dcb321bee78bd7ee3296058b0e7bd42bf121
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm used for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and URL patterns are consistent with malicious document delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/16140fc7cc3fce---dedetonavi.pdf In PDF document text
    • https://holycrosshealthcare.com/userfiles/files/94159218887.pdfIn PDF document text
    • http://bsa-billiard.by/images_from_html_editor/file/39420302312.pdfIn PDF document text
    • http://igigeothermal.jp/userfiles/file/6416375787.pdfIn PDF document text
    • https://cnc-ar.ro/files/file/woletegoxogotakunuwefofof.pdfIn PDF document text
    • http://megamento.com/_UploadFile/Images/file/83296415706.pdfIn PDF document text
    • https://dermatologie-francophone.com/userfiles/file/jigajibe.pdfIn PDF document text
    • http://macautemple.com/userfiles/file/gowil.pdfIn PDF document text
    • https://girisimhaber.com/uploads/file/naxufavazifamaroferunugof.pdfIn PDF document text
    • http://cpbnatation.fr/fckeditor/userfiles/file/xalitatikemexevuto.pdfIn PDF document text
    • http://businessnavigator.in/ckeditor/uploads/files/wexevefitovixupenito.pdfIn PDF document text
    • http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec050e0063---sivonukaziselozebi.pdfIn PDF document text
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/16143b90cb2601---82432697355.pdfIn PDF document text
    • http://www.logomarcanet.com/userfiles/file/32755966489.pdfIn PDF document text
    • http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613719335e2c4---10844209777.pdfIn PDF document text
    • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/16130cff04b08d---61323192960.pdfIn PDF document text
    • http://rungrawin-itt.com/userfiles/files/gezuxiroxozuf.pdfIn PDF document text
    • https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/fitk5amops1f30gvqm8svlhabj/xanuzuxofawerix.pdfIn PDF document text
    • http://goldendazzle.com/upload/quangtri/files/bularadoromijujenexigan.pdfIn PDF document text
    • http://serbanindustrialconstruct.ro/uploads/files/14777063668.pdfIn PDF document text
    • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161333e45878d1---64173313952.pdfIn PDF document text
    • https://protectname.xyz/whoisprivacy/userfiles/files/55982580375.pdfIn PDF document text
    • http://tobn56.com/UpFiles/file/botixotopitukizugal.pdfIn PDF document text
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f2fadb7dcc---gemolefelokazozurifa.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=future+will+going+to+present+continuous+present+simple+exercises+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_off0000e0b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B1 17240 bytes
SHA-256: d1a1648caf2c0d41ce810dd44cf890d2e932c7b6ad9e3d43137defa59e24a350
font_01_sfnt_off00010d67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D67 11068 bytes
SHA-256: e2434e90c10f31d9a26d0b130a3f8043902d01c517807539fc3878f3fcb043cb
font_02_sfnt_off00012702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12702 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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