Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3a1e487de2b0f48…

MALICIOUS

PDF

88.4 KB Created: 2021-06-28 17:55:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 6c435e0001aed77423c0be3546456700 SHA-1: 1146e8dde9ab53ddc8ab8857038345a40912cd7f SHA-256: f3a1e487de2b0f48874cccefaedbf7bd14302a8c2057bb6214f0091e58002106
156 Risk Score

Malware Insights

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

The PDF file contains numerous links pointing to compromised WordPress upload storage and disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery. Although no scripts were explicitly extracted, the heuristic firings and URL analysis point towards a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608035c94a1d8---mopomifejudi.pdf In PDF document text
    • https://amblamy.ee/upload/file/38249818444.pdfIn PDF document text
    • http://bearings-home.com/userfiles/file/nevapikusijod.pdfIn PDF document text
    • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607fbe6790a12---59535795825.pdfIn PDF document text
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160962678b8caf---67248144763.pdfIn PDF document text
    • https://nhorizontours.com/userfiles/files/66008809333.pdfIn PDF document text
    • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c075e452dc7---guziwalisokun.pdfIn PDF document text
    • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160bcdf86622b4---majazezu.pdfIn PDF document text
    • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/b66ffc148bc8662a72f6460a08774ebb/25218584173.pdfIn PDF document text
    • https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/4uln3ng0g76ans4p2u52b7hsa5/92503022694.pdfIn PDF document text
    • http://healthywithhart.com/res/file/71523720464.pdfIn PDF document text
    • https://ptogel2.com/contents//files/gadaj.pdfIn PDF document text
    • http://www.awakohchang.com/image/upload/File/9706295499.pdfIn PDF document text
    • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/18b862c3a0a80d1ee357349202a368d0/55918138920.pdfIn PDF document text
    • http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609ee4e05606e---3725894740.pdfIn PDF document text
    • http://bike-aholic.com/UserFiles/file/17996770896.pdfIn PDF document text
    • http://www.77ice.com/upload/files/44807509268.pdfIn PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/c27530a41a2ff2396e05a91efe1199b2/koduvalipakadoto.pdfIn PDF document text
    • https://eltonltd.ru/sites/default/files/uploads/fomupiran.pdfIn PDF document text
    • http://assushop.com/userfiles/assushop.com/file/kifutefexanemugaxufovod.pdfIn PDF document text
    • https://binarbaid.com/public_html/userfiles/file/tigeraduwaronolakilanewaz.pdfIn PDF document text
    • https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/dfcbff08c4ac4d9b2bac0243508b15b0/vegizixakumawinakofovo.pdfIn PDF document text
    • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/8681394845332f73ebbdc95fdbe73270/sodupuviju.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=double+taxation+examplePDF 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_off0000f8f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8F9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11110 10488 bytes
SHA-256: b8eac1a20afbfbaa8cc60ed75feea7da1b4e8ee74a047e514b6bf98bef109cdf
font_02_sfnt_off000128a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128A2 16860 bytes
SHA-256: 7dadfaeabb2d77ce1aa851ba0914c928af85a09313635d30f26185f979dad0fb

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