Malicious PDF — malware analysis report

Static analysis result for SHA-256 46f8bc91923682a2…

MALICIOUS

PDF

86.7 KB Created: 2021-06-26 14:46:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 9f0fcd2d317a06b6686a9fc6e75f8f15 SHA-1: 3cc286f2c602b54d8d1df8006781065b125eda46 SHA-256: 46f8bc91923682a21dfc2bb2a735a17a087ec2d4118504aa7b54e38ea2feab19
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to potentially compromised websites and disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were directly extracted, the structure and URL patterns suggest the document is designed to lure users to external malicious content.

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://garglob.ru/uplcv?utm_term=state+wise+national+park+pdf PDF link annotation
    • http://bkbflooringusa.com/userfile/abbey/file/ruxuwusora.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/80aaa8b4eef4c017b4d0d16f0734fa22/muzegegofedizoxupe.pdfIn PDF document text
    • http://ricarda-allegra.de/userfiles/file/mumuxubamogejevizakone.pdfIn PDF document text
    • https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/e66998ec95e5dda58aa05126104bf3e4/88030361098.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607bf178ab661---68886322080.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/765d37f2e83c4e396b98429950357125/varemagomobuwadifap.pdfIn PDF document text
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/01e92e2517ac55094bc5c4f8610ee967/wesapuzi.pdfIn PDF document text
    • https://irantruck.ir/data/file/vubijomusixuwezajemumeka.pdfIn PDF document text
    • https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/72fde9395486cf31ffac6f5e5ebab755/4766264929.pdfIn PDF document text
    • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/92f35235d23e10d9797da7305ccecf14/96203339978.pdfIn PDF document text
    • https://rubyyadav.com/nbloom/fckuploads/file/noruxuzipipiwuxapalex.pdfIn PDF document text
    • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/3ceboc95h21ura57tvuph3ap6f/lupuvogajike.pdfIn PDF document text
    • http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/70012714586061e36164b69cae662ea5/fukasizeramovonafiv.pdfIn PDF document text
    • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fac3dbde5a---91627762737.pdfIn PDF document text
    • https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/79760cbeb3d4d0ebee9069b67583e0d3/pazelunogedog.pdfIn PDF document text
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160988352dd1ec---petasuzuje.pdfIn PDF document text
    • https://alexandrapanayotou.com/web/images/static/file/zimexesogujisanetozuwod.pdfIn PDF document text
    • http://nousgarage.com/userfiles/file/71536695812.pdfIn PDF document text
    • https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/idnbuoqdnk1s5h13khft10sntp/40465884870.pdfIn PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607cd7934b53c---samibivosagowisuzevetitaz.pdfIn PDF document text
    • https://nikosdimos.gr/userfiles/file/78398039881.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085ff4e1252c---nesikozafeful.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_off0000ed88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED88 17908 bytes
SHA-256: d6721792aed8ff316220b460351d76563476831b36a4105a4e3af2fa18d72158
font_01_sfnt_off00011cc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CC9 10744 bytes
SHA-256: 6b6dc5833221f9f954ce399606d9cc2d99ddecbf320ff288983edb56bf8503dd
font_02_sfnt_off000135a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135A3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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