Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd9bb42fd2a197fd…

MALICIOUS

PDF

86.4 KB Created: 2021-07-04 07:47:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: baa5e1c36fb9a76a5b99a4a229eeb5b0 SHA-1: 07db77f5c43d780eb2549d19129473355142fe89 SHA-256: bd9bb42fd2a197fdb70c1fa290386f47f523b31c8f6236845ae07147cca0eed5
156 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to compromised WordPress sites and disposable hosting, characteristic of a link farm used for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing campaigns. No scripts were extracted, but the structure and URL patterns suggest it's designed to lure users to external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/9e029f3619e1b3b36db30a2b49ad00be/mitidomikila.pdf In PDF document text
    • https://shen-su.eu/gfx/userfiles/files/50471617149.pdfIn PDF document text
    • https://chrmglobal.com/userfiles/file/31565170798.pdfIn PDF document text
    • http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bde3f37db66---32141313103.pdfIn PDF document text
    • https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/4c7hiti7bq5jaggst41hee7bn8/basaz.pdfIn PDF document text
    • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608e0cc2077ff---55253817970.pdfIn PDF document text
    • http://aite-materials.com/upfiles/file/zumevudovoxemobuwegoloti.pdfIn PDF document text
    • http://dentalclinicbangalore.com/uploads/fupigo.pdfIn PDF document text
    • https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/oah663q9am7aj2713df31mnodi/79066153266.pdfIn PDF document text
    • https://angkoronetour.com/userfiles/file/71238943887.pdfIn PDF document text
    • http://mazdooradda.com/userfiles/file/ligevefejifeledobafevalow.pdfIn PDF document text
    • http://backupcenters.com/userfiles/file/73112390002.pdfIn PDF document text
    • http://cfacgroup.com/uploads/FCK_files/file/83353471516.pdfIn PDF document text
    • https://www.llgnjinc.com/wp-content/plugins/super-forms/uploads/php/files/e9567e7731c8c2c846f12b397f54f80e/verebejiwosogoselo.pdfIn PDF document text
    • https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/efp9vknsm8617qc5d01divol91/xadeluliwas.pdfIn PDF document text
    • https://deltagroup.bg/uploads/file/30412276580.pdfIn PDF document text
    • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/kfhhe8416rc43o0k1c24j0q041/83027300329.pdfIn PDF document text
    • http://chizclean.ru/files/fck/file/84283637203.pdfIn PDF document text
    • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a28b49615f---nebebowe.pdfIn PDF document text
    • http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084f9880b44a---rixojejirori.pdfIn PDF document text
    • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/160b9ae41357db---firakekat.pdfIn PDF document text
    • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072189c717fb---72538067940.pdfIn PDF document text
    • http://bukharaalpharetta.com/sites/default/files/file/rugajotalurudotirolibibov.pdfIn PDF document text
    • https://aplusadvance.com/naver_editor/data/file/majivezetun.pdfIn PDF document text
    • https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607948765be0d---maginejasutodilopedokage.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=can+sugar+patient+eat+applePDF 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_off0000f08c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF08C 16844 bytes
SHA-256: c4986677d23602f8a2ae1b139702660e1b085e3b534132a51caa6b3d025542fb
font_01_sfnt_off00011c47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C47 10440 bytes
SHA-256: 6c9d04ec6c51b67ee736207afd1e31e81e3db6870d2e4c78fc78bb75b61c5ee9
font_02_sfnt_off00013417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13417 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1