Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2232e7f467023c…

MALICIOUS

PDF

86.0 KB Created: 2021-08-07 11:34:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 1a29b57952fbfca963e2f256c5bacf02 SHA-1: 7c1c14b52c4d3b93237e99ca9a9f737d0ff5252b SHA-256: af2232e7f467023cb0763bd1af7b5d11257598d0798b5fb0eff6a5642514559d
104 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://benly-carson.com/product/files/8122040308.pdf In PDF document text
    • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/051527f8bb689ff4245d60d7c91f1f68/bubisepibuwukazapifuxuxe.pdfIn PDF document text
    • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/e61306n22j0fbh396m7f3kasv1/dawimomogo.pdfIn PDF document text
    • http://asianaccounting.com/admin/fckeditor/userfiles/file/75682079092.pdfIn PDF document text
    • http://homeopathyhongkong.org/files/zezisejadovudutofewo.pdfIn PDF document text
    • https://www.axelendinggroup.com/wp-content/plugins/super-forms/uploads/php/files/fb798677690809f068f5f7885c178833/barajabiremafemelo.pdfIn PDF document text
    • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a537f5dc74f---96777256914.pdfIn PDF document text
    • http://mnogonomerov.ru/uploads/file/busuruzuli.pdfIn PDF document text
    • http://chiangmaicharmingtravel.com/ckfinder/userfiles/files/momalenivexuwegosagave.pdfIn PDF document text
    • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/cc16f8e9e659c69289eb1735075b9492/12915929818.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c15a6b07c58---bovozozizotamojo.pdfIn PDF document text
    • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e5c3cb6531---nixadudasozukinasob.pdfIn PDF document text
    • https://sluganarodu.org/userfiles/files/kubalerop.pdfIn PDF document text
    • http://clubselectionvoyages.net/images/file/30584289234.pdfIn PDF document text
    • http://dianacb.cz/userfiles/file/lakig.pdfIn PDF document text
    • https://efnnma.org/files/file/78744420223.pdfIn PDF document text
    • https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/80e07773e05456ccb5007ba3a6144c7b/xafirovezafeda.pdfIn PDF document text
    • https://pablohernandes.com/wp-content/plugins/super-forms/uploads/php/files/286c0a629239ccda9e3f825ac2eac245/49805442643.pdfIn PDF document text
    • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/81tti9pkjo3m41ceiconsqqu0j/zuzogenorijojagibixaso.pdfIn PDF document text
    • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fbcd6022625---20618857534.pdfIn PDF document text
    • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c361882c007---63112223420.pdfIn PDF document text
    • http://china-hold.com/UploadFile/file/20210603185011266.pdfIn PDF document text
    • https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/c6101ffa73a66359f49a36bab385786d/kebetewonaxivob.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=cubase+elements+8+activation+code+keygenPDF 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_off0000e870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE870 11364 bytes
SHA-256: 0487eb7313fb1c4d2fbfd9c0d5ce498a66c22047626e27a1b773f3cb3d500ed3
font_01_sfnt_off00010311.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10311 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011b23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B23 17440 bytes
SHA-256: 10a8833158ec520a097a34ded4768c19d015f0eba6ba7b9c162027301bf540cb