Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d870d46db2cc4af…

MALICIOUS

PDF

90.4 KB Created: 2021-07-17 22:17:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 77b05a5aec045442aa2ae44121059498 SHA-1: cf6c81adeff400dbf33e2453f0ce99c84c5e1650 SHA-256: 5d870d46db2cc4af6c6ccbc9cf3ee1e7381f8cf1fc08aac4ca0737d1a12c71fa
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9937

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://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/8c5f1acc35f7965567732e36466aea82/kodojapubebisobafageke.pdf In PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/vn886pnm0pa8m6l9to4d1677ac/tenasasuzanotam.pdfIn PDF document text
    • http://ort168.com/upload//ckeditor/files/xavavosazekor.pdfIn PDF document text
    • http://greddy.com/admin/common/ckfinder/userfiles/File/7886139332.pdfIn PDF document text
    • http://hieuchuan.com/upload/files/rafokepibok.pdfIn PDF document text
    • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/6add708284efb2614fba5c16497148cd/89468860586.pdfIn PDF document text
    • https://avgdesign.com/userfiles/file/duxijenifajuf.pdfIn PDF document text
    • https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160863001cef9e---24909416423.pdfIn PDF document text
    • http://studioarchperissinotto.eu/userfiles/files/88399741618.pdfIn PDF document text
    • https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/677b06104272c6797b505b25707c0baa/91447732796.pdfIn PDF document text
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b53dca2e527---26337261289.pdfIn PDF document text
    • https://svetpoznaniyaonline.ru/wp-content/plugins/super-forms/uploads/php/files/b07238ac8aa3c307cd5d87e176e25d82/pizijatatiwuvedavosegemi.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d519e89e166---93870765284.pdfIn PDF document text
    • http://easternsheep.by/app/upload/file/17414418615.pdfIn PDF document text
    • http://healthywithhart.com/res/file/11667552596.pdfIn PDF document text
    • http://wannawwannie.pl/userfiles/file/butabutijesanukufene.pdfIn PDF document text
    • http://aygroupmuh.com/image/files/sezudisorugu.pdfIn PDF document text
    • http://lyshiying.com/d/files/jajitolomerizupoberinore.pdfIn PDF document text
    • http://afro-safari.com/upload/files/mivogonamezijikujimugoke.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/tgog842mkqk0beicnjn5blgj22/73164514747.pdfIn PDF document text
    • http://ekonopuntos.com/campannas/file/7414607175.pdfIn PDF document text
    • http://gwardiajuvenia.pl/zdjecia/fck/file/repapovanuzawuda.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/08j01in0gfd18lkkmk28k2gvg4/16374953741.pdfIn PDF document text
    • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/ab83d8d91b7a07c5699e3c184a5c0f61/55645564580.pdfIn PDF document text
    • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608d0b3abf0c7---powubalu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=very+fussy+baby+4+weeksPDF 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_off0000ffb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFB2 10328 bytes
SHA-256: 22daa6c17c412a59e3b611684e01a3e3ee3f5b8d22ed2bb3088ed7b86a437267
font_01_sfnt_off00011749.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11749 17876 bytes
SHA-256: bbafcf40e0aee05cf89a7b32d4ea858d4d438198b42631f13e1ab558e1713720
font_02_sfnt_off0001448a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1448A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1