Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afda6be435be810…

MALICIOUS

PDF

90.1 KB Created: 2021-08-02 15:16:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: d3e146aab410885b37d498ba72a3e20d SHA-1: fa41e8ec1c29b743896ff8068afb0ebce37b60f8 SHA-256: 4afda6be435be8107d8b8c4e7098c2bf9074900d144711457b14f48bdc25c45a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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://allytemp.ru/uplcv?utm_term=bokutachi+ga+yarimashita+drama+watch+online PDF link annotation
    • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/78de05dd67a229926015995a7a6d834b/nuxegapilima.pdfIn PDF document text
    • https://hijaulumut.com/contents//files/13973497068.pdfIn PDF document text
    • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/u727hf6aem9dt0nhgg2dl7l865/71255301910.pdfIn PDF document text
    • http://xn----7sbab1bcaqplb0ccyi9d.xn--p1ai/files/file/jesawivo.pdfIn PDF document text
    • https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/94d01f62e8febcf66126b5df1079194a/dokelolikusov.pdfIn PDF document text
    • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/2csrtod59oi6slkflemaf98ht2/jopomusebajuxoxifo.pdfIn PDF document text
    • http://asijskepotraviny.cz/files/file/77930451162.pdfIn PDF document text
    • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c6f2358f0f5---27672702018.pdfIn PDF document text
    • https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/c6c55e0dafa39d16658e179224f91597/tevilaxavo.pdfIn PDF document text
    • https://etonbio.com/newsLetters/images/file/68143790687.pdfIn PDF document text
    • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/d9d13f617d2359060a895da81fbef689/37125764682.pdfIn PDF document text
    • http://aksaaydinlatma.com/img/editor/image/file/rofovanipanim.pdfIn PDF document text
    • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/76d179a1295d1a3788b586ed2982097f/83472675231.pdfIn PDF document text
    • https://masihpt2.com/contents//files/45452097899.pdfIn PDF document text
    • http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/4jtqfc9atcrv6ta12c1b1ter95/wadomubokiwokitowunudo.pdfIn PDF document text
    • https://nhanloc.net/userfiles/file/najev.pdfIn PDF document text
    • http://ccsl.asia/files/tawofopejewixugu.pdfIn PDF document text
    • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/357d366a5acad83fa1de448a3f18d400/zelowi.pdfIn PDF document text
    • https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/5d134bd65c8ecd0d07e59d0cc6615710/88146495858.pdfIn PDF document text
    • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607694497443c---49486274059.pdfIn PDF document text
    • http://edwindijk.nl/home/edijk/domains/edwindijk.nl/public_html/uploads/file/68931318907.pdfIn PDF document text
    • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098e96ca5b7c---88003243646.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_off0000f643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF643 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010e5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E5A 11260 bytes
SHA-256: e922d2e74e4a13fa373ef273adb7ad2d29e2cad8b25209dc70ffe65da2ffd77e
font_02_sfnt_off00012891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12891 17996 bytes
SHA-256: 0d93ce33f52822d8d93e272e0166b3fbab99c83f1486fda78e4abb4696f71f5c