Malicious PDF — malware analysis report

Static analysis result for SHA-256 4459435beed6cc09…

MALICIOUS

PDF

79.9 KB Created: 2021-09-05 10:57:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-11
MD5: 82182c8f56f5865767f44703ecfeae3b SHA-1: 56334564d7277b45571e8ddfd756847d8993601f SHA-256: 4459435beed6cc09daaa46545b7e18698b70fa7467e3cd4103c51f63b36e60d5
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9846

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c9c0443794---19546735222.pdf In PDF document text
    • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/b1imv8oa2s19id1n4ap4lnnnt7/domosivofaditum.pdfIn PDF document text
    • https://aashianarealty.com/file/mitulurolewodome.pdfIn PDF document text
    • http://jaatkinson.com/userimages/57817350460.pdfIn PDF document text
    • http://dolphinegypt.net/userfiles/file/76308941059.pdfIn PDF document text
    • http://potlista.com/file/files/nazimiri.pdfIn PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078fdc0508a4---fogiwi.pdfIn PDF document text
    • https://rlmahtani.com/userfiles/files/jijawugewibibiwiv.pdfIn PDF document text
    • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/62b080688d57eb8cc2b4d7f32f39d160/vimekuvafiwiletudov.pdfIn PDF document text
    • http://westfallassociates.com/documents/file/gagofoweturixebawus.pdfIn PDF document text
    • http://afghansolar.com/userfiles/file/43754362418.pdfIn PDF document text
    • https://generalaudit.pl/eurostyl/photos/file/34635645810.pdfIn PDF document text
    • http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/8333b04bf0215d8fe0d84816c06f1a93/temupupewidisezoxaripug.pdfIn PDF document text
    • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/5b6d61dff7a77a604b74555823ef8823/48465065954.pdfIn PDF document text
    • https://immobilgold.com/file/gadanuzunuwan.pdfIn PDF document text
    • https://hazeloyun.com/calisma2/files/uploads/faren.pdfIn PDF document text
    • http://mldinsaat.com/image/files/guvugigekokezexex.pdfIn PDF document text
    • http://funperm.ru/content/file/zurusarajedefimotibagi.pdfIn PDF document text
    • https://www.nvsrolko.org/ckfinder/userfiles/files/bopivuvixuxad.pdfIn PDF document text
    • https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/37d8c5611d209b37c8d5e45a8179a05e/27553591634.pdfIn PDF document text
    • http://phanphoiongnhuahoasen.vn/upload/files/34505908643.pdfIn PDF document text
    • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/f086c0a49c6c04197d0b0a3b9f5075e6/lagemimel.pdfIn PDF document text
    • http://teplospectr.ru/images/files/mifotivupapix.pdfIn PDF document text
    • http://sskj.pl/userfiles/file/mubare.pdfIn PDF document text
    • http://phulieumaymacbaoco.com/hinhanh_fckeditor/file/34681304100.pdfIn PDF document text
    • http://24horasnoar.com.br/ckfinder/userfiles/files/ravadodogojamufakiraxiwu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=sensitivity+test+antibiotics+pdfPDF 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_off0000d6ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6ED 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000eeff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEFF 16496 bytes
SHA-256: 3624cd874fae89045887160398146bdf0d010c91cc41713458de0a9d9af7a40a
font_02_sfnt_off00011949.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11949 10860 bytes
SHA-256: 0f5e72c4dc4d814e8dc4112921c75a3daa281973622135e1d8e62c80ead45dfa