Malicious PDF — malware analysis report

Static analysis result for SHA-256 79333f4743e4aa7e…

MALICIOUS

PDF

69.1 KB Created: 2021-10-10 17:20:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 765f47b2b094bc599c88812c865d3a46 SHA-1: ba11bd06252cfe73f1ea4127102db8f42fc15c11 SHA-256: 79333f4743e4aa7ecafc9afa7c1564d110fd7cb750cb931b24bc0ea3928e2a41
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://nomylo.ru/uplcv?utm_term=chief+information+and+digital+officer PDF link annotation
    • http://christopherspubandgrille.com/userfiles/files/jozuvezusunijivajuvimavi.pdfIn PDF document text
    • http://kanoonkaraj.ir/dbmanager/filebank/htmlgallery/file///dulina.pdfIn PDF document text
    • http://www.urbanwaterways.info/files/mupugaxusu.pdfIn PDF document text
    • https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/17928398f0bc2038ae39aeb00acc3384/93171683653.pdfIn PDF document text
    • http://hoadon-dientu.net/images/files/16262564568.pdfIn PDF document text
    • https://myphi.biz/nbloom/fckuploads/file/78218646338.pdfIn PDF document text
    • http://familie-schiecke.de/images/file/sovuzegilotaritijawete.pdfIn PDF document text
    • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/161590bc84daf8---rijezatuxazidelewa.pdfIn PDF document text
    • http://gesundezellen.de/neu/userfiles/file/51046247591.pdfIn PDF document text
    • https://roshnaai.com/ckfinder/userfiles/files/gubezo.pdfIn PDF document text
    • http://restaurant-lyons.fr/userfiles/file/62950856555.pdfIn PDF document text
    • http://vocal.bpv.su/content/files/files/92487804233.pdfIn PDF document text
    • http://metabolit.ru/files/file/59023473580.pdfIn PDF document text
    • https://mimpishio1.com/contents/files/42060711846.pdfIn PDF document text
    • https://pragatitic.org/ckfinder/userfiles/files/kijinewasodegavufufodi.pdfIn PDF document text
    • http://tks-forever.com/upload/2021/10/10/file/dalosa.pdfIn PDF document text
    • http://mascotdd.com/file_media/file_image/file/sifapisusupawoguje.pdfIn PDF document text
    • http://ues-rb.ru/themes/ues-rb.ru/files/pepaxizegag.pdfIn PDF document text
    • https://fitness-base.tw/uploads/files/202110051048446877.pdfIn PDF document text
    • http://thegioimercedes.com/upload/files/65285525400.pdfIn PDF document text
    • http://xn----ctbguteehkho5h.xn--p1ai/ckfinder/userfiles/files/66303530358.pdfIn PDF document text
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615e873a7d6cc---82963402407.pdfIn PDF document text
    • http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614896ab19b1a---88603613720.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_off0000b0ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0EC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c8fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8FE 14944 bytes
SHA-256: 43e131dcb8f760538737b37c9f6f769c9f7deb5dce4041753ff6470ece334419
font_02_sfnt_off0000ee81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE81 10784 bytes
SHA-256: c75c77b93820d7b5a7ba1b0d54564ffb3879fd657bebd3058e20febf4ff560e8