Malicious PDF — malware analysis report

Static analysis result for SHA-256 782ef4e3191d64d3…

MALICIOUS

PDF

85.0 KB Created: 2021-09-13 00:10:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: da822994dcbc97eea80111a86d0e3c65 SHA-1: e6f6714dd3bc996b3b0a73a3eda198aa6a0885d4 SHA-256: 782ef4e3191d64d3324ac7e6ecaeb3d0fc852f61171e9945b0440cc296917a29
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://automsystem.com/UploadFile/file/20210910082503244.pdf In PDF document text
    • https://sdhouse.info/ckfinder/userfiles/files/57163633634.pdfIn PDF document text
    • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1613261304d194---poxaxomave.pdfIn PDF document text
    • https://showdetango.com/bafa/userfiles/file/80804720756.pdfIn PDF document text
    • http://trip-sale.ru/userfiles/file/gewibemumid.pdfIn PDF document text
    • https://creteotels.gr/FCKeditor/userimages/file/bifozapuzevarotoxijudi.pdfIn PDF document text
    • http://architettorobertafasola.eu/userfiles/files/75022641658.pdfIn PDF document text
    • http://trip-sale.ru/userfiles/file/lusiwi.pdfIn PDF document text
    • https://homeuu.biz/upload/ckeditor/pages/files/nadafagifolobeburitu.pdfIn PDF document text
    • http://capital96.com/userfiles/file/63096917158.pdfIn PDF document text
    • http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea0cc79ed9---mozifego.pdfIn PDF document text
    • https://iwistw.com/upload/files/46105522620.pdfIn PDF document text
    • http://chiesamadremarsala.eu/userfiles/files/6722786825.pdfIn PDF document text
    • https://kmkmekanik.com/upload/ckfinder/files/43474767549.pdfIn PDF document text
    • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1613943f2f02e4---mavanov.pdfIn PDF document text
    • http://escuelasfutbol8.com/docs/files/14231656442.pdfIn PDF document text
    • https://losaltos.com/wysiwygfiles/file/vefiwilugizefateno.pdfIn PDF document text
    • http://gearcon-eng.com/file_media/file_image/file/84158475779.pdfIn PDF document text
    • https://drivetripper.com/userfiles2020/files/gobafaguruxajifukotevu.pdfIn PDF document text
    • https://condominiovillage.com/userfiles/file/52766882884.pdfIn PDF document text
    • https://tpk-m.ru/files/file/lulubovamekujujeg.pdfIn PDF document text
    • http://boki.hu/editor_up/70379831868.pdfIn PDF document text
    • http://savvyais.com/userfiles/file/41910972101.pdfIn PDF document text
    • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130e4534eb1b---fetoxuduxozakunojomiv.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=game+sandbox+androidPDF 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_off0000e7c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C6 17972 bytes
SHA-256: 9462b5fbb7ed80385dac2fb1328b6586aa30d0a4c00344db85d74942fa3eb23a
font_01_sfnt_off00011645.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11645 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012e5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E5C 10548 bytes
SHA-256: f3b155f3fb6d5044687c9f7df5b0df9aac824802ebb9ecc8f1a3002b3d6f821f