Malicious PDF — malware analysis report

Static analysis result for SHA-256 d73b2e43040e4fee…

MALICIOUS

PDF

97.8 KB Created: 2021-08-21 11:51:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-24
MD5: 3a1c15053aa28a2789ace543211619cc SHA-1: 64b39107fb62c2c7393619976dd969d12e057c1a SHA-256: d73b2e43040e4feefeb87a3c3688b8c80e1c04b2dbafada0f78b08c469b750a8
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9906

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://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/d41fd6420e6d3426a9d0115c052ad7b0/bozafejafivos.pdf In PDF document text
    • http://maasmartcity.com/userfiles/file/gewavisimijoruvavevof.pdfIn PDF document text
    • http://mrukseo.pl/userfiles/file/guvixowona.pdfIn PDF document text
    • https://psychologgia.pl/Upload/file/2654008613.pdfIn PDF document text
    • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1608573a78f8f7---33942872557.pdfIn PDF document text
    • https://chilegastronomia.cl/uploads/userfiles/files/99346884925.pdfIn PDF document text
    • http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160801ddd08f0d---20847685082.pdfIn PDF document text
    • https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/0c60690f4757083286dc9d9c46ea8371/87655848484.pdfIn PDF document text
    • http://alptw.com/images/files/rasinimona.pdfIn PDF document text
    • http://crosswaysrecruitment.com/userfiles/file/kodozetexuvapumitafunijem.pdfIn PDF document text
    • https://micast.de/wp-content/plugins/super-forms/uploads/php/files/t152ksq566sil76gbekm5b8bas/mogasejumiliful.pdfIn PDF document text
    • https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160867a01bbe93---21949244581.pdfIn PDF document text
    • http://immodraft.nrw/images/architekten_agentur_images_/file/33214572365.pdfIn PDF document text
    • http://ktcz.eu/files/files/dufusunepimurutunoso.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097c55e5e8fa---28466499971.pdfIn PDF document text
    • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e20606011---62805041385.pdfIn PDF document text
    • http://nuovojob.com/userfiles/files/11812446016.pdfIn PDF document text
    • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2420a30d91---76006267560.pdfIn PDF document text
    • http://www.gesas.it/media/mailinglist/file/88277495598.pdfIn PDF document text
    • https://daaeportrett.no/upload/file/rukazasawususiguje.pdfIn PDF document text
    • https://maintogelonline2.com/contents//files/69668630105.pdfIn PDF document text
    • https://cmottaviproductive.it/uploads/file/41651387204.pdfIn PDF document text
    • https://svltv.in/userfiles/files/6154031187.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=dead+or+alive+xtreme+3+free+downloadPDF 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 extracted file (font_00_sfnt_off0000eda8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000eda8.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eda8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA8 10776 bytes
SHA-256: 8650bc2750d363cf6232569747b43b483f0dbf0abd637ce90f02ee6350f01ff9
font_01_sfnt_off00010677.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10677 13576 bytes
SHA-256: af90bae189912e845ed4cde8626940dccbf0737d00ac4d0ab9cf0f8231b4091c
font_02_sfnt_off00013150.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13150 17664 bytes
SHA-256: e786df21fdacbf8802659a8c525168740bcca85f0827eafd4a408231b1806837
font_03_sfnt_off00015fd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15FD1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1