Malicious PDF — malware analysis report

Static analysis result for SHA-256 9016b2d39421e42e…

MALICIOUS

PDF

98.2 KB Created: 2021-07-08 04:16:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 5db9e43d6b4fb6b33d470ba2a9abc6e0 SHA-1: e6a6d9aa5f80e884ebaf9134ed9342e56e99f250 SHA-256: 9016b2d39421e42e1972113b097f1b28782f4492f67218dc3a65cb901886cc4f
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9924

Heuristics 7

  • 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://btfa.tw/upload/files/fubupezodijuwobab.pdf In PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/6cld8pjpomrd1c3nf0p2net6k2/nudagatuzalifuturewegopa.pdfIn PDF document text
    • http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070cc229ea43---13740801076.pdfIn PDF document text
    • https://bdcomunicazione.it/file/vozegalesed.pdfIn PDF document text
    • http://host.keraladreamhomes.com/~viswabrahmathach/admin/fckeditor/editor/filemanager/connectors/php/userfiles/file/wapekezotaridubixuv.pdfIn PDF document text
    • http://interel-rus.ru/test/sites/default/files/file/pumapavelolufozi.pdfIn PDF document text
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/de19fe6a09c2858382c44548a578ba9c/xagofusalivodarofem.pdfIn PDF document text
    • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/77d7b0733fb8802c2a4cd335e9cf5934/getit.pdfIn PDF document text
    • https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/40df1f38be8d8a6ef6e8bc60e8cdaf7f/fabebulabagupugopisibu.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160741e11a8ace---beretexisevibasem.pdfIn PDF document text
    • http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/3mof692g4r7ufdfsrul5k0368b/bixutukozok.pdfIn PDF document text
    • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/aekqr4l6stb7o2a3q08k67hfjf/67691294258.pdfIn PDF document text
    • http://dansensvenner.dk/imagesfile///jatutadolatamamatewo.pdfIn PDF document text
    • https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1c4098857---xelopel.pdfIn PDF document text
    • http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/022a0c2c5a4c1dae87af8930f52d0f01/3579896258.pdfIn PDF document text
    • https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/ae04773cea1680b1729b13db4301b300/95648128263.pdfIn PDF document text
    • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/hhe0hk2ldvc8nluat32pmpfnuv/82424820688.pdfIn PDF document text
    • http://gpszone.hu/upload/userfiles/file/xujenufesedoxug.pdfIn PDF document text
    • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/a38ae5677e5b2b70c1e61cd5ea440bce/90134864729.pdfIn PDF document text
    • http://ruresept.ru/files/file/69692264572.pdfIn PDF document text
    • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/d4b0e30cd29c3faa8a5fa876abee00f0/547093253.pdfIn PDF document text
    • http://mnwebdesign.dk/userfiles/file/buvirorexomoladuvi.pdfIn PDF document text
    • http://amadpich.com/userfiles/file/61850348837.pdfIn PDF document text
    • http://bydnjl.com/userfiles/files/tofisufigim.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=small+beautiful+thoughtsPDF 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_off00011dea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DEA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000135fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135FC 17536 bytes
SHA-256: 747061c222ac19c5aaf7d6a072c3e1223172337685c72fdb94c2e311d8acf7c9
font_02_sfnt_off000162c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x162C8 10772 bytes
SHA-256: 5e3dbaa018120f959bca2c342f22f3ac8f1d7d76880e3f412389deec83f2887a

Open this report in the interactive analyzer, or submit your own file for analysis.