Malicious PDF — malware analysis report

Static analysis result for SHA-256 222fa69609d53cf2…

MALICIOUS

PDF

95.9 KB Created: 2021-06-27 16:33:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: d1057d3b151eccc6589c92257f5c213f SHA-1: 9bc2196436b859c38bf8e81cb15906f39311b13f SHA-256: 222fa69609d53cf2b8d738812c00f8ddd4d92ec7fcf37e80fe38155833e35c78
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of a phishing or redirection attack, likely initiated via spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 7

  • 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 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 https://queure.ru/uplcv?utm_term=simple+bolognese+sauce PDF link annotation
    • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/s8kncnj5fpe5t17kpo23hrjg25/kejopupomaxumutugupali.pdfIn PDF document text
    • http://bocghebinhduong.com/media/ftp/file/zapirikopitevibaloje.pdfIn PDF document text
    • https://hanul-muresenilor.com/wp-content/plugins/super-forms/uploads/php/files/2q5ininl3fv0qv38o7cbb8lnn0/gowapefixeguwilunimeb.pdfIn PDF document text
    • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/vigarepovedegixipi.pdfIn PDF document text
    • https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/1090402f58f0f2d0fabb34a5bdb4593a/pularidonukelotubufomoxir.pdfIn PDF document text
    • https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/60bhhftvnku0dnrtvmpoqm01kh/rixapuvolabiwop.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/tgsp2v7rpvd7nhga1bfsic3oa0/96216935092.pdfIn PDF document text
    • http://skogsformedling.se/bilder_umeny/File/fekujiwerakabiw.pdfIn PDF document text
    • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/102bbd8e5dc5f75e9500ef3bf3105205/xowizezuzapasowovulofeb.pdfIn PDF document text
    • http://sungsam.net/userData/board/file/vifavudijokowebim.pdfIn PDF document text
    • http://kanstm.com/ckupload/files/10012276898.pdfIn PDF document text
    • https://foodvellythailand.com/upload/files/romowav.pdfIn PDF document text
    • http://alexanderjamesbackcatalogue.com/userfiles/file/35724486835.pdfIn PDF document text
    • https://www.webplease.it/wp-content/plugins/super-forms/uploads/php/files/hdqpihilspp4suqqlpkncg78oo/22956558340.pdfIn PDF document text
    • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a589198eaf6---61417434842.pdfIn PDF document text
    • http://freewest.at/rumipikapamawefebidusot.pdfIn PDF document text
    • https://ovistar-dz.com/ckfinder/userfiles/files/jarixilo.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/lbf0hrc7ogo07og1e6q1j6kmr6/rovosalemek.pdfIn PDF document text
    • https://trellisdundee.com/wp-content/plugins/super-forms/uploads/php/files/1fc8004a95857a4a7c098bb4b4c0b08f/malomorenefefig.pdfIn PDF document text
    • http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/uo9fmk0dnv9hoku7515mjpch63/bunipugiborexotorapi.pdfIn PDF document text
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b999f16ed0b---monasewodaradodebixol.pdfIn PDF document text
    • http://au-coeur-du-temps.com/userfiles/file/35825035584.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9E2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000111f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111F3 16332 bytes
SHA-256: fc591e03df5a0f0191ca42a0c9ef28ea759393cdb17321977ed26c5580252296
font_02_sfnt_off000127f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127F7 10836 bytes
SHA-256: 04e7dbfd38c6572ada52d7d4fee26c9e8f1e1c1041c73aa35e5afd908bf2c217
font_03_sfnt_off000140aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140AA 18104 bytes
SHA-256: cb0343b23cf82f335e37b54b07878ecb21b0fd6b7ef3697f92ee1831d705cc47

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