Malicious PDF — malware analysis report

Static analysis result for SHA-256 7263a975ff61dff2…

MALICIOUS

PDF

86.5 KB Created: 2021-07-03 10:13:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 9d6318c41db1c3256eab02aee0c1e38a SHA-1: 7269e94488e3bd92494012934bb69c2d8aacbae0 SHA-256: 7263a975ff61dff2963ee60e06ff49df7f5402b1500314a004afa23f9f5f4dcc
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links pointing to compromised WordPress sites and other disposable hosting, indicating it functions as a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The embedded URLs are the primary indicators of compromise, leading to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098345f499ae---dawomozelebilugitexan.pdf In PDF document text
    • https://almoheetmanpower.com/public_html/userfiles/file/kuvozeto.pdfIn PDF document text
    • http://terezmisszio.eu/files/file/52142986346.pdfIn PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f9af0c896c---80583912181.pdfIn PDF document text
    • https://airflow-skateboards.com/upload/file/jamazobidipe.pdfIn PDF document text
    • http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/160b51c1fc5c0e---gerutaxunarunutogi.pdfIn PDF document text
    • https://funkydrop.shop/wp-content/plugins/super-forms/uploads/php/files/a04630f077a61177c791ee37cc45dfd0/38874974973.pdfIn PDF document text
    • http://wami.cc/data/files/37181218655.pdfIn PDF document text
    • http://maekalocal.com/Maeka/UserFiles/File/kadoxuxakewurufe.pdfIn PDF document text
    • http://stalmost.pl/userfiles/file/98886755833.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cddb4b5d3f---xijigipiruvizeviterefo.pdfIn PDF document text
    • http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e9a8ed9699---bimewi.pdfIn PDF document text
    • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8b82bd2c78---71647703275.pdfIn PDF document text
    • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/e6b61d324be03a30a45787ed8d452503/12682054966.pdfIn PDF document text
    • http://kcde.kr/userfiles/file/nodubigomuvokazabuzatibu.pdfIn PDF document text
    • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/6f81c74a620c21434159e464c90234a7/puvuvonikonadugipivefup.pdfIn PDF document text
    • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082c30c633f3---49823321541.pdfIn PDF document text
    • http://dok-vo.ru/userfiles/file/74560763990.pdfIn PDF document text
    • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/9t9ehtm5aec4b2vu39ei2g8so2/84054428718.pdfIn PDF document text
    • http://investin-khj.ir/ckfinder/userfiles/files/49520096454.pdfIn PDF document text
    • https://iamtimeshare.com/userfiles/file/17043077244.pdfIn PDF document text
    • http://vaness-sens.fr/ckfinder/userfiles/files/23237886159.pdfIn PDF document text
    • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/ea6d05e0ccc7e7ab4eda8db8b1167115/wasivetevofatibu.pdfIn PDF document text
    • https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/fajhvj05fi6rlsh51dc0cvfo0f/10460996920.pdfIn PDF document text
    • http://crocepadrekolbe.it/userfiles/files/81648627357.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=i+am+exhaustedPDF 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_off0000f243.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF243 10204 bytes
SHA-256: 352b92699dec6f5fcedceafddd93cdec2b957469536a9f239f8778e9211d3044
font_01_sfnt_off0001092c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1092C 16812 bytes
SHA-256: cbe58c415810a1f96da99f7f30199fadcf2342a7e9f91def63688dab6ad9890f
font_02_sfnt_off000134df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x134DF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1