Malicious PDF — malware analysis report

Static analysis result for SHA-256 962b1fd7a9037a6d…

MALICIOUS

PDF

88.8 KB Created: 2021-06-26 02:14:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 074b4b8b5101e577ce65e85fa3815458 SHA-1: 9c5ce55ffe053cca86ef5e4adc749911802b9840 SHA-256: 962b1fd7a9037a6dd8f9525a4cdf739a918db20cf3ff400bb5d9bdc7f5253f72
164 Risk Score

Malware Insights

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

The PDF was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan payload. The document contains a visual download button and numerous links to compromised websites, suggesting an attempt to trick the user into downloading a secondary malicious file. The presence of multiple links to WordPress sites with form upload plugins further supports a malicious download lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d486882f6c8---26341796622.pdf In PDF document text
    • http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/b298af2859dd9e5cc05214ae713610ab/38276301426.pdfIn PDF document text
    • https://isosklo.cz/uploads/gejorunuvovusafitumenul.pdfIn PDF document text
    • http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609e81e4e9a88---logaxuporenepepevamuko.pdfIn PDF document text
    • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ac53c8b123d---nigupunodukekisir.pdfIn PDF document text
    • https://www.axelendinggroup.com/wp-content/plugins/super-forms/uploads/php/files/ea0a0c7ec662521d171e81cf9b5f98b6/digupurip.pdfIn PDF document text
    • http://cl-pub.com/files/files/81316073840.pdfIn PDF document text
    • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/4a9c8c8caf7ff3e86e9e4b3fc0dfdcac/rovofuxilotolikanupe.pdfIn PDF document text
    • https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/cc5e7ce28a239559ecdacd3076d2a17c/97707028436.pdfIn PDF document text
    • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/0d67d2beb73d330395a57e05635741e6/patawekanog.pdfIn PDF document text
    • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b79f8ea338a---gitel.pdfIn PDF document text
    • https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f8d3c5bd85---73575562851.pdfIn PDF document text
    • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c14d1c41491---pidinidoli.pdfIn PDF document text
    • https://alshamiltrading.com/alshamilfiles/file/zexopefurilaviwadafuvudid.pdfIn PDF document text
    • http://broadviewlibrary.org/uploaded_bvlib/file/pakutibidepu.pdfIn PDF document text
    • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/86a46a849fb8159d853be0cc129867d8/betesetiniwagoj.pdfIn PDF document text
    • https://dancleland.com/img/upload/file/genoxum.pdfIn PDF document text
    • http://blackhorsesc.pl/userfiles/file/45393001880.pdfIn PDF document text
    • https://digireg.dk/upload/41773550515.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/13b0d681da6629f5a0c9893a577d4136/kajonogu.pdfIn PDF document text
    • https://agentcctv.com/userfiles/file/1763518788.pdfIn PDF document text
    • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f07f371035---18491192942.pdfIn PDF document text
    • https://tavio.ru/files/file/57786015907.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=nfs+most+wanted+crack+filePDF link annotation
    • http://e1pl2.nazwa.pl/busy/fotki/file/pabunamu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF071 10792 bytes
SHA-256: cbedd36910b711441aa9eee7adcdc8d66019307c738b3b4ae57d155f3eddf279
font_01_sfnt_off00010953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10953 19984 bytes
SHA-256: 60205cb4fc0a8666988d58cdada16b942cd65344279f8d74aa83936b3a5b29f2
font_02_sfnt_off00013c30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C30 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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