Malicious PDF — malware analysis report

Static analysis result for SHA-256 6eda186762cfc96e…

MALICIOUS

PDF

130.4 KB Created: 2021-09-03 19:57:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 0534036a7e57e051eca4f0a132df4d6d SHA-1: 1e15cd57b9946d443c7c9248a1b4e70eea7ba4cd SHA-256: 6eda186762cfc96e658753a8cfbb629766689f5d07a1f3602801c12bfe1e780d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links, many pointing to compromised WordPress sites, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution through these external links. The document body is unreadable, but the heuristic firings and numerous URLs are sufficient evidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7528

Heuristics 5

  • 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
  • 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://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16116ebe486ab8---zodasadeloxivabunaxonata.pdf In PDF document text
    • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c164a5b9461---notaga.pdfIn PDF document text
    • http://odpadykj.cz/UserFiles/File/4542165355.pdfIn PDF document text
    • http://sportsgarten.com/editorData/file/dixejezonabebuxetufofipib.pdfIn PDF document text
    • https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160ae101b54263---fumimugumozitizuki.pdfIn PDF document text
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607cf57e39576---42012764886.pdfIn PDF document text
    • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/eedb57a3f1d79f7e842961451368b1ba/vejajiri.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/af21023a3e60526f07d21a1fe7a83195/pidowimulavikesuwometexe.pdfIn PDF document text
    • http://centrons.com/uploaded/file/120534525560dc044e22e37.pdfIn PDF document text
    • http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a763620418---mitawuxiza.pdfIn PDF document text
    • https://kochitaxirental.com/ckfinder/userfiles/files/24501698384.pdfIn PDF document text
    • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/36a8f8e301c9f5954a2de2cc412c0fb1/kavuro.pdfIn PDF document text
    • https://hatinhjobs.com/upload/files/99901701486.pdfIn PDF document text
    • https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160826f59263cc---24828942804.pdfIn PDF document text
    • http://studiomanzella.com/userfiles/files/18700783658.pdfIn PDF document text
    • http://hosungtour.com/FileData/ckfinder/files/20210724_574EDBF489F91B65.pdfIn PDF document text
    • http://barsugo.com/ckfinder/userfiles/files/42060421609.pdfIn PDF document text
    • http://ajtoablakcentrum.com/_user/file/pumebuwazodewimeg.pdfIn PDF document text
    • http://alrabbancapital.com/file/files/46836236496.pdfIn PDF document text
    • https://textosolutionslinguistiques.com/upload/editor/file/vebaso.pdfIn PDF document text
    • http://webs123.com/userfiles/file/figubojesaliwimunemofad.pdfIn PDF document text
    • http://ankamet.com/userfiles/file/zinameguzonenoso.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=mpow+bluetooth+auriculares+ipx7+manualPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001c780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C780 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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