Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c07d63f6bfa225e…

MALICIOUS

PDF

100.9 KB Created: 2021-07-23 16:47:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 690df021150d3340a0d26077ce9d0295 SHA-1: db8c5b54c4a3d6dce8c175ce0ff229bdcc238826 SHA-256: 0c07d63f6bfa225eb6445727d454930f8ed46b51bab46754a25d7a375925921c
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and ClamAV as malicious, specifically as a phishing or trojan variant. It functions as a link farm, containing numerous external URIs pointing to various websites, some of which are hosted on compromised CMS uploads or disposable domains. The primary attack pattern appears to be directing users to potentially malicious content or phishing sites through these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://the100voicesofgospel.de/fichiers/newsletter/file/lupufidefusexilewazijo.pdf In PDF document text
    • http://rauvuonsach.com/images/uploads/files/buvofunotomazifalexasele.pdfIn PDF document text
    • http://capitalclassof1970.com/clients/e/e7/e78cae7b17622b0161c193cbd63f4fd0/File/97287884759.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/si8tu65at825obl0us16npgtl3/xanod.pdfIn PDF document text
    • http://hasanmasat.com/ckfinder/userfiles/files/89504602023.pdfIn PDF document text
    • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f696b36f3f---vevoloda.pdfIn PDF document text
    • http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/16085f709d7b76---zobezejitedepovedefawibu.pdfIn PDF document text
    • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/bt10ieeqfe4v4h9fqblfmpnmpd/zisuvosikiz.pdfIn PDF document text
    • https://airshow-bg.com/file/pemesiwiva.pdfIn PDF document text
    • https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/3b29a2214e634795f7d6655e983965ab/48897558295.pdfIn PDF document text
    • https://agrilaui.com/userfiles/file/gaxexiwikaxamo.pdfIn PDF document text
    • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa485217a95---21552030526.pdfIn PDF document text
    • http://marthomaiticherukole.com/userfiles/file/melunidunaba.pdfIn PDF document text
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/6b1e69cc039712f3b7bf8f3afad797e3/rizararitena.pdfIn PDF document text
    • https://www.brightfieldbusinesshub.co.uk/wp-content/plugins/super-forms/uploads/php/files/g28srfs9lt1vhujitvd571o42l/kifokuzopinedexiwur.pdfIn PDF document text
    • http://jmdfhjl.com/fckeditor/userimages/file/dofadi.pdfIn PDF document text
    • http://wsp.pl/userfiles/file/80604413351.pdfIn PDF document text
    • http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094921bd138b---7206758428.pdfIn PDF document text
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160888bf4ccc63---tomanezimufuzaviluke.pdfIn PDF document text
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/16098a8ce3541e---zonumirero.pdfIn PDF document text
    • https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/eec66c5c5ecc85e7a11d8c4685380528/82833419809.pdfIn PDF document text
    • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073d4d002d54---22797419733.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=understanding+human+sexuality+2nd+edition+pdfPDF 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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000123db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123DB 17776 bytes
SHA-256: 3fee148811ac399487df6c82dbf8900e76263ef8d12d4155791abfd368d07f63
font_01_sfnt_off0001524d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1524D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00016a64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16A64 11388 bytes
SHA-256: f68c1118068d015a7786463d6df7b8750359aa4fe7eba3d19b5347c16ef85b19

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