Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c6cc0099f041f9c…

MALICIOUS

PDF

84.7 KB Created: 2021-07-03 18:46:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: 36ccc7e2b893d0925df6c0ac6be9f8e6 SHA-1: d710f1a68f480248807ea9c5f2e37ca881e06460 SHA-256: 7c6cc0099f041f9cfa0c4398efacab4b17d5e6df1479476a1ac5668011ad8876
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' lure further supports a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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 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 https://coretry.ru/uplcv?utm_term=way+to+success+10th+std+english+guide+download PDF link annotation
    • https://dodatnagarancija.com/userfiles/file/45517389351.pdfIn PDF document text
    • https://aronabritcan.com/userfiles/file/56521036646.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d276235e09---10970413613.pdfIn PDF document text
    • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607cbc3784776---gusoxogo.pdfIn PDF document text
    • http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160adc77896b8e---lemedilipavijurovodure.pdfIn PDF document text
    • http://sllight.ru/design/img/upload/file/3826822964.pdfIn PDF document text
    • http://i-harmonics.com/upload/files/1442377523.pdfIn PDF document text
    • https://poolpoint.be/uploads/file/sitotudapitabodizo.pdfIn PDF document text
    • https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/dlp1llcknpdg9v5dc5jok0qgrj/nupiluxamapi.pdfIn PDF document text
    • http://pngroup.pl/ckfinder/userfiles/files/8374173809.pdfIn PDF document text
    • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/3123e652c107cda6b02f22aad5459b71/mepimobasawumen.pdfIn PDF document text
    • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a40ff90d8a9---kojepozivotuxalefu.pdfIn PDF document text
    • https://carparts-fixture.com/file/file/rifimusasuneragapigigonet.pdfIn PDF document text
    • http://hoteldazegliotorino.com/userfiles/files/21890036391.pdfIn PDF document text
    • https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b4050f85243---29317887988.pdfIn PDF document text
    • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/230944fe3b625d261ef17c137062273d/17007877783.pdfIn PDF document text
    • http://relatives-united.com/clients/75139/File/wesuwaguxezexavu.pdfIn PDF document text
    • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/149e4b32cdbb2a177d5d9bdf3dcb3d15/nuzadexo.pdfIn PDF document text
    • http://chinhlytailieuluutru.com/media/ftp/file/dotawididosutagirejez.pdfIn PDF document text
    • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3dcf57916---70464499051.pdfIn PDF document text
    • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbd50c18d0d---zobiduxojuzurun.pdfIn PDF document text
    • https://harkakotony.hu/UserFiles/file/32204710524.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

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_off0000e0fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0FD 18820 bytes
SHA-256: 0cdb22c861fc3d2523de36e5d189783afdeae3f8b93649cfb8e6d375046ee96a
font_01_sfnt_off0001121e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1121E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012a35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A35 11016 bytes
SHA-256: b4a6fb04cee732d62c1cf91f68d8c759be5b86abbfc3536ac38c75dfcd30edd8

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