Malicious PDF — malware analysis report

Static analysis result for SHA-256 14fcb992ead2343a…

MALICIOUS

PDF

87.0 KB Created: 2021-09-17 21:50:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: e11f6d3bd6fa1db7b4bc667b3b7160b6 SHA-1: 506b31da311512665e26f8090896caf9d81577b2 SHA-256: 14fcb992ead2343af61e5cabace7a82f4ebe2464c21d5d64f4388ee73c4f3b57
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are hosted on compromised or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of a ClamAV detection for 'Pdf.Phishing.Trojan' and ML classifier flagging further supports malicious intent. While no scripts were explicitly extracted, the PDF structure and URL patterns are indicative of a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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 https://smidgel.ru/uplcv?utm_term=justice+league+movie+free+download PDF link annotation
    • http://sbsedupatti.com/sbsedupatti/userfiles/file/xasin.pdfIn PDF document text
    • https://beaszemin.com/files/32346875985.pdfIn PDF document text
    • http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613f60eb5520d---fowud.pdfIn PDF document text
    • https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/685c1e4241bb1ee6f8f72560485850f5/28387340899.pdfIn PDF document text
    • http://eminenceinc.com/userfiles/file/87133870186.pdfIn PDF document text
    • http://beastyenergy.com/userfiles/file/benojuzodapovabefa.pdfIn PDF document text
    • https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/wetotakejufexaxuvab.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/161303f019552b---betabedoxafafezige.pdfIn PDF document text
    • http://tano-cable.com/d/files/tepevakimogu.pdfIn PDF document text
    • http://sarkar.ie/userfiles/file/53749577505.pdfIn PDF document text
    • http://ville-dammarie.com/ckfinder/userfiles/files/50371800272.pdfIn PDF document text
    • https://dnsbp.com/all4help/fckuserfiles/file/zudiwowijepowixo.pdfIn PDF document text
    • http://nikolalepojevic5.com/multimedia/file/77965957718.pdfIn PDF document text
    • http://tscyw.net/userfiles/file/20210914152225_wrc8kr.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139f211210e4---98938473942.pdfIn PDF document text
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/161435081dd1f8---48203408012.pdfIn PDF document text
    • http://magnumprint.ru/upload/files/dexumulewivebegewiwava.pdfIn PDF document text
    • https://www.theknowledgeonline.com/files/lib/ckfinder/userfiles/files/90693659186.pdfIn PDF document text
    • https://gulfb2b.com/userfiles/file/xigikosabanubupaleli.pdfIn PDF document text
    • http://ohdiabo.net/images/ckeditor/files/bavilodugukavaji.pdfIn PDF document text
    • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141a5652ff4f---10364533239.pdfIn PDF document text
    • https://halead.com/uploadfile/1630713013.pdfIn PDF document text
    • https://ambient-interier.cz/files/files/5727285396.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_off0000ec50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC50 11064 bytes
SHA-256: 9217831deeaaf683a76fff951abd85e4be78725fd6f2b4180867695eefbf22f2
font_01_sfnt_off000105fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105FE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011e10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E10 18776 bytes
SHA-256: 94b7714c6d25c207777382d1331887a4479afe9626eb7b26dc1bc2d39b08ecbd

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