Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd09d0ec03b2be4a…

MALICIOUS

PDF

90.8 KB Created: 2021-08-07 04:06:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: abc3bac055bfdaff502a050fd939ba98 SHA-1: 2035fa72f9311a262bd63795a7ad3e7744c087e0 SHA-256: bd09d0ec03b2be4a7af5f4b6043f77cae212e02b105e959d19e1dd9c9b99ac1e
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document's structure and URL patterns are consistent with phishing or SEO-based malicious redirection campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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://huntic.ru/uplcv?utm_term=how+to+use+focusrite+scarlett+2i2+with+logic PDF link annotation
    • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/duqpgh0g5bqsbm5867hh5iqku3/bizib.pdfIn PDF document text
    • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160758115d2887---77246563713.pdfIn PDF document text
    • http://elma-itc.ru/!upload/files/rufuseruxepubuk.pdfIn PDF document text
    • http://smartpaintingplus.com/userfiles/files/lorotuzawetovosabinav.pdfIn PDF document text
    • http://dahchen.tw/userfiles/file/tiwozudaz.pdfIn PDF document text
    • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d618c9d4dc0---molalevivuwatolatanema.pdfIn PDF document text
    • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160b1b8bd33737---73619002724.pdfIn PDF document text
    • http://ankamet.com/userfiles/file/14454792343.pdfIn PDF document text
    • https://leganordavigliana.it/uploads/file/xifikugaxurar.pdfIn PDF document text
    • http://wchs65.org/clients/b/bb/bb65574a37642f7fe3135935df861e67/File/12603990902.pdfIn PDF document text
    • http://aqbnb.com/uploadfile/file/80471095135.pdfIn PDF document text
    • http://maslag.eu/userfiles/file/loruferin.pdfIn PDF document text
    • https://www.bakirkoytemsilcisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084d83543b71---9337369270.pdfIn PDF document text
    • https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/160781512236af---38836527693.pdfIn PDF document text
    • http://littlepearlbooks.in/data/eimages/file/kiwaxe.pdfIn PDF document text
    • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/v7fugtj9ahdgrfi7ebbkbo1of8/70772579476.pdfIn PDF document text
    • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//82429871876.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607afe99dcd45---vizovovolixejofumov.pdfIn PDF document text
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608624d46fc99---vugefaneg.pdfIn PDF document text
    • http://hankyunget.net/userData/board/file/88682635342.pdfIn PDF document text
    • http://csaladiegyteruautok.hu/userfiles/files/jezerokofemonajofedukibun.pdfIn PDF document text
    • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160b23e320cf7c---javerasipibemegezawulaka.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/8bf77b71016afa2ef13b520d0ba43d33/29921275850.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_off0000fd82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD82 17348 bytes
SHA-256: 1a1ae1dcc621993eb1ecc592e4a9714b41f2cfa2520cc8f2524e96e0cabc933b
font_01_sfnt_off00012b16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B16 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001432d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1432D 10808 bytes
SHA-256: 3f1ee2a17151c64b6a7313baeaf84fb2fce7cb06f3b7a711d3bb0d687b68e7a6

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