Malicious PDF — malware analysis report

Static analysis result for SHA-256 17f18e40a29a06dd…

MALICIOUS

PDF

99.7 KB Created: 2021-07-02 21:50:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: f206b3b1dde4f199bc92ddd285b30dab SHA-1: d1699c67db6bc1eac379b062f1e1e3eb1a01d2dd SHA-256: 17f18e40a29a06dd2e3e46ab3c0aa6c51b815feff47ebdce89c2de6f96b7b487
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many of which point to websites that appear to be compromised CMS uploads. The ML classifier and ClamAV detection strongly indicate malicious intent. The primary function appears to be directing users to potentially malicious or compromised sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

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://ranaghatpchsschool.org/userfiles/file/ledesiguxuwuvoxuzodadiku.pdf In PDF document text
    • http://designklasse.de/ckfinder/userfiles/files/11714673880.pdfIn PDF document text
    • http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16078355292ad7---lodamukunijepalewozop.pdfIn PDF document text
    • http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc5df02074---ruvepokinarawa.pdfIn PDF document text
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160830c4593381---21608811169.pdfIn PDF document text
    • https://liniagdanskzydowo.pl/files/11168458927.pdfIn PDF document text
    • https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/v9a1as182gl69fi4c6t791ertb/tudedixixivisasitubo.pdfIn PDF document text
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/4eccd1d198590aedb4444c85761f09b9/72113161312.pdfIn PDF document text
    • https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/1347fbb123c40c92b91f0ca4cafea48b/pogorerudobonodufipagu.pdfIn PDF document text
    • http://moristas.com/userfiles/files/59231830614.pdfIn PDF document text
    • https://unosms.us/userfiles/file/rupobelowukek.pdfIn PDF document text
    • https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/3cm9bs71ilv8ksmjium501o9go/totapase.pdfIn PDF document text
    • https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/2mhafmm8pr47dhqvc8ubhai6h1/40451063295.pdfIn PDF document text
    • http://tunglamgarden.com/images/fck/file/kodajez.pdfIn PDF document text
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ed45672df14c198137fd26617b5d813e/xatolefafafux.pdfIn PDF document text
    • http://boathousebrokerage.com/userfiles/file/febugokedufomalopoku.pdfIn PDF document text
    • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160988a5cf18a6---takubeladabipomutifux.pdfIn PDF document text
    • http://www.findvoters.com/userfiles/file/86663626875.pdfIn PDF document text
    • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160aa2fa62070d---80694352411.pdfIn PDF document text
    • https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/7cbcq75f60tduu0qv5c9qmdg67/dupewokosovo.pdfIn PDF document text
    • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/b9217aba644769f276b78264bb3662f1/xizilurutijamasokowuja.pdfIn PDF document text
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/2237128de0e9ac3aa2b82ce32cbf81d9/nufiwudowaxirepalegol.pdfIn PDF document text
    • http://premium-h.info/files/files/seponagogunonaguduvaw.pdfIn PDF document text
    • http://www.greenbriarpropmgmt.com/wp-content/plugins/super-forms/uploads/php/files/a04b44b4dc9314ad674dd584aa6abdf7/jizobexobomabemeg.pdfIn PDF document text
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f49ae1f772---72592268404.pdfIn PDF document text
    • https://holocaustresearch.pl/nowy/photo/file/57639925146.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=the+abc+of+reloading+9th+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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000121ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121FF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00013a16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A16 11000 bytes
SHA-256: cecba1971e5611d4c4e0ca838c9cf7fa1216dec4ad450888dfa610acb34dd80c
font_02_sfnt_off00015322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15322 17988 bytes
SHA-256: 1e78adf64017368d4351b8746d8bb31fb1dfddcdbca60b323f02acd2852f178f