Malicious PDF — malware analysis report

Static analysis result for SHA-256 191d930145c52561…

MALICIOUS

PDF

85.1 KB Created: 2021-08-06 19:50:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 82caa5f3e0f43261c3da9891241c9983 SHA-1: 0b1431ff49538b0de75f971e726672d4d417e1eb SHA-256: 191d930145c525611cd9ec8b158f472bfcce205add8add2d21bc77579b212289
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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://sukhayurveda.in/userfiles/file/zamesezudodosuro.pdf In PDF document text
    • https://prtl.pl/userfiles/file/simidaponalirabok.pdfIn PDF document text
    • http://on-video.com/movies/movie_data/file/zipisaxizuj.pdfIn PDF document text
    • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072e62b742f5---70419839542.pdfIn PDF document text
    • http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f23572724d5---71366153189.pdfIn PDF document text
    • http://rolmech-strzelno.pl/Upload/file/61374670999.pdfIn PDF document text
    • http://cherryontop.pl/upload/fotki/file/bobaluremi.pdfIn PDF document text
    • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/ce1e125ffb76efb79c5fbe1f4368bb3f/fesedobelereseji.pdfIn PDF document text
    • https://btcauction.vn/hinhanh/file/xozip.pdfIn PDF document text
    • https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/711e833d8283d48e379e975ad827a436/13370388353.pdfIn PDF document text
    • https://emotionalgift.com/ckfinder/userfiles/files/33050093674.pdfIn PDF document text
    • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16080507583db1---69341861291.pdfIn PDF document text
    • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/1b6f996c0e408ff7d7c36e7e7a24a341/33287803523.pdfIn PDF document text
    • http://vitalchurchesinstitute.com/files/file/14733333.pdfIn PDF document text
    • https://anjingliar2.com/contents//files/tududurujuvuwamipinu.pdfIn PDF document text
    • http://clarksville.net/wysiwygfiles/file/wijumefajogizikoripox.pdfIn PDF document text
    • http://al-farh-iq.com/upload/userfiles/file/30974817520.pdfIn PDF document text
    • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094b7d91df69---kafisi.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/62381317486.pdfIn PDF document text
    • https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/0gedcvsi7uj84els5a5t5th2al/retapipaken.pdfIn PDF document text
    • http://niestachow.pl/data/aktualnosci_imgs/file/34419580752.pdfIn PDF document text
    • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/8c4b380fb3d6810fe7cf8acf1e990266/kawovafukusazuvu.pdfIn PDF document text
    • http://hoggard1975.com/clients/a/a4/a43fc1111b7ad4318f8b553feb79a890/File/18086347085.pdfIn PDF document text
    • https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a9b52c4fbea---kirusobuvawaz.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=thk+linear+bearing+catalogue+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_off0000e897.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE897 16628 bytes
SHA-256: 1065d8104890b4d4b30e24629542b15f917f6ca34239a800fa9209fad41ce2b7
font_01_sfnt_off000113e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113E8 11028 bytes
SHA-256: e4a05850983967a5c4cbb861ff077f62ac49526d8f83187d69951657508f8598
font_02_sfnt_off00012d0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D0B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1