Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b62bde57c8b529f…

MALICIOUS

PDF

87.1 KB Created: 2021-09-17 15:54:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 06b42cf49324bbb7fc07a60b64f16c0f SHA-1: 9758ff0d9fd988cb00f2a9b6172077cc3736dd73 SHA-256: 2b62bde57c8b529f946ee5d421d65648dbe1461ceb5895026ca756f7aad35316
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/n3clhq9gc7qcsh38om45e1ets7/29116128872.pdf In PDF document text
    • https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613939e71dc46---pefazuxeturoxigugosotadu.pdfIn PDF document text
    • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613bf299c8ab8---15239420798.pdfIn PDF document text
    • https://ncsccalgary.com/userfiles/files/tazazugusidusir.pdfIn PDF document text
    • https://aczv.fr/userfiles/file/ranominagawamojadufuz.pdfIn PDF document text
    • http://stardentalcare.org/userfiles/file/32329222828.pdfIn PDF document text
    • http://www.idukkidiocese.org/files/js/ckfinder/userfiles/files/28124777442.pdfIn PDF document text
    • https://natinsel.com/imagenes/file/levujafilo.pdfIn PDF document text
    • https://aljazeerahpetroleum.ae/userfiles/files/kofanofuxorabofuvikalugu.pdfIn PDF document text
    • http://re-media.ru/foto/ck/files/59348019161.pdfIn PDF document text
    • https://oazapiekna.com/zdjecia/fck/file/xudipenomowebonos.pdfIn PDF document text
    • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/73pjaf10p6nfhtvnchch20jqhn/kitafisel.pdfIn PDF document text
    • http://resumesfromabove.com/userfiles/file/83651550559.pdfIn PDF document text
    • https://butyfarm.mm520.net/userfiles/files/11874501967.pdfIn PDF document text
    • http://saipanbooking.com/FileData/ckfinder/files/20210912_1F897D57293D2EFD.pdfIn PDF document text
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161402ffbbc58b---kegefosowiwipopawegozewo.pdfIn PDF document text
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ce21e9d887---40442858107.pdfIn PDF document text
    • https://corpusbg.com/files/fck/file/54349384045.pdfIn PDF document text
    • http://gzcil.com/uploadfile/files/66205526368.pdfIn PDF document text
    • http://inruho.ru/ckfinder/userfiles/files/fijawavetanofusojufozadu.pdfIn PDF document text
    • https://12shio4.com/contents/files/xefabug.pdfIn PDF document text
    • http://xn-----6kcaheblih5ab0a6afqbzoqe.xn--p1ai/ckfinder/userfiles/files/19694950509.pdfIn PDF document text
    • https://safewatersolutions.in/ckfinder/userfiles/files/66125630283.pdfIn PDF document text
    • http://hotelalbicia.com/userfiles/file/14288346739.pdfIn PDF document text
    • https://anmimar.com/royal/userfiles/file/60459360026.pdfIn PDF document text
    • http://ristoranteibucanieri.it/userfiles/files/18761039207.pdfIn PDF document text
    • http://demenagements-remond.fr/userfiles/file/20210902085000.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=download+sonic+adventure+2+androidPDF 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_off0000eb44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB44 10736 bytes
SHA-256: de46bd7c823d98e43f433360893108252b8b761893386654652d6c3c8eb74fd6
font_01_sfnt_off00010431.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10431 19228 bytes
SHA-256: 9a693028b781fa3e33a21be3dfb0259fa0bc4a89b2628a8b611d94e7464d6e0a
font_02_sfnt_off000136b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136B0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1