Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b61b92cbf2fd4a7…

MALICIOUS

PDF

192.9 KB Created: 2021-08-03 01:41:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 14ec0f88528323320f93def249265d7d SHA-1: 5da3ffb57dfdf47c41fdb4acbde95d7388506f8d SHA-256: 2b61b92cbf2fd4a725362b3a5ce29c4c98282d03a0fba9a51a490b4d990a0be6
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9655

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://tms-technology.com/ckfinder/userfiles/files/jumusowesalobowojaregob.pdf In PDF document text
    • http://le383.com/uploads/files/10750610771.pdfIn PDF document text
    • http://thienlongadv.com/upload/files/keniligowivikina.pdfIn PDF document text
    • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16098bf99bcde2---gazepu.pdfIn PDF document text
    • http://ort168.com/upload//ckeditor/files/41236414090.pdfIn PDF document text
    • https://apotekatia.ba/fajlovi/xiruz.pdfIn PDF document text
    • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dd5f9411a6---64449630711.pdfIn PDF document text
    • https://hansenlight.com/UploadFile/files/78637224202.pdfIn PDF document text
    • http://coimbra.hu/uploads/ckfinder/userfiles/files/88290907914.pdfIn PDF document text
    • http://dirpub.org/editor/ckfinder/userfiles/files/78384359641.pdfIn PDF document text
    • http://ahxxzx.com/userfiles/202104/file/bokexuv.pdfIn PDF document text
    • http://gesundezellen.de/neu/userfiles/file/nafozisokarigubufolimini.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a67972e2192---24536451614.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/16095c1449470e---pezufadalupudosidonaji.pdfIn PDF document text
    • https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb21d6d12d---fimisotigunogu.pdfIn PDF document text
    • http://rwdwebwebdesign.com/img-aim/files/dudiwojabuvametod.pdfIn PDF document text
    • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608ad3e929866---5662506653.pdfIn PDF document text
    • https://namratalakhotia.com/userfiles/files/28084408072.pdfIn PDF document text
    • https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/bc3f9135f49650c44df27df76ed0cd92/fegadirapidubobibuza.pdfIn PDF document text
    • http://theonejsc.com/userfiles/file/lorirudux.pdfIn PDF document text
    • http://nitexprofi.cz/userfiles/file/56556827037.pdfIn PDF document text
    • https://gmnavarra.es/ckeditor/files/71905037651.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=why+is+only+one+of+my+indy+fuel+earbuds+workingPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002860f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2860F 19272 bytes
SHA-256: 6ca5a70b936b6c73961f6301c2e89a05893ccf58b6697415820e480a10c1ca3d
font_01_sfnt_off0002b94f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B94F 11228 bytes
SHA-256: 344fe2256e775b2872b992f7ba307f17a67b59bc176592a2d811779d140938e9
font_02_sfnt_off0002d340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D340 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off0002eb4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB4D 1756 bytes
SHA-256: ffabc5e21d38c733153d102a817d2d551d0b9e27395d558068ca9bc08027df99