Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd7fb5e3ff55cf1…

MALICIOUS

PDF

70.9 KB Created: 2021-09-27 07:16:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: ddfa1cfc543cbb4de2bd178aaa3327c8 SHA-1: 8254ec67ee53e866d01ea2fabe8d462cc1ce2d12 SHA-256: 3dd7fb5e3ff55cf1508164e2e78b0b3c611c036e88b0e4890d6e14c5d21e16df
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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 https://wastran.ru/uplcv?utm_term=watch+my+little+pony+season+9+online+free PDF link annotation
    • http://xn--b1akwe.xn--p1ai/userfiles/file/44764064367.pdfIn PDF document text
    • https://ritascreation.com/userfiles/file/40287487263.pdfIn PDF document text
    • https://cowichanmusicfestival.com/userfiles/file/pubewu.pdfIn PDF document text
    • http://pappteam.hu/userfiles/file/14508080215.pdfIn PDF document text
    • http://transportdiverse.com/uploads/files/87276304129.pdfIn PDF document text
    • http://kdwatch.net/upload/files/2021090610005111.pdfIn PDF document text
    • http://fcraregistration.com/UploadedData/file/funijajazafokezemajaz.pdfIn PDF document text
    • http://av-jet.ru/userfiles/file/9688726150.pdfIn PDF document text
    • https://hkpefa.org/editor_upload/file/zusufizisejedefox.pdfIn PDF document text
    • http://amandatour.ru/js/ckfinder/userfiles/files/76370519674.pdfIn PDF document text
    • http://angelcabrera.com/FCKfiles/file/wixuzumu.pdfIn PDF document text
    • https://indobaliart.com/sitefiles/file/pizumapikazosowova.pdfIn PDF document text
    • https://gizaviation.com/uploads/files/dudunemuledakofan.pdfIn PDF document text
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161449fdd5db49---lusexi.pdfIn PDF document text
    • http://www.zywawiara.pl/pliki/92939395277.pdfIn PDF document text
    • http://pharmorgsyn.com/upload/files/70207195398.pdfIn PDF document text
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1613552d02532b---58820033621.pdfIn PDF document text
    • https://supermovi.com/userfiles/files/bogafupikiferupiferebis.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614021d31b3b2---vuwiwi.pdfIn PDF document text
    • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/mnvoh8nmuto5t578ujfc7t7oco/66360824571.pdfIn PDF document text
    • http://candemdientu.com/Images_upload/files/44226651834.pdfIn PDF document text
    • https://kermanrooz.com/img/files/92079025554.pdfIn PDF document text
    • http://hbaoge.com/upload/files/wokusevedazepez.pdfIn PDF document text
    • https://prestinireedcorp.com/userfiles/files/vopobilipifejelo.pdfIn PDF document text
    • http://parfumland.sk/upl/40584450993.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_off0000b140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB140 11020 bytes
SHA-256: c48336ba78b2dd2e37ae333ab23fb029ded9980b075aad54c7bb76eecb018704
font_01_sfnt_off0000cabf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCABF 16272 bytes
SHA-256: 05bdfe7bb9a2ddee88eea00cdbb7a94553206944c1fc5723f88ea4af4be6cd4b
font_02_sfnt_off0000f3fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3FB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1