Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd629c978c0697b…

MALICIOUS

PDF

74.3 KB Created: 2021-09-13 22:04:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 57f36832619fc7808b5783a22ae50901 SHA-1: ed751c2511b02e7ce10b0a502a7dc859edf2b626 SHA-256: 3dd629c978c0697b194241e9fb5661b61bd07968262af7e257c23b5e0306587b
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://friend5190.xyz/js/ckfinder/userfiles/files/lamosimevejuwebaxirazidu.pdf In PDF document text
    • https://agrilaui.com/userfiles/file/65484478474.pdfIn PDF document text
    • http://willettelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lavufezob.pdfIn PDF document text
    • http://osteriadelcampanile.com/userfiles/files/23406180513.pdfIn PDF document text
    • https://chilegastronomia.cl/uploads/userfiles/files/79336638251.pdfIn PDF document text
    • https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/et5jju8v0emn99ohca9p8kt8t1/31329058070.pdfIn PDF document text
    • http://fszhenjia.com/upfolder/e/files/20210905232136.pdfIn PDF document text
    • http://exdebt.bg/userfiles/file/53734242181.pdfIn PDF document text
    • http://elsped.hu/files/file/61108284153.pdfIn PDF document text
    • http://kingsfinancialconsulting.com/userfiles/file/sarogilukizezofeja.pdfIn PDF document text
    • http://tufaghanafc.com/js/ckfinder/userfiles/files/xuvugakez.pdfIn PDF document text
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613a921d3185c---rilim.pdfIn PDF document text
    • http://www.salac.cz/ckfinder/userfiles/files/wivudomix.pdfIn PDF document text
    • http://ansing.nl/userfiles/file/lozaboretulexivis.pdfIn PDF document text
    • https://civilkontroll.hu/uploads/file/77817093524.pdfIn PDF document text
    • https://nyig.com/files/file/detox.pdfIn PDF document text
    • https://avukatwebsitesi.trakyasoft.com/upload/files/65549905734.pdfIn PDF document text
    • http://uitvaartverzorgingsindex.nl/images/uploads/34637446452.pdfIn PDF document text
    • http://gemcom.org/userfiles/file/rurarajefimosutit.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613b1d24d4c59---kixonukulonij.pdfIn PDF document text
    • http://seatraderhk.com/userfiles/lowifivukoxax.pdfIn PDF document text
    • http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/3306394150.pdfIn PDF document text
    • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/16139a178709b1---11588833954.pdfIn PDF document text
    • http://cpghollywood.com/userfiles/files/92051457248.pdfIn PDF document text
    • http://www.roosprommenschenckelfoundation.nl/ckfinder/files/files/mategum.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=top+10+android+games+of+all+timePDF 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_off0000bdee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDEE 17248 bytes
SHA-256: 388a6f096ac8d56e1db27d373e7440701a05a2d86b7a1ada58f263dc53c49ed7
font_01_sfnt_off0000ea9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA9E 10976 bytes
SHA-256: d81ca3c8b099d63a73c548de212c4cff992368bec70fda916dbee0086a16c7e4
font_02_sfnt_off000103e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103E3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1