Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddc073f3357d85f…

MALICIOUS

PDF

69.9 KB Created: 2021-11-26 21:49:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: ee8ea8fbe590f36a1a2982ff0075a76e SHA-1: 16e7ebb7263f708963baaf90e7b46b9f4a83808e SHA-256: 3ddc073f3357d85fec0df6990d4a7445e993031f47412b9552ff001a497f0d47
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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://queure.ru/uplcv?utm_term=ball+canning+book+pdf PDF link annotation
    • http://www.premiumimport.nl/ckfinder/userfiles/files/8347981280.pdfIn PDF document text
    • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/161752caa91ba1---13280143303.pdfIn PDF document text
    • https://8cj2aja7-8mxb.com/contents/files/64342232428.pdfIn PDF document text
    • http://jualumnitoronto.com/editor/uploadfiles/69781036864.pdfIn PDF document text
    • http://samurairamenbar.com/uploads/files/10910185425.pdfIn PDF document text
    • http://leaders-adv.net/userfiles/file/92129540629.pdfIn PDF document text
    • http://starysklep.itmega.pl/photo/file/mimapope.pdfIn PDF document text
    • https://irastuff.com/admin/ckfinder/uploads/files/15458741319.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161708bc34857a---bopine.pdfIn PDF document text
    • http://chistogood.ru/admin/ckfinder/userfiles/files/dibowasotoma.pdfIn PDF document text
    • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/862ec0e999c309db8f7915297686f4f6/99472551186.pdfIn PDF document text
    • http://gzmzwl.com/Uploadfiles/files/nisoved.pdfIn PDF document text
    • http://americasbestwingsbeltsville.com/uploads/files/kanoxibuvajalogeveguba.pdfIn PDF document text
    • http://www.eatvirukai.lt/uploads/files/xulekonadagitu.pdfIn PDF document text
    • http://monticellotownship.org/userfiles/file/3512648221.pdfIn PDF document text
    • https://adikmanis.com/contents/files/86558523423.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1618207c9308b4---jabewizenez.pdfIn PDF document text
    • http://tw-jia.com/uploads/files/202110110749068705.pdfIn PDF document text
    • http://kurumakaitori-one.com/js/upload/files/fesulebewarozujiso.pdfIn PDF document text
    • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/16192b450d7720---86630038274.pdfIn PDF document text
    • http://spbmedaks.ru/sites/default/files/uploads/doresofututeforo.pdfIn PDF document text
    • https://unchiulmihai.ro/files/fckeditor/file/fadidibodonure.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_off0000b1c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1C6 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000c86a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC86A 10580 bytes
SHA-256: 7047282678313943fae7d125856ef2ccee8115662bc64bd797a846bdd2e5f953
font_02_sfnt_off0000e035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE035 16352 bytes
SHA-256: b72530575bb8709bba3632c40437d40112163491e5f2cad555295a37432f7373