Malicious PDF — malware analysis report

Static analysis result for SHA-256 af211abc19466fd3…

MALICIOUS

PDF

75.4 KB Created: 2022-04-27 09:56:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 2aa50d90c9516549e8290fdeff10f9e8 SHA-1: ef10533ad9b9d0e88b45b96dcb7503e0e364c27c SHA-256: af211abc19466fd3243f815d998bc52ea9fa0c347990597f21d3a6359fe0f051
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 https://loheb.co.za/YmrXLWy8?keyword=swingline%20heavy%20duty%20stapler%20stock%20#%2039005 PDF link annotation
    • https://bixemasabomevis.weebly.com/uploads/1/3/4/5/134517571/1869206.pdfIn PDF document text
    • http://www.toptehnik.si/images/25068437126.pdfIn PDF document text
    • http://nhactheducthammy.com/upload/files/gadoxuzefaderapopilaxifu.pdfIn PDF document text
    • https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/162473b09b81d6---70613978146.pdfIn PDF document text
    • https://dexulivixuwe.weebly.com/uploads/1/3/0/7/130739852/tuvonobopa.pdfIn PDF document text
    • https://pujeradix.weebly.com/uploads/1/3/2/6/132695809/tizowasiwisijok_maxejuxuluwola.pdfIn PDF document text
    • https://simebofes.weebly.com/uploads/1/3/1/4/131438459/5399752.pdfIn PDF document text
    • http://postelezmasivu-brno.com/ckfinder/userfiles/files/75705189625.pdfIn PDF document text
    • http://bowlingkillers.com/imgdb/files/20503170078.pdfIn PDF document text
    • https://jojobejuw.weebly.com/uploads/1/3/2/8/132815094/fosem.pdfIn PDF document text
    • https://tawixepew.weebly.com/uploads/1/3/0/7/130739069/mobasamosetapexazewo.pdfIn PDF document text
    • https://plastr.cz/files/files/81504830822.pdfIn PDF document text
    • https://lixazasowab.weebly.com/uploads/1/3/4/5/134588429/kakugujomer.pdfIn PDF document text
    • https://przewodnikjeleniagora.pl/photos/pages/files/96519362679.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_off0000bfb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFB1 11328 bytes
SHA-256: 80b85220b6e38c02e98b1ed765e836cfdbfbab35ee3c42f43632bbed82a72747
font_01_sfnt_off0000da1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA1E 17364 bytes
SHA-256: 722355b25a352eb1eab4f81908d683a895f81ff0bce900140c4731952231c3f7
font_02_sfnt_off00010729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10729 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1