Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af8ccc04bf1f311…

MALICIOUS

PDF

81.8 KB Created: 2020-12-04 07:43:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: 299daa48c07ae2d524b6fa54ed9bf377 SHA-1: 1af4beb1ee1c7b1b32097b4626c8e02426c7ef7b SHA-256: 4af8ccc04bf1f311c6db8eef4821e71be75bddd0dcd7b4b88b3f96dc47cf7b31
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/wb?keyword=wow%20arcane%20mage%20leveling%20guide In PDF document text
    • https://pebetojakudasud.weebly.com/uploads/1/3/4/8/134879391/fc81f74.pdfIn PDF document text
    • https://vabepazepa.weebly.com/uploads/1/3/4/5/134596671/b7d0c7a.pdfIn PDF document text
    • https://tijirurilulade.weebly.com/uploads/1/3/4/3/134312421/3217101.pdfIn PDF document text
    • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/pagabasijepulesetiga.pdfIn PDF document text
    • https://sozeberanula.weebly.com/uploads/1/3/4/7/134774269/9575757.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/c7e45224-755d-49cd-9799-33b96cb098c1/64507664747.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2a3829955c744b546b600/t/5fc4416318e72e5fdb5f3e30/1606697316548/84306786821.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f730c8a-9e1d-48a6-b09b-3e41071e601d/wokowosogidosebiboso.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc115bd5e8e827d428ee316/t/5fc1c8f664571256547e8c17/1606535415041/sofodokuvavopozirovijo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3b48c1a-4dc3-457a-b83b-38f4e729cca2/art_and_the_bible_francis_schaeffer.pdfIn PDF document text
    • https://s3.amazonaws.com/gonima/calorimetry_solved_problems.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://scripts.sil.org/OFLIn 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_off0000dea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA1 5048 bytes
SHA-256: b16a27578511f05e4c30b9faae337c4768592cfd480790ee193af39efcdd71e0
font_01_sfnt_off0000efbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFBE 11052 bytes
SHA-256: 2c275bbfda4ae51bd68bb48efbb4c100319ed698a699d1291ae07f2f5729a4f7
font_02_sfnt_off00011581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11581 16400 bytes
SHA-256: b4fb25211f7873671f67ca644befa4263b72588ac2def8d92ccee27433b89c76
font_03_sfnt_off00012b8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B8D 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3