Malicious PDF — malware analysis report

Static analysis result for SHA-256 601e297b9579cc91…

MALICIOUS

PDF

49.7 KB Created: 2020-10-10 16:33:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: bc433cd056bc3415b9578ad03d45f9d6 SHA-1: 3163d7e9989d98deba70394a955090a99a62af65 SHA-256: 601e297b9579cc91c6120e1ac1c20978a2b056ebb91402d00a6a5d7cdbadfad3
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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://ttraff.club/pify?keyword=poisonwood+bible+sparknotes+book+5 In PDF document text
    • https://site-1041486.mozfiles.com/files/1041486/43770340416.pdfIn PDF document text
    • https://site-1036699.mozfiles.com/files/1036699/18795594729.pdfIn PDF document text
    • https://site-1039350.mozfiles.com/files/1039350/15440435489.pdfIn PDF document text
    • https://site-1038844.mozfiles.com/files/1038844/18682165942.pdfIn PDF document text
    • https://site-1036938.mozfiles.com/files/1036938/fepidikigevasugivoga.pdfIn PDF document text
    • https://site-1048205.mozfiles.com/files/1048205/fufugupolevekefed.pdfIn PDF document text
    • https://site-1037840.mozfiles.com/files/1037840/1537711964.pdfIn PDF document text
    • https://site-1038792.mozfiles.com/files/1038792/nomigunijixorem.pdfIn PDF document text
    • https://site-1039503.mozfiles.com/files/1039503/4570106762.pdfIn PDF document text
    • https://site-1038940.mozfiles.com/files/1038940/85983858057.pdfIn PDF document text
    • http://jinofifup.designsbydebllc.com/uploads/1/3/0/8/130814933/4137345.pdfIn PDF document text
    • http://files.thebagelers.com/uploads/1/3/1/6/131637194/gatuja-dajujomejog-nepad.pdfIn PDF document text
    • https://site-1036851.mozfiles.com/files/1036851/20791189082.pdfIn PDF document text
    • https://site-1042981.mozfiles.com/files/1042981/18571630616.pdfIn PDF document text
    • https://site-1043705.mozfiles.com/files/1043705/wemelekefigin.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000084cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84CB 5376 bytes
SHA-256: 12d8bf28d518dfb573e86bd448c11854a48bdf94e85024e427a302d9f2176749
font_01_sfnt_off0000972a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x972A 9992 bytes
SHA-256: 8c126e788b33c4f959e86e1b2312ecc60c37b09a9df39dfc863da504eeb08957