Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3003164f4d5eec0…

MALICIOUS

PDF

38.9 KB Created: 2020-11-09 10:02:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: bf9615a4bdb39250aacb905c843987dc SHA-1: 9b073468a204c7f5075e75683edf16b114331fd4 SHA-256: c3003164f4d5eec0f22e28b63bcc4c225105c37becac777e5ff6bd54334e8d1f
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://traffking.ru/123?keyword=lotus+elise+2020+cost In PDF document text
    • https://xosotujusosevo.weebly.com/uploads/1/3/4/3/134377620/lulezabir.pdfIn PDF document text
    • https://bilopoxowug.weebly.com/uploads/1/3/4/4/134439404/pikojopaxube_midepifarep.pdfIn PDF document text
    • https://kiwemedorupa.weebly.com/uploads/1/3/4/4/134446537/18700c56cb4.pdfIn PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/pabijewi.pdfIn PDF document text
    • https://nujusokomofevak.weebly.com/uploads/1/3/4/5/134503883/0122a50357.pdfIn PDF document text
    • https://wilixutisew.weebly.com/uploads/1/3/4/0/134095986/2283901.pdfIn PDF document text
    • https://lavigumujow.weebly.com/uploads/1/3/4/4/134438710/b4ee4.pdfIn PDF document text
    • https://xodetawutal.weebly.com/uploads/1/3/0/7/130774968/4129685.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://nogitolux.files.wordpress.com/2020/11/4785476884.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/66809146329.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/soged.pdfIn PDF document text
    • https://s3.amazonaws.com/jaxesabi/jesakivinenixupu.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B0A 4700 bytes
SHA-256: 2bae5068dbf90967072a1d94087998e168b91e0beab31b25cdd606a9b0d0c9c7
font_01_sfnt_off00006b25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B25 10508 bytes
SHA-256: d9847602ef9618f8315ec68ee843260b1dc5f14eaa761744ea877952fea5ef09