Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5e132d4446ae0cb…

MALICIOUS

PDF

42.2 KB Created: 2020-10-04 14:22:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d8152f06c379dc0515a2c7ee46784d8b SHA-1: e0b7a3523befa7094d8d78891d8f30ec472041c8 SHA-256: e5e132d4446ae0cbe2ea28d2db399b3f24a865a53a5f3b7827bac18b505c7e75
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://ggtraff.ru/pify?keyword=trey+songz+age+instagram In PDF document text
    • http://files.jazzrecordartcollective.com/uploads/1/3/1/4/131408328/90ecde437eaaf1c.pdfIn PDF document text
    • http://furageta.seasidecharter.org/uploads/1/3/0/8/130874691/d5e20.pdfIn PDF document text
    • http://files.mcmjanitorial.com/uploads/1/3/1/4/131406356/5b2cce2e6e7ba.pdfIn PDF document text
    • http://rudewif.womensoutdoorweekends.co.uk/uploads/1/3/0/8/130813055/7d28d44d8e.pdfIn PDF document text
    • http://gokovo.rosevillacookieco.com/uploads/1/3/1/1/131164250/5ec90.pdfIn PDF document text
    • https://site-1036781.mozfiles.com/files/1036781/lujakutipuselazafopuru.pdfIn PDF document text
    • https://site-1036823.mozfiles.com/files/1036823/81238745059.pdfIn PDF document text
    • https://site-1038717.mozfiles.com/files/1038717/42261311058.pdfIn PDF document text
    • https://site-1036633.mozfiles.com/files/1036633/pukabosabudumege.pdfIn PDF document text
    • https://site-1039577.mozfiles.com/files/1039577/sozekobexepav.pdfIn PDF document text
    • https://site-1038627.mozfiles.com/files/1038627/kemafifelarizewi.pdfIn PDF document text
    • https://site-1037840.mozfiles.com/files/1037840/gagodutagupebowizubok.pdfIn PDF document text
    • https://site-1039188.mozfiles.com/files/1039188/tiziralonaduwapur.pdfIn PDF document text
    • https://site-1036783.mozfiles.com/files/1036783/gorozozakodof.pdfIn PDF document text
    • https://site-1036965.mozfiles.com/files/1036965/56955490699.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f58cd43-fb39-43d9-874e-70e8db8b286f/12815022898.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7732039c-7be8-4850-8715-ad9e9fa27d72/potijetumafifutijekisuxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96feb838-aa1d-4260-823f-68dc26184779/89339425423.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_off0000679f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x679F 5072 bytes
SHA-256: 5393c4b8dc604465a05e8b4acbb96257d8483438f6f60c66982b3daabed1a574
font_01_sfnt_off000078e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E1 10236 bytes
SHA-256: 234c8823e15684e319cccd78f43c75b37233e230e28fb702c49fbc65407f387c

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