Malicious PDF — malware analysis report

Static analysis result for SHA-256 70c5bb1170f4c94c…

MALICIOUS

PDF

40.1 KB Created: 2020-11-07 20:12:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: aac997273435a8344bbc7d36657e8558 SHA-1: 26c05dda78c92f689f5f33f2e150f6c942ac0f59 SHA-256: 70c5bb1170f4c94c465856cbc89c681e9701763534773aba684313e5fecf66b1
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://traffset.ru/aws?keyword=restore+manchester+nh+hours PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366371/normal_5f872e75dd17b.pdfIn PDF document text
    • https://sifizebutu.weebly.com/uploads/1/3/0/8/130814914/17cd4038253e8.pdfIn PDF document text
    • https://kawigijutugin.weebly.com/uploads/1/3/4/3/134351661/mizogepuwivexejijak.pdfIn PDF document text
    • https://weratirotiset.weebly.com/uploads/1/3/4/3/134322017/fokutozoxiroforu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446512/normal_5f9e7eacc5aa8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://xekukozeko.files.wordpress.com/2020/11/datawelatexako.pdfIn PDF document text
    • https://jegejiv.files.wordpress.com/2020/11/neal_medical_pharmacology_at_a_glance.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04e612c4-1cad-4898-98af-f14def365c63/32967368045.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57e3c820-2751-4c65-b29d-0297ee4b7902/43285189545.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef53ba72-81d9-448e-b817-9965bf24d6ff/piute_middle_school_rating.pdfIn PDF document text
    • https://direpupiwabe248790905.files.wordpress.com/2020/11/jaluzuredod.pdfIn PDF document text
    • https://dogisur.files.wordpress.com/2020/11/19303869953.pdfIn PDF document text
    • https://dowuwiridewe.files.wordpress.com/2020/11/sugoboralijub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75a2c906-e10b-4e98-9865-385aed22a7fa/buxetexedaf.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_off00005b15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B15 5016 bytes
SHA-256: 8a2a52863706606e0e72f66bf7310e9d4bb4ccbedcbc1ec0f8df98a845a52ea7
font_01_sfnt_off00006bf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF4 11964 bytes
SHA-256: baac7a30e021020e46be57794ffcce4e7d12574c7c1e10da7e3b233f5707cc75