Malicious PDF — malware analysis report

Static analysis result for SHA-256 5369e6393507ebb8…

MALICIOUS

PDF

36.8 KB Created: 2020-10-07 10:56:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f0004996701561923534ddbd28bc28b1 SHA-1: 9d181243ff4447f5ea9291c17d6b7ffed1e78b79 SHA-256: 5369e6393507ebb83b5e4c38336f734888e1997dd3e559f00fa412295747ec78
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://gettraff.ru/pify?keyword=macon+georgia+newspaper+archives In PDF document text
    • https://site-1043884.mozfiles.com/files/1043884/10847902584.pdfIn PDF document text
    • https://site-1043091.mozfiles.com/files/1043091/64299647278.pdfIn PDF document text
    • https://site-1039280.mozfiles.com/files/1039280/616577591.pdfIn PDF document text
    • https://site-1036991.mozfiles.com/files/1036991/13554845066.pdfIn PDF document text
    • http://files.andrewdimicelli.com/uploads/1/3/1/4/131411596/5555895.pdfIn PDF document text
    • http://berov.oakhillcontractorsllc.net/uploads/1/3/0/8/130873995/lunojumu.pdfIn PDF document text
    • http://files.luxuryjourneytravel.com/uploads/1/3/1/6/131606087/pigesopa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1845/2120/files/sunbeam_heated_mattress_pad_beeping.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0372/9304/files/jds_labs_atom_vs_element.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0487/0963/2150/files/pokemon_blaze_black_2_item_locations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/sevorulukan.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_off000052d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52D2 5320 bytes
SHA-256: d1c3f1fe35a0c0f48a774d05cd8f44b8e8bf37f0044408eccb2fc4a4b884e5f2
font_01_sfnt_off0000650c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x650C 9864 bytes
SHA-256: 937660ab5706cc72e5fc0f26cac48bb0044d2a5d3aab8278569a22aec59fb5f0