Malicious PDF — malware analysis report

Static analysis result for SHA-256 464f953c379e293e…

MALICIOUS

PDF

67.7 KB Created: 2021-03-05 22:31:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e9815658ffec56b1f51f5da59b5d5e4f SHA-1: d4f5d062f5e22a281ad82585d636fa0a05314a5f SHA-256: 464f953c379e293e395a2226bbb923e3a16d3ad242634ba0a560e1f0989d52ca
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wix?keyword=kodak+duaflex+iii+value PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4371246/normal_5feb7a7ecb2d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450259/normal_60265420bbc4a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469626/normal_60357396556dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449998/normal_60341a027620a.pdfIn PDF document text
    • http://gadetebes.sportsontheweb.net/why_wont_my_brother_printer_print_in_color.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477630/normal_60017d7030f9b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501975/normal_5fe15d7d68e5c.pdfIn PDF document text
    • http://bosemefawixuwov.mypressonline.com/vumevugis.pdfIn PDF document text
    • http://wivevemeb.scienceontheweb.net/mass_of_spirit_and_grace_manalo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407085/normal_603ea14befc99.pdfIn PDF document text
    • http://mumijivamivaxij.medianewsonline.com/8860387907.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vilepobafomunow.atwebpages.com/what_is_the_last_keeper_of_the_lost_cities_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6587190-367c-41ca-ae87-821ff41eca17/para_que_sirve_la_vitamina_d_y_el_magnesio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6663d570-c03d-4062-9cd6-cbb4956c59b7/zogumoximof.pdfIn PDF document text
    • http://medexode.atwebpages.com/83209573825.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/154d2ec0-2454-4bd1-aa4c-1315fae3ca85/959835196.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/028db85d-094d-47ef-b6c5-323500b832fe/vaserumoguwaxebef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f76e043-69bc-4eec-8ac4-335070e01898/vanikasejurafuzi.pdfIn PDF document text
    • http://rukosivujuxu.atwebpages.com/halleys_bible_handbook_henry_h_halley_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3aa7d0e2-4256-4268-91fc-a35cf1a47e2c/how_to_adjust_ultegra_di2_front_derailleur.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_off0000cd84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD84 4788 bytes
SHA-256: 2d3d642753e2e39b4850be9f5cbdf62d6d826f8a5e10d30f07c9f06b9babfa1a
font_01_sfnt_off0000ddef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDEF 10368 bytes
SHA-256: 0d099733d1aff92961f32f98b90727240b7bbf03393af0b74eef5900d2053aed

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