Malicious PDF — malware analysis report

Static analysis result for SHA-256 47be71642aaf5ed1…

MALICIOUS

PDF

68.9 KB Created: 2021-03-08 12:43:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5db10ed0797f0ddf97e702eb929e99bb SHA-1: 005cbb614e1ca325fd90bede0850bd9d77c269ac SHA-256: 47be71642aaf5ed126644c939c160cd3ce64b8ff542fd8225c3fcf66ef4c4354
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://soxebez.ru/wix?keyword=a+word+that+starts+with+de PDF link annotation
    • http://on-arenas.com/jevasekivipaxop98p.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447877/normal_5fe0071a6bb80.pdfIn PDF document text
    • http://vagoneviwesum.66ghz.com/72771994404.pdfIn PDF document text
    • http://loduxoxoba.22web.org/amchart_balloon_format.pdfIn PDF document text
    • http://gididowofugu.iblogger.org/lojegobasobisobu.pdfIn PDF document text
    • https://cdn.sqhk.co/mivuxakadu/hgDgjEt/lubukudo.pdfIn PDF document text
    • https://cdn.sqhk.co/demejapad/hcMNwJ8/32809730585.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369307/normal_6042063381060.pdfIn PDF document text
    • https://cdn.sqhk.co/govulasem/mggidia/bank_fishing_for_catfish_near_me.pdfIn PDF document text
    • http://blekrossi.ru/87869610650w23y0.pdfIn PDF document text
    • http://gallery-shop.site/8561922145241rqy.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1c514d3f-4aca-4c14-a2cc-94ef866bc6c7.filesusr.com/ugd/860217_49f61b1186094101a4df1ed5d5c3bad2.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/6effb8fc-5c2f-4e11-8ce5-6653692f5a34/how_to_tell_if_my_aquarium_heater_is_working.pdfIn PDF document text
    • https://e02212b7-c8ec-4bf5-ba3e-d68a1de675e0.filesusr.com/ugd/7f1d73_f8e1599f4a2a4fc19859298da5b40eac.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f949f187-32a6-4537-b737-4cf7a2ae609b/survival_medicine_handbook_barnes_and_noble.pdfIn PDF document text
    • https://836291d8-7b77-40db-be8c-3105928c7ef3.filesusr.com/ugd/aae074_d47f1e0ee7844a84a6a4efaca224b60e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/13e156de-e230-4d12-b92c-9b737e77e659/what_is_another_word_for_daystar.pdfIn PDF document text
    • https://cb47f074-0476-4434-b381-5672a365cab8.filesusr.com/ugd/c46c8a_f89f9ac2879e440b9b3b285060b40a3e.pdf?index=trueIn 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_off0000d023.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD023 4964 bytes
SHA-256: 14eb43db87a3a709b0677aea11829fd82b686b1e01e6f1f03e69d8dd01950c9a
font_01_sfnt_off0000e10c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE10C 10564 bytes
SHA-256: 6b1947c8fb73e66166be93aa9fee1fa949baebe60e86131c5ddd8dc8c9bd6eec

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