Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e6c9343b39ab532…

MALICIOUS

PDF

72.0 KB Created: 2021-02-14 03:48:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 9c7cd88439e6785d40935e3de1c9bfe1 SHA-1: 033ce74d04a81021efb98bef17c75213615d82ab SHA-256: 8e6c9343b39ab532800056f41d7a8a918bc60948ac3e4373c3eeba041c522216
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/123?utm_term=girl+scout+daisy+uniform+vest PDF link annotation
    • https://sulomotosepotu.weebly.com/uploads/1/3/4/7/134744650/6453769.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409244/normal_5fd06b3b58457.pdfIn PDF document text
    • https://fibimijisu.weebly.com/uploads/1/3/4/4/134461798/b78cb.pdfIn PDF document text
    • http://prequester.online/zombie_vs_fruit_plants_2vnx0w.pdfIn PDF document text
    • https://cdn.sqhk.co/zesuxetirano/VjaMnjh/nyc_parking_ticket_dispute_status.pdfIn PDF document text
    • https://cdn.sqhk.co/ninujamezol/ihhbHzG/usa_network_channel_number.pdfIn PDF document text
    • https://cdn.sqhk.co/gulanuwe/Pf9gjur/hello_kitty_nail_salon_chino_hills.pdfIn PDF document text
    • http://appless.space/nafisukipatisomofobusaxk0vrx.pdfIn PDF document text
    • https://cdn.sqhk.co/nujekezitifi/sBgjghI/8780069062.pdfIn PDF document text
    • https://cdn.sqhk.co/vukupamita/dpBzTgs/45742794565.pdfIn PDF document text
    • https://fakilopatezi.weebly.com/uploads/1/3/1/6/131606638/3056143.pdfIn PDF document text
    • https://goginaderexikez.weebly.com/uploads/1/3/5/3/135306094/b5bb6c8a.pdfIn PDF document text
    • http://belkwigs.com/moriwogenidavugudawosoge704gn.pdfIn PDF document text
    • http://adv-workshop.site/muzukifugejamekuzadoalcf8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bofogaf.rf.gd/information_systems_audit_report.pdfIn PDF document text
    • http://liwusetokabozil.epizy.com/maxofepodibiriwojerodiz.pdfIn PDF document text
    • http://setopuvoxuz.epizy.com/34505026330.pdfIn PDF document text
    • http://fenulujexita.epizy.com/fokelovelo.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_off0000dd80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD80 5360 bytes
SHA-256: c61d781f0c17529144640cb44e2deb00991117134547f56365fec0d612ea2b4f
font_01_sfnt_off0000efbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFBC 10280 bytes
SHA-256: 0319f57ce2ca00cfdc3334a0e80f53678231ec0c4c38b564304144d490ebc7ac

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