Malicious PDF — malware analysis report

Static analysis result for SHA-256 2abecec9768f522f…

MALICIOUS

PDF

71.1 KB Created: 2021-02-20 19:45:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1868b6bdc62aee5d54e7e042844452ed SHA-1: 7a23e4fe84e67da41bfe12f2bf3b4827c4683989 SHA-256: 2abecec9768f522f78799eaabb3e2aaf3c0fab39a67c1431ea1ce824159d802b
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://yafferge.ru/strik?utm_term=how+do+you+reset+a+mitsubishi+mini+split In PDF document text
    • http://medicalpracticementor.com/kipusupamafubisoo2giy.pdfIn PDF document text
    • http://ritual-venki.online/que_es_el_plan_unico_de_cuentas_yahoorwdzr.pdfIn PDF document text
    • http://shopyou.online/categories_gramaticals_exercicis_primariahhdtn.pdfIn PDF document text
    • http://dfds.in/gaworisife9ipxi.pdfIn PDF document text
    • https://cdn.sqhk.co/sibamoxa/eWOV4ib/princess_cruise_login_travel_agent.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392656/normal_6020fa397aa14.pdfIn PDF document text
    • https://cdn.sqhk.co/turanexode/jfiiF7v/nirala.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408461/normal_602e09d6171e9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417658/normal_60141b253e310.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490371/normal_601459f94b3d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495558/normal_602827262698f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lizuratudesaxop.epizy.com/jasezoxivowov.pdfIn PDF document text
    • http://puzasapexuwuju.epizy.com/adb_android_phone_driver.pdfIn PDF document text
    • http://vominobig.rf.gd/benulawavu.pdfIn PDF document text
    • http://zejimuporuje.epizy.com/48145687482.pdfIn PDF document text
    • http://ramapenutizawa.epizy.com/does_artemis_fowl_fall_in_love_with_holly.pdfIn PDF document text
    • http://zujuketa.rf.gd/metformin_er_half_life.pdfIn PDF document text
    • http://bikutuvuxaxixo.epizy.com/vexodixikufelimukujikokip.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_off0000d923.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD923 5492 bytes
SHA-256: 51ce3ebabb6b26552d3f4b811226e0009078f6cfdeaad819d92814afab372e7a
font_01_sfnt_off0000ebb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBB3 10532 bytes
SHA-256: dfc3c7144d45f8ffffe43429b46aa8c4f96186e719df4ebd80b0308e83b83e19