Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a62f4d160fa2845…

MALICIOUS

PDF

76.8 KB Created: 2021-03-02 13:17:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3ec63d15e2b5e5297c36b73723a34681 SHA-1: 9ae520f7068475412395828df002f747fcc4218b SHA-256: 3a62f4d160fa28451f8c5ddae79c58f0934a05c1f5ea5815b29e09bbf7c02e65
126 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
  • 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://dugedepap.ru/123?utm_term=instruction+commentary+edtpa+early+childhood PDF link annotation
    • http://hookup671.site/30020072014wgwm6.pdfIn PDF document text
    • http://siviveko.getenjoyment.net/why_is_my_wifi_not_working_on_my_sony_smart_tv.pdfIn PDF document text
    • http://xonitaj.mywebcommunity.org/how_much_does_it_cost_to_fix_a_motorola_screen.pdfIn PDF document text
    • http://regse.website/tamivobotelfk4p1.pdfIn PDF document text
    • http://expressvpn.store/ratezupbsc87.pdfIn PDF document text
    • https://zudobusida.weebly.com/uploads/1/3/5/3/135330479/sexisa_teroriv.pdfIn PDF document text
    • https://suzixibaru.weebly.com/uploads/1/3/4/7/134709676/sokejegewuxum.pdfIn PDF document text
    • http://pofuxubilet.sportsontheweb.net/divine_mercy_chaplet_chant.pdfIn PDF document text
    • http://micrometerdigital.xyz/temug8vjqq.pdfIn PDF document text
    • http://jisetatiloro.scienceontheweb.net/lujon.pdfIn PDF document text
    • http://whitetwo.space/baixar_whatsapp_plus_apk_atualizado_201891a0u.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500183/normal_5fd2f2d88981b.pdfIn PDF document text
    • https://sotamepepoj.weebly.com/uploads/1/3/0/8/130874386/dirubul_kepazufadifozu_zalazukelozuruv.pdfIn PDF document text
    • https://xotubowewetiner.weebly.com/uploads/1/3/2/6/132696149/b49d5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://saluwagasa.onlinewebshop.net/best_ap_language_and_composition_review_book.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_off0000f04c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF04C 5352 bytes
SHA-256: ecfe298353581c4e70ee1f75367596da8a4e71b60c480593ae2766595d4edbd2
font_01_sfnt_off00010254.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10254 10608 bytes
SHA-256: 35732af0aa3918480c3fbd8d319919210ee7a84b0d98d3ef270306298bc21d1d