Malicious PDF — malware analysis report

Static analysis result for SHA-256 36986026b90c99db…

MALICIOUS

PDF

82.0 KB Created: 2021-02-20 16:59:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e967a22be1a3f0acd7802999c90e05d6 SHA-1: c1642fc2ef971d5f6199227e03b6ca1dae5d675a SHA-256: 36986026b90c99dbf4230369d4c5dc9c67da05df8b4b4d3060bc27ea1b0dc710
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://leonvi.ru/123?utm_term=how+to+scan+using+printer+hp+deskjet+2545 PDF link annotation
    • http://sell-toclick.online/heart_and_stroke_canada_guidelinesb9ilk.pdfIn PDF document text
    • https://tawigijonepoter.weebly.com/uploads/1/3/4/0/134012415/7ca673fc685322e.pdfIn PDF document text
    • https://guzepebizosi.weebly.com/uploads/1/3/4/8/134880367/8515669.pdfIn PDF document text
    • http://yachts-4-sale.com/lodger_agreement_template_shelteray24r.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496571/normal_5ff87037df213.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450907/normal_5fe2320c1c846.pdfIn PDF document text
    • http://helplnstagramcontact6088757.com/31626758930qsb4v.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455180/normal_5fd17f6a3d976.pdfIn PDF document text
    • http://bcpzonasegura10beta-viabcp.com/29446737497d3o6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450139/normal_603033378cf56.pdfIn PDF document text
    • https://pezusipadivo.weebly.com/uploads/1/3/2/3/132303316/8004980.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4527902/normal_5ffbd9f05ac49.pdfIn PDF document text
    • http://gratoramaa.space/possessive_adjectives_spanish_worksheet_answer_keyxo1wz.pdfIn PDF document text
    • https://cdn.sqhk.co/novigigexuxo/gcxgfih/city_racing_download_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468537/normal_601745028ed73.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447251/normal_5fe5ab56519cb.pdfIn PDF document text
    • https://cdn.sqhk.co/bapuwanuvadi/HfjdH8l/easy_recharge_idea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384301/normal_602e63c36b882.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00010306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10306 5840 bytes
SHA-256: dafe035783b91af48e462b42970c20ef1274499cb88ecd6befe9deb61580ae83
font_01_sfnt_off000116ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116FF 10564 bytes
SHA-256: f6fa833db3e66e4ba4dc7b38cd94bbcb75f785ee2e5abe6a01ff9e2cc458aa63