Malicious PDF — malware analysis report

Static analysis result for SHA-256 49350563d210d0c8…

MALICIOUS

PDF

71.5 KB Created: 2021-03-01 09:20:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fa69f898e5af0078cf79cd291a9c8239 SHA-1: 2f3cbb10701b06471b2edfb2c43abfb426f674a0 SHA-256: 49350563d210d0c8a11fde58129427ac2b8940c6b861ffa3ca4e3b19a1a5ceb8
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://zajinet.ru/award?keyword=company+law+bare+act+in+hindi PDF link annotation
    • http://nuloriwilorij.scienceontheweb.net/how_to_set_timing_on_a_5hp_briggs_and_stratton.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452373/normal_6031f62ee1c5f.pdfIn PDF document text
    • http://kojazunupetip.mygamesonline.org/lozetunajolotatajulibi.pdfIn PDF document text
    • http://tupaxeguna.scienceontheweb.net/32095356.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460966/normal_5ff13acf4e00f.pdfIn PDF document text
    • http://lojapidabud.mypressonline.com/85435600808.pdfIn PDF document text
    • http://vuvulusigi.scienceontheweb.net/purunajefutoxumono.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479675/normal_5fdfa8e033d77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471992/normal_602d20e38d3c0.pdfIn PDF document text
    • https://gupupekulumo.weebly.com/uploads/1/3/4/1/134108922/paxoseka.pdfIn PDF document text
    • http://leziwazedo.mypressonline.com/focusrite_scarlett_18i20_2nd_gen_driver.pdfIn PDF document text
    • http://betijeduw.getenjoyment.net/best_rock_ballads_of_the_70s.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pelebirepopo.onlinewebshop.net/42690110710.pdfIn PDF document text
    • http://gutekuretejapoj.onlinewebshop.net/which_coffee_maker_is_the_best_for_home_use.pdfIn PDF document text
    • http://rabatelekovufar.myartsonline.com/fender_mustang_lt25_guitar_amp.pdfIn PDF document text
    • http://ratobewiwigu.atwebpages.com/genie_pro_screw_drive_clicker_remote.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_off0000db4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB4A 5376 bytes
SHA-256: 53d3f4a8355030e7f68cce727913aa125712fd0f537fa9532f554083455f9913
font_01_sfnt_off0000ed6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED6E 10424 bytes
SHA-256: c5ad5f233f924aa165818e30460a6b8b9635f74ce7a55ba0f925fdb984580244