Malicious PDF — malware analysis report

Static analysis result for SHA-256 14d343836d57c5a1…

MALICIOUS

PDF

70.1 KB Created: 2021-02-12 00:11:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8731701e724d1ad8339c37be858ed393 SHA-1: 0356114f312b859e8d5fe2e3f8c3d856b2e131ea SHA-256: 14d343836d57c5a1fb42628a0d49f1ae923cb64595c386fd9cc083ada374b95d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=capitulo+2a-8+crossword+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4452851/normal_5ffea0aa1e453.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408981/normal_601a9b7e447e3.pdfIn PDF document text
    • http://ranking-se.com/50368887969jx3ne.pdfIn PDF document text
    • http://ersoil.fun/isotope_notation_worksheet_2_answerssi6bg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459185/normal_5feb90f84e6b9.pdfIn PDF document text
    • http://thelandofbadideas.com/fulilunenelotetatufalibchdnr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454180/normal_5ff811f7cda6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459054/normal_60212cc40beab.pdfIn PDF document text
    • http://xbet1.fun/63051118847312pa.pdfIn PDF document text
    • https://sunajekivogemaz.weebly.com/uploads/1/3/4/8/134895881/a2e7225fd4251ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385614/normal_5fe63a673b58d.pdfIn PDF document text
    • http://center-about.com/jntuh_r13_percentage_calculator55npa.pdfIn PDF document text
    • https://vifazadaza.weebly.com/uploads/1/3/4/8/134883600/roduwaj-popafujukudab-mizekole.pdfIn PDF document text
    • https://lidafeli.weebly.com/uploads/1/3/4/6/134683499/1122668.pdfIn PDF document text
    • http://help-feedback-amzn3.xyz/500663383581t83o.pdfIn PDF document text
    • http://kismykeitio.best/62375343426np803.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379489/normal_601bdd91717e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447271/normal_6010d9d974233.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kafogateginoni.epizy.com/oxford_medical_dictionary_for_pc.pdfIn PDF document text
    • http://funasuruwet.epizy.com/businessman_movie_hd_telugu.pdfIn PDF document text
    • http://kelamivajaw.rf.gd/automatic_vs_manual_transmission_reliability.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_off0000d51e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD51E 5424 bytes
SHA-256: c26a38e6e63910ba4a7baad2d76cf6daa23aa951b6d54133855b8d9af2066a96
font_01_sfnt_off0000e7ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7AE 10452 bytes
SHA-256: c16d40987fcfe0a348c810ab4e8c574afe92d0dc3df68b71234f27d9064415c3

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