Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3dccb98a5974c2c…

MALICIOUS

PDF

69.9 KB Created: 2021-02-25 20:48:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d07971a6fc271ff2ca73674db3bf50c4 SHA-1: b2d7e88fdd600b66daf152dd10e17f304acf2d16 SHA-256: c3dccb98a5974c2cde9f09d57c7965fe1f41b1d571cc35d4065846f3775b3170
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://crophysi.ru/wix?keyword=mount+vernon+east+train+schedule In PDF document text
    • http://kuxogajow.iblogger.org/96492835459.pdfIn PDF document text
    • https://bativizamazon.weebly.com/uploads/1/3/4/7/134770744/31c4d7f.pdfIn PDF document text
    • http://xamakag.iblogger.org/xiwumidogelava.pdfIn PDF document text
    • http://medyayazilimtr.com/polycarbonate_roof_sheeting_builders_warehouseutr2m.pdfIn PDF document text
    • http://visionnew.xyz/curso_aprendizajes_clave_preescolarsfccx.pdfIn PDF document text
    • http://mini-cam-v2.club/basic_electrical_calculations_formulasdnh6r.pdfIn PDF document text
    • https://joripirido.weebly.com/uploads/1/3/0/7/130776040/folimate_mubosaxal_munugagelat_sasara.pdfIn PDF document text
    • https://nozabuzewetuk.weebly.com/uploads/1/3/2/6/132683147/demisupef-mugupipolumisu.pdfIn PDF document text
    • http://sawemawe.mywebcommunity.org/5865523659.pdfIn PDF document text
    • http://kfcrabota.ru/how_to_put_a_knot_in_your_t_shirt6lezl.pdfIn PDF document text
    • https://tudegikugil.weebly.com/uploads/1/3/5/3/135317618/runijox.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://momejawepafad.epizy.com/listlessness_crossword_clues_and_answers.pdfIn PDF document text
    • http://fowudunomus.epizy.com/psychology_malayalam_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/free_folder_icons_for_windows_10.pdfIn PDF document text
    • http://wemubivoparuf.epizy.com/idylis_dehumidifier_e1_error_code.pdfIn PDF document text
    • http://vudexejuvejutek.rf.gd/76306810709.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/long_sleeve_polo_shirt_design_template.pdfIn PDF document text
    • http://zubidimuxazevow.epizy.com/worksheet_maker_spelling.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_off0000d594.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD594 5092 bytes
SHA-256: 8a5df2569171833247b128152aedd1e7a25617b297d0cddd7acd9dc617d2eb73
font_01_sfnt_off0000e6ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6EC 10324 bytes
SHA-256: c060205fffbc60f3aefc8fc19f1738547c3f744fc9ed966c865cf6db0fa4a206