Malicious PDF — malware analysis report

Static analysis result for SHA-256 256495089e31e422…

MALICIOUS

PDF

71.2 KB Created: 2021-02-18 12:13:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: abcd36bc110d1157ce4a91025a3de76b SHA-1: 85877024993122dd01358fbdfa04eea768ade2d0 SHA-256: 256495089e31e42204ec31e43ca451b8f8946712793f8e7f361ed365cfd140f0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=nj+turkey+hunting+zones PDF link annotation
    • https://latowinu.weebly.com/uploads/1/3/4/5/134508675/f5869c869.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418365/normal_600f37a9e0f13.pdfIn PDF document text
    • http://xezojugudapele.iblogger.org/animal_reproduction_worksheet_for_grade_5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485711/normal_60111b1513aa8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422133/normal_5fcdfe81aad77.pdfIn PDF document text
    • https://ranalugepileli.weebly.com/uploads/1/3/4/7/134735155/6085981.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413362/normal_60080c04d0632.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371240/normal_600ff3aa359d2.pdfIn PDF document text
    • https://cdn.sqhk.co/rifusofuwedi/Ybmhdje/ikea_black_dresser_5_drawer.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lusabifef/full_hd_movies_free_app.pdfIn PDF document text
    • http://rozakoxufe.epizy.com/79839446539.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/data_flow_diagram_template_word.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_off0000d22e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD22E 4968 bytes
SHA-256: c477f1ae8da4954a9c2a6ab9e0e043f1bbf418cf8d7e4c15bc7ac38cde7e0b68
font_01_sfnt_off0000e331.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE331 14680 bytes
SHA-256: 53152bc5a0a13712d3e753fd0f56c71ce20b7b7b46ad4d6c8b8fda44f15504fb