Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c1d596c9249f517…

MALICIOUS

PDF

69.9 KB Created: 2021-02-19 18:37:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6aa4a02e4bd1136253c608ef368bbe06 SHA-1: 613ebbc40d8b5a170fdfc1f88295253d21e9df0e SHA-256: 0c1d596c9249f517f663afb355eab26109c9584eaa13ba11a3c1b0c3ff5b20e3
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://maypoin.ru/wix?keyword=early+college+academy+albuquerque PDF link annotation
    • http://dvigatel.guru/arifureta_novela_espaol0qh9v.pdfIn PDF document text
    • https://mixozanuzobese.weebly.com/uploads/1/3/5/4/135400893/055c021.pdfIn PDF document text
    • http://help-feedback-amzn3.xyz/46432295357kyw5y.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402247/normal_600ae6d62fda9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478378/normal_60146bb1c20f1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380379/normal_5fcf3bfbf2052.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426832/normal_5ffefb2c4d896.pdfIn PDF document text
    • https://xiwajuropoji.weebly.com/uploads/1/3/4/3/134371127/9f4793218c.pdfIn PDF document text
    • https://naroxelilokatud.weebly.com/uploads/1/3/1/3/131384214/lejifanodosinabuja.pdfIn PDF document text
    • https://wusulanapezuvu.weebly.com/uploads/1/3/4/3/134325740/a697a8421e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470409/normal_602f91e63aa99.pdfIn PDF document text
    • https://webemimerur.weebly.com/uploads/1/3/1/3/131380848/gewubom.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/mamibis/expanding_brackets_and_simplifying_worksheet_tes.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/command_and_conquer_rivals_pvp_mod_apk.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_off0000d3e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3E4 5408 bytes
SHA-256: 6a35179a1217e12a6811b841cd48a98f7c0d69b8d6fcf210487deb227b3138a9
font_01_sfnt_off0000e632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE632 10776 bytes
SHA-256: 0d8645087338e01bdc03072a38ceb36c25febfd265a31778819549a50fe961f0