Malicious PDF — malware analysis report

Static analysis result for SHA-256 53b06a217cd34e43…

MALICIOUS

PDF

70.0 KB Created: 2021-02-21 00:49:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 102afa57658fbb1f922fcd5e179d5f58 SHA-1: 0cac370c6c20c6f505421bfe6d18cb00d5b6e4a0 SHA-256: 53b06a217cd34e431ab5ef2772b815e8d628ac5662955db8f16a9c639b5a373f
126 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
  • 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=fellowes+shredder+service+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4445729/normal_5fe2c2331fbe3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378827/normal_600ec2912049a.pdfIn PDF document text
    • http://apsmall.space/finding_missing_angles_worksheet_answers_4th_gradee235l.pdfIn PDF document text
    • http://pixell.store/68492571895y9th.pdfIn PDF document text
    • http://wonder-ita.fun/32763364283m151p.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413226/normal_6023f27856e1d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426556/normal_6029536b283cc.pdfIn PDF document text
    • http://vipadminler.org/papabegexupipi5rz3u.pdfIn PDF document text
    • http://lovechat24.club/sivinumidumiwodiposuzopoz9c6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387054/normal_5fefcfe56f39a.pdfIn PDF document text
    • http://uscovidcharts.com/movabokibedova2y5aq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470688/normal_5fd914466e089.pdfIn PDF document text
    • http://smartcoin.design/new_england_roast_beefc6i6z.pdfIn PDF document text
    • http://help-lnstagram-verifycopyrgiht.com/raxagiduvi08iwh.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/rimejiguvif/kabusitejipa.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_off0000cada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCADA 5288 bytes
SHA-256: d979495fea208e8191c2ed8d78a2115875f05c4cc8c866449833c9b8f35226be
font_01_sfnt_off0000dcc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC0 14624 bytes
SHA-256: a91e54e34afd06e1dc83c00146142aba9cef38acf61d432b1a0eeb49b2338536