Malicious PDF — malware analysis report

Static analysis result for SHA-256 649515466b989417…

MALICIOUS

PDF

71.0 KB Created: 2021-03-02 12:48:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 35a75dca19d916e7f83650f5408448aa SHA-1: 9104e40d928cc42b399a4728431fcb9bdd02c307 SHA-256: 649515466b989417f655410de0f44370b13b8ab0d8f0559a57a58797e0b16be8
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://kuzutuzo.ru/wix?keyword=st+dorothy+school+glendora+ca PDF link annotation
    • http://unreguezff.rest/34891847435mp777.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444852/normal_5ff1bb490d752.pdfIn PDF document text
    • https://cdn.sqhk.co/jukunobegabe/6Uighau/zozikunimepaxapuriba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369503/normal_5ff7c0060c8c1.pdfIn PDF document text
    • http://cheatyou.site/ice_hockey_stick_tape_waxdtt19.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503787/normal_5fc608fe71bb8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468274/normal_5fce6ce2a97a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453579/normal_6024469ab210c.pdfIn PDF document text
    • http://lomigakorak.getenjoyment.net/bekuvanigozu.pdfIn PDF document text
    • http://best-store.club/8446602598eh3f5.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/wumodukubaru/la_la_land_theme_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/penale/longman_academic_writing_series_4.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/visa_application_form_japan.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_off0000d8d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8D6 5404 bytes
SHA-256: cfff395bb173a87fadeac817925fd5241d76a0608aee9871274b48c6950faee5
font_01_sfnt_off0000eb36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB36 10672 bytes
SHA-256: 087af6c9ecb3207de5e053cebf1f7ced6f8baf86bf8d292a942284546fc20fc3