Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fe0e465171144d4…

MALICIOUS

PDF

73.2 KB Created: 2021-02-06 02:28:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 946eb619ab541921516a324d1a50b12a SHA-1: c24cdf511b16906f97ba37a05e75b045cdbf6cce SHA-256: 9fe0e465171144d401997087cdb87a2bf181cd0b402dcc6d544dd1b21fb53e4a
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://jacksth.ru/aws?utm_term=abbreviation+book+pdf+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4498893/normal_5fd877894a0f9.pdfIn PDF document text
    • https://zufulakoloti.weebly.com/uploads/1/3/5/3/135301661/pasadizaki.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466370/normal_5ff4e0ff09df0.pdfIn PDF document text
    • http://optarfes.com/41554254969v5ai1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461744/normal_60109e5933183.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426409/normal_60144336b7773.pdfIn PDF document text
    • http://iqecoportal.ru/new_star_wars_movies_coming_outfe0hp.pdfIn PDF document text
    • http://bred-enligne.com/harry_potter_wizards_unite_guide_bookbqjlw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460055/normal_5fe3e851ef1b4.pdfIn PDF document text
    • https://murenelu.weebly.com/uploads/1/3/1/8/131856612/4285761.pdfIn PDF document text
    • https://wuwebiwurumebil.weebly.com/uploads/1/3/1/1/131164488/6637154.pdfIn PDF document text
    • http://detonic-romania.website/gixolamoteuac2d.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/saxefi/charindex_vs_patindex_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/tubupejevomo/ethiopian_reporter_news_english.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/al_quran_bahasa_indonesia_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_off0000e10a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE10A 5080 bytes
SHA-256: 34e79169b5fd468892c73c58c435b7a85a794ea8f745207f1ada0bc7fdfc37d9
font_01_sfnt_off0000f26c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF26C 11500 bytes
SHA-256: d7c0327d21ad52a42e0722f2a7dc68036639ee58ddc4475d30fc3f0a9ec0607d