Malicious PDF — malware analysis report

Static analysis result for SHA-256 57333a30add26702…

MALICIOUS

PDF

78.7 KB Created: 2021-02-03 12:45:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3a6e23693bd0caffc70c05b1e75d92b2 SHA-1: 987973b3a5b70358257151206dbc93f6e047f4e1 SHA-256: 57333a30add267021fe64dc59dd6cf01b05bfda41f2366f264209f8f39455867
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://jottigo.ru/123?utm_term=superman+and+paula+brown%2527s+new+snowsuit+full+story PDF link annotation
    • http://reduslim-shop.site/homeland_gustav_holst_sheet_musickham1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415962/normal_5fd33b8c8204c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468823/normal_600db0f76d098.pdfIn PDF document text
    • http://pedrons.space/pelicula_de_spirit_en_espaC3B1oloeofs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479240/normal_5ff4eb9b78caf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387235/normal_5fed90b06d300.pdfIn PDF document text
    • http://catsism.com/extreme_car_driving_simulator_game_downloadkhgbk.pdfIn PDF document text
    • http://bestita.space/82972129890hd5xr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495843/normal_600664f212b9f.pdfIn PDF document text
    • http://stat-index-co.com/menologoritubekasoloxg860u.pdfIn PDF document text
    • http://eroganoficial.site/los_tres_cerditos_version_contada_por_el_lobom6q62.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385880/normal_60020951929a8.pdfIn PDF document text
    • http://enots.space/200285678587bnkn.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/likerajatob/podepapifo.pdfIn PDF document text
    • http://zemodisiriv.epizy.com/philadelphia_bus_map.pdfIn PDF document text
    • https://s3.amazonaws.com/kimone/cambridge_advanced_learner_s_dictionary_chomikuj.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/vojoxigike.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/kepala_bergetar_film.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_off0000f48e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF48E 5660 bytes
SHA-256: a228ea8078ac5cef26f4de4ec75ac0b3cbc30c5d55892ac871c6f9794529ba7d
font_01_sfnt_off000107cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107CB 10980 bytes
SHA-256: 24b0b3ce7ccb47f037aa51e35b85d1e85e88148098ae00836f99ea6b98c43be0