Malicious PDF — malware analysis report

Static analysis result for SHA-256 d034bb230e803788…

MALICIOUS

PDF

73.5 KB Created: 2021-02-19 04:44:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f7def72d504dcad3a50d86a50bc89f36 SHA-1: 682b64ef2bc4fe9e5f6d35c96368557a8d171176 SHA-256: d034bb230e80378891e54a2d2542183a30f9e4fbad8773cbe1920eb9f4177ba0
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • 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://baarspo.ru/wb?keyword=2015%20victory%20cross%20country%20maintenance%20schedule PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4419645/normal_5fe3f7df122e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487658/normal_6010a86402426.pdfIn PDF document text
    • https://cdn.sqhk.co/butaliwe/1hhbqgj/wolfcraft_corner_clamps_review.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475564/normal_5fdfdd94a9145.pdfIn PDF document text
    • https://cdn.sqhk.co/xuluriwu/jafrjb7/36171774735.pdfIn PDF document text
    • http://helpcopyright-service.com/xodamuwaweladuwiparuhhas.pdfIn PDF document text
    • https://cdn.sqhk.co/litazujizime/Ndgfghe/63915139865.pdfIn PDF document text
    • http://azakalaza5.xyz/kegobunubanuvuwipixascycpt.pdfIn PDF document text
    • https://cdn.sqhk.co/xijisejes/hedcvjj/pefimifalerenofewisaragu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487399/normal_602ec1c499b93.pdfIn PDF document text
    • https://cdn.sqhk.co/xuzuvazol/rgh1ig2/angry_birds_movie_2_trailer_1.pdfIn PDF document text
    • http://helpcontactform.com/leia_s_theme_violin_sheet_music2cgkq.pdfIn PDF document text
    • https://cdn.sqhk.co/rifibimilo/hhhgYii/nironowid.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/fifomi/52552833830.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/brady_label_printer_templates_word.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_off0000e110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE110 5696 bytes
SHA-256: 2e49086b60cb8d5bffba2d87214975e3e1a94dd59672d6dfcf6c503478785811
font_01_sfnt_off0000f45c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF45C 10208 bytes
SHA-256: cdd15864e28390ac999df5b437a0bbd22fa72bdac174aa13c6295e5bba120567