Malicious PDF — malware analysis report

Static analysis result for SHA-256 07fd7884b8aeb098…

MALICIOUS

PDF

73.4 KB Created: 2021-02-17 02:34:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e7e3868629d90a435feb317ad507d04e SHA-1: e08b9a0a5fd11cf803dd984f1033a3c8ce9444fa SHA-256: 07fd7884b8aeb098001fc42548e2ea8440677007df68dc9727a4b6534a833839
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://bologen.ru/aws?utm_term=how+much+does+a+cfa+earn+in+australia PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379984/normal_60149e8ce4d35.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384632/normal_6000431c50687.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413578/normal_5ff49b9177b84.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488581/normal_5fd674ee58230.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403404/normal_5ff0da760748b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493545/normal_5fdf6610c9cd4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449777/normal_5fcbd1eb36867.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414153/normal_60049b648d73e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492573/normal_602c55417f7b5.pdfIn PDF document text
    • http://power-guard.shop/bjp_party_new_songnn3kr.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/bubisifapagefe/immortal_syndicate_cheat_sheet_3._8.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/winesutexapidalex.pdfIn PDF document text
    • https://s3.amazonaws.com/boxujetanonikuv/54085465026.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/blade_and_sorcery_mods.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/xafusafanojuxit.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_off0000ded8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDED8 5316 bytes
SHA-256: 8bef03ddbb0ccb099f8eb69685e2137d79712331b25764ca7ced8d616438d1b9
font_01_sfnt_off0000f0cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0CF 11220 bytes
SHA-256: d28282cfaa0d9c3f363d464ad2838ea0c4bbac447eccd9eefe1645cd593b017a