Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed730f7e30547f24…

MALICIOUS

PDF

75.7 KB Created: 2021-02-27 04:47:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 1c4b308c2586086f646425cf5c60bcee SHA-1: 5d8a1e952f42c440bca9b4711b59365635fcff5d SHA-256: ed730f7e30547f24a99f74f8f9309f6d39950224c79d312b6320ef5d98e2ee84
136 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
  • 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://botokaw.ru/123?utm_term=2014+sportster+owners+manual PDF link annotation
    • https://cdn.sqhk.co/lijipatalenu/1CicToo/penalty_kick_game_online_play.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380522/normal_5ff711231e348.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450514/normal_5fd61af7aca7d.pdfIn PDF document text
    • https://cdn.sqhk.co/pawapoma/jcji8WK/jatowasalenonufelog.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/ahjhhZP/zotujidilubi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459319/normal_6004a46e35db5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xafafomuripag.epizy.com/88079295468.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/lab_safety_rules.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/axess_tvd1801-_13_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/miriniloximugi.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/wejapusolimasemarepu.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/english_grammar_in_use_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/wunapuw.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/webesiv.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/35078774687.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_off0000e948.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE948 5376 bytes
SHA-256: 42d0e42828344cc36ecea9a748ecc5356e8933064ee8127d7da3bb9de589eebf
font_01_sfnt_off0000fb90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB90 11204 bytes
SHA-256: ba208510252425e34770781c39e4e33075bdaa69ceae769b0ab924d42538f9bc