Malicious PDF — malware analysis report

Static analysis result for SHA-256 7adf12a7a38dacec…

MALICIOUS

PDF

71.1 KB Created: 2021-02-13 07:10:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0a4cd14c8804680f560d7d921d3137e7 SHA-1: 9db3410a48485c4d3e4edb8adebc57f6e4080fa8 SHA-256: 7adf12a7a38dacec690450f10bdab4f912826bb33e2510efb2d2eb4c9db2215a
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://maypoin.ru/wix?keyword=rise+of+the+robots+martin+ford+pdf+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4470038/normal_5fe6c3e61997a.pdfIn PDF document text
    • https://cdn.sqhk.co/pevizopubok/Vuihhc4/where_is_my_outside_water_shut_off_valve.pdfIn PDF document text
    • https://cdn.sqhk.co/vorebilifi/yjifidq/mujofevojurazuwudomivu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490121/normal_60079b10e5420.pdfIn PDF document text
    • https://cdn.sqhk.co/vobipibomuk/iLnAhdX/starting_over_lyrics_and_chords.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470696/normal_601223c2d7649.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452595/normal_60179e1b00bb0.pdfIn PDF document text
    • http://alkim.xyz/wondershare_filmora_video_editor_apkswjzr.pdfIn PDF document text
    • https://cdn.sqhk.co/rizonozugaj/ciazifB/lelejuxuponigifixovorokag.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409239/normal_5fddba5b77ee3.pdfIn PDF document text
    • http://postel-na-zakaz.ru/non_asbestos_fiber_cement_sheetf06w9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391642/normal_601449e906bd6.pdfIn PDF document text
    • http://dorightunion.com/ecu_sensors_and_actuatorsj9elo.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/tejuvonixag/tourist_information_brussels_city.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/sipolip.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/netflix_pro_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/16084252000.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/car_and_bike_racing_games_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_off0000dab0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB0 5520 bytes
SHA-256: b88baccea0ba6740afd9ca40705dfef32cca0aab1613aca0164ea6df53277094
font_01_sfnt_off0000ed58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED58 9948 bytes
SHA-256: 605191f75e91f191e34bf805d5b6a8d8a79c7afe92df50e63908de6ed8976cc2