Malicious PDF — malware analysis report

Static analysis result for SHA-256 20f77800ad99a2a8…

MALICIOUS

PDF

71.4 KB Created: 2021-02-19 05:55:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ec26d42514d6e5ee8a925da714728c62 SHA-1: f0296302fee2c938903d842fb30e0d053be2fdc0 SHA-256: 20f77800ad99a2a825603d4eee1858b80fc1dd7a43f0e7149ffb91a840d1fb68
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://jacksth.ru/wix?keyword=stick+games+kill+the+spartan PDF link annotation
    • https://cdn.sqhk.co/badaxiloru/2mwO2nh/soccer_bet365_football_prediction.pdfIn PDF document text
    • https://cdn.sqhk.co/venifirub/gffiijf/12851544291.pdfIn PDF document text
    • https://cdn.sqhk.co/gabisolovima/fxwgeAd/53925912719.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463529/normal_601513ab4d4ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477167/normal_5ff8448e7433c.pdfIn PDF document text
    • http://affilateapp.online/does_samsung_tv_have_audio_outcmq06.pdfIn PDF document text
    • https://cdn.sqhk.co/turanexode/fijuM69/paynow_topup_total.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454671/normal_5fccd97894c1d.pdfIn PDF document text
    • https://cdn.sqhk.co/tunuviju/fveZjjk/smash_up_derby_ontario.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405925/normal_5ff03f4a9b579.pdfIn PDF document text
    • https://cdn.sqhk.co/zebusukef/r9icEig/jennie_blackpink_fake_calls_prank_wallpapers.pdfIn PDF document text
    • https://cdn.sqhk.co/webaxepibi/ieMBuM2/vufedoxajobizane.pdfIn PDF document text
    • http://ru-1.casa/puwawodetuvexly666.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450734/normal_60065656b3d5c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484156/normal_60221772e3d39.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369505/normal_60242c5b3ba37.pdfIn PDF document text
    • http://funseeds.site/marketplace_bike_simulation_answers64bni.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426697/normal_600838e19dae4.pdfIn PDF document text
    • https://cdn.sqhk.co/wamiratena/mhbjarP/jamukusapa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rapozafetod.epizy.com/how_hard_is_the_cicerone_beer_server_exam.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_off0000db9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB9B 5516 bytes
SHA-256: 2189da586a7367e01474438b9f2df5188ae26fa60949d6f064db13a33ca3b2a1
font_01_sfnt_off0000ee37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE37 10096 bytes
SHA-256: 3032d22a0e68812df82c08be991cca0374a7eb1b800a474d8288cb5cac5315b8

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