Malicious PDF — malware analysis report

Static analysis result for SHA-256 955adbceec653109…

MALICIOUS

PDF

68.4 KB Created: 2021-02-28 18:53:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c707b47a872fae2a28f618ad773b35f4 SHA-1: b009ff4e15f2e04482f80a4fff70c75803ded715 SHA-256: 955adbceec653109387a0528ebd2c128e35e76008bd2018a75d9763affe51b90
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/award?keyword=philips+smartsleep+hf3520%252F60+manual In PDF document text
    • http://boost-shop.xyz/how_to_change_the_battery_in_a_viper_remote_startt5uzg.pdfIn PDF document text
    • http://tewatag.medianewsonline.com/75682069444.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367646/normal_5fcf1ce15a9c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421615/normal_60188b7d3be98.pdfIn PDF document text
    • http://ukrinsure.com/what_does_the_12_mean_on_a_coffee_potllwe9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463554/normal_5fd8bb1da0a7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416664/normal_5fd17cd7f3b81.pdfIn PDF document text
    • http://creditreportfast.info/gipedifilawofewbvl5s.pdfIn PDF document text
    • http://forecast.bet/interview_questions_to_ask_management_applicantsu9z24.pdfIn PDF document text
    • http://kalidejomepajo.scienceontheweb.net/52984949168.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/nimuwet/aashayein_ringtone_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/84082146884.pdfIn PDF document text
    • https://s3.amazonaws.com/zubuwujoxom/opulent_armor_guide.pdfIn PDF document text
    • http://zitejilid.epizy.com/short_guided_meditation_script_for_relaxation.pdfIn PDF document text
    • https://s3.amazonaws.com/gawabog/fewelisojututo.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/71329433329.pdfIn PDF document text
    • http://tixuxunu.epizy.com/mastering_electronics_workbench.pdfIn PDF document text
    • http://dibezul.epizy.com/kurexopubiz.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_off0000cefd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEFD 5896 bytes
SHA-256: 16b7252cb35c847a8764800fbb25e326e2e344b9c273951be25f6d7fbf1b0142
font_01_sfnt_off0000e2e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E2 9872 bytes
SHA-256: 13d0fab62cb6925bbd3633180db462b67e2131a009e2862909293bb82e806406

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