Malicious PDF — malware analysis report

Static analysis result for SHA-256 af0adc6f1af98ed6…

MALICIOUS

PDF

72.1 KB Created: 2021-02-13 17:23:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 26f337928c43400726445f106d0d20fd SHA-1: fc232443f0b0cc6c8b0f7a64ef00d5db8ce5de20 SHA-256: af0adc6f1af98ed68745b074a4efe024b686fb8611b48c762431ac48861ea6e2
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://maypoin.ru/wix?keyword=wordly+wise+pdf PDF link annotation
    • https://cdn.sqhk.co/jimikafede/iejehgK/holo_launcher_for_ics_plus_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/derepinejabi/ihSPXhc/42106153552.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369905/normal_601e5f553e2a5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451755/normal_5ff9c1446562e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/kujapomib/beetle_care_sheet_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/vibasujefir/hourly_calculator_timesheet.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/drdo_application_form_online_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/2013_bollywood_movies_ram_leela.pdfIn PDF document text
    • https://s3.amazonaws.com/ginutu/bodyguard_film_full_hd_video_song.pdfIn PDF document text
    • http://zunizififuve.epizy.com/workbooks._add_template_c.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/sorukaxapegiwelomosavineb.pdfIn PDF document text
    • http://tuxesoguzegisox.epizy.com/farorozodotasumavu.pdfIn PDF document text
    • https://s3.amazonaws.com/bidemewufa/saxon_math_answers_7th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/92496098206.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/article_15_of_indian_constitution_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/best_cover_letter_template.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBC0 4636 bytes
SHA-256: 580ba7b4c46953b1ad6543b307b3a2804168b17e7cf172bb75aaacd951a62d27
font_01_sfnt_off0000dbac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBAC 14276 bytes
SHA-256: 9a9999ce7b8a0161eaa4951db5a0c25a9a6172204d53c39ada1662c65ea44520
font_02_sfnt_off0001053c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1053C 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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