Malicious PDF — malware analysis report

Static analysis result for SHA-256 650bb337da695f08…

MALICIOUS

PDF

70.1 KB Created: 2021-03-04 08:06:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 85743059be835e64d477558689514d6f SHA-1: 36e5fd38c75b0f0a3e4fff8353c20f29d2a24502 SHA-256: 650bb337da695f08a834f2062cdd24026034ef9f9579809759c6fcfee8e5cd0a
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://xezojetit.ru/wix?keyword=barrier+island+migration PDF link annotation
    • https://cdn.sqhk.co/sibamoxa/eZETyw3/tableau_sort_stacked_bar_chart_by_total.pdfIn PDF document text
    • https://cdn.sqhk.co/vonewesipan/hjGuada/space_program_in_the_us_today.pdfIn PDF document text
    • https://cdn.sqhk.co/rawegili/bCqhen8/cancel_sling_after_free_trial.pdfIn PDF document text
    • http://tosasex.22web.org/1681035662.pdfIn PDF document text
    • http://gazorowegesejix.22web.org/animal_cell_powerpoint_template.pdfIn PDF document text
    • http://fegebekuxew.22web.org/metaphorical_meaning_in_urdu_and_in_english.pdfIn PDF document text
    • http://matroskin.space/alogliptin_and_metformin_hcl0qjxr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450732/normal_5fffd2eaf0aa5.pdfIn PDF document text
    • https://cdn.sqhk.co/nulegudup/uznhcV7/rigekukoxizogidomokiwit.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/zupenafud/bhagam_bhag_movie_hd_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/11455607477.pdfIn PDF document text
    • https://s3.amazonaws.com/nitizobuv/kenulejo.pdfIn PDF document text
    • https://s3.amazonaws.com/gasodamuza/57897829289.pdfIn PDF document text
    • https://s3.amazonaws.com/vinejivunitego/blackleg_in_cattle.pdfIn PDF document text
    • http://xovojiga.epizy.com/diode_bridge_3510_datasheet.pdfIn PDF document text
    • http://mekidojakad.rf.gd/tafovasakududo.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_off0000d85e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD85E 5192 bytes
SHA-256: c576ebf9727b976ee66502c4f120f953f474091cbc068b392896bf208248db1e
font_01_sfnt_off0000e9ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9EF 9876 bytes
SHA-256: 3485a3871c4207854a08c80b2f0c932c8c6416976dc0873110bf587c49db7e71

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