Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dff666a65f84508…

MALICIOUS

PDF

76.3 KB Created: 2021-01-01 10:22:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 09a0c52c907ef57430a6df80032ee3a7 SHA-1: d158c0dbe5a471ef7d85967f3ee17cbd91bf621b SHA-256: 4dff666a65f8450857491df5b9ddd0fb8fe3bb211e352a0a47b9509124c33acc
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://traffset.ru/shook?utm_term=movies+coming+out+in+october+2020+on+netflix PDF link annotation
    • https://cdn.sqhk.co/ruxunafifu/Dxjaii5/sheeping_around_strategy_card_games.pdfIn PDF document text
    • https://cdn.sqhk.co/vutazazu/hiPLpI9/color_tunnel_2_player_games.pdfIn PDF document text
    • https://cdn.sqhk.co/kebubupoxiz/SB1m8hS/ted_lasso_commercial_2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/cdca58d4-3725-4ce3-898f-aa764b8abaa6/68844211833.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/avery_labels_8160_template_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc0ce9d9-c5e3-4d7b-9b95-bf7ab45db0ab/patricia_kennealy-morrison_now.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/729d10ac-026a-4c87-8eca-19f66a0707c2/24031048014.pdfIn PDF document text
    • https://s3.amazonaws.com/potofaw/general_biology_test_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/carboxiterapia_fisiologia.pdfIn PDF document text
    • https://s3.amazonaws.com/samopakamefap/69102724082.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/aashiqui_3_video_song_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/the_new_deal_cwa_purpose.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/12934912811.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32c2e3a1-de8a-42fd-b413-de9d623537db/musynx_ps4_trophies.pdfIn PDF document text
    • https://s3.amazonaws.com/xanunafojuloki/unblocked_games_76_madalin_cars_multiplayer.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_off0000ec1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC1B 5540 bytes
SHA-256: 043442e092db847a4670df476f34d8d30e42e919cfe3402760b2fcd450f82427
font_01_sfnt_off0000ff03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF03 10912 bytes
SHA-256: 565131d4b10c56cb3221b0ab807d8ff9619c107eef0e560daacd6fa39395f58f