Malicious PDF — malware analysis report

Static analysis result for SHA-256 44fdd4eb41e70bc7…

MALICIOUS

PDF

79.2 KB Created: 2021-03-10 17:26:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9c9977edc58bbb13ea363745c3e95c87 SHA-1: 59a31d05e4034f7222361df4e36f848843b19ff1 SHA-256: 44fdd4eb41e70bc7bc860be3423caccdf085adf1a7f076ec5efcac2627d33118
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/123?utm_term=form+1-+134+affidavit+of+support+2017 PDF link annotation
    • http://richmaya.site/weekly_grammar_worksheet_commas_10_answersh0oku.pdfIn PDF document text
    • http://copyrightshelpscenters.com/kenmore_elite_bottom_freezer_refrigerator_model_795_manualj28r7.pdfIn PDF document text
    • http://goodxday.xyz/mamimatonesiximipobezupa2cnm.pdfIn PDF document text
    • https://cdn.sqhk.co/taduzotul/6ihibhj/mcdonald_s_phone_number_in_texas.pdfIn PDF document text
    • https://cdn.sqhk.co/patagarinixa/jfyJANq/briefing_application_android.pdfIn PDF document text
    • http://jushq.club/desenabezesirokorupeb0pjyd.pdfIn PDF document text
    • http://kkkirrreeee.space/ice_cream_maker_summer_functionbh57l.pdfIn PDF document text
    • http://complect-tech.ru/logic_puzzles_puzzle_baron_answerss2jje.pdfIn PDF document text
    • http://stickerrus.ru/application_for_employment_letter_sample0q5kq.pdfIn PDF document text
    • https://cdn.sqhk.co/satidaruxami/jaRoLge/zibafezikevojigaganizaso.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/tujeviwakirawu/blue_lagoon_the_awakening_300mb.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/69852225991.pdfIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/les_neurones_enchants.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9df266db-39cf-490f-8da9-7a8c85c4314e/cloud_atlas_movie_story_explained.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/7918150823.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/10613575145.pdfIn PDF document text
    • https://s3.amazonaws.com/zebarufuridorur/civ_vi_steam_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6e987ce-3ef2-4809-a15b-6445fc74c21c/divugovonuloganoweputiwuv.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_off0000f8ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8EA 5860 bytes
SHA-256: 33004e27ce62a0bc178a5fd34fd1cecb719c78b9508a8f9766b0d1ebb74d1575
font_01_sfnt_off00010ceb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CEB 10176 bytes
SHA-256: 972ae49b5c038f7ece0c1eb62882c2249d9a06a52de2356b7b33d2a5e0d2a3d5