Malicious PDF — malware analysis report

Static analysis result for SHA-256 93695ee7a67949fa…

MALICIOUS

PDF

72.6 KB Created: 2021-03-10 01:40:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 281bacf7a96bd2cf30440f076f44b1fb SHA-1: 810b9c9c4a3f23c3df9be6fd2087daccf24387c4 SHA-256: 93695ee7a67949fa6f13e18785c5546548561db8e5a1262bc6ce3a2352cdebac
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://jottigo.ru/award?keyword=information+asymmetry+theory+pdf PDF link annotation
    • http://zakosemej.mypressonline.com/what_is_stress_science_definition.pdfIn PDF document text
    • https://cdn.sqhk.co/rigizisojix/eUgjjjU/horse_colouring_book_for_adults.pdfIn PDF document text
    • https://cdn.sqhk.co/rogolafu/MhhjiEb/youtube_studio_classic_2020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376598/normal_5fffcf5a789d6.pdfIn PDF document text
    • https://cdn.sqhk.co/padezeda/Giciqja/the_whipping_boy_questions.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464852/normal_5ffac43314a09.pdfIn PDF document text
    • https://cdn.sqhk.co/sirepajaku/hejhzjb/chapters_interactive_stories_redemption_code_june_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/mujowofapubi/ibMhcid/island_village_minecraft_seed.pdfIn PDF document text
    • https://cdn.sqhk.co/rorezina/hYkhg4l/jisibutades.pdfIn PDF document text
    • https://cdn.sqhk.co/puxedimuwo/jibcjbE/nejubawapodomul.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/fc936551-8f33-4548-985c-6baa6fa52f29/best_game_maker_studio_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/tidigudetefumof/23537678467.pdfIn PDF document text
    • https://s3.amazonaws.com/vesubodufisi/pubunuzobibunobiro.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/information_of_cupuacu_fruit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a09eaf24-5cd8-4a28-ae7c-f0c328773aaf/3713295456.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1deb508a-f384-4626-94c0-dc50e843a107/ns-str514_fm_antenna.pdfIn PDF document text
    • http://besafetusupug.atwebpages.com/narrative_writing_graphic_organizer_2nd_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e44dc016-7010-4bd6-8be8-5f4d9b75f381/how_to_use_oxygen_machine_at_home.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/23288042585.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_off0000e210.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE210 5288 bytes
SHA-256: 6594f0e6250b1f2e66682c69763ae3748e64876ea05b6a9571bbe3a20da3f7de
font_01_sfnt_off0000f3e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3E7 9736 bytes
SHA-256: d8b69d712079ea34e3dd230d77437eb3967589f2a02561e866895007968492db

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