Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecd09d24f0976a4a…

MALICIOUS

PDF

72.3 KB Created: 2021-03-10 02:59:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 30682f0820b8cf6747427c672628a8b4 SHA-1: bd2bdf2bac0547d5e2be2c941ef19e5f420f2acc SHA-256: ecd09d24f0976a4a0fcf9e2d34e24e420b874d010b8757feebebcc60435f3b03
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://druttle.ru/wix?keyword=algebra+with+pizzazz+books+never+written+page+127 PDF link annotation
    • https://digakope.weebly.com/uploads/1/3/5/9/135974251/9003e721.pdfIn PDF document text
    • https://fatitabo.weebly.com/uploads/1/3/4/7/134757356/7947596.pdfIn PDF document text
    • https://dixufewopirar.weebly.com/uploads/1/3/0/7/130775961/fijifefidebedal.pdfIn PDF document text
    • http://wotegop.22web.org/zelomibibumagifizeg.pdfIn PDF document text
    • http://fupuwage.22web.org/47903728253.pdfIn PDF document text
    • https://kigumafu.weebly.com/uploads/1/3/4/1/134131380/lusidamubasa_rugaf_walijipenafow_soxivanejeguruj.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/a5eb72bf-ada4-4151-ba9e-e29ab5b47fb1/rupedesenuvawigafuki.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/baixar_livros_infantil_em_ingles.pdfIn PDF document text
    • https://s3.amazonaws.com/tugabijenovili/fema_is-_700b_test_answers.pdfIn PDF document text
    • https://a804c8a8-fdf7-4fba-b19b-c23aecc29597.filesusr.com/ugd/a7074a_6e816c816d4a4e818c5e435ff4abc8c4.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dotivaf/mirifisenazidobese.pdfIn PDF document text
    • https://01dc7cc6-b8ed-446e-8cc8-1ad78882ed38.filesusr.com/ugd/e23fbb_ed1eb4591ef3491fb436eb9313c5d5c8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/sejebeminoz.pdfIn PDF document text
    • https://s3.amazonaws.com/gupojakami/the_appraisal_of_real_estate_14th_edition_online_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/burnout_racing_game_free_for_pc.pdfIn PDF document text
    • https://f815f12b-539f-4060-8ed9-abd2caada31b.filesusr.com/ugd/ceb2e8_606abbd60e5a4f208a254877ed1ad75f.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c3e86c0-b859-4377-b8c5-c3d83d166261/sotupuximufibilofixixava.pdfIn PDF document text
    • http://nigabosepa.epizy.com/bhojpuri_gana_song_2018.pdfIn PDF document text
    • https://2eda13a9-9e0f-47dd-bbfa-a9a5028a3314.filesusr.com/ugd/61c57f_7e5e655357b64068a172af64801078c7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xuzed/diary_of_a_wimpy_kid_long_haul_full_movie_watch_online_free.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_off0000de4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE4E 5740 bytes
SHA-256: bb8ebdf6987417d4587b550854dcf004d87778ba31aa5b42b6e0f239efc2c865
font_01_sfnt_off0000f202.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF202 9740 bytes
SHA-256: fc9c9c45f8a3dfd39baa365d8fa613079df32cbec54fac00a37d3a5c2cfcf7fe

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