Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cae17f30a2a872b…

MALICIOUS

PDF

76.1 KB Created: 2021-03-08 12:42:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3e88df6dd9cab402db1f44a7a65d060d SHA-1: 51b23070d37e80b03a11668d3b3f32ab917a29a5 SHA-256: 0cae17f30a2a872b53483c206644d66063fff6da8f2bca8737ca32dc6dde1e21
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/award?keyword=ph%25E1%25BA%25A7n+m%25E1%25BB%2581m+chuy%25E1%25BB%2583n+%25C4%2591%25E1%25BB%2595i+%25C4%2591%25E1%25BB%258Bnh+d%25E1%25BA%25A1ng+%25E1%25BA%25A3nh+sang+pdf PDF link annotation
    • http://helpverifedbadges.com/cookery_classes_ielts_answerzmsoo.pdfIn PDF document text
    • http://muzibatixabu.mypressonline.com/felidavenirokafulenipizo.pdfIn PDF document text
    • http://milanomoda-italy.site/what_is_the_message_of_persepolisdi6ye.pdfIn PDF document text
    • http://rijigikesezaga.mypressonline.com/how_to_play_settlers_of_catan_cities_and_knights.pdfIn PDF document text
    • http://lamakexo.scienceontheweb.net/how_to_replace_the_igniter_on_a_furnace.pdfIn PDF document text
    • http://najisemure.medianewsonline.com/how_does_vacuum_tube_work.pdfIn PDF document text
    • http://lemafesopeposuz.mywebcommunity.org/74980262044.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/e460fcd8-5340-43e6-9b44-218b593ab935/toro_electric_weed_eater_string_size.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6073e2e9-f07c-472a-b73a-6392a299e5e2/kitofijutuxapaji.pdfIn PDF document text
    • https://fa886832-b9e3-4ce5-a98c-97da2614721f.filesusr.com/ugd/9f8050_c387043a1d214764a269356be710a324.pdf?index=trueIn PDF document text
    • https://aefbb2f1-1cfc-4a48-aab2-d72547d84173.filesusr.com/ugd/2f3ac6_a360df0a1c204d9aa0c755822643b671.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/df84786a-7c34-4cf0-9ffb-bf3cd7a9799c/how_to_study_for_connecticut_permit_test.pdfIn PDF document text
    • http://bugazepoja.onlinewebshop.net/84323342728.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0187a8ff-08ea-435d-8a7a-e94b3298fc1b/what_is_an_inbreeding_coefficient.pdfIn PDF document text
    • https://dab7fb03-f2af-4a8e-9cb9-31de623bedb3.filesusr.com/ugd/58b596_347d5336dab7414b86c6274f2ec07b14.pdf?index=trueIn PDF document text
    • http://vowojuxibaxo.myartsonline.com/xekejakolovemetagit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7219780-5603-491c-82e0-310f72991b03/craftsman_digital_multimeter_82140_fuses.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9324505-5bae-43a7-a582-beeb7925dcbd/fifenitopuze.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_off0000db02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB02 7092 bytes
SHA-256: b12b82b7c50bdd1087c4fa54eb453ad84645a3b3c20180a0eb670e2a016b0bee
font_01_sfnt_off0000f006.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF006 22296 bytes
SHA-256: 17e51dfefbd0265d68c19fa45a9a764f1d499a5509a3b1e825a27dba4b1223be

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