Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d347bb5b5a9a2ba…

MALICIOUS

PDF

95.6 KB Created: 2021-03-22 23:05:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 11cd58ec48c57da999c4c20683b2d13d SHA-1: 505909badb499bd55244775cf5aaa4a0a8131575 SHA-256: 2d347bb5b5a9a2baa3be8df8df75dccf2baa6f988c03f07a49c98deb635ca236
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xezojetit.ru/award?keyword=obligations+and+contracts+by+hector+de+leon+free+pdf PDF link annotation
    • https://cdn.sqhk.co/disumuneriva/hejd6ab/4_pics_1_word_photo_album.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365624/normal_60165c3ca4a5a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422148/normal_5fc5ef544784c.pdfIn PDF document text
    • https://cdn.sqhk.co/zubafena/igji8P8/tudoxusemafakiremevoporiw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392658/normal_5fe0f5908745e.pdfIn PDF document text
    • http://nibajafij.medianewsonline.com/farikojemijafob.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369518/normal_60319c81682c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369783/normal_602d61674a7b9.pdfIn PDF document text
    • https://cdn.sqhk.co/bewewojiwo/3gd5hjS/joxewaxisilunotobozibo.pdfIn PDF document text
    • https://cdn.sqhk.co/fusozuwalas/B9uNie8/jabikonatunogafuvapin.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/9a03e834-6815-4cf0-9b07-3ff34ada72f7/how_to_print_network_configuration_page_on_zebra_gk420d.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b24300c3-41cb-48b1-8504-a9f0836fb9e9/maximum_ride_books_manga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/026ac227-5877-4ffa-a4a9-381a23d42a57/ledatidizuxelupiges.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9324565-9b86-404a-a810-06d805cb2cc7/sex_coloring_book_amazon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad622c84-b335-494a-9853-6659073219b6/garasufupimupabupekiripi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5141397-8c3a-4d01-a08d-8795efa78600/lenovo_t420_price_in_uae.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd6127b3-ad79-4699-b50a-f71f6b6eadce/10641978757.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77469954-2bb5-479f-9440-92570aeb4124/idylis_air_purifier_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61adb18c-1b60-4dff-9e4a-21ef66bf6fd0/research_paper_outline_format_apa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8b3d739-5a6a-4432-bca5-a70827c83a59/green_dolphin_street_movie_plot.pdfIn PDF document text
    • http://puribisipup.atwebpages.com/entrepreneur_usa_magazine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11a6b1e8-24d8-44cc-9431-d0f2f39ea321/fowesisororafixus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9de72e75-237b-41c8-ab7e-cb088d528d66/maytag_dishwasher_repair_control_panel.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011c41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C41 5688 bytes
SHA-256: 2b4f309385c17a51ab2e09e9335abaae34946f953a19c94672ae5e307cccc5e8
font_01_sfnt_off00012f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F9A 12468 bytes
SHA-256: 500e37f4a1720602f5baf9ca6b8589e07d1b84282acc2b5c2e89d58f15bf516c
font_02_sfnt_off0001596c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1596C 16092 bytes
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848

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