Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea1b7ebeee867d8a…

MALICIOUS

PDF

79.7 KB Created: 2021-02-28 01:22:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: fd1d01cf2d632cf4b49a7635516d2c1a SHA-1: 1a9e455e88594eac64e0a1e19eaf5eff1d1f7c11 SHA-256: ea1b7ebeee867d8a4d7c6444002096fd26ff24774195445801944a23631f852b
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 0.9996

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://bologen.ru/wix?keyword=como+aprender+a+tocar+acordeon+en+el+celular PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4370541/normal_5fe032359894f.pdfIn PDF document text
    • https://cdn.sqhk.co/ratevusur/iaihbHx/pac_man_ball_game_free.pdfIn PDF document text
    • http://xexapitanegis.getenjoyment.net/69946668248.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370088/normal_5ff6b046d1ce3.pdfIn PDF document text
    • http://tibagisuminove.sportsontheweb.net/books_of_orhan_pamuk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387577/normal_60065173cb0dc.pdfIn PDF document text
    • http://korirojasutito.22web.org/metro_2034_book_english_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/mugegiduveb/FChczid/strike_force_mod_apk_unlimited_everything.pdfIn PDF document text
    • http://jokojujut.medianewsonline.com/can_i_use_a_dunkin_donuts_gift_card_online.pdfIn PDF document text
    • https://cdn.sqhk.co/wovupeni/lHiaPig/xatofigofenenomesokesu.pdfIn PDF document text
    • http://vanimerukaguto.scienceontheweb.net/how_to_change_the_date_on_a_citizen_eco_drive_watch.pdfIn PDF document text
    • https://cdn.sqhk.co/saligoliti/ig5hwgg/18776301210.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/lezopobigeza/61881844327.pdfIn PDF document text
    • http://gaxilitexu.onlinewebshop.net/kiwisukosaxugodujopup.pdfIn PDF document text
    • http://votemajaw.epizy.com/creative_professional_resume_templates_word_free.pdfIn PDF document text
    • https://s3.amazonaws.com/daxemo/46033959491.pdfIn PDF document text
    • http://guwaduroredidaj.rf.gd/manufacturing_consent_noam_chomsky_book_review.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/83962691079.pdfIn PDF document text
    • https://s3.amazonaws.com/wolawatin/lotolavowufumuso.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/algebra_word_problems_book_1.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/carriers_2009_full_movie.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e90a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE90A 4896 bytes
SHA-256: de6f134a2435bf77f87f90db66a259f14764958865d0134d4cbfc6afecfb5743
font_01_sfnt_off0000f995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF995 12208 bytes
SHA-256: 84e6c27824aba844b6e3b94cb75d7e180d4b89aff436579ff1c6f7a8c9dbd899
font_02_sfnt_off00012128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12128 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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