Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0fcb36d1b112c22…

MALICIOUS

PDF

77.4 KB Created: 2021-03-18 02:13:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f0cfd528ab72d6ee060c311b8de46664 SHA-1: 5c29efab9437c6e5e3a3d196f609efca1d33dddd SHA-256: a0fcb36d1b112c22d9ca40539e2d2293da5aec79ebb4354e9d22db374b70c6cb
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://nipisod.ru/wix?keyword=jurassic+world+the+game+hack+2019 PDF link annotation
    • https://vuloxeresipagig.weebly.com/uploads/1/3/1/0/131070754/bazen-pitema.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471683/normal_5fc5cf6ed1612.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414679/normal_60050169d7c6e.pdfIn PDF document text
    • https://lomivemaj.weebly.com/uploads/1/3/0/7/130739076/joweraxak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464529/normal_6038b3b2995f8.pdfIn PDF document text
    • http://nomudepalak.medianewsonline.com/handel_minuet_in_g_minor_arr_wilhelm_kempff.pdfIn PDF document text
    • https://regasefes.weebly.com/uploads/1/3/1/8/131871592/visezulirubame_ginefinaj.pdfIn PDF document text
    • http://mujoxoluvisukid.getenjoyment.net/panasonic_cordless_phones_on_sale.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413718/normal_605159b0d2840.pdfIn PDF document text
    • https://jaxipalat.weebly.com/uploads/1/3/4/7/134746428/575005.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465000/normal_6034367982e64.pdfIn PDF document text
    • http://tofoxewesaxizuz.mywebcommunity.org/79153779702.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/jupudizadid/73512806560.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/66034774381.pdfIn PDF document text
    • http://xomutojekes.myartsonline.com/pune_detailed_map.pdfIn PDF document text
    • http://legokejapo.atwebpages.com/30034357332.pdfIn PDF document text
    • http://gazugitub.epizy.com/binomial_expansion_a_level.pdfIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/what_is_it_called_when_relatives_date.pdfIn PDF document text
    • http://mibesajaku.epizy.com/paluromovifev.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/anime_love_couple_wallpaper.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/kerner_report_conclusion.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_off0000e304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE304 5756 bytes
SHA-256: 1b4a23725862ef11778eedd354a5d1dbdbd3cba3bda1598ea2058d4cbf13821c
font_01_sfnt_off0000f6ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6AB 10484 bytes
SHA-256: aa1ac4c58baecbf17fd0f37d02f3146597059f7e3f4917346e472d3030a78a6e
font_02_sfnt_off00011a25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A25 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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