Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d2d6e3d901ca27c…

MALICIOUS

PDF

72.3 KB Created: 2021-05-11 01:56:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1f1c2d3adf1a63651470b8b214f8387c SHA-1: 17e900532d2c96bf9ea6fd577e370cab14333dde SHA-256: 1d2d6e3d901ca27c402b68e144397c88b29a78e781b29843c5c2ed5e5e52a805
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 0.9997

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://soxebez.ru/strik?utm_term=the+crucible+act+3+vocabulary+warm+up+exercises+answer+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4410731/normal_6056561fbbf84.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373259/normal_5fed01e063bcf.pdfIn PDF document text
    • http://boomerangoo.site/denokafaz8lmfe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449395/normal_5fdaff9937085.pdfIn PDF document text
    • http://airbin.top/c13_nmr_spectroscopy_noteswsdsv.pdfIn PDF document text
    • http://vozivovog.scienceontheweb.net/mexiwegujuvifulinorumi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503050/normal_602481b1b370f.pdfIn PDF document text
    • http://astropsychology.website/78386623386jb51k.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/sobaketemu/afm_microscopy.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/adobe_after_effects_logo_templates_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cdc656c-2164-48ac-a535-78fd37440797/37306614039.pdfIn PDF document text
    • http://jujobope.atwebpages.com/58834944199.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/babelazutoze.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/can_you_get_pals_certification_online.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/wazozazanegabutobelorugo.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/72501446197.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3412989-9c59-430a-804e-8d21efe04461/kitab_ruqyah_syariah.pdfIn PDF document text
    • http://lobopekogolo.onlinewebshop.net/apics_cpim_modules.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/pejafibalow.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/webinar_autocad_civil_3d_tutorials_for_beginners.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_off0000ceb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEB4 5696 bytes
SHA-256: 1d0769f69e76cb8072e170b8137fb5d37bbbd37e280e18420cf1126af9d93dd7
font_01_sfnt_off0000e200.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE200 10348 bytes
SHA-256: 6f75586f06b5071cd057f8b077987201ec8c59de40620e90add8508e44a6506f
font_02_sfnt_off00010547.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10547 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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