Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e565e8d9b2ee872…

MALICIOUS

PDF

92.9 KB Created: 2021-04-06 07:39:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 2f3026a7115cb5c4f4177b04debc5962 SHA-1: 577be02545c64f367103e187535ca35b15d13236 SHA-256: 5e565e8d9b2ee87295a343a92e0757720e5c3beceead90fb9b871b508659fcc8
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 0.9998

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://xajibur.ru/award?keyword=applied+medical+anthropology+pdf PDF link annotation
    • http://juilopkiretlo.ru/top_athletic_apparel_companiesi2zsv.pdfIn PDF document text
    • https://cdn.sqhk.co/jeforije/eVYjdih/playstation_4_walmart_mexico.pdfIn PDF document text
    • http://maykistore.ru/fononusowubizuloxidu2jbzi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409243/normal_5fe0dba15da68.pdfIn PDF document text
    • http://bigpleasure.ru/mujelitiziwegijixugutryjy.pdfIn PDF document text
    • https://cdn.sqhk.co/vijukifezu/ibjhevi/strike_team_hydra_gameplay.pdfIn PDF document text
    • https://cdn.sqhk.co/donaxewon/ehdYlhi/share_website_on_twitter.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379387/normal_5feb2a2f4169d.pdfIn PDF document text
    • https://cdn.sqhk.co/rapovixovuti/KjiQ8he/music_70s_disco.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/96227020246.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52c59a05-4ec0-43c7-b3f1-ee3ae1c243bf/principales_problemas_economicos_de_mexico.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/angular_template_driven_form_reset.pdfIn PDF document text
    • https://s3.amazonaws.com/pezofut/shopee_apk_file.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/55834242405.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bb1d9bf-d22a-4b3e-b959-c3beea8038dc/book_24_hours.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/idsa_guidelines_catheter_associated_uti.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/rajug.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/stalker_call_of_pripyat_weapon_upgrade_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3049863-f883-4b1f-a47c-cb018f02d46a/57178422229.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_off00012dce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DCE 5480 bytes
SHA-256: ebc147b321e711ca7709f48c3fd98b74fba12597acf6103ad2aa04bd2497738e
font_01_sfnt_off00014054.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14054 11780 bytes
SHA-256: 16ff17b56ee912d7d6d47233ba6f3916a5dbfd082064829781a44259f306d9c7

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