Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cee9daaf449a3ea…

MALICIOUS

PDF

74.2 KB Created: 2021-03-16 09:22:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1acc4a2e9b7d3c86b2664a163d61aa05 SHA-1: 5dcb7b11927b990e991731fa747338f16b8bf056 SHA-256: 0cee9daaf449a3ea7e70ef410f426dfb2e3d82246a09ecc099ae53dce51f2b25
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-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://dafemum.ru/award?keyword=contemporary+behavior+therapy+6th+edition+pdf+free PDF link annotation
    • http://ig-copyrighthelpcenter.com/sears_catalog_house_kit38k0i.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411717/normal_5fe296de2b643.pdfIn PDF document text
    • http://life-news.tech/24289856926fzq8n.pdfIn PDF document text
    • http://navaram.online/the_monkey_business_illusion_free_download04c8g.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443325/normal_5fd2889acb66b.pdfIn PDF document text
    • http://sellamorem.com/sanogutiroxudosesowegab846h.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461483/normal_6030154b3d79a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456389/normal_5fe3df132f952.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/94db66ed-e0ab-45ef-b1ec-bce5cdde45d7/60965775291.pdfIn PDF document text
    • https://s3.amazonaws.com/pajeriramal/resumen_del_principe_de_maquiavelo_por_capitulos.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/implant_direct_guided_handle_kit_video.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84f45c29-b51e-49c9-aff4-a80867673fc3/29182442543.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71b7dd0a-5c78-46de-8bd1-2f2d0521312e/sutagawusobapokesiwelo.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/64886667971.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/ma_admission_form_punjab_university_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/christmas_festival_clarinet_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/10930349685.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/asphalt_8_cho_pc_full_crack.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_off0000cc8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC8A 5432 bytes
SHA-256: b2f2b70ee58af17742bb1196fe79de210850850e1e6bb3d112c0bdc2e6f30a77
font_01_sfnt_off0000dee2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE2 10880 bytes
SHA-256: f8dc13ff742b63e068dad4c9f2fbf519dcaced375878aa62f4f41a3463fce8e8
font_02_sfnt_off0001045f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1045F 16084 bytes
SHA-256: 3dd6252bb62cdcc21e2b76bdeb68ba6c8db9c2d08edae94764e010183c5b1848

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