Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9a489feaa3fd88d…

MALICIOUS

PDF

96.5 KB Created: 2021-01-05 09:45:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 2b17d57da7382c4716573e77f5cd3ee7 SHA-1: b4bd043989cc874a08276c1465e7550446c8ae9f SHA-256: e9a489feaa3fd88dded42751349c405d017e225635f05b70a1b9fa9e7741a912
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://traffset.ru/123?utm_term=biblical+poetry+examples PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4390681/normal_5fbc6a890f5fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424331/normal_5f9ed05350353.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451932/normal_5fe3501f27e38.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382784/normal_5f9c7e5526556.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492257/normal_5fe2436c6651b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374976/normal_5fc90deb046f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375351/normal_5fb600e0be871.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/e6287af2-d233-4daf-ab39-9ea6cdaf0cff/rajevifakogixozajegap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb900c2f-8ab5-4202-b611-82098ae2b7c6/5491562249.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/893fa29b-169f-4abb-8bea-8d468d718ea3/2000_audi_a6_4.2_quattro_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3744e226-ea19-4d07-81d2-fd7e6ff72616/bines.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/accountancy_book_class_12.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/90281571333.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/44141508143.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2456eb01-601e-4e8f-bd4c-a3ba50f28316/broward_school_calendar_2017_18.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_off00013c9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C9D 5440 bytes
SHA-256: 0ce3add091e9873bfe3ded2a3220926aed7595bd5489b8d6da1d5cb77e2cf97a
font_01_sfnt_off00014f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14F10 11928 bytes
SHA-256: b8ee70f280b81c91233e7f6601e830b9a9c2a6c06dba0872182e672c36e2fc58

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