Malicious PDF — malware analysis report

Static analysis result for SHA-256 011fe947c7e39e94…

MALICIOUS

PDF

63.4 KB Created: 2020-11-11 02:58:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: be79239d92b85cf2b3d3180410cbdb3e SHA-1: 1572fd4f1b23d3917f60f133b7673c9d21da6076 SHA-256: 011fe947c7e39e9420d46a083e3503199f919dadc092efa46febdb96f33c2927
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://traffine.ru/123?keyword=no+thai+kerrytown+delivery PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366308/normal_5f8743689b72f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378165/normal_5f8aaf26e2a16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408195/normal_5f9bdb3e7955a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443354/normal_5faa60a81397f.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/dixaleko/download_berlitz_english_course.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/rbi_grade_b_2019_notification.pdfIn PDF document text
    • https://s3.amazonaws.com/gedesisumi/structuralism_vs_functionalism_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/41405556081.pdfIn PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/email_elite_academy_biz.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/ultimate_broadway_fake_book_4th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/watajive/82121055850.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_off0000bcd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCD9 5020 bytes
SHA-256: d677e48f335474d8312e296b6d002d6454e959bb6d2f0d11c54bf89630797096
font_01_sfnt_off0000ce02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE02 10268 bytes
SHA-256: 702279986cbd4eeb3db2549b50ee173adab479b2740abf2e8af6fd37ddec92af

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