Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebeb2062db1cc668…

MALICIOUS

PDF

65.3 KB Created: 2020-11-21 19:53:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: b8ea8759529dd3abeeb85eca2290fa11 SHA-1: 9b18af8e3897225cb0003bf5b60d7a643b412c2c SHA-256: ebeb2062db1cc668ca88362cfae042fa791929bc65d5d0a3aaebd7e951017859
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing indicating a malicious redirector link to 'https://gettraff.ru/123?utm_term=placerita+canyon+nature+center'. This URL is the primary indicator of malicious intent, likely serving as a lure for phishing or to download further malicious content. The ML classifier also strongly flagged this PDF as malicious.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/123?utm_term=placerita+canyon+nature+center In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379837/normal_5fb65ee3919fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449616/normal_5fb5a097b7b20.pdfIn PDF document text
    • https://mojipakubi.weebly.com/uploads/1/3/4/6/134679558/masudubudobazuf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393499/normal_5f90e521165c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470699/normal_5fab60d162e0e.pdfIn PDF document text
    • https://jobipidamefoji.weebly.com/uploads/1/3/4/6/134696246/xizakekumepinavup.pdfIn PDF document text
    • https://tokadasokavetim.weebly.com/uploads/1/3/4/6/134688198/rotav-zolalomawaku-juzilanimaso-garovofej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367279/normal_5fa2a9c930e65.pdfIn PDF document text
    • https://sisaseno.weebly.com/uploads/1/3/0/7/130776680/5eb2e5.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/lewuli/sekifupurazikilakapumimi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e29605fa-282e-4fe0-9ad4-60f6aacd46d6/venirewapevufifadur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5dc9ce7-d415-4f9c-b8db-9bd7643fa0c2/digogunu.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_off0000c50b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC50B 4716 bytes
SHA-256: 4a539f056410c4a47a24382c02f7dbd7df00dfc9a891d52bf260d09d1ff5b3c5
font_01_sfnt_off0000d52b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD52B 10488 bytes
SHA-256: af74fe6b2c99b39dc7305177dc0792af00aebd63c3daee0ab654b63397c84b5b

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