Malicious PDF — malware analysis report

Static analysis result for SHA-256 487217b706eec9ae…

MALICIOUS

PDF

75.3 KB Created: 2020-11-19 23:31:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: f45e69d651476fb968faa3b6b8cebdf9 SHA-1: ba0be2cc729ca4cd57d306410b3319f6421e727a SHA-256: 487217b706eec9ae912c220bc04d8283f475d14a310008573f0949b4d63213be
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 0.9994

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://traffine.ru/wb?keyword=cartoon%20sad%20song%20video%20free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4424040/normal_5fa497de814cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367287/normal_5f8b284abe6f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401691/normal_5f9f9911c11ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368756/normal_5f903d8b552a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366405/normal_5f90dc64f3828.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/70106388-ce83-44f8-bcab-6b72e478f407/51461735243.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0feffe5b-333c-4844-a888-be456be37dd8/dijofuto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83682704-3c98-477c-b51c-5b0b6eb185ec/luselininedabimuzifarapek.pdfIn PDF document text
    • https://s3.amazonaws.com/sixolose/lobewi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/160bf62a-197f-4959-82ee-92ad42c0b42d/hunt_locations_chult.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/986e9057-3dfe-4023-b3b8-18595c388d96/missing_books_of_the_bible_names.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb43ff8b-7fa9-42d4-a4f3-939f139e78c2/35931338578.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27c1e1dc-e624-4e05-8f64-5983a4c4e27b/gewapenixusinib.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB89 4912 bytes
SHA-256: 4061c69d862252a559114c18576fb81835fb0429a53dba586b3d66c5344630f0
font_01_sfnt_off0000ec54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC54 10840 bytes
SHA-256: 18b7e88edf6ad76dc13e00b38ae012059ef1e285d325e9dd2c6611891288fc66
font_02_sfnt_off000110be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110BE 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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