Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b71d4a12241e95d…

MALICIOUS

PDF

61.8 KB Created: 2020-12-02 19:58:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 579ad4cc7d7ea64e30915bdcb151bc7a SHA-1: 9b640cbb4638a4918e78434fd3e0834cdec2e527 SHA-256: 8b71d4a12241e95d8fe3de0c4539a99786f984c93d623aa4ce7d8e27c5d87df6
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 0.9995

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://traffnew.ru/123?utm_term=best+buy+upright+freezer+insignia PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366311/normal_5f87401aee3d2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd2b39852d8c0c4e234435/1606232890147/geximifegizoxade.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbffea5239b0722912c2f3a/t/5fc0d976e18c5c478e1bd286/1606474103374/therapeutic_crisis_intervention_videos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc14c209-62ca-49b2-8c7b-b3ec96c548a8/3212492441.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5d30b7848ba205d3a93a9/t/5fc6962618e72e5fdbbe6d5a/1606850088569/funny_40th_birthday_cake_ideas_for_her.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc294961452f90b7fefeff3/t/5fc47a9e3c6ccf69f3eea1db/1606711966392/kuloluburipawosutobasuzuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e9831ab-5d00-44e6-b200-2b75f762f204/new_italian_restaurant_in_windsor_ct.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/2471326968.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8bfeb4d-01ab-4304-aa2c-7e84bfd3a5c5/55712594920.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3928d996-d443-4d57-b68d-67bd828b02db/bapapinoxolubegedap.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd3329b58c5c5e3914f744/1606234921995/gangstar_vegas_5_apk_mod.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe00ba7acac6192a86f395/1606287547339/titunalitafirenepo.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB389 5472 bytes
SHA-256: 7379ce5de7dbf0cdb976358e7cc5977e361d06a888f0c61236903ba2595e1ab3
font_01_sfnt_off0000c630.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC630 10612 bytes
SHA-256: e340f629de28f4205ca1afbfd952f7a61cb09586a095babec7e47097166a0d7d

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