Malicious PDF — malware analysis report

Static analysis result for SHA-256 95817ad0c72ab725…

MALICIOUS

PDF

69.4 KB Created: 2021-01-11 05:41:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 2f0b3d4ee7f45f2e6039af11d737a6b6 SHA-1: 9145b44299cd1a309536fa948ef619d7d4e1d5f0 SHA-256: 95817ad0c72ab72588320660dc789da0c544f010df9096cf4c0ab7c8d2096bd2
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 0.9997

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://traffking.ru/123?utm_term=nantucket+cranberry+pie+gourmet+magazine PDF link annotation
    • https://site-1174183.mozfiles.com/files/1174183/vimusire.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490244/normal_5fae696a66d2a.pdfIn PDF document text
    • https://site-1179506.mozfiles.com/files/1179506/burolezemokotubisitu.pdfIn PDF document text
    • https://site-1178025.mozfiles.com/files/1178025/video_maker_video_editor_remove_background_apk.pdfIn PDF document text
    • https://site-1166067.mozfiles.com/files/1166067/fesusigeroj.pdfIn PDF document text
    • https://site-1171754.mozfiles.com/files/1171754/74120033184.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385850/normal_5f8e0e36ca49f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403673/normal_5f9c7c7e89aa6.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/kovozenamofox/besawuguvasig.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/nojinojujitugufipokov.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/dunodifazereno.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_off0000d20b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD20B 5368 bytes
SHA-256: d51f8c9e8a1fe77b5a632362a2619b6b3335163bcaeccd6ade0a3d526f326a88
font_01_sfnt_off0000e452.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE452 10648 bytes
SHA-256: fa1b8dbabad6cd0ce74db66660478c53472f417d3b18861f7814d8c6dfe14c38

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