Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e497557eb6fc2e2…

MALICIOUS

PDF

73.4 KB Created: 2021-02-13 09:59:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e61d1f513b5a8d61c88ba18a8e6aa22a SHA-1: edc545d27310824a0e39e18e93031771357ada7e SHA-256: 8e497557eb6fc2e2d2c285e22258ddae3f347263dac758affc7f7e50f5d0ec6a
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://maypoin.ru/123?utm_term=morning+thunder+tea+seinfeld PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4450244/normal_5ff1699b630f2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388835/normal_5fe25972d42e7.pdfIn PDF document text
    • http://yoptan.space/real_moto_rider_racing_hack_apkkyb9o.pdfIn PDF document text
    • http://connexion-amelii.xyz/86145806877lnxkq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464852/normal_6014be3436dbd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499999/normal_5ff0d6879d6ee.pdfIn PDF document text
    • http://dompodklyuch.com/549749382466tyvn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401703/normal_5fd7a769a55f4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464297/normal_5fdfdf8857d2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379844/normal_601af28693bf1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412573/normal_5fda8933f23df.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383449/normal_5feaff34b18f3.pdfIn PDF document text
    • http://detonicufficiale.website/transparent_screen_appamef7.pdfIn PDF document text
    • http://tokio-2020.fun/26008752572odowh.pdfIn PDF document text
    • http://porn77.design/vigepuxarejun8n5vt.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/desekusoxi/91740579839.pdfIn PDF document text
    • https://s3.amazonaws.com/dofufiri/cb_background_full_hd_1080p.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_off0000e341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE341 5176 bytes
SHA-256: 3704d66931def08722116efe0a050a4547f231e428c53cdd55377b7521fd1554
font_01_sfnt_off0000f4e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E3 10464 bytes
SHA-256: f089bee69f832294bea92d100a107e8ff1dd966f3e77ef7e876b55bb9a57d81c

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