Malicious PDF — malware analysis report

Static analysis result for SHA-256 07312f8c7dcc0851…

MALICIOUS

PDF

80.6 KB Created: 2021-03-22 13:40:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: aa3f29903bd057a15c3241446adc34c7 SHA-1: 1aaac0191d7f8ca999532ecbd162bb76e7ee10bd SHA-256: 07312f8c7dcc08515f0be173ddc99e40927f6112b1608665b03c8f69d363aa23
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://baarspo.ru/aws?utm_term=world+war+z+movie+trailer PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4423452/normal_5ffcb2286358d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421471/normal_601fe3da34c3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409403/normal_60274d3a87ba3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412570/normal_601833cf207d0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366357/normal_5ffb87eb0a029.pdfIn PDF document text
    • https://cdn.sqhk.co/pekebugus/jaozghy/odia_bharat_lila_hd_video.pdfIn PDF document text
    • https://cdn.sqhk.co/batumozi/dxeheia/butajixad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4505326/normal_5fe30e7cd2b5c.pdfIn PDF document text
    • https://cdn.sqhk.co/dedogupazib/jdVhbTe/vidilusofekutafodupo.pdfIn PDF document text
    • https://cdn.sqhk.co/menekilebuz/AhgGLja/jobaxisowa.pdfIn PDF document text
    • http://gekodejevotug.medianewsonline.com/53375291166.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417535/normal_6004d068210b2.pdfIn PDF document text
    • https://cdn.sqhk.co/fakupavod/ificiii/89402636368.pdfIn PDF document text
    • https://cdn.sqhk.co/sedazozesufu/6jbgjhh/dragon_quest_of_the_stars_review.pdfIn PDF document text
    • http://zarewubizeno.mywebcommunity.org/jeffrey_archer_a_quiver_full_of_arrows.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/sorogamat/submit_button_outside_form_angular_4.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/65678802931.pdfIn PDF document text
    • https://s3.amazonaws.com/neviwove/tax_free_wealth_book.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/ideal_gas_law_worksheet_carson_dellosa.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_off0000fda6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDA6 5008 bytes
SHA-256: 7e6b23408ab03eccef1d4e683e8b1311d3f180a9010884eb3878c5186b2dceaf
font_01_sfnt_off00010ebb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EBB 10840 bytes
SHA-256: b842db99df02b9918864b9c0947f5bd8ec048afd430da6a22e3b8befb705a770

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