Malicious PDF — malware analysis report

Static analysis result for SHA-256 d111f7d251986922…

MALICIOUS

PDF

77.6 KB Created: 2021-04-25 15:21:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 23b7fec662ce5e29881273cf573104d5 SHA-1: 59e8e1d3b0b63c019f9b713c86b8e5392394735c SHA-256: d111f7d25198692212aab8983a3287bbffdcc5c03bfa197342c81dba41d23274
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://ponafet.ru/strik?utm_term=self+leadership+and+the+one+minute+manager+book+review PDF link annotation
    • http://bovujiv.22web.org/luditakegiwukeveden.pdfIn PDF document text
    • https://cdn.sqhk.co/tabewinudeka/ibhayhi/tabusufurawuzutizaduji.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453556/normal_6053431b568a6.pdfIn PDF document text
    • https://cdn.sqhk.co/nawakema/Xid2egh/namosopatixowedoxafolotu.pdfIn PDF document text
    • http://perakaganiw.iblogger.org/bizubatufopakuru.pdfIn PDF document text
    • https://cdn.sqhk.co/xajevedu/gQ3icLo/falukojarozuwed.pdfIn PDF document text
    • https://cdn.sqhk.co/weteroliwo/jMghnhe/bake_it_better_books.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445321/normal_5fff9b2406925.pdfIn PDF document text
    • https://cdn.sqhk.co/piwojosexaja/n4kfjiT/xarexize.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374963/normal_604e34dab3b6b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tiwufuwivuvuf.epizy.com/79465832480.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93efd81d-93d2-4b51-a12f-bcee3693c2e4/57110769658.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bc3c856-1542-47a9-8833-7895cb786b97/23539789185.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22899f39-6afc-4810-9cf5-5c120566071a/titulos_de_credito_libro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb7ebad8-4f05-45a9-a5b0-ac5935e4efc2/characteristics_and_examples_of_transformational_leadership_in_nursing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e32b9c54-9b7c-4ff3-a185-d6912a21ad52/asus_p8z77-v_deluxe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65e15fdc-773e-41d3-9e12-d5bd5575a201/wimumodewaminim.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_off0000f0ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0AD 5916 bytes
SHA-256: 2a3ca8423f318f19e342b24c4340cc5deb11717d4da1a391ffd1dc5c903cba57
font_01_sfnt_off000104b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104B5 10664 bytes
SHA-256: bbe58c4fd93db9062ef8c36f0f6fdad25f8aea837d6163be4bec7e0a1f77e942

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