Malicious PDF — malware analysis report

Static analysis result for SHA-256 2abecef002c95757…

MALICIOUS

PDF

70.7 KB Created: 2021-02-24 21:19:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 57824a42fe2b9d8563baad46f3d1955e SHA-1: b159629492c8f86ce0e3282b19df49c061e0054e SHA-256: 2abecef002c95757be1bb70e2ab323bcb9b495e0c2e44b47452a30bf7ae8d0b0
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://druttle.ru/wix?keyword=hacked+wii+u+for+sale PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4425238/normal_5fe938f0110f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379855/normal_5feddf1c8ede9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484815/normal_5fc5edc0e645d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379982/normal_5fd107c4d0505.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501193/normal_5fcf53b55991b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501791/normal_5fc74d08f2be5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404124/normal_60335e8a53cec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490132/normal_602da2e13ada6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366976/normal_6003859c3cbfb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bajokojukitipib.epizy.com/grade_6_math_nyc_performance_task_fall_benchmark.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/65492058190.pdfIn PDF document text
    • http://vanuzavabew.epizy.com/jumaromujop.pdfIn PDF document text
    • http://dunugamufaj.epizy.com/6214276907.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_off0000d8fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8FC 5132 bytes
SHA-256: 3c897671f2cb6cd6b6dcc464738df43c395f3bb91648b6035d44e1826b5c116c
font_01_sfnt_off0000ea97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA97 10316 bytes
SHA-256: bf181da99c515ee74ea01360e0fa7eba7c714299e93d9edb6f72b7d0b05c116e