Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bf9f49e21ab6b9…

MALICIOUS

PDF

70.5 KB Created: 2021-02-14 09:37:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8999410545c4154d2e7118c2d1500b24 SHA-1: ea264c26361bc58636df306ae75fa3068f2ce8e2 SHA-256: 72bf9f49e21ab6b97e632168adeace30e6a1777703bf5eaa078aa3f0218dbcd6
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wix?keyword=1800s+music+genres PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4409098/normal_602302915dd63.pdfIn PDF document text
    • http://lijaziba.22web.org/sizotegozuvoforotowa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408989/normal_601cf806d6ba5.pdfIn PDF document text
    • http://lnstagramverifiedbadge-form.com/tap_titans_2_book_of_shadows3pwrr.pdfIn PDF document text
    • http://bestpriceforukraine.xyz/86755288878rfzkl.pdfIn PDF document text
    • http://gatorama.space/concha_ear_deformityytgyu.pdfIn PDF document text
    • http://groshyk.site/wijejimub9rfk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491155/normal_5fe44b40811df.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/toniseligiwuzux/single_bed_valance_sheet_argos.pdfIn PDF document text
    • http://bizaludewop.epizy.com/detodigifumusiv.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/aristoteles_gran_etica.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/49832707431.pdfIn PDF document text
    • https://s3.amazonaws.com/xabalaru/adverb_of_time_manner_and_place_worksheets.pdfIn PDF document text
    • http://deroxemonak.epizy.com/august_alsina_testimony.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBC4 4864 bytes
SHA-256: 120b19a964d23cc440a2e90a022a4bfad7eb4c3b3e711db4bcd10b0e3ab96ca6
font_01_sfnt_off0000dc1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC1E 10352 bytes
SHA-256: c0c6c8eecb58e17e15331fc4a435cc93193605a2cd818dfe374b46a071d1884f
font_02_sfnt_off0000ff83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF83 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f