Malicious PDF — malware analysis report

Static analysis result for SHA-256 78258189d9181efa…

MALICIOUS

PDF

70.1 KB Created: 2020-11-18 19:04:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 914312e0c3eb4dca99e8d69c6e53d2c6 SHA-1: 28959e0e596c2f3dc2b5d96bdf862f03ea685ca3 SHA-256: 78258189d9181efae25aea3be2dc02bff810f754971b0250410b7bc4715325ef
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://traffmen.ru/123?utm_term=your+client+has+issued+a+malformed+or+illegal+request+google+maps In PDF document text
    • https://sobaxijuxoje.weebly.com/uploads/1/3/4/2/134235367/zofogegude-jakupuperevuge-fusujuni-fuvilevako.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366018/normal_5fa924cf4a3a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369496/normal_5f881e8a79927.pdfIn PDF document text
    • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/zafaginega-pukaxu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476943/normal_5faec862b44e4.pdfIn PDF document text
    • https://fomomeku.weebly.com/uploads/1/3/2/7/132712435/3787099.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478923/normal_5faec7dcc65ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369522/normal_5f88c20a72f58.pdfIn PDF document text
    • https://mimevomakiket.weebly.com/uploads/1/3/4/6/134693464/2c810cd0afa6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383131/normal_5f9098f9e2b89.pdfIn PDF document text
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/popelem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420907/normal_5f987b8f310f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494866/normal_5fb2555e16013.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/nosepevozux/bowezamotavepujunaj.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/31682539232.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/office_2019_professional_plus_iso.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_off0000c792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC792 5536 bytes
SHA-256: 98bf486040106bafef85d42385ef18379e705561ebfd88b7ff67dbc6e118f218
font_01_sfnt_off0000da2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA2E 10156 bytes
SHA-256: b6a0fc631ac238305e7e6316843b6c136b3e6e434e47fecf1086b802af7312ad
font_02_sfnt_off0000fcde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCDE 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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