Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad38d0e9f229af4…

MALICIOUS

PDF

66.1 KB Created: 2020-11-22 11:43:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-20
MD5: c43bca6f868fee0d588cbc9698c75fdc SHA-1: 2e77499035eafbd1918cebaea8eac82164277a95 SHA-256: 9ad38d0e9f229af420c73a6503e6b05d4ca4a00d6e4e74e6b2f7e543d14580a2
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://cctraff.ru/123?utm_term=g+shock+multiband+6+tough+solar+user+manual In PDF document text
    • https://s3.amazonaws.com/fidefofudi/warrant_of_arrest_format.pdfIn PDF document text
    • https://wajogivetiwi.weebly.com/uploads/1/3/4/3/134322864/damililebibora.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/manef.pdfIn PDF document text
    • https://sonuboguf.weebly.com/uploads/1/3/4/3/134310015/murixaxedu_tubeviletijete_sorag_renexer.pdfIn PDF document text
    • https://pawikewam.weebly.com/uploads/1/3/4/4/134445239/1b785cc015.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/24851105624.pdfIn PDF document text
    • https://denijebif.weebly.com/uploads/1/3/4/5/134584122/wajolifaxa.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/njrotc_uniform_dress_blues.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/kagajuzuzolef.pdfIn PDF document text
    • https://muxoramosuzuveg.weebly.com/uploads/1/3/4/2/134266249/xavebinetebaje_tikun.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/garimexajojes.pdfIn PDF document text
    • https://xigodawi.weebly.com/uploads/1/3/4/4/134464905/sefovonufagawavibuwo.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000bc75.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000bc75.bin)
    • https://uploads.strikinglycdn.com/files/91dfcab1-f3f3-483f-84f8-669214c31216/cmo_para_abrir_versiones_futuras_de.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a6f0ff6-9bfc-4bb7-b59d-e1e04e1ce98e/72989254690.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 extracted file (font_00_sfnt_off0000bc75.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bc75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC75 5744 bytes
SHA-256: 495a25dd9ffd3c8d622eee1a13af2adfbdf022dcda49b836b2dd8f4ff8579c5f
font_01_sfnt_off0000cfd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFD4 12832 bytes
SHA-256: c463858c0448eca182c926cabea9b8fd14cad9092d2ecf84e9861e53a4b10319