Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d7f8509a883d915…

MALICIOUS

PDF

352.6 KB Created: 2023-05-28 21:26:17 +03:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 5.15.4) First seen: 2026-06-10
MD5: 9184921cfea489da2ff4c179d93997fb SHA-1: 17f8653bdfe8bc2f7171a9b6a8b7ed95c4ed98a0 SHA-256: 3d7f8509a883d9151754fc2b9498122fe73832018ec5eed61eaeb7c015473504
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9820

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://wuniz.yoyep.co.za/gdy?utm_term=the+red+bow+commonlit+answers PDF link annotation
    • http://www.bitstream.comIn PDF document text
    • https://img1.wsimg.com/blobby/go/d37a9b24-bc42-4cb1-ab3b-3d1b21b01aec/downloads/53749430684.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/671d8571-de15-47bb-8cd8-b624751dbe0e/downloads/nugibebosibelakafekamo.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/palavras_cruzadas_coquetel_para_imprimir.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/tinc_un_volca.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/d37a9b24-bc42-4cb1-ab3b-3d1b21b01aec/downloads/fuxivifixetasirinetojol.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/right_angled_triangle_worksheet.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/17224399634.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/d37a9b24-bc42-4cb1-ab3b-3d1b21b01aec/downloads/addisons_disease_in_dogs_merck_manual.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/94261963689.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/d37a9b24-bc42-4cb1-ab3b-3d1b21b01aec/downloads/majevubofibefefixojepif.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/671d8571-de15-47bb-8cd8-b624751dbe0e/downloads/38353822444.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/download_megaman_x_corrupted.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/d37a9b24-bc42-4cb1-ab3b-3d1b21b01aec/downloads/wing_chun_basic_techniques.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/37579363160.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/d37a9b24-bc42-4cb1-ab3b-3d1b21b01aec/downloads/55464837961.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/d37a9b24-bc42-4cb1-ab3b-3d1b21b01aec/downloads/befekaxixigogosufefozig.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/71083125980.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/671d8571-de15-47bb-8cd8-b624751dbe0e/downloads/70206734174.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000519a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x519A4 8964 bytes
SHA-256: 950f6d5bc6f0ae8aa39e3ea53c28c095ca40ead24d875b79dee641097bdebfe9
font_01_sfnt_off00052bd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52BD8 10680 bytes
SHA-256: 9b5346d32ac55a05faf0e149bd7833ee476c301869a83a7b397436010c470591
font_02_sfnt_off000545dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x545DC 17168 bytes
SHA-256: 5155546f0a40ffb3658e310c9f94ef09b6abbf4c196b1eab095cb928861b194b