Malicious PDF — malware analysis report

Static analysis result for SHA-256 4785b2395fd8d7c5…

MALICIOUS

PDF

280.0 KB Created: 2021-12-22 09:17:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: bf06decd22382d4aae6fd2255c701526 SHA-1: 4432efea34e17e9691151b9ec0dbe01f75981deb SHA-256: 4785b2395fd8d7c5aaf08a64e13b28e99fa2eafdda6288e3b800f15a4593ae4e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7944

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 http://orvositudasbazis.eu/images/upload/file/woferezokovolu.pdf In PDF document text
    • http://www.waheedullahauto.ae/admin/kcfinder/upload/files/60760153428.pdfIn PDF document text
    • http://ancheng-medical.com/uploadfile/files/15683048869.pdfIn PDF document text
    • https://o-dance.dacola.com/upload/files/giges.pdfIn PDF document text
    • https://nesselaarbestratingen.nl/plaatjes/file/wajetonujuginesix.pdfIn PDF document text
    • http://afghansolar.com/userfiles/file/dofetulex.pdfIn PDF document text
    • http://tinhdauvietnam.vn/upload/files/pazawajidudakufovanisasu.pdfIn PDF document text
    • http://phutungvespaco.com/luutru/files/62703397205.pdfIn PDF document text
    • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d35deeafc2---totukidixo.pdfIn PDF document text
    • https://fotojursa.cz/userfiles/file/temarelud.pdfIn PDF document text
    • http://tokyoracing.hu/userfiles/file/16115806930.pdfIn PDF document text
    • https://nieruchomosciprzetargi.pl/files/file/goribivonemunilukevon.pdfIn PDF document text
    • http://biomax.shop/filespath/files/20211014114447.pdfIn PDF document text
    • https://domilot.com/uploader/files/dagajape.pdfIn PDF document text
    • https://impulsa.mantareys.net/uploads/plantillas/files/80254361331.pdfIn PDF document text
    • http://al-bandak.com/userfiles/file/naxiradufudixazip.pdfIn PDF document text
    • http://kuehllawpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zinerusufovudunurabo.pdfIn PDF document text
    • http://workcoop.org/fckeditor/userimages/file/20211003025713.pdfIn PDF document text
    • https://ykitraders.com/UserFiles/file/guvesag.pdfIn PDF document text
    • http://ecole-belair.com/ecole/file/48091290756.pdfIn PDF document text
    • http://orderkai.com/uploads/files/6424096105.pdfIn PDF document text
    • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ab4d5bcd128---gasefigefugetupad.pdfIn PDF document text
    • http://lesen-und-schenken.de/userfiles/files/35833661191.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/vItLtdF7Pec/uplcv?utm_term=building+full+hd+imagesPDF link annotation
    • 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_off0003f0fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F0FB 10636 bytes
SHA-256: 0cb847a87d1c76b1538798a571ce0b2e4be39ec8ed864baba7e6f31369b523df
font_01_sfnt_off000408da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x408DA 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00041f79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41F79 19432 bytes
SHA-256: eff1bac13e279a0e839e05460f91cbf2d305630a2ea2a535aee208bd1b7d50ee

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