Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6512aa84382a1f…

MALICIOUS

PDF

409.7 KB Created: 2022-02-06 00:50:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 50a70a6ba47bb36ab8a9238ed339b0bd SHA-1: 0e06858a54f36ce84c6b3e1033844563bef9f9be SHA-256: 2b6512aa84382a1fee0fd95c0056bdd41155bdb6e3699e06fdba7de83a580d1e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8621

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://sunuf.co.za/XSRYdR1H?utm_term=activity+6+interpreting+graphs+of+functions+answers PDF link annotation
    • http://wsystem.sk/userfiles/files/27449621457.pdfIn PDF document text
    • https://sausalito.com/wysiwygfiles/file/tivapirenogemuwojun.pdfIn PDF document text
    • http://eternoohydro.com/d/files/31889871303.pdfIn PDF document text
    • http://geombiagioschettino.eu/userfiles/files/xenimafigogem.pdfIn PDF document text
    • http://tarnava.eu/user_images/file/gajuxumogutipelo.pdfIn PDF document text
    • https://vida.posilatko.cz/files/wswg/file/vemutimisagigevegezonevun.pdfIn PDF document text
    • http://geodez.com/pliki/file/50158260509.pdfIn PDF document text
    • https://atputasbazes.lv/images/userfiles/files/25167967784.pdfIn PDF document text
    • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/d200f02e2fe77b959f3d0c48ffe23475/rotitadimevevonaxiwelap.pdfIn PDF document text
    • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161031a1255dde---keziriruzo.pdfIn PDF document text
    • http://80tner.netsociality.com/upload/files/64526465948.pdfIn PDF document text
    • http://historia-bfured.hu/userfiles/file/rewanesubokoposozax.pdfIn PDF document text
    • http://rent-lease-no1.com/userfiles/file/20220110165833.pdfIn PDF document text
    • https://kocarbon.vn/luutru/files/bopozilivub.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005df81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF81 16084 bytes
SHA-256: 629677e45faedee601e08dfe5d93bed8cb2cbab2933fb40e48fc5543807047de
font_01_sfnt_off0005f4b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F4B7 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00060bd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60BD7 11228 bytes
SHA-256: 4c72634b3a7abd98d8a035ed17ed29e919f4e1f24f6e379aabba56c55f748213
font_03_sfnt_off0006263b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6263B 18760 bytes
SHA-256: 4eb771321a444c5c58c3141bbb51ec3363c064b9141597bc387b1db39a1d020c

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