Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f3e9fb323eab27b…

MALICIOUS

PDF

508.5 KB Created: 2022-03-23 23:52:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: 6414b0f8726c3268011991dc907222dc SHA-1: b7cbb2fffef44d131436a581af8f0ffb886d44a6 SHA-256: 5f3e9fb323eab27b7b58d4ceb04aed9a28fce76ff50f6dafaec75f6e23c5fb46
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5856

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
  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://japanbizkorea.com/userData/ebizro_board/file/zipoxafugan.pdf In PDF document text
    • https://h1t-url12shio-turbo.com/contents/files/filamaloveluxudimadami.pdfIn PDF document text
    • http://jjkxmy.com/upload/files/202203061443216276.pdfIn PDF document text
    • http://siticondominiali.com/admin/data/files/files/xesuzuzibatepikumegiva.pdfIn PDF document text
    • http://reputesystems.com/app/webroot/uploads/files/8971035332.pdfIn PDF document text
    • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1623743feecf5d---66883540174.pdfIn PDF document text
    • https://bienenaktuell.com/sites/bienenaktuell.com/files/file/zijobojatesobujinikupilat.pdfIn PDF document text
    • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16230808f71463---bevarulufojobofagetapu.pdfIn PDF document text
    • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621fd4ae69710---66556473101.pdfIn PDF document text
    • http://www.littlebookofjohn.com/kcfinder/upload/files/sesotoxapuzujopukuvetitev.pdfIn PDF document text
    • https://obo.olsztynek.pl/assets/includes/kcfinder/upload/files/55982541954.pdfIn PDF document text
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/16207a6863915f---wufomexonovaripakawonezid.pdfIn PDF document text
    • https://guojigongcheng.com/userfiles/file/20220322205111_1409408503.pdfIn PDF document text
    • http://morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623a6e88ba022---10155158705.pdfIn PDF document text
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/162066d7e6ed5e---34437382206.pdfIn PDF document text
    • http://ieltsadd.ir/cache/fck_files/file/xaroxubafekad.pdfIn PDF document text
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620f7a6d27afd---fuzozuzila.pdfIn PDF document text
    • https://namphuctourist.com/userfiles/file/1963131041.pdfIn PDF document text
    • https://podar.co.za/XSRYdR1H?utm_term=the+book+of+indian+trees+pdfPDF link annotation
    • http://ci-tesco.com/kcfinder/upload/files/9585354810.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 extracted file (font_00_sfnt_off00077117.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00077117.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00077117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77117 10744 bytes
SHA-256: 498b4163ef00ef9fdb44dfe3161c92b882e379ea8930ba81f0f889696865e6e0
font_01_sfnt_off00078987.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78987 17120 bytes
SHA-256: cea2295efa657eb55baf64b594f8ddab18ca62fb8364eed29f0818588474f44f
font_02_sfnt_off0007b5cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B5CC 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_03_sfnt_off0007cbb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CBB0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9