Malicious PDF — malware analysis report

Static analysis result for SHA-256 7db2a6af500a11cf…

MALICIOUS

PDF

91.1 KB Created: 2021-06-29 02:51:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 1d5b968f8dc1b06fff08fc4726f587cd SHA-1: 702082e6e4ef62819cb0bf0ef9d4142f5a901ab7 SHA-256: 7db2a6af500a11cfa5fb8b1957d4832540a1378556374b344d1d9156b290e598
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links pointing to compromised WordPress sites, indicating a phishing or redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The presence of a link farm on disposable hosting further supports this, as it's a common tactic for distributing malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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 https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160861ea808ba4---wezuzabadeko.pdf In PDF document text
    • http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/d9e203144304d884d6f00b97211bb3f7/vikeg.pdfIn PDF document text
    • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aacf0640e20---pifepaxi.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c955b3e4eb---81845785781.pdfIn PDF document text
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/9b8e6cd1b7e5ba96ecf471af045f8751/661892609.pdfIn PDF document text
    • http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097ddf076389---60082782118.pdfIn PDF document text
    • http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b8f620a941---69013983399.pdfIn PDF document text
    • http://fincasotilloviejo.es/files/sotillo/_repo/file/dagaxuvexalazuparofiza.pdfIn PDF document text
    • https://www.hamburgeriaagricola.com/wp-content/plugins/super-forms/uploads/php/files/64kdslq4qdjqq6oj05qddsnteg/6105365404.pdfIn PDF document text
    • https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608e608f4dc49---paluvefizoselupugito.pdfIn PDF document text
    • https://ijp2.com/contents//files/87274853017.pdfIn PDF document text
    • http://dahchen.tw/userfiles/files/18782745657.pdfIn PDF document text
    • http://topas.lt/userfiles/file/dedalunilejenuku.pdfIn PDF document text
    • http://rauvuonsach.com/images/uploads/files/dedabazuxekubujamoguvux.pdfIn PDF document text
    • https://blugarden.eu/file/firenofarevefanovid.pdfIn PDF document text
    • https://bandai-k.com/userfiles/file/48852382047.pdfIn PDF document text
    • https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/9281744438.pdfIn PDF document text
    • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160acf79f86d6a---wunutetigorepikalunuf.pdfIn PDF document text
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b301ff72d5d---nokomijurapukukerowot.pdfIn PDF document text
    • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e5b41c2034---gazaxisekiluloleleda.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=meaning+of+transpiration+in+plantsPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00011af7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x11AF7 18328 bytes
SHA-256: d9f5e66163d907df9b2c2f031b8906ab183602eda4757f3e8ef428a9cf922d60
font_00_sfnt_off0000cbde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBDE 10524 bytes
SHA-256: e046d6fc2d1d835154348b7cb21363fb7248ba72a4f72276f76c56159201e879
font_01_sfnt_off0000e3ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3EE 22532 bytes
SHA-256: 2b0605e915dbb8eec1bb4277d2ba2b7748e897e99b08867e60d5997ff1be85e1
font_03_sfnt_off0001388f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1388F 3464 bytes
SHA-256: a8161c2f5ba9235eb51b4fcc43b6bb219725019365cb8d38f9ec25dfe5ce54ff
font_04_sfnt_off0001460e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1460E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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