Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e49c2242725cd6d…

MALICIOUS

PDF

89.5 KB Created: 2021-07-02 11:45:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 75d0eee47ec95eff547b2f094aa4c2e0 SHA-1: aa521e53f511c556f39e19891afd1effe918d76c SHA-256: 3e49c2242725cd6d1138c7f09bd73df3b4cab08d13502694f6da74e23895d6ed
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs pointing to compromised WordPress sites that host other malicious PDFs. The presence of these links suggests an attempt to distribute further malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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
  • 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 http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608b552228e03---xonurusiwe.pdf In PDF document text
    • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb8998c69e---tozetutobegawunulew.pdfIn PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/3047e54cb8b0c98c3d1f44b0f1cb0caa/79041506726.pdfIn PDF document text
    • https://slaterlighting.com/wp-content/plugins/super-forms/uploads/php/files/6fb0f7ebf02253939f65b3309d4f5840/99883690320.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/71061a7913ad363c6784a24cec57d379/69981570645.pdfIn PDF document text
    • https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/mjhbsb057qv9pnohnk4a1vp55v/45416531056.pdfIn PDF document text
    • https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/160ad309c6f072---38932796981.pdfIn PDF document text
    • http://akgikorea.com/file_upload/fck_upfile/file/24206062662.pdfIn PDF document text
    • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/d2f61b301ba62f2a04ec617bb45724c4/sunanalo.pdfIn PDF document text
    • http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a1d5a03fac---bobekovumunej.pdfIn PDF document text
    • http://holzweiss.at/kixozep.pdfIn PDF document text
    • http://dui-antidote.net/images/userfiles/file/nulukonebusavajalibukixe.pdfIn PDF document text
    • http://architects-desk.com/uploadsfile/mufexalipa.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/v2d17kcd1gen6l18lm0fi1glr2/12869225418.pdfIn PDF document text
    • https://ipic.vn/userfiles/file/83682370756.pdfIn PDF document text
    • https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/cdc9a8aa18481490e82c8d82b1dbf51f/barusupaguvekazu.pdfIn PDF document text
    • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/feff1642fc430d4208155a3630774feb/sozawo.pdfIn PDF document text
    • http://myjobcareer.net/userfiles/file/2021052206481573499.pdfIn PDF document text
    • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609b76c007d7a---wapowewonumoborofit.pdfIn PDF document text
    • http://sotel-perm.ru/site/file/kolesirojizajunebizaridog.pdfIn PDF document text
    • https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607efdd2d6f0d---90625399476.pdfIn PDF document text
    • https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/o6009ejnfk9plomh6754bossa5/vodutoba.pdfIn PDF document text
    • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbd33da753b---dozezorotinetexudinupu.pdfIn PDF document text
    • https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/701c3523f597967651a3ec12f14f241b/40701639819.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=willy+wonka+and+the+chocolate+factory+streamingPDF 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_off0000f998.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF998 17188 bytes
SHA-256: c8ec216be721b9442daaa299c4987ba126679fb673de574cfa16342c63bc5daf
font_01_sfnt_off00012664.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12664 11208 bytes
SHA-256: 760d146a3427dcfbc0354c588486ba31dffdac3fd8d14f3f4fed049a31481b40
font_02_sfnt_off0001404a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1404A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1