Malicious PDF — malware analysis report

Static analysis result for SHA-256 42549c46bfc14b9d…

MALICIOUS

PDF

92.6 KB Created: 2021-08-09 01:56:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 291c980ba771e6c3a44fadc2360535e1 SHA-1: 81ad432d02273c72df0a5dcfe5a4991df070ef23 SHA-256: 42549c46bfc14b9d26a0a45e3e5325d6c6c8b318a12602a148ebbebaa0f3838e
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9932

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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/160f94997815c6---66632792357.pdf In PDF document text
    • http://charmingcurls.se/upload/file/vitinofusezukakes.pdfIn PDF document text
    • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/9ea4eeb890a581527983edb12ae8298a/duvuveterabuvizapukebe.pdfIn PDF document text
    • https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/f9beaa3c2468c0997d8620c8c8c30831/81077184125.pdfIn PDF document text
    • http://maisondequartierdespareuses.com/userfiles/file/domudigozerunixa.pdfIn PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1d726d3ad6---87543070961.pdfIn PDF document text
    • https://contabil-fiscal.ro/mm/file/6780355781.pdfIn PDF document text
    • http://tomaszskiba.com/userfiles/file/mututuj.pdfIn PDF document text
    • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ca3067b539d---josaputolalufufaxuze.pdfIn PDF document text
    • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/68ff8c2de4a8b3fc2fd601c55f731158/wazebanuxobebunedorejub.pdfIn PDF document text
    • http://stalmost.pl/userfiles/file/xojuxumokojegubi.pdfIn PDF document text
    • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083a3318f3f2---xufifobefujisaxoketulod.pdfIn PDF document text
    • https://xn--mietkndigungsrecht-best-gpc.de/userfiles/file/sufiwisunibajukituf.pdfIn PDF document text
    • https://baoholaodong24.com/userfiles/file/20312708474.pdfIn PDF document text
    • https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/h2m9mnuekgn7fmqo0cmk0rlk9a/xerifobilumufaronopufos.pdfIn PDF document text
    • http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16102475f9cbd5---3680284364.pdfIn PDF document text
    • http://ainut.fi/userfiles/file/jeparoli.pdfIn PDF document text
    • http://utuin.net/files/fckeditor/file/laxutadeporowex.pdfIn PDF document text
    • http://viviapalermo.com/userfiles/files/serelig.pdfIn PDF document text
    • http://smflow.in/admin/uploads/file/65994479655.pdfIn PDF document text
    • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160903f0512bb8---bosadukuxejatanip.pdfIn PDF document text
    • https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/9ed19b0b34b38456df8a0c57720524a0/36093122445.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/12298247237.pdfIn PDF document text
    • https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/2e4595484338e5723d54e4e7f0f3340c/muluxe.pdfIn PDF document text
    • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160de08d494393---10958228777.pdfIn PDF document text
    • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160ab7694644d5---vetebat.pdfIn PDF document text
    • https://genesisbeIn macro / runtime command snippet
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=distance+and+displacement+lab+activity+answer+keyPDF 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_off00010618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10618 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011e2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E2A 16608 bytes
SHA-256: 1d8553d5fee7c3ef8899bc1a9eccf43b61711c97861e46406c1bb22dea057dba
font_02_sfnt_off00014996.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14996 11056 bytes
SHA-256: 23a2032f14ffbf375fae3ff5fb71962256f014889a13aa816f33750cfa04df63

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