Malicious PDF — malware analysis report

Static analysis result for SHA-256 29f25fdd4470bcb7…

MALICIOUS

PDF

107.1 KB Created: 2021-06-28 03:32:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: eff2d9a32d3ac5a92abcfca92953f3da SHA-1: a6e5a12e96c5a817c1d0d1d7118d9c93ac58a600 SHA-256: 29f25fdd4470bcb7b915021c467469d6ec40c5c48f8a29325ef7e7365a0443f3
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URIs and link farms pointing to potentially compromised websites, suggesting an intent to redirect users to malicious content. The document body is heavily obfuscated and unreadable, providing no further context on its specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://oniceh.ru/uplcv?utm_term=how+to+create+a+zombie+spawner+in+minecraft PDF link annotation
    • http://rotarylaspalmas.orgdocumentos/file/53024686503.pdfIn PDF document text
    • https://pametnidom.hr/pametne_kuce/userfiles/file/betelurosezamobosad.pdfIn PDF document text
    • http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/db18311809079b71759c7984b961d6da/98330869728.pdfIn PDF document text
    • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608658f930450---46815872545.pdfIn PDF document text
    • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7d6816f933---biwebududezimebi.pdfIn PDF document text
    • http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16077dbd166e7c---39466562743.pdfIn PDF document text
    • http://robbinsfamilyhealthcare.com/clients/2/2c/2c787fa606fc56c3a3a24dfc5409695f/File/tuzitusisenajapelujajop.pdfIn PDF document text
    • https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/0c1e3d246269766b23646c8edffa9bcb/19777914364.pdfIn PDF document text
    • http://apexibd.com/uploads/fck_uploads/file/5186537091.pdfIn PDF document text
    • https://bandotrading.com/uploads/file/73480143390.pdfIn PDF document text
    • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af180ca2ba4---58687166039.pdfIn PDF document text
    • https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/8bb550499acaa20b97aa5b26a7503f23/getidafonapotagi.pdfIn PDF document text
    • http://verduciautodemolizioni.it/userfiles/file/60840604281.pdfIn PDF document text
    • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16075c27157ddb---fojudorakufijeketowizarad.pdfIn PDF document text
    • https://rcot.org/userfiles/file/94647382710.pdfIn PDF document text
    • http://canigrup.com/userfiles/file/99053932304.pdfIn PDF document text
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609be6f67d3e6---dalizupojulop.pdfIn PDF document text
    • https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/eplf45nuu70lp7scs8qo397ui4/towizoworawo.pdfIn PDF document text
    • https://bonafideonline.com.ar/wp-content/plugins/super-forms/uploads/php/files/ca2291fb83a1d7dd037941c192c7a467/romufuvesirozotu.pdfIn PDF document text
    • http://agrobud.net/uploaded/file/jamoxik.pdfIn PDF document text
    • https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/d024271ad2bc828e1e1727a932919d97/dukegimijewop.pdfIn PDF document text
    • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/e06497ebf0d248c866e50d2ddc101f55/xegegidubok.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013b5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B5B 10872 bytes
SHA-256: 10477a7bbd61d7ffaa74e0a928a6fa17a7700f9471b6865e55259d1222d8080c
font_01_sfnt_off0001544d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1544D 18888 bytes
SHA-256: 70a923278a80a6ad92f336c3b5d0116bcd7a8673b8b77fe547cfd572901bd6e5
font_02_sfnt_off000186cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x186CC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.