Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e9ca2ffc6d823f0…

MALICIOUS

PDF

84.5 KB Created: 2021-06-27 03:25:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: ada26b88d61c7b6d682f054457db2a97 SHA-1: 13dbd9b4374591218922c1f31d02c123a5d0636d SHA-256: 2e9ca2ffc6d823f02e5b5ccb8ae4811ec6aa0dac28528e737a1ef3f526f9730d
164 Risk Score

Malware Insights

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

The PDF contains a link farm directing to multiple URLs, some of which host other PDFs and are hosted on compromised CMS platforms. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The 'SE_INVOICE_LURE' heuristic suggests a pretext for user interaction, though no specific document body text was extracted to confirm this.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/d616qdq727uk8a1ae5sjketi0e/gobugovigesajesisuguben.pdf In PDF document text
    • http://greenbrier101.com/userimages/97887290720.pdfIn PDF document text
    • http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/gpveg21anl62p3fisiq0i182qq/wofegakegatal.pdfIn PDF document text
    • http://etcad.net/np/upfile/file/18484034183.pdfIn PDF document text
    • https://signaturetowerpune.com/wp-content/plugins/super-forms/uploads/php/files/f6e1suefhk2va55d4i2vinram1/26568239051.pdfIn PDF document text
    • https://betalinktech.com/blmedia/file/xotewo.pdfIn PDF document text
    • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/496d47940b4619652ece7b8e824ebb74/geletefogozafijefeza.pdfIn PDF document text
    • http://piemonteforyou.it/userfiles/file/kefavo.pdfIn PDF document text
    • http://niestachow.pl/data/aktualnosci_imgs/file/jijizixik.pdfIn PDF document text
    • https://calmoinc.com/upload/editor/file/54011812590.pdfIn PDF document text
    • https://alakharia.com/public_html/userfiles/file/segelisonizulij.pdfIn PDF document text
    • https://lienlacanien.com/img_pages/file/zekomutaliletarerowubab.pdfIn PDF document text
    • http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b620ad6a5fd---winebetivokab.pdfIn PDF document text
    • https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/0955a04fa7b30d9c4fac1c089b203130/vegitetureguwaf.pdfIn PDF document text
    • https://alice-immo.com/userfiles/file/40714066154.pdfIn PDF document text
    • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607d068e20a38---libokagavatisef.pdfIn PDF document text
    • http://accessiblevehicleservices.com/userfiles/file/94351703828.pdfIn PDF document text
    • http://controldellaves.com/app/webroot/arxius/file/37010334744.pdfIn PDF document text
    • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160bfc3900cf27---6718764885.pdfIn PDF document text
    • http://doreenindiatours.com/userfiles/file/mexoju.pdfIn PDF document text
    • http://travellightnepal.com/userfiles/file/61302356209.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7921460497---43892964149.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=palm+beach+records+searchPDF 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_off0000e512.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE512 18172 bytes
SHA-256: 59d1fd831ce49bb3a085c1e6ba8ca4380974330a8a9e1890b00947e2ad6f6b5b
font_01_sfnt_off0001150b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1150B 10484 bytes
SHA-256: 16a99a2ca3a4d8be148b986905db27244a862154df2b0dafae04f5650fb78586
font_02_sfnt_off00012cd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CD6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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