Malicious PDF — malware analysis report

Static analysis result for SHA-256 edddd6c26e92ebe4…

MALICIOUS

PDF

94.6 KB Created: 2021-06-26 04:15:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 5d368bf0bf811857a139621b9dd23c75 SHA-1: d619c5c2a43d20ebdf96d7467e5be660b67666a6 SHA-256: edddd6c26e92ebe46eac1bbc19161a4ebc1fb5201b71f670b007e27e5f2095c0
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for Pdf.Phishing.Trojan. The numerous embedded URLs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic indicate that the document is designed to direct users to a large number of external websites, likely for phishing or malware distribution. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9820

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://innovatepc.com/userfiles/file/3586820955.pdf In PDF document text
    • https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/de861158ff7c543a4bb2ae167285e887/patidetoli.pdfIn PDF document text
    • https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/e0c29ba7e528a5271c425bc84a4c3427/zepadesejumijivefo.pdfIn PDF document text
    • http://loveperfectionschool.com/upload/file/joxexi.pdfIn PDF document text
    • https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/1c98ssqp92onkeokaig7si3fa6/zexaximusamafu.pdfIn PDF document text
    • https://www.herewardcarpets.co.uk/wp-content/plugins/super-forms/uploads/php/files/l3li0h3ltbsue1n9iv7dvebisr/41245652366.pdfIn PDF document text
    • http://thegroverestaurantnj.com/userfiles/files/kikinodolowoxijexepisar.pdfIn PDF document text
    • http://castudio.eu/userfiles/files/dowizalabufubusidipidir.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160963d4def320---wokoxoxapined.pdfIn PDF document text
    • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607e376745d5b---23852949864.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/2c5bcf0f302fc9f89bb411cf5f7440e7/jefivotiduzebijemotikobew.pdfIn PDF document text
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c993611de48---fezedaguvagebilalogeber.pdfIn PDF document text
    • http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606c75be05f8c---98584932764.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/mg5ivip8ppith8p6d0n7jlpdo2/puzabemadovunovemusipis.pdfIn PDF document text
    • http://liebherr-tr.com/userfiles/file/86334375624.pdfIn PDF document text
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5a1731b88a---78557379227.pdfIn PDF document text
    • http://24cvety.ru/upload/files/49280278959.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b7f4cd8dfc---89353834420.pdfIn PDF document text
    • https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/4899f9a504e6dbbd04a4df2871430bb6/72183483565.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609847ec6b16b---74247633683.pdfIn PDF document text
    • http://ledseoul.com/userData/board/file/44968652532.pdfIn PDF document text
    • http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bf778e3bff2---madimurefagewiliragag.pdfIn PDF document text
    • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/134ac2b63a68e49eb871556be5cf2fc0/wuniditinawasetevutimudob.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/0e0idl3mdgjc38rtu0ts6vd666/vimudol.pdfIn PDF document text
    • http://dailitara.lt/bites/uploads/file/rufavideradobidi.pdfIn PDF document text
    • http://btc-ltd.com/upload/file/litadovexi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=short+lease+property+for+salePDF 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_off00010f91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F91 17288 bytes
SHA-256: 0c91e347f6467b1e8bc98352c98f42ce7064c057e8479a457176b4f35b66b595
font_01_sfnt_off00013cce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CCE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000154e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x154E5 10448 bytes
SHA-256: c6f3472329bf46f6cfc732c46eeff9fa3c300fe2b76503fc2b46c273c3dfbb9a