Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee2a89a405cf17e2…

MALICIOUS

PDF

99.2 KB Created: 2021-07-02 07:32:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 6c78e6cf1416928782ddf6349c7d0a50 SHA-1: 461c91bd432b0524f9a64ec4d3691ac7297524f1 SHA-256: ee2a89a405cf17e2cda1414fc5c8ff427ebbaa0e13fd8cdc64bc588f5b603812
204 Risk Score

Malware Insights

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

The sample was detected as a malicious PDF phishing trojan by ClamAV. Heuristics indicate it functions as a link farm, potentially to host malicious content, and specifically mentions a 'ClickFix' social engineering attack. This attack pattern involves instructing the user to press Win+R or paste a command, which is a common method to bypass PDF security restrictions and execute arbitrary code, likely to download a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9928

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/e55b95f3b9940ba1b95e77cd16bddcf3/visagodukixomenalidome.pdf In PDF document text
    • https://sarujiovalente.com/wp-content/plugins/super-forms/uploads/php/files/hkuul9ehdfpbjj4gti56rqtnin/52381751969.pdfIn PDF document text
    • http://nct-vn.com/userfiles/file/fisopibabitobabapigitik.pdfIn PDF document text
    • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb8eda6d88---rudasixawavo.pdfIn PDF document text
    • https://fourseasons.events/wp-content/plugins/super-forms/uploads/php/files/7919aa1588ddd2dfc522d2bfd28c4a03/38522125407.pdfIn PDF document text
    • http://weingut-suppan.at/files/wibas.pdfIn PDF document text
    • https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/3lgp7nktqmf7el2mmo4kgutdf2/puxubaret.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a540644d9a2---podezorimid.pdfIn PDF document text
    • https://tenshinorchids.com/FCKeditor_upload/file/79926497854.pdfIn PDF document text
    • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/24f377b934890d424661a94c83229dd0/95117260268.pdfIn PDF document text
    • https://ewdel.cz/ckfinder/userfiles/files/70943180463.pdfIn PDF document text
    • http://capitaloffice.pl/fotki/file/vamolijod.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/416537d80e97e93ef60d93beacaa47f1/dubafekotap.pdfIn PDF document text
    • http://humanitool.ru/userfiles/file/6210791284.pdfIn PDF document text
    • https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3e519ea49---kuvolowo.pdfIn PDF document text
    • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c6bf5e7d5f6---pikusetomoxex.pdfIn PDF document text
    • https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/1390b517bb01bc5f8ce18bf611804ce0/9412656136.pdfIn PDF document text
    • http://trimblehighalumni.com/clients/84492/File/juzopurejexedorinogim.pdfIn PDF document text
    • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608803872cf25---8807393397.pdfIn PDF document text
    • http://lncxjzxxw.com/upload_fck/file/2021-6-13/20210613115504584342.pdfIn PDF document text
    • http://technoculture.cz/admin/upload/file/zobov.pdfIn PDF document text
    • https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/6956ff4a01667fd1582f50c11a1b23a9/68070767383.pdfIn PDF document text
    • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca43c6f5b8---53749024711.pdfIn PDF document text
    • https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f11241715a---7570566017.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=photo+preview+windows+10PDF 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_off0001213f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1213F 17604 bytes
SHA-256: 1369ebf1d829c6af6dd71bb15dc92ea9ac4a6d2dfeef2b65625d4c3ecedeeaa3
font_01_sfnt_off00014efe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14EFE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00016715.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16715 10608 bytes
SHA-256: f18e2b3e0bd7358427899cb748472c0e4c40fccdd61773e546773b9cf0fd02bb

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