Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2e11ad46d3f0680…

MALICIOUS

PDF

60.9 KB Created: 2021-09-20 19:02:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 7eb83fb7cca19f13638affa641c831c7 SHA-1: c07f0c1086240ecbf5448d3b5c4335f8daa47928 SHA-256: c2e11ad46d3f0680866c8e4fd8c3c9697b1e8af01d68caa83069380430628426
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised or disposable hosting. Heuristics indicate a link farm designed to direct users to malicious content, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6096

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://promenade-perpignan.com/userfiles/file/42013559795.pdf In PDF document text
    • http://asustainable.com/global/file/65828604903.pdfIn PDF document text
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145219694626---28711976944.pdfIn PDF document text
    • http://nemdanangpho.com/uploads/2021-09-05/images/files/vezifavirud.pdfIn PDF document text
    • http://energywork.pl/userfiles/file/doturunanedubakinulonip.pdfIn PDF document text
    • http://soyaksiesta3.com/userfiles/file/32965576194.pdfIn PDF document text
    • https://plantbiochem.com/ckfinder/userfiles/files/vefopotukafamupowuzijuwi.pdfIn PDF document text
    • http://cbcom.eu/ressource/site-image/files/xatije.pdfIn PDF document text
    • http://cdn.eagle.mn/uploads/userfiles/files/lusanobazijolurifutaduf.pdfIn PDF document text
    • https://valubil.com/public/uploads/cms_file/cms_files/jifowojupusarud.pdfIn PDF document text
    • https://familienbilstrup.dk/userfiles/file/pumeruwa.pdfIn PDF document text
    • https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/7bb3cf1de749bd0d658bb04239415d06/bazubowex.pdfIn PDF document text
    • https://apexsafetyproducts.com/ckfinder/userfiles/files/5498890960.pdfIn PDF document text
    • https://wonwon.taipei/photo/file/bubiributobupujawev.pdfIn PDF document text
    • https://memorybg.net/app/templates/js/ckfinder/userfiles/files/jumadan.pdfIn PDF document text
    • https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/161332109ccd06---29989788081.pdfIn PDF document text
    • https://sca-eagleegg5k.com/ckfinder/triplebuserfiles/file/mikufilorowu.pdfIn PDF document text
    • http://hc6999.com/userfiles/files/gakozubawalenopamed.pdfIn PDF document text
    • http://villaelen.it/userfiles/files/mabuputavu.pdfIn PDF document text
    • https://limblength-sldf.com/userfiles/file/nojirezis.pdfIn PDF document text
    • http://valosagoskincsesbanya.com/upload/file/93097981517.pdfIn PDF document text
    • http://medi-sen.com/files/files/pufupisotujojuximuxuxole.pdfIn PDF document text
    • https://bitree.com/ckfinder/userfiles/files/gunukiropuvela.pdfIn PDF document text
    • http://natpuedu.in/userfiles/file/98879614706.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=fantasy+life+androidPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c3db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3DB 20704 bytes
SHA-256: fc11355b234942d3df1d287fc17fbe3216a4393643c6c13024782fa4c170d613

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