Malicious PDF — malware analysis report

Static analysis result for SHA-256 6eeda0c4a1d9ad83…

MALICIOUS

PDF

68.1 KB Created: 2021-05-06 23:11:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3295bb2b033d007b892f1d4c648f8ad2 SHA-1: 0fab4f7cce3b3a900ea9573cf480f207a0fcdbbb SHA-256: 6eeda0c4a1d9ad83f496df8a8cd799c22b81f45537e2af82f1dd0aaa0f197a75
156 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute malicious content or phish users. The presence of numerous distinct hosts and links indicates a coordinated effort to host malicious files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9693

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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160919bb9c2f2d---wutidutawu.pdf
    • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/5914741c5c02ba2c480150600fb4a550/27050763738.pdf
    • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607796b6b5311---xekajisiroj.pdf
    • http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075fe3bc3066---40015684586.pdf
    • https://genesislighting.net/wp-content/plugins/super-forms/uploads/php/files/fa1576772bd46758a5e3138aeb31a4bd/47673023001.pdf
    • http://digimaap.com/wp-content/plugins/super-forms/uploads/php/files/m8sdu2sv1b2crf5uf1skkjq6pi/femiduvexipaminepe.pdf
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/mngc1u8nrpgl40pcb3tq0d1ts4/9638887990.pdf
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076b367ee2bf---jasubinorimapezarizu.pdf
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160728aef0b78a---dupevezelasaxiniwav.pdf
    • http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/7d162b2a3864606d9ddd122835b4f595/suzomijumujudum.pdf
    • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/pgbf6pon8gbbbcvcu027r3qn0c/tibovalur.pdf
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/160819eda50baf---42266437642.pdf
    • https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/160857036bba98---fajixixaparupazodikosogas.pdf
    • http://allnatureint.com/userfiles/file/mojupoboguvudupama.pdf
    • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/16074578dc8834---98663682872.pdf
    • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b0bf1f39f8---sivojofati.pdf
    • http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/782d6d4965c66b687b7b4a60dd19b5e6/13674823690.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=alien+dance+songs
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc9b.bin
bd2ba97b3dff7326897f67ab1d915fc8b1c2d57b04bef10bf4874c1cb24a057f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDC9B 5000 bytes
font_01_sfnt_off0000edae.bin
54f840e8251e674f62a81315926827f255cdcd5c891d23656e6404970227e7e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDAE 10224 bytes

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