Malicious PDF — malware analysis report

Static analysis result for SHA-256 d47712accd39cb5c…

MALICIOUS

PDF

80.0 KB Created: 2021-09-03 07:32:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 1ee07016790ef2517aa38b89f56319b1 SHA-1: ce00a489f3bc95edbd14611a15e229c64e31d863 SHA-256: d47712accd39cb5c37854a207b509b7638ee00258125c00af9078f99da2ace35
124 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to lure users to potentially malicious destinations. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent, likely for phishing or distributing further malware.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3985

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://batiment-tunisie.com/userfiles/file/70646003864.pdf In PDF document text
    • http://dyglas.com/userData/board/file/panegovotunikare.pdfIn PDF document text
    • http://modernplating.com/userfiles/file/nutopevadixalor.pdfIn PDF document text
    • https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/da036aed8c22b6a4fac57d5a5f75483d/86034569656.pdfIn PDF document text
    • http://www.darvidproperty.com/news/file/13226365695.pdfIn PDF document text
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c87d1c6e9aa---naxeramo.pdfIn PDF document text
    • https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/3ff09cf50aad2ad0d7d1b4db7e04a885/43218176491.pdfIn PDF document text
    • http://renovfab-menuiserie.com/userfiles/file/xobelu.pdfIn PDF document text
    • https://auto-rujo.com/images-editor/file/99238846472.pdfIn PDF document text
    • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/2e30bbe3f2d3eea644be4cdd9f507ede/mokowatelomawodujiwopo.pdfIn PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/88d9443b6b6537debfe045a987f70d1b/dubawikesi.pdfIn PDF document text
    • https://remoteyourstaff.com/calisma2/files/uploads/vebanaw.pdfIn PDF document text
    • https://flying-vikings.net/UserFiles/file/webajebubodadaturom.pdfIn PDF document text
    • http://decom.pro/admin/ckfinder/userfiles/files/gakagasijusijoruvobuto.pdfIn PDF document text
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160790ef5e5e2a---dovomixe.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c47a33a5269---winebisuwakemuguber.pdfIn PDF document text
    • http://apexnepaltravel.com/userfiles/file/varanadedoduk.pdfIn PDF document text
    • http://boldogelet.hu/media/runovapezuwajevosozuku.pdfIn PDF document text
    • http://woodwork.pl/ubezpiecz/obrazy/file/24503624190.pdfIn PDF document text
    • http://stroisvias.ru/userfiles/file/84512315795.pdfIn PDF document text
    • http://braghieriarchitettura.com/userfiles/files/61540044586.pdfIn PDF document text
    • http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d72428160d3---7046223868.pdfIn PDF document text
    • https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607a56ec7653b---biluvube.pdfIn PDF document text
    • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606c91b76a8a4---26613602300.pdfIn PDF document text
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a1ff6b93e50---40701461684.pdfIn PDF document text
    • http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/788c616495a42217916fc78cfcfca3f0/53303699869.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=digital+microwave+radio+system+pdfPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010fa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FA2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000127b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127B9 11128 bytes
SHA-256: 32aedfa129998e9c26b38247ba7e4e93d7418d2efb25f3a9bae40cb53a80b2bd