Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc14e6eee788796d…

MALICIOUS

PDF

73.4 KB Created: 2021-08-26 14:15:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 0932253f91518edeff56fef0e2f372ae SHA-1: eeff851c7719d5734898afaae2c36cb55f1b1f5b SHA-256: fc14e6eee788796d4c1480cca032824ad6b149416661f5cc97111470f6676bc3
124 Risk Score

Malware Insights

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

The file is identified as a malicious PDF by ClamAV, indicating it's likely a phishing or trojan delivery mechanism. The PDF contains numerous embedded URLs, many pointing to WordPress sites using formcraft plugins, suggesting a link farm or a method to host and distribute other malicious files. The presence of these links and the ClamAV detection strongly suggest an attempt to lure users into downloading further malware or visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3852

Heuristics 5

  • 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
  • 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://moto-bike.pl/userfiles/file/lezafulereronax.pdf In PDF document text
    • http://vertracapital.com/uploads/files/72086317655.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e7a14a40e75---71321017046.pdfIn PDF document text
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab24aaa574f---99290429272.pdfIn PDF document text
    • http://kopdesign.nl/userfiles/file/77485865162.pdfIn PDF document text
    • https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088fe06e30e4---91633457352.pdfIn PDF document text
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083cf7c5745f---gejixagasodulat.pdfIn PDF document text
    • https://itracmediav5.com/ckfinder/userfiles/files/bikemure.pdfIn PDF document text
    • https://matratva.in/userfiles/file/74087545441.pdfIn PDF document text
    • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606c699b34633---mosurabali.pdfIn PDF document text
    • https://onecre.com/images/content/files/jafuwetisek.pdfIn PDF document text
    • https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/122012811eef72eaf668ea7bdc8092bf/65497045026.pdfIn PDF document text
    • http://southfieldhigh.com/clients/a/a2/a202dccd336a30abee2d0a4364b9f07c/File/vegiworinusutimemu.pdfIn PDF document text
    • http://toonesk.com/upload/tawexuxidexanifa.pdfIn PDF document text
    • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/816e480413fb31959688c115541fe778/zagekakutu.pdfIn PDF document text
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/2gp99u7ah1dsvie57nftak608j/87113503022.pdfIn PDF document text
    • https://bd-sokolovska.eu/userfiles/file/72235472837.pdfIn PDF document text
    • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608157ad388b2---tatelazilapove.pdfIn PDF document text
    • http://grafiport.com/userfiles/file/88690765590.pdfIn PDF document text
    • http://op-gold.com/ck_image//files/53935557675.pdfIn PDF document text
    • http://j1medical.com/uploaded/file/67257014789.pdfIn PDF document text
    • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed26fe1802---98657317888.pdfIn PDF document text
    • https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093e494289d8---pupafaguxexo.pdfIn PDF document text
    • http://feynburg-uhren.de/uploads/nesiwariwiwurumagawazu.pdfIn PDF document text
    • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609899d4f28e8---vepoguvimegife.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=insta+booster+apk+downloadPDF 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_off0000d899.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD899 16668 bytes
SHA-256: 6c20a237a891e8777dae97ecda45b97cf99207e25d083b586a795efaa5fa0fc3
font_01_sfnt_off000103e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103E8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1