Malicious PDF — malware analysis report

Static analysis result for SHA-256 bde9e4d94ad6d04f…

MALICIOUS

PDF

77.6 KB Created: 2021-09-03 22:26:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: ba7d5c572d474e4f757764f06bd21d9f SHA-1: 67cfca2ca443f84dbfdec2a1d0acae7d438eeabf SHA-256: bde9e4d94ad6d04fc7e38f54ebd8474dc368a3486d14240a51932479fe77a323
124 Risk Score

Malware Insights

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

This PDF file was detected as a Trojan by ClamAV, indicating malicious intent. It functions as a link farm, containing numerous URLs pointing to compromised or disposable hosting sites. These links are likely intended to lead users to phishing pages or download further malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3069

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://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16070c696aa92a---tasilew.pdf In PDF document text
    • https://riminabda.sk/userfiles/file/dimejed.pdfIn PDF document text
    • http://frankslawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/47591418041.pdfIn PDF document text
    • http://itineraire-consulting.com/ckfinder/userfiles/files/96699936648.pdfIn PDF document text
    • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070a10e020cb---22903440335.pdfIn PDF document text
    • http://studiobardinisrl.com/userfiles/files/80325997684.pdfIn PDF document text
    • https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/g135jpmkpbiupodl576m5o9kdt/xolixasabu.pdfIn PDF document text
    • https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/83aca30b347784a793e2346e09e20fb5/zegemosezukuvenijedotez.pdfIn PDF document text
    • http://splhardware.com/UploadFile/file/2021072813433573499.pdfIn PDF document text
    • https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/ito63amedrrrrnjlitcdi6ii1k/92342716275.pdfIn PDF document text
    • https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/2f638a4ba7d2d2d87ff907847ca0fa5c/jelijanodizasixutapev.pdfIn PDF document text
    • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/1e7d22f7f322fa02ac9e4050f01db16e/lenalaxuwewuzujowasu.pdfIn PDF document text
    • http://fsf-vastroad.com/userfiles/file/lofukosinale.pdfIn PDF document text
    • https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098459ed6b08---kedatusizopomasomiz.pdfIn PDF document text
    • http://youil.org/userData/board/file/telipoguvaxobita.pdfIn PDF document text
    • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a952e3a8ee4---93017854784.pdfIn PDF document text
    • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/9l7c8rqig4l917igu6pl7sh5e7/wagefepiwoku.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/c6e0c51240e55438fb9e29a04a9210c6/61114885335.pdfIn PDF document text
    • https://coimbatorepressclub.com/FCKeditor/userfiles/file/26172881106.pdfIn PDF document text
    • https://qian-ho.com/upfiles/editor/files/gimenajafodetulajagebamew.pdfIn PDF document text
    • http://cs-golfclub.com/ckupload/files/tajanen.pdfIn PDF document text
    • http://ukwoodrecycling.com/userfiles/files/dotikawumoluwi.pdfIn PDF document text
    • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/dka3ql6vu0jgdsamtknmrecqib/85478668308.pdfIn PDF document text
    • http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160946884e1253---napugogusorunajidobogujod.pdfIn PDF document text
    • http://klinok-saintp.ru/files/75561696390.pdfIn PDF document text
    • https://subded.org/userfiles/file/91985233160.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=all+you+zombies+short+story+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_off0000e600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE600 19956 bytes
SHA-256: 8f70d7c689acc5031d7a3dc307c175d3c8a6fa939569a52f41d6e4417fdfee9c
font_01_sfnt_off0001181f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1181F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1