Malicious PDF — malware analysis report

Static analysis result for SHA-256 32205314f76646d9…

MALICIOUS

PDF

74.1 KB Created: 2021-09-02 05:44:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 41e95ffd09b2fa9720fa714eddf99ef3 SHA-1: 4a50d24835a16c1157ac025f37adedafe82dcb4c SHA-256: 32205314f76646d9509624792e7cb4b94187b948cf7ed31d4673a10c61211ed5
154 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to compromised websites or disposable domains, indicating a link farm designed to lure users to malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' and ML classification further support its malicious nature. The primary goal appears to be directing users to potentially harmful external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6658

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://hobbstownis100.com/clients/6/66/66141d04a4341350d76ae3a38785cb5a/File/menolubidepiset.pdf In PDF document text
    • https://jasz-pap.hu/UserFiles/file/10602401649.pdfIn PDF document text
    • https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/59c7a2361f14022a52191fde09a7a185/mefivuxelifedazusimaxefat.pdfIn PDF document text
    • http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160755d13b4549---lisonewamarimaditorirur.pdfIn PDF document text
    • http://riph.pl/userfiles/file/11497110534.pdfIn PDF document text
    • http://bizbecho.com/pa/trainstation/uploads/image/file/kivixusosefisegejabemawim.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0a25adc2e---62717837121.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1612c6bde04632---litixuwemopil.pdfIn PDF document text
    • http://anhuishangbiao.com/upload_fck/file/2021-5-6/20210506080354931986.pdfIn PDF document text
    • http://5m-tti.com/uploads/image/files/xupaw.pdfIn PDF document text
    • http://ipublicity.cz/data/file/pasinolojokijo.pdfIn PDF document text
    • http://plafondchauffant.fr//img/user/file/76967756490.pdfIn PDF document text
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607d8f5d6f712---makawudesabar.pdfIn PDF document text
    • http://feg.vn/uploads/files/mukowi.pdfIn PDF document text
    • http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160edd109d46fc---27261246025.pdfIn PDF document text
    • http://yh-nutri.com/filespath/files/20210813174903.pdfIn PDF document text
    • https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/91b1d281570ad51ced9f2c604eee7a9e/gotosetowuta.pdfIn PDF document text
    • http://www.tamtrebinhminh.com/public/files/81921902981.pdfIn PDF document text
    • https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/igrroj3viqr62a5rg97b0g5l19/28890415242.pdfIn PDF document text
    • https://beliangka.com/contents//files/magotorobogoselalipozif.pdfIn PDF document text
    • http://ambiance-cinema.fr/wp-content/plugins/super-forms/uploads/php/files/4a8ee42d4c2fb282772331b505e2058e/potivabi.pdfIn PDF document text
    • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609081908fcfc---wobidefesipufun.pdfIn PDF document text
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ffecc3a23f4---kubabiretokazufuso.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/76913586773.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bbd5abd7d41---vegubawazadajo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=june+2014+chemistry+regents+answersPDF 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_off0000dd22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD22 11172 bytes
SHA-256: 3444f4903fff9c88a813a0ff9fb5b4f9d5502bc885e397ec0ac013afb9f46316
font_01_sfnt_off0000f757.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF757 17900 bytes
SHA-256: 7040bd7a196d6d46ea6e1cd36df32b1d2098eb6565b5db6a8097a9facb61b8c5