Malicious PDF — malware analysis report

Static analysis result for SHA-256 f13e705566faa69a…

MALICIOUS

PDF

64.0 KB Created: 2021-07-03 03:21:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: 713b5f83299b2b918141c4a7cb33888a SHA-1: 4a740d50f4ac24e546574a95293a9319c288756d SHA-256: f13e705566faa69a6352986d72988cf16062ce856150a03e4ba61e353729f910
124 Risk Score

Malware Insights

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

The file was detected by ClamAV as Pdf.Phishing.Trojan. Static analysis revealed it functions as a link farm, containing numerous URLs pointing to compromised WordPress sites. These links are likely intended to lure users to phishing pages or download further malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3846

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://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c95a3b9ecaf---57213986343.pdf In PDF document text
    • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ad05baf24d---nivemazuzebakaguxowenovu.pdfIn PDF document text
    • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/pt8phaoub3ps9ev6h7dj9dp447/wedepazit.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/a021c8de28a09403befdb1cb3106d870/9355345985.pdfIn PDF document text
    • http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/dosolatuzifibe.pdfIn PDF document text
    • https://webupdate.ca/wp-content/plugins/super-forms/uploads/php/files/f65jnjgdnq4bis74a34nk41b13/52572167878.pdfIn PDF document text
    • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607bd7cf2c9fe---zidawafugelegaxiputone.pdfIn PDF document text
    • https://subarini.ro/mm/file/vagumipujojapeduz.pdfIn PDF document text
    • http://agataklimowska.pl/userfiles/file/kisoge.pdfIn PDF document text
    • http://esipro.fr/userfiles/file/pidizelos.pdfIn PDF document text
    • https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/150d81bd47d6beb870c8fb163b539ee9/39963056006.pdfIn PDF document text
    • http://kleiberit.ru/files/file/teriviwerivuvo.pdfIn PDF document text
    • http://namlongprojects.com/images/uploads/files/13068544791.pdfIn PDF document text
    • http://gulfcoolcontracting.com/uploads/userfiles/file/file/54657095096.pdfIn PDF document text
    • https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/3a0sn15d4jd4atkfel6eu37bkj/96970882265.pdfIn PDF document text
    • http://usaoxin.com/userfiles/2021-5/file/64069951147.pdfIn PDF document text
    • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/705ebb973cdd57a9fe1c1e74520b0df7/52180439316.pdfIn PDF document text
    • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/aff24j8do9sm3oc0kpi2s7lia8/getibi.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/ed8bd354902b6d787dbf8de8d8ac5e69/nuwalajofobipenejaxabix.pdfIn PDF document text
    • http://111-orte.de/testarea/cwsCMSlight/media/files/nagotuvisazarezibodas.pdfIn PDF document text
    • http://archi1919.com/smlclub-files/file/61102802298.pdfIn PDF document text
    • http://easyliveconstruction.com/ci/userfiles/files/tadapowige.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c54f7adbc36---46219098909.pdfIn PDF document text
    • http://apexnepaltravel.com/userfiles/file/nefijikixugozefoli.pdfIn PDF document text
    • http://whalesart.com/uploadfile/file///2021051609314710.pdfIn PDF document text
    • https://bbmint.com/userfiles/file/399604126.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=ignou+openmat+test+papers+with+answersPDF link annotation

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