Malicious PDF — malware analysis report

Static analysis result for SHA-256 07696a9ad56348db…

MALICIOUS

PDF

95.7 KB Created: 2021-08-02 21:23:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 30b010e132f4100a69864fe1ceac1fd0 SHA-1: 2bd46bafdeeda294e360e82f47153fe29f4c938d SHA-256: 07696a9ad56348db52dc52faae284287981af9a13b7667eb1bc2eff6a36dbbca
154 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to multiple domains, many of which are hosted on compromised CMS platforms or disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, and the document body was unreadable, but the heuristic findings are sufficient to assess the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9570

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://www.conectadoscomdeus.tv/arquivos/file/lifolodarabupu.pdf In PDF document text
    • http://1utilaje.ro/mm/file/88867638960.pdfIn PDF document text
    • https://copperscraphandlers.com/ckfinder/userfiles/files/98671447503.pdfIn PDF document text
    • http://theettiares.com/clients/f/f0/f03dfc1790708d0b03c48e9879ef2ea6/File/29012459011.pdfIn PDF document text
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16078a0c63918e---99250976878.pdfIn PDF document text
    • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/j2b2d2j8ig960t3dgeef5sm9br/70789287050.pdfIn PDF document text
    • https://aviseco.ro/userfiles/file/wudip.pdfIn PDF document text
    • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e92320b31c8---76427258418.pdfIn PDF document text
    • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/9ceq5ei5la5fh961pr040s0tch/fumelarejerefikupa.pdfIn PDF document text
    • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/fd6a0c006c74c0ff6eb6fdc3d3b9ddf0/zutovitekesiwijikepoposi.pdfIn PDF document text
    • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f5988a325d---14465838901.pdfIn PDF document text
    • https://producedepot.us/userfiles/files/xadulifanuronelav.pdfIn PDF document text
    • http://jinanxintiandi.com/userfiles/files/37799849960.pdfIn PDF document text
    • http://mabifitness.it/userfiles/files/72341795282.pdfIn PDF document text
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160723150b7de9---xefisewi.pdfIn PDF document text
    • https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/3d55685158234347f4e6c788029ea4e5/76614996048.pdfIn PDF document text
    • http://guoyangmoju.com/userfiles/files/wuzafejavaruvipav.pdfIn PDF document text
    • https://mt-creativestudio.com/ckfinder/userfiles/files/2796543822.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1606d481f1f23a---nabimizubinitoxewexele.pdfIn PDF document text
    • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/df1c238e010eeecc7c483695e7376449/tuwobufenixigux.pdfIn PDF document text
    • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/h77bejhtbjobebq7ri7o77krv6/wutemul.pdfIn PDF document text
    • http://svazekobciorlice.cz/userfiles/file/guludanetilabegog.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=how+to+do+squats+with+weights+at+homePDF link annotation