Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dfb649b333a2da5…

MALICIOUS

PDF

58.2 KB Created: 2021-07-18 22:56:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 71338fc050a8cacd6f5d4ba405e58fb7 SHA-1: 0134e531a6c87775f508296f60659c20fffc5d3d SHA-256: 0dfb649b333a2da5b26ebca2e8434aaf69d341e6e6a886faee2b5d8dec7a8a3c
174 Risk Score

Malware Insights

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

The PDF is identified as a phishing lure due to its image-only nature and embedded links. Heuristics indicate it's a link farm pointing to compromised CMS uploads, a common tactic for distributing malware or conducting phishing. The ClamAV detection and ML classifier further support its malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6531

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 58 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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.ez4parcel.net/upfile/files/2021/06/19/zuziralofakunuwojubalokob.pdf
    • http://botosani.ro/img/uploads/file/53297528016.pdf
    • https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/bf79nviv3uunjafisbtiuudik3/83952986499.pdf
    • https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/hog5tl01mvrttcnkieo7iqdojp/20973922081.pdf
    • https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/pnqa3guki6kjgsbvnk91r3b1fh/34247360734.pdf
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16086cebbd42a1---gozerozuzemipekezigi.pdf
    • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/kph3sqomp421mctmhsmuqtpvkl/8842228638.pdf
    • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fffa5863b1---pebanakarujurowexi.pdf
    • http://etcad.net/np/upfile/file/32319340263.pdf
    • https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092594d0e8d1---vavulova.pdf
    • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/a40a31353164f947402777f81dfd508d/49774610817.pdf
    • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d82e36faa5---61215945864.pdf
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a835fdbbee9---79751567881.pdf
    • http://tw-sincere.com/upfiles/editor/files/jadasopinata.pdf
    • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1607d80d947484---wobajoteje.pdf
    • https://recapress.com/ckfinder/userfiles/files/69873263847.pdf
    • http://www.aluvascientific.com/UserFiles/file/53878694545.pdf
    • http://burrburroughsfamily.com/clients/55468/File/98896652962.pdf
    • http://autobedrijvenindex.nl/images/uploads/91176929148.pdf
    • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16082e4fc2a98a---juwoporepifapigixe.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=old+gold+buyers+near+me

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