Malicious PDF — malware analysis report

Static analysis result for SHA-256 4db93e146c792677…

MALICIOUS

PDF

83.1 KB Created: 2021-07-13 01:09:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: 8cfaed0239c1595b733c89425bc4aa07 SHA-1: 1062890251e924f69156983c04864da79c335919 SHA-256: 4db93e146c792677c3ee64606b2580cb2232b3a255c49366fcb84e3a6646363f
124 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV, specifically as a phishing trojan. Static analysis reveals it functions as a link farm, containing numerous URLs pointing to websites, many of which are hosted on compromised WordPress installations. This suggests an attempt to lure users to malicious sites for phishing or further exploitation.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3062

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 https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/blrbdq4tf5to08mg41gts4jroq/gonawebisefe.pdf In PDF document text
    • http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/f22685dd3b993266d415843fe8a2e33d/37027496304.pdfIn PDF document text
    • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609672577bbfc---49152962365.pdfIn PDF document text
    • https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/24d3e90c013757082c967cb5b177f58d/16293893142.pdfIn PDF document text
    • http://kentcliffordreunion.com/clients/a/aa/aa84b18e55fac3ff3c25336c5005d9e5/File/gofikoratiwenurumaziregal.pdfIn PDF document text
    • http://kxnjl.com/userfiles/files/30584785529.pdfIn PDF document text
    • http://shreejians.com/userfiles/file/83545339877.pdfIn PDF document text
    • https://www.nrlandscapes.co.uk/wp-content/plugins/super-forms/uploads/php/files/246978662c1f735bc2b664850253bde6/25557463077.pdfIn PDF document text
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082714e4e0f1---76423821462.pdfIn PDF document text
    • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/j5endipeku35ru4gsuftdnhcl0/93996507609.pdfIn PDF document text
    • http://acril.ru/ufiles/files/tupuwigumavonemesetozuma.pdfIn PDF document text
    • http://lycee-elm.org/userfiles/file/59152919283.pdfIn PDF document text
    • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/f52c448af0608c509b65d5fe24b90dbe/lejawe.pdfIn PDF document text
    • http://karimeh.com/public/userfiles/file/71607175149.pdfIn PDF document text
    • http://guowangcable.com/d/files/nimekijujuguwapir.pdfIn PDF document text
    • http://happy-travel089.com/CKEdit/upload/files/fipobubenepesapuxim.pdfIn PDF document text
    • http://constantemails.com/userfiles/file/1625809839sifixegosutegojo.pdfIn PDF document text
    • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ca992d7c8f9---3363472028.pdfIn PDF document text
    • http://gwhs79.com/clients/867100/File/rofidozisevosotemifokoxes.pdfIn PDF document text
    • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e08783d3294---pazozosubigogapetafe.pdfIn PDF document text
    • https://chefinhogourmet.com/wp-content/plugins/super-forms/uploads/php/files/046b7bdde186c9e6124f74b5b65639df/88233225453.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab78ce014bc---nopedemexupexi.pdfIn PDF document text
    • http://jedwines.com/cmsCart//upload/file/tatazupanudagiwakow.pdfIn PDF document text
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/160a177cd1c7c7---jewiwolajipepowu.pdfIn PDF document text
    • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160995ea3ea385---93837136851.pdfIn PDF document text
    • https://inncredel.com/uploads/wopefenazejobilugabezipi.pdfIn PDF document text
    • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/308f86bff4a70e818dd1a54b51a3e9fa/xotuduwemewama.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=responsibilities+of+community+development+officerPDF link annotation

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