Malicious PDF — malware analysis report

Static analysis result for SHA-256 60a819682da15f01…

MALICIOUS

PDF

62.3 KB Created: 2021-06-28 07:55:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 02a73293cc3b5f25165a847097eff87e SHA-1: f05380dc688c25c38de1e1bfe6709d228e799c46 SHA-256: 60a819682da15f01ee1da83d3f6cb65b843a49456496bf4e12b041b2e9022f69
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and ML classifiers, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and a large number of external URIs, many hosted on compromised WordPress sites, strongly suggests a phishing or malware distribution scheme. The embedded JavaScript likely facilitates the redirection to these malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://catamma.ru/uplcv?utm_term=driving+driving+in+your+car+lyrics PDF link annotation
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d82c63f1f5---rezapivaso.pdfIn PDF document text
    • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609ff6ad7472b---bojiwi.pdfIn PDF document text
    • https://brs.jo/userfiles/files/26980624114.pdfIn PDF document text
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c0356cc73ad---dipewuregevano.pdfIn PDF document text
    • http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d194a4b95d---jigema.pdfIn PDF document text
    • https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b608c868750---48087311868.pdfIn PDF document text
    • https://chachachat.info/js/ckfinder/userfiles/files/turijupeliwuwe.pdfIn PDF document text
    • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/fbritah14pmdurrjor8u2k3bku/luxunefufoxezegude.pdfIn PDF document text
    • http://re-view.online/fckFiles/file/3371228340.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609e671177786---1282260521.pdfIn PDF document text
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/45e9ee2583ff4c33efe56cc3083b1635/viguwanevosamolozu.pdfIn PDF document text
    • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0240844727---binutajegolaborimibete.pdfIn PDF document text
    • https://emilline.dk/ckfinder/userfiles/files/80325107018.pdfIn PDF document text
    • https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/ad2b368d662bb4001471f16c27fbc32c/nemiwevujafusojufijozam.pdfIn PDF document text
    • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2be3c96e34---12592980785.pdfIn PDF document text
    • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd80a225ce9---rotukunolijozixikop.pdfIn PDF document text
    • http://abacusnancy.com/userfiles/file/befisesegi.pdfIn PDF document text
    • https://xn----9sbccjdbca7cyaieg1a3j.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/db1c128e28b24cb0b1d4c36528ebf88c/62266066565.pdfIn PDF document text
    • https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/e99a02c4823f29130020fb4a082c000d/zemasuwonar.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f85445a66c---6673589908.pdfIn PDF document text
    • http://www.serenissimaservizi.com//files/1536594156.pdfIn PDF document text
    • http://anhuizhkj.com/upload_fck/file/2021-5-13/20210513074225933986.pdfIn PDF document text
    • https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bafee763241---dasefosegobata.pdfIn PDF document text
    • http://hndgyl.com/v15/Upload/file/2021623011189317.pdfIn PDF document text
    • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1db59b158a---nosafajumegawewefo.pdfIn PDF document text