Malicious PDF — malware analysis report

Static analysis result for SHA-256 921dcf7dc5c6164f…

MALICIOUS

PDF

58.6 KB Created: 2021-03-03 08:36:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 8eb5b373157cf66fe83d87cb99c9cace SHA-1: b185c3492b64d578bfaf918f2f8ee2fe9f038891 SHA-256: 921dcf7dc5c6164f06d90e85f74788e76405a5cba9d3dbdcd1ee5763dcf1655b
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6975

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://crophysi.ru/award?keyword=bosch+500+series+dishwasher+shpm65z55n+price PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4388814/normal_5fec12fc4686d.pdfIn PDF document text
    • https://bakuwosir.weebly.com/uploads/1/3/0/8/130874569/1881328.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375350/normal_6033d9033ada3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409238/normal_6001d52da0eaa.pdfIn PDF document text
    • https://veralekixa.weebly.com/uploads/1/3/1/0/131069874/ruxava.pdfIn PDF document text
    • https://zukugobewumebol.weebly.com/uploads/1/3/4/0/134017275/1030546.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379852/normal_5fe08b6c1d1db.pdfIn PDF document text
    • https://fubomagasikeka.weebly.com/uploads/1/3/4/4/134474343/zawolelev-puporezepezov-raxoti-zivobuvodisawej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387921/normal_5fe86808be7f2.pdfIn PDF document text
    • http://tepifugamokeg.medianewsonline.com/casio_g_shock_watches_walmart.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371265/normal_5fca8485b8067.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485718/normal_601d330c9295e.pdfIn PDF document text
    • http://xawegap.mywebcommunity.org/fisher_paykel_dishdrawer_dishwasher_reviews.pdfIn PDF document text
    • http://safijejog.mygamesonline.org/el_hobbit_un_viaje_inesperado_netflix.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367964/normal_5ffd360a9a79e.pdfIn PDF document text
    • https://s3.amazonaws.com/retisovojor/38768354161.pdfIn PDF document text
    • https://s3.amazonaws.com/filidabut/34850334227.pdfIn PDF document text
    • https://s3.amazonaws.com/megujobemegor/us_air_force_academy_average_gpa.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/fefame.pdfIn PDF document text

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