Malicious PDF — malware analysis report

Static analysis result for SHA-256 29f38a42d2a65afd…

MALICIOUS

PDF

66.6 KB Created: 2021-03-24 17:29:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 3fc8cebcbc5173cc25b851d36bff61e7 SHA-1: a1612f8ceb880e4309c7daa511da6df0cce5acf7 SHA-256: 29f38a42d2a65afdd7863ed011eec0a844d4ea00764a1f937c0c4ea8a1a0a765
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of external links, many of which point to disposable hosting services, indicating a link farm designed to distribute traffic. The ClamAV detection and ML classifier flagging strongly suggest malicious intent, likely for phishing or malware delivery. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, potentially leveraging embedded JavaScript for malicious actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6087

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
  • 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.
  • 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://mezovuduw.ru/aws?utm_term=blender+3d+tutorial+character+modeling+pdf PDF link annotation
    • https://laxatutokowo.weebly.com/uploads/1/3/5/3/135387201/nisuzo-dumagujuwikoraf.pdfIn PDF document text
    • https://dapalaboz.weebly.com/uploads/1/3/0/8/130874192/2a743.pdfIn PDF document text
    • https://fawimerena.weebly.com/uploads/1/3/4/6/134630635/mibagape-lekegij-gaxenatuwixu.pdfIn PDF document text
    • https://dazuvekojuj.weebly.com/uploads/1/3/4/8/134863877/duwopogefo-vumitem-turetoxosaw-fokuro.pdfIn PDF document text
    • https://ruzopujiwinor.weebly.com/uploads/1/3/1/4/131452977/125374.pdfIn PDF document text
    • https://bawokuxuduxiv.weebly.com/uploads/1/3/1/8/131856062/tezobapufimoj.pdfIn PDF document text
    • https://bugojexipu.weebly.com/uploads/1/3/1/3/131398417/zegiluzit_tijavelejez.pdfIn PDF document text
    • https://cdn.sqhk.co/rogazume/igRhaje/20187064557.pdfIn PDF document text
    • https://cdn.sqhk.co/jutirupot/7bG1XLa/whatsapp_background_wallpaper_app_download.pdfIn PDF document text
    • https://juzudibat.weebly.com/uploads/1/3/4/3/134328144/f14295.pdfIn PDF document text
    • https://cdn.sqhk.co/tudenireso/EjfKtgi/one_talk_portal_login.pdfIn PDF document text
    • https://fogufufizanalu.weebly.com/uploads/1/3/0/8/130813948/pexugopus_kuxifete.pdfIn PDF document text
    • https://bemagage.weebly.com/uploads/1/3/4/5/134525224/veluwerimerakefepat.pdfIn PDF document text
    • https://5d3a3edc-1384-4eb0-a354-174dd54c13aa.filesusr.com/ugd/7f5dc5_177434661753485cbe5134fc33a2f7c2.pdf?index=trueIn PDF document text
    • https://c6de0af5-2a4c-46da-924c-839bccb102c6.filesusr.com/ugd/5f1f0f_9b5143ee15ab4995943e0e555a2aeb95.pdf?index=trueIn PDF document text
    • https://1ce8651a-bfbb-4b9a-b1bf-24b3b574775a.filesusr.com/ugd/ac72e0_507445b64bb34fb58443d85caac9e355.pdf?index=trueIn PDF document text
    • https://3e80c8bf-0031-4ca1-bfa9-4484641fefed.filesusr.com/ugd/08103e_9f8c055e1e60457fbe0d3011231b6647.pdf?index=trueIn PDF document text
    • https://0e733887-fd72-4d21-8b10-0a39cafbc931.filesusr.com/ugd/1e4d10_094daeb8ddac412b969ab5b71f810f11.pdf?index=trueIn PDF document text
    • https://856cb5e6-6c81-45ce-9604-b57907a15cd2.filesusr.com/ugd/cc3ca9_b850c6d402cc466da84f3862d4da0b29.pdf?index=trueIn PDF document text
    • https://dc688580-c0ec-4ade-910b-7abffd870ab4.filesusr.com/ugd/096b61_c497baffb55e4505b951edc0b1feb126.pdf?index=trueIn PDF document text
    • https://f9c81679-ddb1-4746-ab40-32673edc426c.filesusr.com/ugd/2eff39_3fa219427fc64d68aeb0d88a000d77bc.pdf?index=trueIn PDF document text
    • https://3c45aaf8-24f3-4cde-9773-cf44a0a970d3.filesusr.com/ugd/ae7d54_24c2661785114af193819e39702140cc.pdf?index=trueIn PDF document text

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