Malicious PDF — malware analysis report

Static analysis result for SHA-256 28abb24045427645…

MALICIOUS

PDF

59.7 KB Created: 2021-03-15 16:33:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 560fbe1eff5b901a156b200b4da59bcc SHA-1: e12822f22a6b071a919e8808e022a18453dffcc3 SHA-256: 28abb24045427645f4f296a8504d56b979c9ed533e04f7240e47a0100327d10c
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

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 0.6870

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/strik?utm_term=diablo+trinity+t1000+vehicle+list PDF link annotation
    • https://danexuxubusam.weebly.com/uploads/1/3/2/6/132695747/rupugikaxakiboxukaj.pdfIn PDF document text
    • http://idealslimitalia-official.site/kugakuvortn72y.pdfIn PDF document text
    • https://falosaxosudo.weebly.com/uploads/1/3/4/0/134017699/a9fab579696262.pdfIn PDF document text
    • https://cdn.sqhk.co/zafowavo/jcG6zrm/sigefeja.pdfIn PDF document text
    • https://cdn.sqhk.co/fusojafiza/eu1giig/76536365675.pdfIn PDF document text
    • http://alcexpress1.xyz/libro_las_batallas_en_el_desierto_jose_emilio_pachecov36vy.pdfIn PDF document text
    • https://cdn.sqhk.co/tobijoge/SIiamSm/how_to_deactivate_my_digicel_data_plan_guyana.pdfIn PDF document text
    • https://wumaviki.weebly.com/uploads/1/3/0/8/130874148/wukukapeniwagejap.pdfIn PDF document text
    • https://cdn.sqhk.co/satukevaguka/RViaqZG/8639338.pdfIn PDF document text
    • https://cdn.sqhk.co/wifavizen/icGgdji/top_100_djs_2020_list.pdfIn PDF document text
    • https://nibawomufexax.weebly.com/uploads/1/3/4/3/134371272/kukivojobigizenan.pdfIn PDF document text
    • https://cdn.sqhk.co/famuxina/r5GEjdU/psx_emulator_for_pc_windows_7_64_bit.pdfIn PDF document text
    • http://inscarusa.info/thomas_merton_new_seeds_of_contemplationgcn4w.pdfIn PDF document text
    • https://cdn.sqhk.co/figakeves/h2ujijj/vintage_motor_racing_jackets.pdfIn PDF document text
    • https://vasogumodi.weebly.com/uploads/1/3/4/5/134593232/a766fd82bc534.pdfIn PDF document text
    • https://definifizuzum.weebly.com/uploads/1/3/4/7/134759181/xogolarefeti_raxuwip.pdfIn PDF document text
    • http://uchebnoe.website/nugenevufibupudimezi4mqkz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26267b49-d69f-4546-8246-b278ed508b86/47337954390.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e1887be-79d1-499b-89f0-7e696c09b86e/19190116338.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0af5618d-232c-4e25-92b9-c9fbdbb01404/39675923930.pdfIn PDF document text