Malicious PDF — malware analysis report

Static analysis result for SHA-256 59b8817212ffd2cd…

MALICIOUS

PDF

70.9 KB Created: 2021-05-24 11:33:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: dbc328c499fa07a3b9bd0f42112779a0 SHA-1: 43987fce9aebadc7d6f7b474803b0e330283c110 SHA-256: 59b8817212ffd2cddbb6521bbd471a761a4c4e7e5ae2d489d9b13b5de2bc6da0
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of external links, many of which point to seemingly benign PDF files hosted on strikinglycdn.com, but one prominent link leads to golowaki.ru. The document body, though heavily obfuscated, contains text related to 'Pokemon x and y cheat codes citra', suggesting a lure to attract users to the malicious URL. The presence of numerous external links and the ML classifier's high confidence score indicate a malicious intent, likely to drive traffic to a site that serves further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8042

Heuristics 3

  • 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://golowaki.ru/strik?utm_term=pokemon+x+and+y+cheat+codes+citra PDF link annotation
    • https://jezaborerokifev.weebly.com/uploads/1/3/4/3/134392790/gisowifuxuvuz.pdfIn PDF document text
    • https://dekodisiga.weebly.com/uploads/1/3/6/0/136051758/e4ff6bf7324451e.pdfIn PDF document text
    • https://lekomitigukajar.weebly.com/uploads/1/3/5/3/135345412/gizikinabiberajawizo.pdfIn PDF document text
    • https://degevibuv.weebly.com/uploads/1/3/5/3/135316410/6756532.pdfIn PDF document text
    • https://bijivabaj.weebly.com/uploads/1/3/4/6/134601785/520c728889a.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e71dd7a3-a76c-4108-b45c-591bb7dae7da/blank_board_game_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f56f4e3-067d-4e70-9d30-72c9ea262d3e/ninja_blender_1500w_how_to_use.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99b3f528-7b6f-40ba-ad7c-6936d46bfc2b/the_red_book_jung_for_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ab18696-2310-450a-8684-46ebc53575ba/6207947621.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d34d3a14-6625-4a3a-b18e-3d3d7f625688/33862951820.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2040512e-546a-4024-8748-c4ce71d4b039/39546915735.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c09e5f32-6c14-41da-8852-cd55fec036ce/62914892812.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c611f1a7-2f9c-4022-86d4-56ee09eb4bf4/59888176797.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b418191-823a-4821-81b4-31d88914844d/how_do_you_describe_tone_of_voice.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06470c22-36fa-45e8-a745-36902e671350/62960280582.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b193540f-b41b-48e1-b491-a546548ee950/functional_independence_measure_certification.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bd66995-2e08-4b5c-b4e2-230d8a78d649/33410756201.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce62c1f0-afe6-401e-bb38-81aad5a2c51c/how_to_use_omron_intellisense_blood_pressure_monitor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c54737d2-8296-414f-b545-d3fa6d895955/12665640892.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17cd3691-5bd7-4929-a8c2-e5378c643ecf/95528749907.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08d3aced-c119-41f8-a1d5-d81046ecdbd0/jalugakagotabatisi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d43a470a-0002-4092-b397-f20dd892ad5b/die_unendliche_geschichte_film.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d2b6944-12fb-4f5c-a2db-8ee694652044/htp_candle_wick_chart.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81f045fa-deef-40fc-9910-213338c7fc7d/95545219169.pdfIn PDF document text

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