Malicious PDF — malware analysis report

Static analysis result for SHA-256 c970f35975cb9f93…

MALICIOUS

PDF

82.2 KB Created: 2021-03-04 23:01:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 528e422dab8f25ab4956824f0fd703c1 SHA-1: b73b09b7d30f39ccdb4ec1addf41d47c4df20ac2 SHA-256: c970f35975cb9f939421b444ecc6242d292404244d6aba7f1c1879cfce4c9431
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that leads to a domain associated with malicious activity. The document body, though partially corrupted, suggests a lure related to a 'Britax pavilion car seat cover replacement'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution via the embedded link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://xajibur.ru/wb?keyword=britax%20pavilion%20car%20seat%20cover%20replacement PDF link annotation
    • http://grandov.pro/how_to_work_a_room_chapter_1_summary7ulmn.pdfIn PDF document text
    • http://bosnoslovnoejelaniekupit.xyz/putudejemwhu5t.pdfIn PDF document text
    • http://btsworld.org/toeic_reading_part_6tfw3y.pdfIn PDF document text
    • http://smartbright.club/zamovupegenupiwoxanodtsrj.pdfIn PDF document text
    • http://naykaryadom.fun/uber_driver_dayton_ohio1kl3q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xezonijida/general_accountant_job_description.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2cb8105-3fdf-41c7-8e29-a0011fd53ef7/why_is_my_logitech_wireless_keyboard_lagging.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d676a1c-bbf6-471c-85c9-2ebd47ea60ec/39554957369.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/85253408957.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ea46c1c-a2d6-4bf1-8a61-4ce1cc1f30ef/bowulebaf.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/9279180488.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/140046e7-75e0-4914-acd6-dfe8976f113f/xazibavenadadifovulij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50cf8802-ce7d-4f28-80a2-2804ddcd54cc/donate_clothes_philadelphia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9daa461-cf6e-4ad8-adce-80a5f4f2f6d9/kenmore_series_100_washer_error_codes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cc2fee5-78cc-4278-babe-a3aae276d511/how_to_set_watering_days_on_orbit_timer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/211a10d5-d6c1-4d50-ae75-f47406cc1e0c/is_demian_a_good_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/610ac370-9b3e-4054-a25a-2b64c130a393/redimabaxapurodakufubuvix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a98fb7e7-9ee2-4c72-8051-6893757eff91/twilight_part_3_movie_download_in_tamil_isaimini.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bde8f6b5-c25e-41de-b135-6433ea394bb2/51602430749.pdfIn PDF document text
    • https://s3.amazonaws.com/jujadodedaruxix/vukuvegexifekum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ee74be3-0d3d-4a3e-b977-27de30148044/what_lights_should_be_on_my_ont.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dd22e0d-34f2-4bb0-a6de-cf9313416b12/34549490282.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e64c4b36-7134-4c5f-aeee-76eb60abf0c9/can_you_take_the_written_driving_test_online_in_new_york.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e91cbe2-fef7-4a41-ac9f-e7663d1f3441/xavunuwaxatilulizu.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000102cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102CF 5256 bytes
SHA-256: 1d3d3a13380c318dadbba757baf58d0ad48893b6a27a801394b69a363bdbc42b
font_01_sfnt_off000114a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114A1 11232 bytes
SHA-256: e909fcba9f10528eeba3f00557fb1b889fbdf5978dde39333203a111c913cef0