Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dd67bd928c60c13…

MALICIOUS

PDF

80.4 KB Created: 2021-04-26 10:51:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 4275e942d2fe217536a6c703126a99d9 SHA-1: 5e92e317863cbe7b726c056018e6cfc29cdd6d3d SHA-256: 4dd67bd928c60c138e52332f93ff07766c576a76a877768094f9123dbbb5e3b1
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects to a phishing site, disguised as setup instructions for a Garmin device. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. No scripts were extracted, but the presence of an external URI is a primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://seumenha.ru/strik?utm_term=how+to+set+up+my+garmin+etrex+10 PDF link annotation
    • https://cdn.sqhk.co/vesagivara/QMibhgX/milurokefuvupiva.pdfIn PDF document text
    • https://cdn.sqhk.co/terasovo/ijSHjfv/kubitululatumudukemaw.pdfIn PDF document text
    • http://firstreadersclub.com/41266193872cclf9.pdfIn PDF document text
    • https://cdn.sqhk.co/waxoxewanuvi/dh9hbhh/meteor_shower_july_2020_ohio.pdfIn PDF document text
    • http://idealslimitaly-ufficiale.site/bijufadupoxogi40pww.pdfIn PDF document text
    • http://easylearning.space/zepobomasezufinepoxoebo3j.pdfIn PDF document text
    • https://cdn.sqhk.co/roziguze/axoSgfr/92318674646.pdfIn PDF document text
    • https://cdn.sqhk.co/wujodazera/HQzyida/86645402786.pdfIn PDF document text
    • http://meetsoda.pro/bozupojoxuvaplieh3.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/jawusawar/foam_board_sheet_cut_to_size.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/mabebejuxunuxogup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fe5322a-959f-4b9f-bc7d-28375f51a571/fafikotanu.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/how_much_does_a_whole_makeup_kit_cost.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a907be70-50d6-461b-9d61-2cbc62abcb9c/the_drunkards_walk_how_randomness_rules_our_lives.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/a_j_letter_images_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/adcbb7d5-c1f1-4c43-82f6-00906b17f191/gajute.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99e9b3e1-ce06-4508-b25c-91327829f63e/what_animal_quiz_questions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9c9ec1b-83b8-48c0-a1ee-0c672d9c6b36/kemukukawesi.pdfIn PDF document text
    • https://s3.amazonaws.com/fekazudabo/17675490209.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a2115ee-66f5-47f5-9ce6-3df00a710619/zuwasetozagenagosuvoxaj.pdfIn PDF document text
    • https://s3.amazonaws.com/panokojol/nfl_schedule_excel_spreadsheet_2019_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/212e0f6b-22b9-4125-8cd8-69960599e7ca/battle_angel_alita_mars_chronicle_manga_online.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_off0000fc5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC5F 5524 bytes
SHA-256: e84b3ef8f33ea8b5914bf24048a3230dc2ad1877dbe8d476d8610e98302b0824
font_01_sfnt_off00010f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F32 10876 bytes
SHA-256: 83aa442a781dc16a36f91021add2fe17e95e8493864d745e48fbddf03b8887a9

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