Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a693278b37dd3b5…

MALICIOUS

PDF

71.8 KB Created: 2021-02-06 01:57:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 0b52ed1781d3cda6fcae18333fa56468 SHA-1: cbbb0ee183c54348c50da2f6bfdfb012277ea16a SHA-256: 3a693278b37dd3b53516d6877ad5da1e5f78610bf36c558cead9bbe3e14668e7
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL leading to a suspicious domain. ClamAV and ML classifiers identified this file as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, appears to reference Nike Pegasus shoes, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/123?utm_term=nike+pegasus+30+womens PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4389571/normal_6016c697cdcf6.pdfIn PDF document text
    • https://cdn.sqhk.co/gabadifofibo/MhiVOij/kamobame.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvinudubuno/6sHjbgf/cpr_first_aid_certification_oregon.pdfIn PDF document text
    • https://cdn.sqhk.co/tizudukokeni/qVibvje/music_video_editor_free_video_maker_videos.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxosutuku/jbfuAfz/jupopozututoruxagoz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418185/normal_5fc864a74adbc.pdfIn PDF document text
    • http://vewedomodisex.22web.org/music_sheet_notes_names.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471096/normal_600b6d67529d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410447/normal_601651d584f76.pdfIn PDF document text
    • https://cdn.sqhk.co/papusabefo/Ele6shd/zuma_frog_video_games.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412593/normal_6010efa0751a6.pdfIn PDF document text
    • https://cdn.sqhk.co/kokedipemi/jjjhhcU/teddy_roosevelt_shot_during_speech.pdfIn PDF document text
    • https://cdn.sqhk.co/nizekidido/gQXhfgg/namuraxisanekigiw.pdfIn PDF document text
    • https://cdn.sqhk.co/gudijupimeb/MhbYHih/residential_electrical_meter_installation.pdfIn PDF document text
    • https://cdn.sqhk.co/bosesegivu/hemEUid/rock_pokemon_weakness_fire_red.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/mejados/70279770175.pdfIn PDF document text
    • http://paruwegugu.rf.gd/proforma_invoice_template_xls.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/36598154212.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cdd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDD1 5244 bytes
SHA-256: c87148f1ad72899ac1a4a879d1bc5a03ba1358b18b330029ac2cd13cbefcb608
font_01_sfnt_off0000df9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF9C 10616 bytes
SHA-256: 72556706c377bcb2f677b0df4a9b50a056a6a40382190a0bde8141f6d635a620
font_02_sfnt_off000103ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103EA 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

Open this report in the interactive analyzer, or submit your own file for analysis.