Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba72cfd499d14d4d…

MALICIOUS

PDF

84.8 KB Created: 2020-12-05 22:46:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f6a076ad51630c655d6c9201f25d2742 SHA-1: d4a4791ee54263654d218cfede62dcdce21a10ed SHA-256: ba72cfd499d14d4d8ba2403358d0dc02fd12bc6c6069d4bc671c47d83d8d912f
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website associated with movie streaming, likely as a lure for phishing. ClamAV and ML classifiers flagged this PDF as malicious, indicating a high probability of malicious intent. The presence of an external URI and the ML detection strongly suggest this file is part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffnew.ru/strik?utm_term=frozen+full+movie+online+putlocker
    • https://cdn-cms.f-static.net/uploads/4413120/normal_5f9c3e4124966.pdf
    • https://cdn-cms.f-static.net/uploads/4475852/normal_5fc17e9645e34.pdf
    • https://cdn-cms.f-static.net/uploads/4383571/normal_5fb25c97655c6.pdf
    • https://cdn-cms.f-static.net/uploads/4465147/normal_5fa713f959b38.pdf
    • https://cdn-cms.f-static.net/uploads/4379034/normal_5f8c0bad337d3.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd2ec20b29ef464da7d61d/1606233795446/grupo_kalibre_50.pdf
    • https://static1.squarespace.com/static/5fc2eceac6d96458362f573e/t/5fc47ec508845d092419f412/1606713032770/sting_ten_summoners_tales_album.pdf
    • https://static1.squarespace.com/static/5fc5af41a3bf4b14abc9db24/t/5fcbb81c1ef6d1662ff5aa2c/1607186469421/86137605950.pdf
    • https://static1.squarespace.com/static/5fc2ae5e1c8c7413143d62f6/t/5fc524762dd96f591892bbb9/1606755446900/46343013716.pdf
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf8e4eaf37e3b64618f55/1606285551583/evaluation_vs_impact_assessment.pdf
    • https://uploads.strikinglycdn.com/files/22c191fb-4111-4f11-8605-6e1855cf2ca1/73729558480.pdf
    • https://static1.squarespace.com/static/5fc55f6d5bcb0228a2a0640f/t/5fc945c1a436e27eebfc8113/1607026114447/donna_grant_dark_sword_series_epub.pdf
    • https://uploads.strikinglycdn.com/files/dd734297-b4b7-4f69-bd72-9b814baf07f9/8170449899.pdf
    • https://static1.squarespace.com/static/5fc54c636609fd0ee7ae99b9/t/5fcb5efd85bc3a28a60972c1/1607163647561/xaxiseruwulegolori.pdf
    • https://static1.squarespace.com/static/5fc19d720a2757459be7f0be/t/5fca895e0b395c014dc9e420/1607108962540/cheap_marketplace_cars_for_sale_by_owner.pdf
    • https://static1.squarespace.com/static/5fc56ccf9955c744b559bc7a/t/5fc6f311a038a451bce04564/1606873873805/neon_city_desktop_wallpaper.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000103e3.bin
52384035da21e1e507eba1e97ecb2b524aa3e82ed3fb96ecb0baf78f89b786bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103E3 4784 bytes
font_01_sfnt_off00011424.bin
2492893c6b1243b099fbeea6981f44a0fa79914e01c5ae77858342f6eb4021da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11424 10520 bytes
font_02_sfnt_off00013829.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13829 4324 bytes

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