Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad0c30bb48c87dfc…

MALICIOUS

PDF

68.6 KB Created: 2020-06-01 22:27:54 Authoring application: Aspose Ltd. (via Aspose.PDF for .NET 20.11) First seen: 2021-06-13
MD5: 78fe19e90c744fac2863c1ccb540cae9 SHA-1: 60fca12d645629e18165d42bfbc12b009b36b291 SHA-256: ad0c30bb48c87dfc0732e583dc798a763f90a27d825b374e940d6f73b95ef2a6
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The embedded URL, 'https://ggtraff.ru/123?utm_term=partial+fraction+decomposition+hard+examples', is the primary indicator of malicious intent. While no scripts were extracted, the PDF structure and the malicious URL strongly suggest a phishing lure, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier clean score 0.2003

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/123?utm_term=partial+fraction+decomposition+hard+examples In PDF document text
    • https://cdn-cms.f-static.net/uploads/4484806/normal_5fbb590a1c0b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_5f8a4cb252fd5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366348/normal_5f9320c16428a.pdfIn PDF document text
    • https://cdn.sqhk.co/kejofuvata/hfZFexZ/easy_buttercream_icing_recipe_for_cake_decorating.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391024/normal_5f987a910b728.pdfIn PDF document text
    • https://cdn.sqhk.co/jemajujo/0ibOgBm/mibox_apk_installer_for_android_tv_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418365/normal_5fa5605620f1c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491665/normal_5fcaacdd5d792.pdfIn PDF document text
    • https://cdn.sqhk.co/guxuboru/Zhf9nz7/infinite_growth_game_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/vogoxaginoje/staq5hc/tijatimekatugobizutoko.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4528915/normal_5fc40768d8188.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a0b36f7-759e-4e94-9b0e-e66fce994374/dugizuvepatobamebon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/224b006e-4726-475c-9acb-cea14a5fdf28/social_psychology_textbook_9th_edition.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_off0000d07d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD07D 5464 bytes
SHA-256: a5b2267f4b0ac6ac05ef7f5a8cdf86cbe19d5ec76bdcc9dd04d60fbcb4c65dd6
font_01_sfnt_off0000e22c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE22C 11000 bytes
SHA-256: 06556dfecc876ac77f06b0130b4f976d8ece2de14529513c57a661bf7c7ec3ff

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