Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c63a64f1be887a8…

MALICIOUS

PDF

63.5 KB Created: 2020-12-23 14:41:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0f06cd08dc1db5732f4f9cab7b90dffd SHA-1: b782879846c7b69c7a05eff7cf044581396ce22c SHA-256: 9c63a64f1be887a87e1bd3094e69ef81f90d659048dce8deb3a0ece52f2e3fa2
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains text related to 'Wawa near atlantic city airport', likely a lure to direct the user to the embedded URL. The embedded URL points to a suspicious domain, suggesting the document's purpose is to redirect users to a phishing or malware distribution site.

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://trafffe.ru/strik?utm_term=wawa+near+atlantic+city+airport PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4453909/normal_5fe2afc3de634.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389830/normal_5f922d40cab5e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408187/normal_5fd34e8b8fa55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370762/normal_5f8a6b780db3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378164/normal_5f8fe7993ad81.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494877/normal_5fc2818ae4e3a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412588/normal_5fa02d4e6461d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378379/normal_5fdfc4d6a5557.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412377/normal_5fbf574a56c68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372960/normal_5f8f2cfe54c96.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/4c8de932-cd04-4e30-878e-98d5796c6ebb/82135637273.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/little_alchemy_2_unblocked_google_sites.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eaa61884-0f7e-44bf-b010-538941ff1ed9/jomiriv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d5ddb67-9f6b-4129-bc4a-f122d4701f4c/48563779530.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aaed497c-7963-480d-9690-d30df4434f91/69199308036.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01c80d3a-a339-49ab-9c9a-3cd04a665957/johnny_upgrade_2.pdfIn PDF document text
    • https://s3.amazonaws.com/bovenotojitowe/deuter_guide_lite_32.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/dipsite_full_form.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_off0000bd14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD14 4956 bytes
SHA-256: 80a50496c4451af702511070e815daa4e33c6160b656ffd3fcb1c8e25d11679f
font_01_sfnt_off0000ce20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE20 10192 bytes
SHA-256: 76f2516138b7bea4f5e5f3f44ec333e162de38c8f4f2d258787a7820fefb2052

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