Malicious PDF — malware analysis report

Static analysis result for SHA-256 2058ea73c21f55a8…

MALICIOUS

PDF

38.8 KB Created: 2020-10-27 12:57:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: ada52d7fdf8d4bc984668248911c9e4b SHA-1: 3afbea557580804ea36126590d066c194928f166 SHA-256: 2058ea73c21f55a8e8d6d9dce420e24ca65fa7db51391514a5f1d4771ff5043f
94 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure. The document body, though partially obfuscated, includes text that appears to be a lure related to '500 days of summer location' and the malicious URL. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://gettraff.ru/strik?keyword=500+days+of+summer+location In PDF document text
    • https://cdn-cms.f-static.net/uploads/4386365/normal_5f91818d30e5e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367645/normal_5f91589d4da9a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374366/normal_5f89621b75d71.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366376/normal_5f8757e526f1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373526/normal_5f9331a1de15d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371787/normal_5f8d6510aedf4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383687/normal_5f8ef32151d40.pdfIn PDF document text
    • https://buxivadoga.weebly.com/uploads/1/3/0/7/130740323/7072017.pdfIn PDF document text
    • https://rugurujumififez.weebly.com/uploads/1/3/1/3/131384765/8088835.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/4a530104-4c11-40f5-ae8a-0a80e9f4ea28/44800952905.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8baec22-8beb-4fea-87bc-682062e87dcd/sivutoxanoxazolafa.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/assemblies_of_god_church_constitution.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/magnetic_loop_antenna_book.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/29127873255.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/generalized_aggressive_periodontitis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8585/9490/files/wondershare_mobiletrans_serial_key_and_email.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/1791/6575/files/ligavidobogulelulotig.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_off00005921.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5921 5440 bytes
SHA-256: c5f1b3b6d383689108b276884c61fcbe9c081cf609eb4c0e0dfa4d7004ab47b7
font_01_sfnt_off00006b8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B8E 10124 bytes
SHA-256: 8823c5fb0953c5f3111d8bf0f766be16de3c0b743bee30d0411e59cf49c759f7

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