Malicious PDF — malware analysis report

Static analysis result for SHA-256 baaa80d56e07b367…

MALICIOUS

PDF

49.7 KB Created: 2020-10-01 18:21:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c5936b95a9d3e7b41d142318239124e6 SHA-1: c80164074678c1ab711dd98105776949bc042b8d SHA-256: baaa80d56e07b367ddf8806fe1a2611a160290e7da1ea2bca606eefc38980ccc
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://cctraff.ru/strik?keyword=a+genese+allan+kardec+pdf In PDF document text
    • http://nezepaxot.22ninthstreetu707.com/uploads/1/3/1/6/131637036/c3f08a1489a82.pdfIn PDF document text
    • http://files.awarenesscounselingcenter.com/uploads/1/3/0/7/130775660/pinaz-masej-dololi-romin.pdfIn PDF document text
    • http://files.criminalshateus.com/uploads/1/3/1/6/131636929/karugepazikun-porereko.pdfIn PDF document text
    • http://sumeweki.miftahinvestmentgroup.com/uploads/1/3/1/4/131408618/8424351.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/4677/7244/files/11357535596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4831/0683/files/gitovejosevonal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3259/8938/files/lorex_camera_system_costco.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7351/2359/files/vocabulary_workshop_level_d_unit_10_answers_choosing_the_right_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/genusiradezinodateduwuzog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07c150c8-7f5f-4814-9815-a4eb02fba53a/98846706030.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/921b3369-cdae-440a-93e7-8c0e840b7b17/12189860115.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18229ab3-2a6a-4678-ab7e-2f46fcbdc881/62036645996.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04ff5424-9e2e-48d8-b3a0-2c0585c3598e/4842788694.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/063e599a-c6ef-418f-a74a-ff74776f40e6/nugupelotimojopoduwof.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_off00008295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8295 5376 bytes
SHA-256: 0f0ee1375809eebe556371030f41c77eb4cd0d28cc2d6662e18122fe0a89d3bb
font_01_sfnt_off000094f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94F8 11040 bytes
SHA-256: c62801ec7886233ac4b24c5b76e7dc362963db72d604f5229b9851a28f8b98df

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