Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc3bb02c7dc25c5b…

MALICIOUS

PDF

47.4 KB Created: 2020-10-31 00:18:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 526d372113122eca8e131455cff02cac SHA-1: 9d2e70ab6f555864109dda13bff284f29287ac55 SHA-256: cc3bb02c7dc25c5be87cc58be95df843fdaee0646a1171a81c47388281e6dee9
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://ttraff.link/pify?keyword=production+possibilities+curve+worksheet+answer+key In PDF document text
    • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/bilezatax_ledup_xijaxilun_januvilisiziso.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375699/normal_5f8bcbad3fa7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366337/normal_5f92a0b01de50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374532/normal_5f9b64636bb3c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/695891ac-0cfb-4e3d-b2ea-4408beb8aec7/vimefapesidutomorerazer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/1262/6855/files/pressure_gradient_force_and_coriolis_force.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/septa_127_bus_schedule.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62844798-5107-4783-bede-8b6ad1c2e8ee/22194991510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0508/1759/7623/files/90259362425.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c602bfe-2edf-405d-98b9-98b9b9fc8f2d/72221900567.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/22263805454.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C78 5504 bytes
SHA-256: 47d9ac89b18c9652553e19abeb04b1bb64e4771f5c9edf39acc77387975f9c19
font_01_sfnt_off00007f30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F30 10164 bytes
SHA-256: 3fbe2ad5f461626e995e56591874f61dea4a53955b21feb70245180c305e4e93
font_02_sfnt_off0000a1eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1EB 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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