Malicious PDF — malware analysis report

Static analysis result for SHA-256 60c9f022a6a6daf5…

MALICIOUS

PDF

45.9 KB Created: 2020-11-01 11:43:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 554eabca0e3a5aef2e1e2cb0c82c2eea SHA-1: 8f4bd09603d131d789ff788fc4b39e497721eb0a SHA-256: 60c9f022a6a6daf59063f876b9ff1bb3a5cc4aad5b675624287bd9a9fe01f420
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.me/123?keyword=the+ultimate+sonic+flash+game In PDF document text
    • https://gazesomudari.weebly.com/uploads/1/3/1/0/131070071/53934b0627365.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366976/normal_5f91d25b80364.pdfIn PDF document text
    • https://niparazuxadema.weebly.com/uploads/1/3/4/0/134040736/soveniwurosujef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373757/normal_5f9e50b9e35de.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://cdn.shopify.com/s/files/1/0431/5326/0706/files/changes_in_the_land_william_cronon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4b5da2a-28a0-4e5f-92fb-28651e67aaa6/23950251990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8561/8070/files/7489102629.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d20cfd32-6879-4ff0-a081-5d020d6b3113/44260644279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8359/4909/files/54636309191.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/vetenitufamavutuxadawalig.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_off00006a0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A0C 5028 bytes
SHA-256: 55bc8a7ec68fd52f3f8572cecbffb981fba3c570f094f44e6c9bd5e90dfe888b
font_01_sfnt_off00007b09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B09 9932 bytes
SHA-256: 1675a75daf0e69557bd5b48e5e7ca54eb6eb9532608521f516e1b881d18cca31
font_02_sfnt_off00009d1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D1F 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3