Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b5e6c5e231ef00d…

MALICIOUS

PDF

40.4 KB Created: 2020-10-31 03:29:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 338e690579a1362e9ba798532edf877f SHA-1: c12cf4301cf07d890e92feea99e6eebb71dac3c8 SHA-256: 9b5e6c5e231ef00d938b939cfd9afcda85aa01414a737f659d7f46cf5bab9a0d
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.link/pify?keyword=sea+ray+185+parts+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374372/normal_5f91e8097a40e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365547/normal_5f95af6abc00c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403539/normal_5f982ecf9ca77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392873/normal_5f97cfe706d27.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366308/normal_5f881e901995e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389370/normal_5f91cdd3c6de3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368265/normal_5f8ff5ca91d2c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370273/normal_5f9cada69b06d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370263/normal_5f9588a5c4ade.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379612/normal_5f8ee64e4fe6c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371523/normal_5f9c9d4e1cfb7.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/a4d1180e-2804-4461-9908-f72bd3ae5db1/luzupuwokezopijasuwi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b082f189-c88d-4de5-aa84-31e543457c79/73708678264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/6221/3789/files/bodoland_lottery_result_in_today.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5471/8358/files/17832476183.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9d63659-4683-488a-95e6-04e1ba60959f/55719681008.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000528d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x528D 5264 bytes
SHA-256: c616286cc29c77f8b001df6a11b5dc13f052c7b203ecbbb7b5a90562a4335754
font_01_sfnt_off0000645c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x645C 10076 bytes
SHA-256: 53037a183ea79b963efa273b3dd368c083ffc3eb057b279b0d6b3f25d76e98f5
font_02_sfnt_off000086da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86DA 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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