PDF malware analysis — malicious · 3d99854cfc490ef5

MALICIOUS

PDF

41.8 KB Created: 2020-11-02 07:59:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23

MD5: d0948bfd34298635c621e1bf98a2d6c0 SHA-1: b5d0fb480d55f1a41b2e89f51e3095e5d0d57f49 SHA-256: 3d99854cfc490ef539fc92ff1c312a8f08bf82e7fe0c89c0377a97aa2737997e

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.cc/123?keyword=america+vs+atlanta+united+live+stream In PDF document text
- https://cdn-cms.f-static.net/uploads/4384483/normal_5f8eaa0f3b599.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373519/normal_5f9932572b6ad.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/jezaxojipevu/66220488600.pdfIn PDF document text
- https://s3.amazonaws.com/pewibim/apple_text_message_from_pc.pdfIn PDF document text
- https://s3.amazonaws.com/ronenitevodo/a_morbid_taste_for_bones_chapter_summary.pdfIn PDF document text
- https://s3.amazonaws.com/fasanag/nadejefijivu.pdfIn PDF document text
- https://s3.amazonaws.com/pisedij/homemade_deer_feeders_plans.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f7b66c26-0cc5-4edc-b327-d906d0802bb3/the_battle_of_the_labyrinth_chapter_1_summary.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0504/4410/7950/files/upload_image_to_google_cloud_storage_android.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000632c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x632C	5136 bytes
SHA-256: `ce7ea602047f6f638aec19153a8d7f2ebefd9bef780cd1d1c2409a9dffe6ecd4`
`font_01_sfnt_off0000748b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x748B	11144 bytes
SHA-256: `9f086ebcb0c795f1f7be2c89c1d87e875a9d8551124c4ff7c7dce60444b9157e`

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