PDF malware analysis — malicious · f78b2e268ccca92c

MALICIOUS

PDF

44.1 KB Created: 2020-11-08 19:14:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: 740e7205ad9ef8c97f8c81d27e6a5e29 SHA-1: 95dc3675f86c707b7a99420858392e96f9f7429d SHA-256: f78b2e268ccca92c5631eded9a06478c2d1992367ccb73a3099f682f57eae4f0

76 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
External URI info PDF_URI

PDF contains an external URL action
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://trafficel.ru/123?keyword=unblock+minecraft+125 PDF link annotation
- https://rezizeme.weebly.com/uploads/1/3/0/7/130775554/8d959c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365652/normal_5f875544919da.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375528/normal_5f8b0bc93e516.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/dekogamik/68841109732.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cabf1284-0a9f-4181-83ab-aeb61c4f3132/zetarubawip.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1ed07d4e-13e9-4e69-8264-16ec3ef08f70/lyddie_book_quotes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/25f61fe6-1549-4b73-8890-f6cc827fc5f9/vavazuresumewefif.pdfIn PDF document text
- https://s3.amazonaws.com/luxelula/behavioral_economics_syllabus.pdfIn PDF document text
- https://s3.amazonaws.com/sifawekujiki/70417763345.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3b38d113-bc3e-4bd8-b63f-da82cd9dec92/edge_pro_knife_sharpener.pdfIn PDF document text
- https://s3.amazonaws.com/zuxadol/87312871263.pdfIn PDF document text
- https://s3.amazonaws.com/muvazi/asus_vs278_manual.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_off00006bbd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6BBD	5352 bytes
SHA-256: `30e0fcd858ecde37db775323fb3f35f57d0672797327d474c811b0e74189339e`
`font_01_sfnt_off00007df1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7DF1	11052 bytes
SHA-256: `6f1aad512fe34cc164e1325985520fdbf957e17e6edaf1557014f0c064c2df7d`

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