PDF malware analysis — malicious · 5402366780b7d2e5

MALICIOUS

PDF

45.1 KB Created: 2020-11-06 06:39:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15

MD5: 3bf2634c78e4cb059e84955fb7aabf2c SHA-1: e84f6e9522b4dd12052aca3f2399a1b30f9dbea4 SHA-256: 5402366780b7d2e57ee226b8ebfa557ed702334424c0300e14101e8610240642

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=1111+meaning+1111 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4423757/normal_5f9ac37b2bc51.pdfIn PDF document text
- https://pevugubak.weebly.com/uploads/1/3/2/7/132740457/depeviteroxovasagela.pdfIn PDF document text
- https://suzokixuvajix.weebly.com/uploads/1/3/0/7/130776208/112e6cdaf.pdfIn PDF document text
- https://jigaxokere.weebly.com/uploads/1/3/4/6/134622899/d2990a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393183/normal_5f9757662dc3d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417206/normal_5f968138372d1.pdfIn PDF document text
- https://jawemojope.weebly.com/uploads/1/3/4/3/134399256/a673069c54.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/pukiza/sonunutosin.pdfIn PDF document text
- https://s3.amazonaws.com/gulapore/43706060662.pdfIn PDF document text
- https://s3.amazonaws.com/lefemijip/2019_nfhs_baseball_rules_book.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c134e900-5700-4997-a3f4-c3b7f178c6bc/36953779591.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a7b25543-8cfd-4206-8b9c-62ac807e0d32/36232988982.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_off0000742d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x742D	4656 bytes
SHA-256: `d97e50bc4fa749849cb78789cb76eda53e7f07d5ffe28dd59e75c43f196e5f6f`
`font_01_sfnt_off000083f6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83F6	10596 bytes
SHA-256: `c25e0c808d6a9fda83ebd8c7d77617db453ea153b88c6ae465219cb0e956d670`

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