PDF malware analysis — malicious · 9e31ad3409eceb46

MALICIOUS

PDF

41.1 KB Created: 2020-11-09 03:58:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: 11f13d2221129a1c37bb766e76618fc9 SHA-1: 686b68efa10f3af2b223c3fccee1440f2f9694b0 SHA-256: 9e31ad3409eceb46c02b1c2c4e48dd9d8a5732bc85dbbdea535d5e078983ec53

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://traffset.ru/aws?keyword=bloons+td+battles+hacked+apk+2019 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4444377/normal_5f9ed9ab7c85c.pdfIn PDF document text
- https://gozozogedabasiw.weebly.com/uploads/1/3/4/3/134321967/nopodej.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366043/normal_5f8723342c7fe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366665/normal_5f91274194a13.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383300/normal_5f9c2597347c6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367294/normal_5f88fa4a037e8.pdfIn PDF document text
- https://vuxofuta.weebly.com/uploads/1/3/4/2/134235669/somexijamevelaze.pdfIn PDF document text
- https://kasukironumasex.weebly.com/uploads/1/3/1/4/131454791/vajelufalife_legujizubejaxe_galekesegefaxi_busonemi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393925/normal_5f9bc47b73e51.pdfIn PDF document text
- https://jipepusubame.weebly.com/uploads/1/3/4/0/134040653/texonibubajemobada.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://fidunonip.files.wordpress.com/2020/11/madelizopididam.pdfIn PDF document text
- https://tuxabavijig.files.wordpress.com/2020/11/37940387668.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_off0000603b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x603B	5800 bytes
SHA-256: `c16fca48b94dfd9cd97885c25a8b195f9ca3534d42eb199e0b402bd0b1a72b8c`
`font_01_sfnt_off000073f6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x73F6	10376 bytes
SHA-256: `f875f82c747303e056c9e41276512ffddfa195038f6f72866fb00a78d1cc4cf5`

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