PDF malware analysis — malicious · 3964ecfce3e7fef5

MALICIOUS

PDF

39.3 KB Created: 2020-11-09 17:10:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01

MD5: a2d226d34870abc3c63055d9a0cb1335 SHA-1: cfd11921024e4ce9591cb84ef862ada59d957eb2 SHA-256: 3964ecfce3e7fef5c6157db5010b5a28ac427656680c2348b6add7b5909e775f

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://trafffi.ru/123?keyword=quiet+odyssey+pdf+download+free PDF link annotation
- https://cdn-cms.f-static.net/uploads/4366335/normal_5f89299a7000a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374857/normal_5f906fa3a9b54.pdfIn PDF document text
- https://fiwimojulo.weebly.com/uploads/1/3/4/5/134525916/e68e5401c.pdfIn PDF document text
- https://luwiritogejoti.weebly.com/uploads/1/3/4/2/134266422/lusalavunugo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367687/normal_5fa4e20aae750.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386086/normal_5f8ca05ded20b.pdfIn PDF document text
- https://dizawiwutap.weebly.com/uploads/1/3/4/6/134629961/3172889.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/rogugagatuf/juventud_divino_tesoro_poem.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b2623d19-1a7a-402d-bfb8-ce34016d9ca6/10017949710.pdfIn PDF document text
- https://s3.amazonaws.com/saxefi/zoretozoloronodekela.pdfIn PDF document text
- https://s3.amazonaws.com/towutoginadivu/dogagazunubokowutojedejim.pdfIn PDF document text
- https://s3.amazonaws.com/fasanag/87712243222.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_off00005a16.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A16	5288 bytes
SHA-256: `996e51194c05ba0b667321c88bf16ba3436e6eec616a7f774d3767e667307cd8`
`font_01_sfnt_off00006c3c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C3C	10716 bytes
SHA-256: `1bef3ba5da46ae3a1f85e527cada7de1d02d56b2cd2ee80da7f9373aae2ae0a3`

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