PDF malware analysis — malicious · e489e4ebb5d3e4a3

MALICIOUS

PDF

51.1 KB Created: 2020-11-08 20:55:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23

MD5: f6c6fd3cb0b1f22eaf96692a15c3c4c4 SHA-1: 7abf1cee274bac280b5b71b6fa211c89f9521151 SHA-256: e489e4ebb5d3e4a3f5df9c71ea88bd6c90426d35d2c85a9bb95fd4fc65ccc343

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/aws?keyword=honda+civic+manual+transmission+1997 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4422168/normal_5f9c88ce816f2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4402252/normal_5fa553d0454c7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369783/normal_5f87e0be23d9c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365627/normal_5f8a293e41923.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4419654/normal_5f9edbb198668.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403557/normal_5f97a58d63ba8.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/tenunud/jewurotovaxibapesavegitoz.pdfIn PDF document text
- https://s3.amazonaws.com/vetamedisoz/juzadixufemenigowim.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8966a23b-9f54-49cd-9e11-7cda257b5d59/fivunideje.pdfIn PDF document text
- https://s3.amazonaws.com/rekawexuretowo/31730051455.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007a23.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A23	5156 bytes
SHA-256: `f82c43d5dfdf1e7b7ed8663bf55af9306beddfdfb6944b818383710acb0d11d2`
`font_01_sfnt_off00008b95.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B95	11216 bytes
SHA-256: `0006048cc422336b7ba29de10741739af4360b02c7b63f4646a71adab8c99aed`
`font_02_sfnt_off0000b198.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB198	4324 bytes
SHA-256: `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`

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