PDF malware analysis — malicious · 35e43e31606498ed

MALICIOUS

PDF

35.8 KB Created: 2020-11-06 13:02:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11

MD5: 84bd7bb84dfe8a3e298b5df5fa04fae8 SHA-1: f6625c39e4e807e93f125d9702556d29b1748483 SHA-256: 35e43e31606498edba73307018221b63dc3f197d7845d52ee0631ca7439c69ac

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/aws?keyword=orion+spaceprobe+130st+eq+drive+motor PDF link annotation
- https://cdn-cms.f-static.net/uploads/4384650/normal_5f912d3ea445d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386361/normal_5f97b8b8b72f6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365580/normal_5f942861bf90e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365589/normal_5f870d85e6439.pdfIn PDF document text
- https://rijizego.weebly.com/uploads/1/3/0/7/130776487/5441eb9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378160/normal_5f8b83e072f46.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372101/normal_5f99fa33da069.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/ad366b5a-2c29-458b-88ce-586dec7e4e73/zumidarefepejovakodar.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c330067a-82a9-4a37-ab8c-26e01408d885/67106307081.pdfIn PDF document text
- https://s3.amazonaws.com/zukukelejurotef/mega_man_10_boss_order_weakness_chart.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/387c0f65-445e-41c3-bffd-8321de0d30ae/26731314469.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_off00004a2e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4A2E	5896 bytes
SHA-256: `c25f22e8ac291e4a75f861dc620e6ca46b6d2bb560ef5d92362cf5662b2cde6c`
`font_01_sfnt_off00005e2b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E2B	10164 bytes
SHA-256: `34833ec1b688d9da03f9f132effe460c3f74d4795b958ff00d6ddb84f6865003`

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