PDF malware analysis — malicious · d30646ac01549620

MALICIOUS

PDF

44.7 KB Created: 2020-11-06 03:46:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15

MD5: 1773b23102a6d92f3738efd488dd3a48 SHA-1: 9f1d22b170ffa460027efa799e9c082b691ddf7f SHA-256: d30646ac01549620e6a999aabe3d2b62920ec0ed043585ccbd235426cc320aec

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=paper+towel+holder+wall+mount+white PDF link annotation
- https://cdn-cms.f-static.net/uploads/4387919/normal_5f8d87914283a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377704/normal_5f8dfd0163502.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370302/normal_5f8b9e7ce6f51.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/nopomewegobij/78111807333.pdfIn PDF document text
- https://s3.amazonaws.com/teximikamukubo/15929062038.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/708db6aa-4e19-4a4e-b203-9242b436af5c/78095976113.pdfIn PDF document text
- https://s3.amazonaws.com/xuxifuzituwu/ea_koetting_baneful_magick.pdfIn PDF document text
- https://s3.amazonaws.com/muxegeza/judikawesedepujez.pdfIn PDF document text
- https://s3.amazonaws.com/ravuxudibure/ribiwopo.pdfIn PDF document text
- https://s3.amazonaws.com/megodipewukitoj/makalah_akuntansi_sektor_publik.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_off000061fc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61FC	4996 bytes
SHA-256: `737a58b562178bcb00c7b5e83f73f85401b7a8ca3eda31f7d47d3455079db2c5`
`font_01_sfnt_off000072d9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x72D9	11160 bytes
SHA-256: `af487e0de351f6c54de14f74b6be275f97c047fdd4151b6ea215e88f8bdad29e`
`font_02_sfnt_off000097c8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x97C8	4324 bytes
SHA-256: `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`

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