PDF malware analysis — malicious · 67314e94e63a7d4a

MALICIOUS

PDF

45.7 KB Created: 2020-11-05 15:43:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: 751d02a32354437013cfa046251fe828 SHA-1: f7438e2a3a8ffcf405a1cf00040af845bb6765d1 SHA-256: 67314e94e63a7d4a083a5ada1400b57fff963db818cc0e59af7db8645c5c2eec

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://trafffe.ru/aws?keyword=a+year+down+yonder+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4417824/normal_5fa2e84168082.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415739/normal_5fa25b0ba1047.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372373/normal_5f9cd6bb3fa91.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/abfd1693-9354-4cb7-ad5a-accf44c63c56/razuwopajixodulobumuw.pdfIn PDF document text
- https://s3.amazonaws.com/posufij/toxuzomupegokenos.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d7a07d14-639e-40cf-b8a1-8353ecf5f711/jabujedadiwatil.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7698296b-dfd9-410c-a250-279f3cbcdc44/vutokupadobejad.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/25e3a816-1fda-4867-b9ba-78834dad08fd/80631165420.pdfIn PDF document text
- https://s3.amazonaws.com/xuxifuzituwu/moonology_oracle_cards_app.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3e4f01f8-3398-46ef-9448-451c8b0b6587/haynes_manual_mini_cooper.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_off00007389.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7389	5008 bytes
SHA-256: `89ec230017db1ba9e22415cc15d3e76038e0dab8f50fa199e6cb03ac52e70d63`
`font_01_sfnt_off000084c0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84C0	11068 bytes
SHA-256: `937ed537021016409fa528e38f2626ea2e0bc367fdbdcb4c56cc3b52f56597fc`

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