PDF malware analysis — malicious · e9f13e5237aa5e79

MALICIOUS

PDF

38.5 KB Created: 2020-11-05 18:43:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01

MD5: 5d522ec683292dfeae61935a9209706e SHA-1: e691e5201314e53f1a66d5b476dcc6adef57fb62 SHA-256: e9f13e5237aa5e79014dc369ae1c551267ebdfe3d90eebf85452ac3d91da45d7

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/strik?keyword=aviva+accu-chek+manual PDF link annotation
- https://fumubesoxumus.weebly.com/uploads/1/3/4/4/134485348/9317378.pdfIn PDF document text
- https://finiluxexolije.weebly.com/uploads/1/3/1/8/131856594/009f6df5f7df7.pdfIn PDF document text
- https://ruwitopiramowu.weebly.com/uploads/1/3/4/3/134364975/xulumakizikegin.pdfIn PDF document text
- https://nakumupapetiz.weebly.com/uploads/1/3/2/7/132741615/2615435.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/firigugixujotov/general_electric_p7_wall_oven_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/50fcce48-5ab8-47cb-89a9-20f2db6b4b47/nugiwazavofopezepisel.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a25c220a-5208-4810-bfc9-4ec6efa535a1/46583082035.pdfIn PDF document text
- https://s3.amazonaws.com/bofake/pineville_jr_high_uniforms.pdfIn PDF document text
- https://s3.amazonaws.com/gurowozenupifi/96917551178.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0506/6591/4555/files/ews_form_gujarat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0503/6343/3120/files/82924506414.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_off0000592a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x592A	4912 bytes
SHA-256: `ebb353c19bfc2c271a948ca68fccd70a4ad7da6bf4dd5c26c72c3ea18a0d0b6d`
`font_01_sfnt_off000069c8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69C8	10656 bytes
SHA-256: `2d37ec700d986cd09eb58789f9fedbdd02efec04fd5e569b39f656d43c844ce4`

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