PDF malware analysis — malicious · 2b3b0527f0bae30c

MALICIOUS

PDF

38.8 KB Created: 2020-11-09 09:39:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11

MD5: cf2d985518149e8f3dbb212f923692a7 SHA-1: 8d46a8909c767427236738b5954ed7935cc6c2de SHA-256: 2b3b0527f0bae30c9a37e8cec7f1b94e92a704f752c04dedd379307587d78cd4

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=cm+3020+outdoor+antenna PDF link annotation
- https://josuligenubev.weebly.com/uploads/1/3/4/4/134451414/1062199.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372682/normal_5f8ac865b6c3c.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/tesotiwapax/it_works_thermofight_x_scam.pdfIn PDF document text
- https://s3.amazonaws.com/luxelula/64719445153.pdfIn PDF document text
- https://javevunugibu.files.wordpress.com/2020/11/castle_in_the_sky_orchestra_sheet_music.pdfIn PDF document text
- https://givolajokofe.files.wordpress.com/2020/11/japatewajaliwififu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f075e0e2-755b-4488-b025-0dacc0d634ae/fejemizowiwe.pdfIn PDF document text
- https://s3.amazonaws.com/dowavelaxam/bell_cafeteria_kumc_menu.pdfIn PDF document text
- https://s3.amazonaws.com/lijopavexanuse/86323499571.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c6f7b123-f0d8-4836-b3c8-ce8372e09223/simpson_electric_pressure_washer_1700_psi_manual.pdfIn PDF document text
- https://s3.amazonaws.com/lukepepe/16th_wedding_anniversary_gift_for_wife.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_off00005557.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5557	5104 bytes
SHA-256: `de0bee009c8d145676660de52e568585a0e2f9c3bac0f7bba7114157a684148e`
`font_01_sfnt_off0000669c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x669C	11508 bytes
SHA-256: `55a36f22669a279112447edf8868572e1bf45a43e78362086a62bb863460ac81`

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