PDF malware analysis — malicious · 789d3c1243ef2be8

MALICIOUS

PDF

50.4 KB Created: 2020-11-09 08:16:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20

MD5: 7a9ada6ef2bb80b21fb06f146938a7d4 SHA-1: 27eb7c9aaaa7951ba0175f194bb79314ff385282 SHA-256: 789d3c1243ef2be8401629be2d88026739f45243cbb782fab44f1469f241e826

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/aws?keyword=wickes+furniture+store+locations PDF link annotation
- https://cdn-cms.f-static.net/uploads/4366364/normal_5f873b3f722de.pdfIn PDF document text
- https://foxagizak.weebly.com/uploads/1/3/4/3/134332010/kezixapowibot.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369786/normal_5f90b8c670c2a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368218/normal_5f880bb99917b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407057/normal_5fa6e674434a0.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://fulebiw.files.wordpress.com/2020/11/49725108445.pdfIn PDF document text
- https://juxabugu.files.wordpress.com/2020/11/67210158662.pdfIn PDF document text
- https://s3.amazonaws.com/pibabopuduj/rotisserie_oven_chicken.pdfIn PDF document text
- https://juvibix.files.wordpress.com/2020/11/wazasusegupaxusijip.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_off00006c0a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C0A	4952 bytes
SHA-256: `9b8dc2e367cfe143a65494dec0a9472a26224994fd16b95c18791cbb01f9cf30`
`font_01_sfnt_off00007d07.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7D07	11060 bytes
SHA-256: `1b1300a5e2cc9f8995e7e3d5a7af55478ae32374b79081df17b76a08ae4b48ec`
`font_02_sfnt_off0000a335.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA335	7572 bytes
SHA-256: `5f7d728f11292f4240c85b09bf3591668893d21f0a4eb48cc90813f971091f48`

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