PDF malware analysis — malicious · 07fee252fd321274

MALICIOUS

PDF

43.6 KB Created: 2020-11-05 08:41:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01

MD5: f7214c4120e2636f2f9b1f4080223ef0 SHA-1: e271e1339132bee36fcfd224dab3bc25f84da4ab SHA-256: 07fee252fd321274ca72c86167daf4f722d19a780862d44e8e6ba28dce9c7419

134 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
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://ttraff.me/123?keyword=hard+questions+real+answers In PDF document text
- https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/d7445176.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4443624/normal_5fa353da631d9.pdfIn PDF document text
- https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/bupemigimamuvap.pdfIn PDF document text
- https://sewobefavewekog.weebly.com/uploads/1/3/4/3/134367647/fujejujezo.pdfIn PDF document text
- https://jazezuko.weebly.com/uploads/1/3/4/3/134389352/nilejilowanude.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367937/normal_5fa101e84fc29.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367017/normal_5f8aba6b58849.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/3fd38a4a-3155-424c-8d22-3423311c4b04/dukojepamekeviwa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/90a3e11a-d6d6-482c-8c22-33f369b64e1d/9613045785.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_off00006b9c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B9C	4996 bytes
SHA-256: `63704b853cd841663ed827d8c4bb344942f24da365b76b8c517fc5cef45bdc95`
`font_01_sfnt_off00007cb2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7CB2	11032 bytes
SHA-256: `e530a03984ef341aa9dafd2f3e16fe235d644bdd7b6f9c81d662dc4745ea02ea`

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