MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links designed to appear as legitimate downloads, but one of the primary links, 'https://ttraff.ru/wb?keyword=intelligence%20structure%20test%20pdf%20free%20download', is identified as a malicious redirector. This suggests the document is part of a phishing or malware distribution scheme, likely using a spearphishing attachment as the initial access vector. The ML classifier strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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.ru/wb?keyword=intelligence%20structure%20test%20pdf%20free%20download In PDF document text
- http://files.rachelmariephotography.net/uploads/1/3/1/4/131438069/844036.pdfIn PDF document text
- http://files.alpsed.online/uploads/1/3/0/8/130813427/4288840.pdfIn PDF document text
- http://files.militzasiberians.com/uploads/1/3/2/7/132740836/aefdb.pdfIn PDF document text
- http://files.waiheelimu.org/uploads/1/3/1/6/131607174/nomuvawezilamaranu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2853/7753/files/83797831564.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/9350/5688/files/64127020616.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9869/4049/files/bobcat_service_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0009/4112/files/ganuvavupebuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6832/5029/files/1874317939.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9612/8153/files/suzonasadaveveze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0016/8597/files/91199815766.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5107/3174/files/luvifatetiruwugowana.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5153/2963/files/zivitudimagipetu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7410/1160/files/55847968238.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1195/6126/files/jenokidusirawosugepedev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9484/1246/files/50276475942.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bodadajigewodozisidezufe.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000063cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63CF | 5352 bytes |
SHA-256: 37d5d9d663d4a2122e1984a88a44456f1975c7b3dc7a7538204121526871162c |
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font_01_sfnt_off0000762b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x762B | 10376 bytes |
SHA-256: 089b9d0c7113d618e86123b2cf184b106e9e2d34b7e99752ac4c4101111c47b1 |
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font_02_sfnt_off000099bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x99BD | 16132 bytes |
SHA-256: 8c772610a8dd344f75c492c86de39e53278ca49f6778f20fd9a3e415d8f2216b |
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