MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a prominent link to 'ttraff.ru', identified as a malicious redirector. This link is presented within the document body under the guise of 'recovery worksheets for mental health'. The PDF also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering via a deceptive link.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=recovery%20worksheets%20for%20mental%20health
- http://files.icihealthandsafety.com/uploads/1/3/0/7/130739288/8225453.pdf
- http://xilolito.dowhatyoulovenyc.com/uploads/1/3/1/4/131452903/pixuxoribesu-votanofisajaxe.pdf
- http://bokolix.usedlicense.net/uploads/1/3/1/3/131379678/bidaroberefipuw.pdf
- https://cdn.shopify.com/s/files/1/0436/1139/0115/files/dugupofuzigonevogineluwok.pdf
- https://cdn.shopify.com/s/files/1/0448/6771/5234/files/nomenclatura_de_alcanos_ejercicios.pdf
- https://cdn.shopify.com/s/files/1/0436/5680/6553/files/wopux.pdf
- https://cdn.shopify.com/s/files/1/0438/1527/2605/files/paxobuxekebelifug.pdf
- https://cdn.shopify.com/s/files/1/0438/5721/5648/files/25493339031.pdf
- https://cdn.shopify.com/s/files/1/0433/1284/0862/files/reverse_linked_list_leetcode.pdf
- https://cdn.shopify.com/s/files/1/0428/1267/0111/files/will_county_assessor.pdf
- https://cdn.shopify.com/s/files/1/0432/0821/2638/files/assamese_alphabet_chart.pdf
- https://cdn.shopify.com/s/files/1/0429/7015/3113/files/vegofamibumamujavi.pdf
- https://cdn.shopify.com/s/files/1/0429/6769/5509/files/3590840061.pdf
- https://cdn.shopify.com/s/files/1/0451/3621/6229/files/94986033582.pdf
- https://cdn.shopify.com/s/files/1/0429/2080/4518/files/does_dns_use_tcp_or_udp.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000857b.bin4eed458f749ba76ab54f347eff44b50f6cc3b92fabecd369d6fe3a9d498d8b8b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x857B | 5448 bytes |
font_01_sfnt_off000097f0.binb414ac4965d10377523687b7783e8940490cac71a1a3f9a1d5c920fb5e970b35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x97F0 | 10424 bytes |
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