MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous links to external resources, with a critical heuristic firing indicating it's a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=similarity+and+congruence+worksheet+pdf', which is also flagged as a malicious redirector. This suggests the primary purpose is to redirect the user to a malicious site, likely for phishing or further malware delivery.
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/pify?keyword=similarity+and+congruence+worksheet+pdf In PDF document text
- http://files.gloryinfocus.com/uploads/1/3/2/3/132302999/9157620.pdfIn PDF document text
- http://files.psychsisters.com/uploads/1/3/1/8/131858044/wilut.pdfIn PDF document text
- http://files.sunburylionsclubofohio.org/uploads/1/3/0/7/130739731/nuzilerorage.pdfIn PDF document text
- http://files.ncam.ac.nz/uploads/1/3/0/7/130776788/a94fe6a1c2f25a.pdfIn PDF document text
- http://files.flatlanderclimbing.com/uploads/1/3/0/7/130776158/mibokarekasama.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0432/2230/2888/files/rusejogawazotabatawesada.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8722/4214/files/pojimubov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9815/2866/files/biogenesis_of_ribosome.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4021/1105/files/31299017076.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4227/5485/files/51750498305.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9160/7190/files/zelizu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9860/9566/files/81093058438.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9534/9666/files/28576903239.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0070/9791/files/luvojovolejowilavikoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4293/9814/files/anche_in_italiano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0506/6913/files/lemexalulubepomibo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0776/1819/files/38111556352.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4464/0667/files/quickbooks_payroll_manual.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000083b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83B3 | 5812 bytes |
SHA-256: e7cc228835d8d6f1d18d5f01a5f3aea68885b97213673735805854dd7d2297f5 |
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font_01_sfnt_off00009757.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9757 | 10052 bytes |
SHA-256: 1ad8ce456b7ec41ab85735506b98b7d267e6ff2711646e504b3ee35c41359d6b |
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font_02_sfnt_off0000b9c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9C3 | 16072 bytes |
SHA-256: 24c5c481937acf4f4841e6563a6d7a18cfdb810806c94b09ac0ff4033348c1e6 |
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font_03_sfnt_off0000ce62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE62 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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