MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised with a keyword related to 'discord public servers'. The document also functions as a link farm, pointing to numerous other PDFs hosted on various domains, many of which are also suspicious. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.
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=discord+public+servers In PDF document text
- http://files.dats-il.com/uploads/1/3/2/7/132710704/sudetifelejojivifa.pdfIn PDF document text
- http://files.thelewisartgallery.com/uploads/1/3/2/7/132740838/9044599.pdfIn PDF document text
- http://files.fritosport.com/uploads/1/3/0/7/130739175/93ff397.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/1/0432/3262/4808/files/36387302277.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2940/5600/files/rumadivizurokegi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1828/8277/files/4900017508.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6900/6236/files/dev_beats_down_low.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0181/3915/files/tusun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0753/1414/files/bumebaliwab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/datumaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3651/5221/files/54506583016.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5417/8216/files/68490998508.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8701/0715/files/87344273876.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000671d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x671D | 6440 bytes |
SHA-256: a606a6dede3b99472d2ac97761204782646b5f75106b48d1abccbe9a99ca9a4c |
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font_01_sfnt_off00007711.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7711 | 5056 bytes |
SHA-256: 39bd0c10517b9b097fdcd93383e4ea51d5709f5bfcf58f49205c835434cf4f86 |
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font_02_sfnt_off00008852.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8852 | 20176 bytes |
SHA-256: 3f8ce7787853ee31fa9a82c08612d028270443d9aee24ceba5f8185e23af6cdc |
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font_03_sfnt_off0000c582.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC582 | 10668 bytes |
SHA-256: 9f6ab5bef4c7bca57959bb43b3a954bc21564568797d4393abca5baaf69ff7f0 |
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font_04_sfnt_off0000ea62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA62 | 19100 bytes |
SHA-256: 875980e045d1c787f27f96cf01812d0b2029f3d28ce1a4334776c31a060630bf |
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